HG 20557.4-1993 Process System Professional Engineering Design Document Review Rules
Some standard content:
Industry Standards of the People's Republic of China
Regulations on the Management of Process System Design
HG20557-93
Editor: Process System Design Technology Center of the Ministry of Chemical Industry Approval Department: Ministry of Chemical Industry
Implementation Date: October 1994
Chemical Engineering Standardization Center
1994 Beijing
Process System Professional Engineering Design Documents
Review Rules
HG20557.4-93
Compiler: China Chengda Chemical 1 Project approval department: Ministry of Education and Industry
Implementation date: November 1994-H
1 Responsibilities of all levels
1.1 Responsibilities of all levels of process system professionals
In order to ensure quality, the design and verification of process system professionals are divided into three levels: 1.1.1 Design and compilation
Design and synthesis are the responsibility of professional designers of process systems 1.1.2 Verification
Verification is carried out by designated: design personnel with high professional level and work experience in process system with revision or audit qualification.
1.1.3 Audit
The audit is carried out by designated process system professionals with audit qualification, professional leaders and process system professional team leaders. When necessary, the qualified room engineer or the previous engineer shall be responsible for the review of the documents, or the design manager shall approve it.
1.2 Division of Quality Assurance
For each design section or document, no one person shall be responsible for more than one quality assurance work. For example, a calculation control work cannot be the original design section, and the model name of a document cannot be omitted from the verification. 1.3 Signature of Design Documents
According to the responsibilities of each level, the relevant design and production, verification and review documents shall be signed respectively. Note! In due time, the responsibilities and documents shall be approved. 53
2 Documents and review rules required for process system design 2.1 Regulations for process system design
This regulation shall be prepared by the responsible person or the designated professional design personnel before the start of the process design, and shall be reviewed by the professional person in charge of the process system team, and approved by the design manager after the review by the department or the responsible engineering department.
This regulation is an important and guiding design document, which is a series of detailed design regulations for the next stage design of the process system, so it should be modified as little as possible. 2.2 Pipeline instrument flow chart (P diagram)
2.2、All versions of this report shall be designed, produced and accepted according to the Pipeline Instrument Flow Diagram Design Specification 3 (HG2055993>.
2.2.2 The auditor shall review the technical issues of the "version", "modified version" and "implemented version" of the diagram based on the base code verified by the auditor.
2.2.3 The auditor shall, on the basis of understanding and being familiar with the production process flow of the chemical process equipment (or process), review whether the process piping instrument flow chart is consistent with the process flow chart (I) published by the chemical technology expert or the requirements of the I diagram provided by the proprietary technology owner: review the equipment name, equipment position number, and the date of acceptance of each equipment in the diagram, and whether there are any errors and omissions. 1.z.4 According to According to the production process flow of the device (or process), the moving channels connecting the various equipments shall be checked one by one according to the pipeline medium code for errors and omissions. For each auxiliary material pipeline and public material channel in the process piping instrument flow chart, the medium code of the connecting pipeline shall be checked one by one for errors and omissions. 2.2.5 When carrying out the work described in 2.2.4, the pipeline channel code, pipe sequence number, pipeline size, and pipeline grade of all pipelines with required numbers in the pipeline instrument flow chart shall be checked as far as possible for errors and omissions: check the selection and representation of all pipeline valves and pipeline hazards for errors and omissions: check the pipeline flow direction arrows and connection symbols, pipeline numbers and diagrams for errors and omissions: check whether the change markings of the pipeline grade are incorrect and selected: check the markings of different diameter warnings Check whether there are errors and omissions in the layout, check whether the front and rear positions of the connection between each branch pipe and the main pipe are consistent with the pipeline surface design drawing:
2.2.6 Check the limit scale with position difference in the process of L-tech pipeline instrumentation, the ground line of underground and semi-underground equipment, the chain elevation of 54
containers and other equipment or the minimum elevation of equipment, the specifications of the valves connected to the equipment (excluding pipelines) and the valves on the pipeline! Whether the specifications are marked, whether there are special requirements for the pipeline slope, pipeline name or special position of the valve, pipe fittings or instruments, liquid seal height, etc., or the numerical boundary position of the pipeline, the boundary line of the late installation, technical burial and the junction and the two-phase flow line, etc. are marked. 2.2.7 Check the relevant sieves and drain pipes in the operation and commissioning of the process of L-tech pipeline instrumentation. Check whether there are any errors or omissions in the drain pipe and the sweeping point.
