GB/T 16507.7-2022 in English

《GB/T 16507.7-2022水管锅炉 第7部分：安全附件和仪表》由TC262（全国锅炉压力容器标准化技术委员会）归口，TC262SC1（全国锅炉压力容器标准化技术委员会锅炉分会）执行，主管部门为国家标准化管理委员会。

Water-tube boilers - Part 7: Safety appurtenances and instruments

1 Scope

This document specifies the requirements for the setting and selection of safety appurtenances and instruments of water-tube boilers, including safety valves; pressure measuring devices; water (liquid) level measuring, indication and control devices; temperature measuring devices; sewage and water discharge devices and protection devices.

This document is applicable to the safety appurtenances and instruments selected for water-tube boilers as defined in GB/T 16507.1.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.

GB/T 1239.2 Cold coiled helical springs technical specifications - Part 2: Compressions spring
GB/T 12228 General purpose industrial valves - Specification of carbon steel forgings
GB/T 12229 General purpose industrial valves - Specification of carbon steel castings
GB/T 12230 General purpose industrial valves - Specification of stainless steel castings
GB/T 12241 Safety valves - General requirements
GB/T 12242 Pressure relief devices - Performance test code
GB/T 16507.1 Water-tube boilers - Part 1: General requirement
GB/T 16507.2 Water-tube boilers - Part 2: Materials
GB/T 16507.4 Water-tube boilers - Part 4: Strength calculation of pressure parts
GB/T 20438 (all parts) Functional safety of electrical/electronic/programmable electronic safety-related systems
GB/T 21109 (all parts) Functional safety - Safety instrumented systems for the process industry sector
GB/T 23934 Hot coiled helical compression springs - Technical specifications
GB 50116 Code for design of automatic fire alarm system
GB 50229 Standard for design of fire protection for fossil fuel power plants and substations
DL/T 5428 Technical code for design of I&C protection system in fossil fuel power plant
NB/T 47063 Safety valves for power station

3 Terms and definitions

For the purposes of this document, the terms and definitions given in GB/T 16507.1 and the following apply.

3.1
instrument
device for measuring alone or together with other equipment

3.2
quencher
equipment for cooling the slag in the bottom of circulating fluidized bed boilers using air or water

3.3
bed temperature
temperature of gas-solid two-phase flow in the dense-phase zone of circulating fluidized bed boiler

3.4
bed pressure
pressure difference obtained by subtracting the resistance of the air distributor from the pressure difference between the lower air chamber of the air distributor and the furnace outlet of the circulating fluidized bed boiler

Foreword i
Introduction iv
1 Scope
2 Normative references
3 Terms and definitions
4 Basic requirements
5 Safety valve
6 Pressure measuring device
7 Water level measuring, indication and control device
8 Temperature measuring device
9 Sewage and water discharge device
10 Alarm and protection devices
11 Other appurtenances
Bibliography