GB/T 9109.2-2014Dynamic measurement of petroleum and liquid petroleum products—Part 2: Technical requirements of meter installation (English PDF)

Foreword

GB/T 9109 is divided into four parts.

--- GB/T 9109.1 Dynamic measurement of crude oil general principles;

--- GB/T 9109.2 Oil and dynamic measurement of liquid petroleum products - Part 2. flowmeter installation technical requirements;

--- GB/T 9109.3 dynamic measurement of oil and liquid petroleum products - Part 3: Volume tube mounting technical requirements;

--- GB/T 9109.5 Petroleum and liquid petroleum products - Calculation of oil dynamic measurement. This section GB/T 9109 Part 2: This section drafted in accordance with GB/T 1.1-2009 given rules.

This Part replaces GB/T 9109.2-1988 "Dynamic measurement of crude oil displacement meter installation technical requirements." This portion

GB/T 9109.2-1988 compared to the main changes in the technical content is as follows.

--- The standard name was changed to "dynamic measurement of oil and liquid petroleum products - Part 2. Install flowmeter technical requirements";

--- Modify the scope, increase in oil and liquid petroleum products;

--- Modify the standard structure, an increase in Chapter 3;

--- Increasing the technical requirements for the design and installation of turbine flow meters, Coriolis mass flow meters and ultrasonic flow meters and other measurement systems.

1 Scope

This section GB/T 9109 provisions of the Petroleum and liquid petroleum products - Dynamic measurement meter systems design and installation techniques Claim.

This section applies to goods of petroleum and liquid petroleum products meter systems design and installation, non-commercial oil and liquid petroleum products Product meter systems design and installation can use the reference.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 4756 petroleum liquids hand sampling method

GB/T 9109.1 Dynamic measurement of crude oil general principles

GB/T 17746 Petroleum liquids and gases dynamic measuring electric and (or) electronic pulse fidelity and reliability of data transmission cables

SY/T 5317 petroleum liquids pipeline automatic sampling

SY/T 6682 liquid hydrocarbon flow measurement with Coriolis flowmeters

3 General requirements

3.1 Construction principle flowmeter for custody transfer measurement metering station shall comply with GB/T 9109.1.

3.2 meter level of accuracy for custody transfer measurement shall not be less than 0.2.

3.3 meter systems design, installation should meet the following requirements.

a) easy access, observation and operation, providing a dedicated platform and ladder, if necessary;

b) avoid the heat, place strong vibration;

c) avoid electrostatic interference, electromagnetic interference and noise, when can not be avoided, it should take appropriate static interference, electromagnetic interference and noise Measures sound interference;

D) When a non-waterproof meter located outdoors, the instrument should be installed in a protective case;

e) non-Ex instrument when used in explosion risk areas, should be installed in the positive pressure meter cabinet or take other measures to explosion, and comply with the relevant Explosion-proof specifications.

Design pressure of 3.4 meter and auxiliary equipment shall not be less than the maximum working pressure metering system design temperature should not be lower than the measured oil Maximum temperature.

3.5 flowmeter system design, installation, insulation should be taken on the instrument and process oil pipeline based on the measured physical and environmental characteristics, Anti-corrosion and anti-vibration measures.

4 System Design