2.2.8 Check whether the markings of all equipment, pipelines, steam, electric drums and other types of accompanying pipes and jacketed pipes that need to be insulated and overflowed in the process pipeline instrument flow chart are incorrect and leaky. 2.2, 9 Follow the production process of the installation (or the previous sequence), and check whether there are any errors and omissions in the process analysis sampling points on the basis of checking the conditions of the accepted process test items. 2.2.10 According to the production process of the device (or process), check whether all detection and control instruments (including control systems) in the process pipeline instrument flow chart are read and missed on the basis of checking the main control instructions of the chemical process professional and the supplementary instructions on the control requirements of the process system professional, and on the basis of the cooperation of the automatic control professional: check the specifications of the on-load instruments, rotor flowmeters, etc. When it is different from the screen specifications, check whether the specifications are missed, and check whether the marking of the instrument position number is clear and slipped.
2.2.11 Check the specifications of the control valve and bypass valve in the process pipeline instrument flow chart, the status of the instrument air circuit break, and if there are different diameters in the control valve, check whether the marking is wrong or leaking. 2.2.12 Check 1. Whether the number of the pipeline instrument flow chart, the specifications of the safety valve (outlet) and the setting force are marked according to the relevant regulations: If the safety valve inlet pipeline is to limit the matching, check its pipeline size, pipeline length and the number and specifications of pipe fittings. 2.2.13 Check the marking of the steam trap position number in the process piping instrument flow chart. When there is a vent pipe before the front cut-off valve of the water flow valve, and an inspection sleeve is installed between the water valve and the rear cut-off valve, check the size and marking of the vent pipe and the inspection pipe. Check the marking of the steam trap opening pipe, filter, front and rear cut-off valves according to the selected steam trap model and installation requirements.
2.2.14 Check the symbols of the flow limiting manifold and the position number in the process instrument flow chart. 2.2.15 Check whether the abbreviations and markings of special pipe fittings (including special doors, sight glasses, safety sprayers, eye washers, mufflers, etc.) in process piping and instrumentation flow charts, auxiliary materials, and common materials are correct and missing. 2.2.16 Check whether the total number of plates of tower equipment, the plates of materials entering and leaving the tower, the gaskets or cooling coils, and the internal parts of the container are marked in the process piping and instrumentation flow charts. 2.2.17 Check whether the boundary connection marks of the pipelines from or to the boundary area in the process piping and instrumentation flow charts are marked correctly, and whether the markings of the pipeline numbers and drawing numbers in the connection charts are correct and missing. 2.2.18 In the process piping and instrumentation flow charts, there are parts with professional division of labor or scope of supply, and it should be checked whether the markings are carried out according to the relevant regulations. 2.2.19 In the process piping and instrumentation flow charts, there are For complete sets of equipment supplied by suppliers, the verification is to pay attention to the scope of supply of complete sets of equipment, design verification and! Whether the marking of the connecting points of the equipment supplied by suppliers is missing or not,
2.2.20 In the process pipe and instrument flow chart, the same question of "pending" should be verified. Whether verification is carried out, the marking method is not explained
2.2.21 According to the PI diagram, all process materials, auxiliary materials and public materials in the two PI diagrams should be verified, as well as the new food pipes, valves and main pipe fittings used in the installation. Check whether the legend symbols, instrument numbers, etc. of the sampler, etc. are complete and correct: Check whether the equipment number, pipeline number, and public material station number are clear. For example, if the boundary intersection table of all process materials, auxiliary materials, and public materials in the boundary area is selected in the first diagram, the content of the table should be checked for errors and omissions. Check the description of the blank space that is not clearly shown in the diagram in the remarks column, and check whether the "to be determined" problem is complete and clear. 2.2.2 According to the provisions of the auxiliary material and public material flow chart, check the auxiliary material and public material pipeline instrument flow chart for each single medium, check whether the channel, valve, and pipe protection parts (excluding those shown in the process flow chart) are correct and omissions. Check whether the pipe limit library is the same as the actual piping. 2.2.23 Check the auxiliary materials and utility materials pipeline instrument flow diagrams for each single medium system and check whether there are errors and omissions (excluding those indicated in the process pipeline instrument flow diagram). 2.2.24 Check whether there are errors and omissions in each single medium system selection point (excluding those indicated in the process pipeline instrument flow diagram). 2.2.25 Check the inlet and outlet areas of the auxiliary materials and utility materials pipeline instrument flow diagrams according to the provisions of 2.2.17. 2.2.26 Check whether there are errors and omissions in the insulation (trailing pipes, clamping pipes, etc.) in the auxiliary materials and utility materials pipelines.
