Low temperature liquid filling method for a tank car

A low-temperature liquid and tanker technology, which is applied to liquid distribution, transportation or transfer devices, packaging, distribution devices, etc., can solve the problems of reduced filling volume and increased cost of single-vehicle transportation.

Inactive Publication Date: 2004-06-16
ANYANG IRON & STEEL
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, since the density of low-temperature liquid decreases with the increase of saturation pressure, the higher the filling pressure, the lower the corresponding d...

Method used

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  • Low temperature liquid filling method for a tank car
  • Low temperature liquid filling method for a tank car

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Embodiment Construction

[0014] The liquid argon storage tank of the 14,000 oxygen generator has undergone low-pressure filling and tail gas recovery transformation, and the two ends of the recovery hose (4) are respectively connected to the exhaust valve (2) of the tail gas recovery storage tank (2) and the tank car (3). 6) communicate, connect the filling hose (5) on the cryogenic liquid storage tank (1) with the liquid inlet (7) of the tank car (3), start the pressurization device of the cryogenic liquid storage tank (1), make The vehicle filling pressure rises to 0.2-0.3Mpa, and the tank vehicle (3) is filled with liquid from the cryogenic liquid storage tank (1) through the filling hose (5). At the same time, the tanker exhaust gas recovered by the vent valve (6) of the tanker (3) through the recovery hose (4) and the exhaust gas recovery storage tank (2) is liquefied by the argon tower of the low-temperature air separation device and then transported to the cryogenic liquid storage tank (1). Af...

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PUM

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Abstract

The invention provides a process for filling low-temperature liquid tank wagon, wherein the two ends of the exhaust reclaiming hose are connected with the reclaiming tank and the atmospheric valves of the tank wagon, the filling hose on the low-temperature liquid storage tank is connected with the liquid intake valve of the tank wagon, the supercharging device of the low-temperature liquid storage tank is actuated, to make the low-temperature liquid storage tank fill liquid to the tank wagon through the filling hose. Compared with the low pressure filling process, the filling time of the process according to the present invention can be reduced by 2/5.

Description

technical field [0001] The invention relates to a method for filling a low-temperature liquid tank car, and belongs to the technical field of low-temperature oxygen production. Background technique [0002] High vacuum cryogenic liquid tanker is the main long-distance transportation tool for cryogenic liquid. Usually, in the process of filling the liquid tank car with liquid, the pre-cooling of the tank car and connecting hose before filling, the necessary boost of the storage tank during filling, and the reheating and evaporation of the low-temperature liquid will inevitably cause the vaporization of the liquid product. loss. [0003] The conventional low-temperature liquid storage tank is a low-pressure storage tank. When charging the car, since the storage tank is connected with the liquid production equipment, the pressure in the gas phase space of the storage tank cannot be too high, resulting in a long liquid filling time and gasification during the filling process. ...

Claims

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Application Information

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IPC IPC(8): B67D7/02
Inventor 王林平张永康王卫军
Owner ANYANG IRON & STEEL
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