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Heptafluoropropane recycling system

A technology of heptafluoropropane and recovery system, which is applied in liquefaction, solidification, lighting and heating equipment, etc., can solve environmental pollution and other problems, and achieve the effects of high recovery rate, low gas phase pressure and compact structure

Inactive Publication Date: 2014-03-26
SHANGHAI LEINUO SECURITY TECH CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As for how to separate, no one has set foot in the country at present, and it can only be discharged into the atmosphere, which will pollute the environment.

Method used

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  • Heptafluoropropane recycling system

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Embodiment Construction

[0016] The present invention will be further described below according to the accompanying drawings.

[0017] Such as figure 1 As shown, the heat exchanger 3 is composed of inner and outer concentric coils, the inner coil is connected to the dryer 1, and the outer coil is connected to the condenser 9; the outer side of the heat exchanger 3 is provided with a low-temperature gas-liquid separator 4, and The inner and outer coils of the heat exchanger 3 are closely attached to the inner wall of the low-temperature gas-liquid separator 4; The outside of the separator 4; the low temperature gas-liquid separator 4 is provided with a liquid level controller 5, and the signal end of the liquid level controller 5 is connected to the solenoid valve 7.

[0018] The outside of the pre-cooler 2 is provided with a thermal insulation outer cylinder 6, and the thermal insulation outer cylinder 6 is an airtight thermal insulation container.

[0019] An expansion valve 8 is provided between t...

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Abstract

The invention relates to the technical field of heptafluoropropane, in particular to a heptafluoropropane recycling system. The heptafluoropropane recycling system comprises a dryer, a pre-cooler, a pre-heater, a low-temperature gas-liquid separator, a liquid level controller, a heat preservation outer barrel, an electromagnetic valve, an expansion valve, a condenser and a compressor. Compared with the prior art, due to the physical properties that heptafluoropropane is low in gas phase pressure and liquescent under low-temperature conditions and the low-temperature separation technology, nitrogen is discharged, liquid heptafluoropropane is recycled, processes are simple, the structure is compact, the recycling rate can reach more than 95%, and automatic recycling control is achieved.

Description

technical field [0001] The invention relates to the technical field of heptafluoropropane, in particular to a recovery system for heptafluoropropane. Background technique [0002] In the fire-fighting system, the storage-type heptafluoropropane fire extinguishing system relies on the pressurized nitrogen stored inside to press out the heptafluoropropane. In the secondary filling of heptafluoropropane, there must be a certain amount of mixed gas of heptafluoropropane and nitrogen. How to release this The recovery of heptafluoropropane in the mixed gas is very important for environmental protection and saving raw materials. As for how to separate, no one has set foot in the country at present, and it can only be discharged into the atmosphere, which will pollute the environment. Contents of the invention [0003] In order to overcome the deficiencies in the prior art, the present invention adopts the physical properties of low gas phase pressure and easy liquefaction of hep...

Claims

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Application Information

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IPC IPC(8): F25J1/02
Inventor 杨高峰
Owner SHANGHAI LEINUO SECURITY TECH CO
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