Hydrocarbon refrigerant with intrinsic safety

Abstract

The invention discloses a hydrocarbon refrigerant with intrinsic safety. The hydrocarbon refrigerant is characterized by comprising a low carbon alkane refrigerant and 1%-5% of an explosion suppressant (according to the total mass of the low carbon alkane refrigerant), wherein the low carbon alkane refrigerant (by mass%) is formed by mixing of 60%-100% of propane and 0%-40% of isobutane, the explosion suppressant accounts for 1-5% (according to the total mass of the low carbon alkane refrigerant), and the explosion suppressant (according to the mass% of the explosion suppressant) is any one of or formed by mixing of more than one of tetramethyl lead, tetraethyl lead and pentacarbonyl iron in arbitrary proportion. The hydrocarbon refrigerant provided by the invention not only has high refrigeration efficiency, excellent environmental protection performance, but also has reliable essential safety, effectively eradicates the possibility of hydrocarbon refrigerant explosion, and is applicable to air conditioners, refrigerators and freezers and other refrigeration equipment.

Description

technical field [0001] The invention relates to a hydrocarbon refrigerant with intrinsic safety. Background technique [0002] Hydrocarbon refrigerants are promising refrigerants. But its explosiveness has become the biggest resistance to its large-scale promotion and application. [0003] There are currently two main aspects to improve the safety of hydrocarbon refrigerants: [0004] (1) Adding a warning odorant to the system makes it easy for people to detect the leakage of the refrigerant and play the role of a warning or alarm, such as CN200910214514, CN200480038014, CN200680042084, CN200810094429, CN200480033507, CN201010154844, CN2006220887.2929 But it is only to remind users to pay attention, and it does not essentially eliminate the possibility of explosion. [0005] (2) Add non-explosive refrigerant in the system to reduce the content of hydrocarbon refrigerant, thereby reducing the possibility of explosion, such as CN200710036014, CN200710056679, CN91108302 adop...

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Problems solved by technology

[0006] 如CN201210064427、CN200710068821、CN201010205315、CN201010141092、CN201010128616、CN200910018489、CN200910102217、CN200910260825、CN200810115669、CN200810094555、CN200810097393、CN200810231911、CN02126637、CN200710304784采用含氟卤代烷制冷剂作为添加物,但含氟卤代烷用量大,成本高,且破坏 The ozone layer or the greenhouse effect are severe

[0007] Strictly speaking, the mixed system containing a large amount of inert substances is not a hydrocarbon refrigerant. Due to the differences in properties such as density and volatility of the high content of the two components, the uniformity of the components during normal operation and leakage of the refrigeration system is poor, shortening the cycle time. The service life of the compressor and the local safety have also been questioned

[0008] Therefore, whether it is adding a warning smell or other types of non-explosive refrigerants, it is impossible to completely solve the safety problem of hydrocarbon refrigeration systems that are prone to explosion.

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