CN-224211986-U - Special tool for filling molecular sieve in low-temperature container

CN224211986UCN 224211986 UCN224211986 UCN 224211986UCN-224211986-U

Abstract

The utility model relates to the technical field of low-temperature container manufacturing, in particular to a special tool for filling molecular sieves in a low-temperature container. The molecular sieve conveying pipe comprises a funnel body, a molecular sieve conveying pipe, a straight pipe section I, a bent pipe section and a straight pipe section II, wherein the interior of the funnel body is provided with a molecular sieve, the outer wall of the funnel body is wrapped with an insulating layer, the outer side of the molecular sieve conveying pipe is provided with a handle, the molecular sieve conveying pipe is sequentially arranged and is divided into the straight pipe section I, the bent pipe section I and the straight pipe section II, the straight pipe section I is arranged at the bottom of the funnel body through a molecular sieve valve, the bent pipe section is of a three-way structure, two ends of the bent pipe section are respectively connected with the straight pipe section I and the straight pipe section II, the side of the bent pipe section is connected with a high-pressure nitrogen conveying pipe, and the straight pipe section II is inserted into the interior of a low-temperature container to blow the molecular sieve towards the low-temperature container. The utility model adds a molecular sieve valve at the bottom of the existing funnel to realize flow control, and adds a high-pressure nitrogen conveying pipe at the bending section to blow the retained molecular sieve to a low-temperature container through high-speed air flow, and simultaneously adds an insulating layer at the outer wall of the funnel to prevent the molecular sieve from being solidified by cooling.

Inventors

YANG SHUAIFENG
Song Tongqiang
LI JIANJIANG
XU PEI
LI QUNSHI
Huo Shidong
LIU ZHENGJUN
LI MINGLIANG
WANG PENG
XU GAOFENG

Assignees

中国石油天然气第七建设有限公司
中国石油工程建设有限公司
中国石油天然气集团有限公司

Dates

Publication Date: 20260508
Application Date: 20250530

Claims (6)

1. Special frock is filled to low temperature container molecular sieve, characterized by comprising: The funnel comprises a funnel body (1), wherein a molecular sieve is contained in the funnel body, an insulating layer (5) is wrapped on the outer wall of the funnel body, and a handle (6) is arranged on the outer side of the funnel body; Molecular sieve conveyer pipe (3), set gradually and divide into straight tube section I, bend section, straight tube section II, wherein: the straight pipe section I is arranged at the bottom of the funnel body (1) through a molecular sieve valve (2); The bent pipe section is of a three-way structure, two ends of the bent pipe section are respectively connected with the straight pipe section I and the straight pipe section II, and the side part of the bent pipe section is connected with the high-pressure nitrogen conveying pipe (4); a straight pipe section II inserted into the interior of the low-temperature container and blowing molecular sieves towards the low-temperature container; The high-speed air flow blows from the high-pressure nitrogen conveying pipe (4) to the bent pipe section to drive the molecular sieve in the molecular sieve conveying pipe (3) to enter the low-temperature container.
2. The tooling special for filling the molecular sieve in the low-temperature container according to claim 1, wherein the opening diameter of the funnel body (1) is 200mm, and a manual molecular sieve valve (2) is arranged at the bottom of the funnel body.
3. The tooling special for filling the molecular sieve of the low-temperature container according to claim 1, wherein the handle (6) is arranged on one side of the funnel body (1) which has the same bending direction as the bending direction of the bent pipe section.
4. The tooling special for filling the molecular sieve in the low-temperature container according to claim 1, wherein one end of the high-pressure nitrogen delivery pipe (4) is horizontally welded to the bent pipe section, and the other end of the high-pressure nitrogen delivery pipe (4) is connected with the high-pressure nitrogen tank through a hose.
5. The tooling special for filling the molecular sieve in the low-temperature container according to claim 1 or 4, wherein the high-pressure nitrogen conveying pipe (4) is a stainless steel pipe with the diameter phi 10mm 1mm and the length 30 mm.
6. The tooling special for filling the molecular sieve in the low-temperature container according to claim 1, wherein the molecular sieve conveying pipe (3) is a stainless steel pipe with the diameter phi of 30mm by 2.5mm and the length of 2000 mm.