2.2.27 Check the auxiliary material and public material pipeline instrumentation diagram for errors and omissions in the boundary position of the pipeline grade change: Check the general channel flow direction and connection diagram pipeline arrangement and diagram for errors and omissions. 2.2.28 According to the provisions of 2.2.13, check the drains in the auxiliary material and public material pipeline instrumentation diagram. 2.2.29 According to the determination of 2.2.12, check the safety valves in the auxiliary material and public material pipeline instrumentation diagram. 2.2.30 Whether the flash drive equipment such as compressors, compressors, etc. (additional: electric efficiency machines, steam turbines, diesel engines, gas turbines, etc.) when the numbers are expressed have been expressed: 55
2.2.31 Check the process flow chart of the process operation pipeline instrument flow chart, auxiliary materials, and public material pipeline instrument flow chart to see whether the considerations and facilities for starting, stopping, normal operation, accident handling, maintenance and personal safety are complete and reliable. 2.2.32 Main contents of the audit
2.2.32.1. Based on the calculation results of the calibrated stack, the pressure drop and safety distribution of the nuclear system 2.2.32.2 Safety analysis of the three waste emissions of the nuclear and process system professionals. 2.2.32.3 Confidentiality of the expenses related to the nuclear and process system professionals. 2.2.32.4 Review the F1 diagram 2.3 Pipe naming table and reference
2.3.! This table can be published after abbreviating and checking. 2.3.2 Check whether the pipeline number, pipeline purpose and the number of the pipeline number in the "Pipeline Naming Index" are consistent with the contents compiled in the pipeline naming table. 2.4 Pipe naming table
2.4.1 "Pipeline naming table" (hereinafter referred to as the naming table) is a simplified version that is checked and reviewed after compilation. 2.4.2 The checker shall check the pipeline number, size, pressure level, fluid medium, from, to, pipe specifications, pipeline instrument flow chart number in the back of this table according to the fluid medium on the basis of the inspection conditions. The normal operation conditions column is > salinity, positive kidney (working) pressure, accident Or short-term changes in temperature, pressure, accident type, allowable overload; check the material type, temperature, pressure in the design condition column; check the price in the on-site test, check the insulation type, insulation thickness, coating requirements, and other items in the remarks column for errors and avoidance. 2.4.3 Auditors 1 must review the design conditions and working conditions for on-site pressure test columns for errors. 2.5 Noise control design regulations || tt || This regulation should be prepared according to the "Noise Control Design Regulations" of the process system professional (at the beginning of the design of the thermal insulation project, according to the commencement report, and the documents provided by the environmental protection professional are published by the process system professionals) when needed. After verification by the reviewers, it shall be reviewed by the director of the department or the chief engineer. And approved and signed by the design manager 57
7.6 Vessel connection summary table
2.6.1 The "Container connection summary table" shall be compiled and reviewed in accordance with the "Container connection summary preparation instructions" and can be published.
2.6.2 Based on the inspection of the acceptance documents, the review personnel shall review the equipment name, container location, container type, minimum design pressure, etc., container connection load, purpose, connection type, nominal diameter, flange face type and type of pipe connected to the vessel connection in the container connection summary table, as well as the professional requirements of the process system stated in the notes for errors or omissions. 2.6.3 When reviewing the nominal diameter of the container connection in this table, the pipeline hydraulic calculation that determines the nominal connection price shall be reviewed.
