Pearlite sand filling device and method

A filling device and filling method technology, which are applied to container filling methods, container discharge methods, ship construction details, etc., can solve problems such as difficulty in attaining vacuum degree, and achieve the effects of low cost, improved work efficiency, and fast filling.

Pending Publication Date: 2020-03-10
YICHANG JIANGXIA MARINE MACHINERY +1
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to solve the deficiencies in the above-mentioned background technology, and provide a pearlite sand filling device and method, which can make the moisture content of the pearlite sand reach the range specified by the standard before it is filled into the low-temperature container interlayer; It is difficult to achieve the vacuum degree specified by the standard when the sand is filled into the interlayer of the low-temperature container due to the high water content; it increases the time required to pump the pearlite interlayer to the specified vacuum degree, which greatly improves the production efficiency and effect

Method used

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  • Pearlite sand filling device and method

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Embodiment 2

[0045] A method for filling a pearlite filling device, which comprises the following steps:

[0046] Step 1: Calculate the volume that needs to be filled with pearlite according to the size of the cryogenic container;

[0047] Step 2: Determine the number of pearlite filling devices according to the calculated volume that needs to be filled with pearlite;

[0048]Step 3: Determine the position of the pearlite filling device on the cylinder according to the structure of the cryogenic container;

[0049] Step 4: Install the pearlite filling device at the corresponding position of the cryogenic container outer tank 11 of the cryogenic container according to the determined installation position;

[0050] Step 5: Connect the first pipe joint 10 of the pearlite filling device with the air heating device for supplying hot air, and connect the second pipe joint 1 with the pearlite storage tank;

[0051] Step 6: Connect the vacuum tube 13 to the vacuum pump, and vacuumize the interla...

Embodiment 3

[0059] In this embodiment, the low-temperature container that needs to be filled in practice is taken as an example to further illustrate the filling method of the present invention.

[0060] A method for filling with a pearlite filling device, comprising the following steps:

[0061] Step 1: Calculate the volume that needs to be filled with pearlite according to the size of the cryogenic container;

[0062] Interlayer volume calculation (based on 20m 3 Cryogenic liquid storage tank as an example)

[0063] The internal volume of the disc-shaped head of the shell: V01=1.7427m 3

[0064] Shell cylinder volume: V02= π / 4·Do 2 •Lo=π / 4×2.5 2 ×6.935=34.05m 3

[0065] Shell geometric volume: Vo= 2 V01+ V02=37.53m 3

[0066] Interlayer volume: Vj=Vo-Vi=37.53-(π / 4×(2.016) 2 ×5.985+2×1.1257+(278.4+348.9) / 7930)=16.1 m 3

[0067] In the formula: Do----inner diameter of shell cylinder; Do=2.5m;

[0068] Lo-----The length of the shell cylinder; Lo=6.935m;

[0069] Step 2: Deter...

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Abstract

The invention provides a pearlite sand filling device and method. The pearlite sand filling device comprises a bottom communication pipe for communicating with and fixing an outer tank of a low-temperature container, wherein a first flange plate is fixed to the top of the bottom communication pipe, the first flange plate and a second flange plate are fixedly connected through flange bolt sets, thesecond flange plate is connected with a top communication pipe, the top communication pipe is fixedly connected with one joint of a three-way joint, a first ceramic ball valve is installed at the middle joint of the three-way joint, and a second ceramic ball valve is mounted at the top joint of the three-way joint. The problem that standard prescribed vacuum degree is not easily achieved when thepearlite sand is vacuumized due to too high water content after the pearlite sand is filled into a low-temperature container interlayer is solved; and the time required for pumping the pearl sand interlayer to a specified vacuum degree is improved, and the production efficiency and effect are greatly improved.

Description

technical field [0001] The invention belongs to the field of pressure vessel manufacturing equipment, in particular to a pearlite filling device and method. 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. [0003] Pearlescent sand is a kind of expanded perlite, which is made of glassy mountain rock after crushing and high-temperature roasting. It has extremely low thermal conductivity and strong water absorption. When filling the pearlite sand in the cryogenic container, if the filling time is too long, the moisture and impurities adsorbed by the pearlite sand will affect the vacuuming effect. D...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17C1/12F17C13/00F17C13/04
CPCF17C1/12F17C13/001F17C13/04F17C2203/0341
Inventor 杨镇刘志东
Owner YICHANG JIANGXIA MARINE MACHINERY
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