Description

Special tool for filling molecular sieve in low-temperature container Technical Field The utility model relates to the technical field of low-temperature container manufacturing, in particular to a special tool for filling molecular sieves in a low-temperature container. Background In the manufacturing process of a low-temperature container, the filling of the molecular sieve is a key link for ensuring the stability of the molecular sieve. However, the molecular sieve chambers are typically mounted laterally on the inner vessel header to a large depth, while the fill port is only 30mm and is located on a vertical surface, which makes conventional filling methods difficult to implement. In order to solve the above technical problems, the following efforts are made by those skilled in the art. For example, the Chinese patent grant publication number is CN216789859U, which discloses a novel heat insulation structure of a liquid outlet pipeline of a low-temperature storage tank, wherein the liquid outlet pipeline adopts a vacuum pipe, and a circle of sleeve is additionally arranged outside the liquid outlet pipeline. However, the problems of low filling efficiency, long filling time and high production cost of the molecular sieve in the long-distance vertical pipeline are still unsolved. Disclosure of utility model The utility model aims to solve the technical problems of overcoming the defects of the prior art and providing a special tool for filling a molecular sieve in a low-temperature container. The technical scheme adopted by the utility model is as follows: a tooling special for molecular sieve filling of a low-temperature container, comprising: the funnel body is internally provided with a molecular sieve, the outer wall of the funnel body is wrapped with a heat preservation layer, and the outer side of the funnel body is provided with a handle; The molecular sieve conveying pipe is sequentially provided with a straight pipe section I, a bent pipe section and a straight pipe section II, wherein: The straight pipe section I is arranged at the bottom of the funnel body through a molecular sieve valve; the bent pipe section is of a three-way structure, two ends of the bent pipe section are respectively connected with the straight pipe section I and the straight pipe section II, and the side part of the bent pipe section is connected with the high-pressure nitrogen conveying pipe; a straight pipe section II inserted into the interior of the low-temperature container and blowing molecular sieves towards the low-temperature container; The high-speed air flow blows from the high-pressure nitrogen conveying pipe to the bent pipe section to drive the molecular sieve in the molecular sieve conveying pipe to enter the low-temperature container. According to the technical scheme, the molecular sieve valve is added at the bottom of the existing funnel body to control the flow, the high-pressure nitrogen conveying pipe is added at the bending section, the molecular sieve blocked at the bending section is driven by the telling air flow of the high-pressure nitrogen conveying pipe to continuously blow forward until the molecular sieve enters the low-temperature container, and the molecular sieve is easy to be cooled and solidified, so that the heat-insulating layer is further arranged on the outer wall of the funnel body. When the molecular sieve is used, two persons are needed to cooperate, one person stands above, holds the handle and holds the funnel body, observes the falling condition of the molecular sieve in the funnel body, and the other person stands below, holds the high-pressure nitrogen conveying pipe and controls the molecular sieve valve, inserts the straight pipe section III into the low-temperature container, and is used for ensuring that the molecular sieve smoothly enters the low-temperature container. In addition, the tooling special for filling the molecular sieve in the low-temperature container provided by the utility model can also have the following additional technical characteristics: According to one embodiment of the utility model, the opening diameter of the funnel body is 200mm, and the bottom of the funnel body is provided with a manual molecular sieve valve. In the technical scheme, the molecular sieve is temporarily stored in the funnel body, and the molecular sieve valve is opened by a manual opening and closing mode. According to one embodiment of the utility model, the handle is mounted on the same side of the funnel body as the bending direction of the bend section. In this technical scheme, the personnel of the position convenience top of handle installation hold, do not influence the butt joint of below molecular sieve conveyer pipe and low temperature container yet, also just in time cooperate with the personnel of the below hopper body opposite side. According to one embodiment of the utility model, one end of the high-pressure nitrogen delivery pipe is welded to the bent pipe s