2. Summary of heat exchanger connections
2.7.1 “Summary of heat exchanger connections” can be published after compilation and verification according to “Summary of heat exchanger connection”.
2.7.2 The checker shall check the equipment name, equipment position, type, design pressure of the tube and shell, pipe diameter and shell side pipe letter symbol in the heat exchanger pipe data column on the basis of checking the acceptance conditions, purpose, pipe type, nominal diameter, pressure level, flange surface type, and process system professional requirements in the notes to see if there are any errors or insufficiencies. 2.7.3 When the operation of the heat exchanger is related to the case, the compiler shall fill in the data provided by the process in the maximum operation column, and fill in the value of the closing pressure at the same time, and the checker shall check if there are any errors. 2.4 While checking the nominal diameter of the quick-heater pipe, the water calculation of the pipe that determines the nominal diameter of the pipe shall be checked
2.8. Summary of special equipment pipe connection documents|| tt||The calibration details of the “Special Equipment Takeover Summary Table” can be carried out in accordance with the provisions of 2.2.4 Industrial Furnace Takeover Summary Table
2.9.1 The calibration details of the “Industrial Furnace Takeover Summary Table” can be carried out in accordance with the provisions of 2.6. 55
2.92 In the industrial furnace takeover column of the “Industrial Furnace Takeover Summary Table”, regarding the pressure level item, the checker should recheck it carefully: for example, the design temperature is too high, and when adding lining and improving the material grade are not considered, whether the considered pressure level can meet the certain design requirements.
In the calibration of the above equipment takeover summary table, when the selected equipment is a standardized product, the control personnel may not write the takeover conditions according to the specific situation, but provide necessary explanations in the takeover summary table. 2.10 Equipment Insulation Case Summary Table|| tt||2.10.1 The "Summary Table of Equipment Thermal Insulation Conditions" is prepared in accordance with the "Summary Table of Equipment Thermal Insulation Conditions" and can be published after verification.
2.10.2 Based on the inspection of the acceptance conditions, the verification personnel shall verify the equipment number, equipment name, positive pressure and positive temperature of the thermal insulation in the "Summary Table of Equipment Thermal Insulation Conditions", and the insulation type and insulation conditions of the installation environment and the insulation position in the remarks. If there are any omissions or omissions, the personnel shall also verify whether the design pressure and design temperature in the working conditions, the diameter of the accompanying pipe (or jacket), the thickness of the thermal insulation and other items are correct. 2.10.4 When necessary, the verification personnel shall review this table based on the verification of the inspection personnel. 2 .11 Steam and condensate condition table
2.11.1 Prepare according to the instructions in the table, and publish after the table is sent out for inspection and approval. 2.11.2 The reviewer is responsible for checking the equipment price number, equipment name, steam selection, heating method, composition of the heating medium, normal specific pressure and inlet and outlet temperature of the steam balance and *steam and condensate parts on the basis of checking the acceptance conditions. The normal steam flow, normal steam inlet pressure and normal inlet temperature, use nature and the contents that need to be specially explained in the storage are correct: 2.11.3 The editor shall fill in the highest pressure of the heating medium, the minimum steam flow, the lowest steam daily pressure and low inlet temperature, the use time, and the annual working hours under the possible circumstances, and the verification personnel shall verify it.
2.11.4 The reviewer shall review the items in the original change on the basis of the verification of the reviewer. The main nuclear steam monthly teaching is small power.
2.11.5 The checker shall check the steam balance diagram and the "Steam and Condensate Equipment Table" to see if there are any errors in the steam condensate equipment position number, name, number of running and standby units, steam cooling water return pressure and return water salinity, and delivery method. 59
2.11.6 The compiler shall write the normal, maximum, minimum flow rate, and water quality of steam condensate as much as possible based on the acceptance conditions. Note whether it is recycled or intermittent. The check personnel shall check whether the flow rate, pressure and temperature in the "Steam and Condensate Conditions Table" are correct.
2.12 Water Use and Drainage Case Table
2.12.1 The relevant items in this table can be compiled and checked according to the requirements of the notes of the table: they will be published after review.
