Pearlife filling system and filling method thereof

Abstract

The invention discloses a pearlife filling system and a filling method thereof. The pearlife filling system comprises a vacuuming device, a dehydration tank, a heater, a dehydrator and an air supply device, wherein the air outlet of the air supply device is connected with the air inlet of the dehydrator through a pipeline; the air outlet of the dehydrator is connected with the air inlet of the heater through a pipeline; the air outlet of the heater is connected with the air inlet in the lower part of the dehydration tank through a pipeline; a sand outlet in the bottom of the dehydration tank is connected with the sand inlet of a low-temperature container to be filled through a pipeline; the vacuuming hole of the low-temperature container to be filled is connected with the vacuuming devicethrough a pipeline; a depressurizing valve is arranged on the pipeline between the dehydrator and the heater; a first valve and a second valve are respectively arranged at both ends of the depressurizing valve; an air outlet is formed in the upper part of the dehydration tank. The pearlife filling system is capable of solving the problem that pearlife is liable to be affected with damp when beingput into a conventional low-pressure container, is high in filling efficiency, good in filling effect, not easy to be affected with damp, simple in structure, convenient to operate and low in manufacturing and use cost.

Description

technical field [0001] The invention belongs to the technical field of pearlescent sand filling, in particular to a pearlescent sand filling system and a filling method thereof. Background technique [0002] Cryogenic vessels refer to pressure vessels whose wall temperature is below -20°C during operation. Storage and transportation containers for liquefied ethylene, liquefied natural gas, liquid nitrogen, and liquid hydrogen are all low-temperature pressure vessels. The application range of low-temperature containers is becoming wider and wider, and the specifications and models are constantly updated. At present, there are problems such as low efficiency of pearlite sand filling in cryogenic containers, large leakage of pearlite sand during the filling process, and environmental pollution. At present, there are two kinds of pearlite sand filling methods. [0003] The first method is to directly fill the bagged pearlite into the interlayer of the low-temperature container...

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Problems solved by technology

[0005] In view of the technical problems existing in the background technology, the present invention provides a pearlite sand filling system and its filling method. The present invention overcomes the problem that the traditional low-pressure container filled pearlite sand is prone to moisture, has high filling efficiency, good filling effect and is not easy to be damp. ;Simple structure, convenient operation, low manufacturing cost

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