Technical Requirements for Liquefied Petroleum Gas Cylinder Filling Station Safety
This standard is applicable to all liquefied petroleum gas (LPG) cylinder filling stations (hereinafter referred to as stations) for the construction, equipment, operation and management, which is formulated to ensure the safety of personnel and property and reduce the risk of gas use accidents.
1. General Provisions
1.1 The application scope of this standard covers the design and construction of all LPG cylinder filling stations, including the safety devices and safety requirements for the equipment of all sub-stations such as compressors, storage tanks and their accessories, as well as for operations.
1.2 The design, construction and operation of LPG cylinder filling stations shall meet the requirements of this standard and relevant standards of GB/T and other organizations.
2.Site Selection
2.1 The selection of the site of the filling station shall take into account the safety and convenience in transportation. Special attention shall be paid to water, light gas and electricity facilities. The following items should be considered during the selection:
(1) road traffic situation;
(2)distance to residential areas, schools, hospitals and other places where densely populated by the public;
(3)distance to fire stations and especially military air defense facilities;
(4)distance to the gas source station;
(5)the terrain elevation and geological conditions of the station;
(6)the prevailing wind direction of the station and the air quality of the surrounding area;
(7)the flammability of surrounding objects and the potential risk of fire spread;
(8)the speed of river flow, the location of high and low water levels, etc.
3.Construction
3.1 Basic Requirements
The construction of LPG cylinder filling station shall be designed and constructed according to the shaped scene, and in accordance with the approved plan and the requirements of the relevant standards and norms. The area of the station shall not be too small; the number of tanks installed shall not exceed 10; the total gas volume shall not exceed 8.0×104m3, and the pressure of the equipment shall not exceed 5.2MPa.
3.2 Location and Space
3.2.1 Consideration shall be given to the prevention of sunlight and the direction of prevailing wind.
3.2.2 The distance between the equipment and flammable objects shall not be less than 15 m; the distance between the two flammable objects shall not be less than 10 m; the distance between two gas cylinder filling positions shall not be less than 10 m; the distance between gas cylinders and gas cylinders shall not be less than 30 cm.
3.2.3 There must be sufficient maintenance space for equipment and equipment operations and for emergency vehicles to pass.
3.2.4 A control system or emergency emergency control center should be set up to prevent emergencies.
3.3 The structure of the station.
The station shall be equipped with a complete set of monitoring and control equipment and safety protection devices on the station. The gas-oil separator and filter should be cleaned regularly to keep the internal piping clean.
3.4 Connections to Common Facilities
The station shall be connected with the common power supply and fire fighting facilities, and a safety warning system should also be set up.
4.Equipment Installation
4.1 Equipment installers should have the relevant installation qualifications, and the installation should be carried out strictly in accordance with this standard to ensure the installation qualifications.
4.2 The manufacturers should provide training and safety technical documents to the operators.
4.3 Before installation, a test of the equipment shall be carried out in the presence of a qualified inspector to ensure that the equipment meets the requirements of the explosion protection regulations. The installation of the equipment shall be in strict accordance with the requirements of the drawings and operating manuals.
4.4 In order to ensure the safety, the original capacity and pressure testing of the facilities shall be carried out before installation.
4.5 The inlet and outlet valves of the equipment shall be provided with reliable safety protection devices.
4.6 The installation of electronic ignition units shall meet the requirements of relevant standards.
4.7 The equipment and pipelines and the common facilities of the station shall be connected by conduit and insulated device, and the connection and insulation insulation shall meet the requirements of the relevant regulations.
5.Operation
5.1 Operators should be provided with the necessary training, and operators should be familiar with the relevant regulations and safety requirements.
5.2 A qualified supervisor should be arranged at the station while filling gas cylinders, and there should be no tankers in the station.
5.3 The station should establish operating procedures and implement safe operating procedures in the event of an accident.
5.4 The inlet and outlet valves of the equipment and system shall be regularly inspected and checked, and the maintenance and testing records shall be kept.
5.5 No smoking is allowed in the station, and the explosion-proof electric equipment and lamps shall be set up in the working area.
5.6 The station should arrange the staff on duty 24 hours a day and the contact person shall be on duty.
5.7 Observe safety during the operation, normal shutdown, and tank filling and unloading.
6.Regular inspections
The station shall check, maintain and maintain the safety protection and test facilities according to the requirements of this standard; the pressure gauges and external piping shall be inspected twice a year to ensure that they are in good condition; the pressure piping and weld, down pipe, and ventilation pipe system shall be inspected once every three years, and cleaning or repairs shall be made as necessary. The supervisor of the station shall be responsible for carrying out the safety inspection of the station and record the inspection.
7.Emergency Response
7.1 In case of emergencies such as fire and leaks, the staff in the company shall take immediate measures to evacuate or rescue.
7.2 When an accident occurs, it shall be reported to the fire department in accordance with the regulations, and the local public security fire brigade shall be contacted to investigate and deal with the accident.
7.3 The staff in the station should be trained on the basics of fire fighting and first aid.
8.Safety Regulations
8.1 The station shall set up a safety self-inspection mechanism and implement a fire self-check system.
8.2 The station shall adopt a timely maintenance system to ensure the proper operation of equipment.
8.3 For the specific regulations of the station, the company shall formulate corresponding safety regulations according to the actual situation of the station to ensure the safety of personnel and property.
Conclusion
Liquefied petroleum gas cylinder filling station safety requirements, from site selection to the installation of equipment have strict rules, in the actual design and operation, must be fully research and study, in order to ensure the safety of personnel and property and reduce the risk of gas use accidents.