2.2.2. Based on the inspection and acceptance conditions, the calibration personnel shall check the water-using equipment name, water purpose, average and maximum water consumption, and water temperature in the water quality requirements column of the "Ground Water Conditions Table"; check the water pressure of the water outlet, the degree of continuity, the position and elevation of the water inlet, etc.; check the name of the drainage equipment, average drainage, whether the water quality is polluted, the sewage temperature, drainage residual pressure, whether it is continuous or intermittent, and whether the drainage outlet position and elevation are correct.
2.12.3 The compiler shall, on the basis of receiving the tea, write down the water requirements as much as possible (the water's purity and physical composition), which shall be controlled by the calibration personnel.
2.12.4 The verification personnel shall, on the basis of the verification of the calibration personnel, verify the technical requirements in the "Water Use and Drainage Conditions Table".
2.13 Soft Water and Desalted Water Conditions
2.13.1 This table can be published after being compiled, calibrated and reviewed. 2.13.2 The calibration personnel shall, on the basis of checking the acceptance conditions, verify whether there are any errors in the workshop or section name, route, class, belt, workshop door water pressure, water temperature, etc. 2.13.3 The compiler shall, on the basis of collecting the acceptance conditions, fill in the water quality requirements column as much as possible. Hardness, magnetic resistance, conductivity, etc. Special requirements for water quality should be stated in the remarks column and checked by the light verification personnel. 2.13.4 When checking, the verification personnel should pay attention to whether the changes that occur when the water supply is interrupted (such as accidents or production reductions) have been explained in the remarks.
2.13.5 The verification personnel shall verify the technical issues in the "Soft Water and De-disk Water Condition Table" based on the verification of the verification personnel.
2.14 Boundary Zone Condition Table
2.14.1 This table is compiled in accordance with the "Boundary Zone Condition Table Preparation Instructions" and can be published after verification and review. 2.14.2 The verification personnel shall verify the process data and pipe connection equipment of all the upper and lower sections (within the scope of professional responsibilities) entering and leaving the boundary zone, and verify the entry Check whether the basic pipeline numbers, pipe sizes, fluid media, pipeline directions and flow, specific gravity (liquid), distribution volume (gas) temperature and the station temperature, pressure and transportation characteristics of all the above-ground and underground pipes in the boundary area are correct. 2.14.3 While checking the boundary pipe sizes in this table, the verifier must also check the requirements for determining the pipe sizes.
2.14,4 The reviewer shall check the technical problems in the "Boundary Area Connection Conditions Table\ on the basis of the review by the reviewer.
2.15 Compressor Parts Table
2.15.1 This table is compiled according to the compressor parts table preparation instructions\reverse compilation and can be published after verification and review. 2.15.2 The reviewer shall check the acceptance conditions. On the basis of the above, the verification work is composed of the following: whether the pressure of the compressor, the compressor inlet and outlet pressure, and the temperature of the compressor are correct: 2.15.3 Verify whether the design temperature, design pressure, safety valve setting pressure, pipe flange pressure level and flange connection surface type of the compressor suction pipe in the mechanical design conditions of the conveyor suction and discharge pipeline are correct. 2.15.4 Verify whether the design pressure of the inlet and outlet water, the safety valve setting pressure of the inlet and outlet water, the allowable pressure drop AP of the cooler, the design temperature of the inlet and outlet water, and the water temperature difference of the cooler inlet and outlet are correct.
2.15.5 Based on the verification of the control personnel, the auditor shall verify the key issues in the terminal conditions.
2. 1 Calculation table
, 16, 1 This table is compiled according to the relevant design provisions in the "System Characteristics Calculation and Determination of the Relative Installation Height of the Equipment Ticket", and can be published after verification and review. 2.16.2 The checker shall check whether there are any errors or omissions in the pump suction and discharge conditions, as well as the NPSH calculation, control valve and other columns in the "Pump Calculation Table" on the basis of checking the acceptance conditions.
