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Explosion protection system of refrigerating equipment adopting combustible refrigerant and safety design method
The invention belongs to the technical field of refrigerating equipment and particularly relates to an explosion protection system of refrigerating equipment adopting a combustible refrigerant and a safety design method. The explosion protection system comprises a negative pressure isolation exhaust system, an electrical junction box positive pressure explosion protection system and an active detection alarm system connected with an electrical control system separately. The refrigerating equipment body containing the combustible refrigerant is in the negative pressure environment; in the caseof leakage, the combustible refrigerant is discharged outdoors according to the assigned flow direction and a passage to rapidly reduce the concentration of the combustible refrigerant gas near the refrigerating equipment body; a non-explosion-proof testing instrument or a sensor stayed in an anti-explosion area is arranged in the positive pressure environment to effectively prevent the leaking combustible refrigerant from being in contact with an ignition source; and a plurality of monitoring points are arranged at the pipes possibly leaking of the refrigerating equipment body to actively monitor the concentration of the combustible refrigerant gas near the refrigerating equipment body in real time, and when the concentration is abnormal, sound-light alarm is timely sent out and a forcingexhaust system is started.
本发明属于制冷设备技术领域，尤其涉及一种采用可燃制冷剂的制冷设备的防爆系统和安全设计方法，其防爆系统包括分别与电气控制系统连接的负压隔离排风系统、电气接线箱正压防爆系统和主动探测报警系统。本发明中含有可燃制冷剂的制冷设备本体处于负压环境，发生泄漏时，可燃制冷剂按照指定流向和通道排出到室外，可迅速降低制冷设备本体附近可燃制冷剂气体的浓度；对存留在防爆区域内的非防爆的测试仪表或传感器设置为正压环境，可有效避免泄漏的可燃制冷剂与点火源接触；在制冷设备本体可能发生泄漏的管道处设置多个监测点，实时主动监测其附近可燃制冷剂气体浓度，当出现浓度异常及时发出声光报警并启动强制排风系统。
Explosion protection system of refrigerating equipment adopting combustible refrigerant and safety design method
The invention belongs to the technical field of refrigerating equipment and particularly relates to an explosion protection system of refrigerating equipment adopting a combustible refrigerant and a safety design method. The explosion protection system comprises a negative pressure isolation exhaust system, an electrical junction box positive pressure explosion protection system and an active detection alarm system connected with an electrical control system separately. The refrigerating equipment body containing the combustible refrigerant is in the negative pressure environment; in the caseof leakage, the combustible refrigerant is discharged outdoors according to the assigned flow direction and a passage to rapidly reduce the concentration of the combustible refrigerant gas near the refrigerating equipment body; a non-explosion-proof testing instrument or a sensor stayed in an anti-explosion area is arranged in the positive pressure environment to effectively prevent the leaking combustible refrigerant from being in contact with an ignition source; and a plurality of monitoring points are arranged at the pipes possibly leaking of the refrigerating equipment body to actively monitor the concentration of the combustible refrigerant gas near the refrigerating equipment body in real time, and when the concentration is abnormal, sound-light alarm is timely sent out and a forcingexhaust system is started.
本发明属于制冷设备技术领域，尤其涉及一种采用可燃制冷剂的制冷设备的防爆系统和安全设计方法，其防爆系统包括分别与电气控制系统连接的负压隔离排风系统、电气接线箱正压防爆系统和主动探测报警系统。本发明中含有可燃制冷剂的制冷设备本体处于负压环境，发生泄漏时，可燃制冷剂按照指定流向和通道排出到室外，可迅速降低制冷设备本体附近可燃制冷剂气体的浓度；对存留在防爆区域内的非防爆的测试仪表或传感器设置为正压环境，可有效避免泄漏的可燃制冷剂与点火源接触；在制冷设备本体可能发生泄漏的管道处设置多个监测点，实时主动监测其附近可燃制冷剂气体浓度，当出现浓度异常及时发出声光报警并启动强制排风系统。
Explosion protection system of refrigerating equipment adopting combustible refrigerant and safety design method
采用可燃制冷剂的制冷设备的防爆系统和安全设计方法
XIANG HANFENG (author)
2020-07-28
Patent
Electronic Resource
Chinese
IPC:
F25B
Kältemaschinen, Kälteanlagen oder Kälteverfahren
,
REFRIGERATION MACHINES, PLANTS, OR SYSTEMS
/
A62C
FIRE-FIGHTING
,
Feuerbekämpfung
/
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
/
E04H
Gebäude oder ähnliche Bauwerke für besondere Zwecke
,
BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES
/
G08B
SIGNALLING OR CALLING SYSTEMS
,
Signalisier- oder Rufsysteme
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