2.163 The checker shall check whether the pump data columns in the "Injection Calculation Table" such as pump position, standby pump position number, flow safety factor, viscosity, specific gravity, temperature, flow rate, normal flow rate, design flow point, and design pressure of the pump; check whether the pump suction and discharge pressure, effective NPSH, maximum suction pressure, suction and discharge pressure, pipeline pressure and other data of the pump under the design capacity, as well as the flange surface and other items are consistent with the calculation results in the "Injection Calculation Table" and whether they are leaking: 2.16.4 Check The staff shall check whether the maximum working temperature, maximum suction pressure and maximum closing pressure in the column are correct.
2.16.5 For NPSH and pressure difference, the auditor shall comprehensively check and calculate the pump data. 2.1 Pump Data Summary Sheet
2.17.1 This sheet is prepared in accordance with the "Pump Data Summary Sheet Preparation Instructions" and can be published after verification. 2.17.2 The auditor shall check whether the normal flow rate and design flow rate of each summer in the "Summary of Pump Data", the suction and discharge pressure of each summer under the design capacity, the effective NPSI, the maximum suction pressure, the suction and discharge pipes, the pipe type and the flange pressure level, and the flange type are consistent with the data listed in the "Calculation".
2.1% Equipment elevation and net positive suction pressure (NPS) table 2.18.1 This table is prepared according to the "Instructions for the preparation of equipment elevation and pump net positive suction pressure head (NISH) table" and can be published after verification. bZxz.net
2.18.2 The verification personnel shall verify whether the P and elevation of the container or condenser, pump or expansion device in this table are energized according to the position, type, and step.
2.18.3 When the work is carried out to a certain stage, if the equipment elevation is significantly changed, After receiving the opinions of the equipment and other related professional companies, the equipment layout professionals shall revise the equipment elevations of the E version (detailed version 1 or research version) of the city and drawing. The professional designers of the process system shall recalculate the NPSH and have it verified by the verification personnel for errors. 2.18.4 The verification personnel shall also check whether the final effective NPSI and the final required N5/ are correct. 2.19 Replacement wall thickness data
2.191 The table is compiled according to the "Comprehensive Description of Pipe Wall Thickness Data Rate" and can be published after verification. 2.19.7 The verification personnel shall verify the basic pipeline number, nominal diameter, category and pipeline description in the process system column of this table4 Check whether the design pressure of the inlet and outlet of the cooling water system, the set pressure of the safety valve of the inlet and outlet, the allowable pressure drop AP of the cooler, the design temperature of the inlet and outlet, and the temperature difference of the water in the inlet and outlet of the cooler are correct.
2.15.5 The auditor shall check the key issues in the terminal conditions on the basis of the verification of the control personnel.
2.1 Calculation table
, 16, 1 This table is compiled according to the relevant design regulations in the "System Characteristics Calculation and Determination of the Relative Installation Height of the Equipment Ticket", and can be published after verification and review. 2.16.2 On the basis of checking the acceptance conditions, the auditor shall check whether there are any errors and omissions in the pump suction and discharge conditions, as well as the NPSH calculation, control valve and other columns in the "Pump Calculation Table", according to the explanation of the pump calculation.
2.163 The auditor shall check the pump data column in the "Poisoning Calculation Table" Check the pump position, standby pump position, flow safety factor, viscosity, specific gravity, temperature, flow rate, normal flow rate, design flow point, design pressure of the pump; check whether the suction and discharge pressure, effective NPSH, maximum suction pressure, suction and discharge pressure, pipeline pressure and other factors of the pump under the design capacity, as well as the flange surface, etc. are consistent with the calculation results in the "rate calculation table" and whether they are leaking: 2.16.4 The checker is to check whether the maximum working temperature, maximum suction pressure, and maximum closing pressure in the relationship column are correct.
2.16.5 For NPSH and pressure difference, the reviewer shall comprehensively review the calculation. 2.17.1 This table is compiled in accordance with the "Pump Data Summary Table Preparation Instructions" and can be published after verification. 2.17.2 The checker shall check whether the normal flow rate and design flow rate of each item in the “Summary of Data”, the suction and discharge pressure of the object under the designed capacity (under the design flow rate), the effective NPSI, the maximum suction pressure, the suction and discharge pipes, the pipe types and the flange pressure level, and the natural gas type are consistent with the data listed in the “Invoice Calculation”.
2.1% Equipment elevation and object net positive suction pressure (NPS) table 2.18.1 This table is prepared in accordance with the “Instructions for Preparation of Equipment Elevation and Pump Net Positive Suction Head (NISH) Table” and can be published after verification.
2.18.2 The checker shall check whether the position, type, P and elevation of the container or condenser, pump or compressor in this table are correct.
2.18.3 When the work reaches a certain stage, if the design elevation is significantly changed, after receiving the opinions of the equipment and other related professionals, the equipment layout professionals shall revise the equipment elevation of the E version (detailed version 1 or research version) of the city and drawing, and the professional designers of the process system shall recalculate the NPSH and have it revised by the verifier to see if there are any errors. 2.18.4 The verifier shall also check whether the final effective NPSI and the final required N5/ are correct. 2.19 Replacement wall thickness data
2.191 The table is compiled according to the "Comprehensive Description of Pipe Wall Thickness Data" and can be published after verification. 2.19.7 The calibrator verifies the basic pipeline number, nominal diameter, category and pipeline description in the process system column of this table4 Check whether the design pressure of the inlet and outlet water in the cooling water system, the set pressure of the safety valve of the inlet and outlet water, the allowable pressure drop AP of the cooler, the design temperature of the inlet and outlet water, and the temperature difference of the water in the inlet and outlet of the cooler are correct.
2.15.5 The auditor shall check the key issues in the terminal conditions on the basis of the verification of the control personnel.
2.1 Calculation table
, 16, 1 This table is compiled according to the relevant design regulations in the "System Characteristics Calculation and Determination of the Relative Installation Height of the Equipment Ticket", and can be published after verification and review. 2.16.2 On the basis of checking the acceptance conditions, the auditor shall check whether there are any errors and omissions in the pump suction and discharge conditions, as well as the NPSH calculation, control valve and other columns in the "Pump Calculation Table", according to the explanation of the pump calculation.
2.163 The auditor shall check the pump data column in the "Poisoning Calculation Table" Check the pump position, standby pump position, flow safety factor, viscosity, specific gravity, temperature, flow rate, normal flow rate, design flow point, design pressure of the pump; check whether the suction and discharge pressure, effective NPSH, maximum suction pressure, suction and discharge pressure, pipeline pressure and other factors of the pump under the design capacity, as well as the flange surface, etc. are consistent with the calculation results in the "rate calculation table" and whether they are leaking: 2.16.4 The checker is to check whether the maximum working temperature, maximum suction pressure, and maximum closing pressure in the relationship column are correct.
2.16.5 For NPSH and pressure difference, the reviewer shall comprehensively review the calculation. 2.17.1 This table is compiled in accordance with the "Pump Data Summary Table Preparation Instructions" and can be published after verification. 2.17.2 The checker shall check whether the normal flow rate and design flow rate of each item in the “Summary of Data”, the suction and discharge pressure of the object under the designed capacity (under the design flow rate), the effective NPSI, the maximum suction pressure, the suction and discharge pipes, the pipe types and the flange pressure level, and the natural gas type are consistent with the data listed in the “Invoice Calculation”.
2.1% Equipment elevation and object net positive suction pressure (NPS) table 2.18.1 This table is prepared in accordance with the “Instructions for Preparation of Equipment Elevation and Pump Net Positive Suction Head (NISH) Table” and can be published after verification.
2.18.2 The checker shall check whether the position, type, P and elevation of the container or condenser, pump or compressor in this table are correct.
2.18.3 When the work reaches a certain stage, if the design elevation is significantly changed, after receiving the opinions of the equipment and other related professionals, the equipment layout professionals shall revise the equipment elevation of the E version (detailed version 1 or research version) of the city and drawing, and the professional designers of the process system shall recalculate the NPSH and have it revised by the verifier to see if there are any errors. 2.18.4 The verifier shall also check whether the final effective NPSI and the final required N5/ are correct. 2.19 Replacement wall thickness data
2.191 The table is compiled according to the "Comprehensive Description of Pipe Wall Thickness Data" and can be published after verification. 2.19.7 The calibrator verifies the basic pipeline number, nominal diameter, category and pipeline description in the process system column of this table
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