Special tool for filling molecular sieve in low-temperature container

Abstract

The utility model relates to the technical field of low-temperature container manufacturing, in particular to a special tool for filling a molecular sieve of a low-temperature container. A molecular sieve is contained in the funnel body, the outer wall of the funnel body is wrapped by a heat preservation layer, and a handle is installed on the outer side of the funnel body. The molecular sieve conveying pipe is sequentially divided into a straight pipe section I, a bent pipe section and a straight pipe section II, and the straight pipe section I is installed 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 a high-pressure nitrogen delivery pipe; and the straight pipe section II is inserted into the low-temperature container and blows the molecular sieve towards the low-temperature container. According to the utility model, the molecular sieve valve is additionally arranged at the bottom of the existing funnel to realize flow control, and the high-pressure nitrogen delivery pipe is additionally arranged at the bent section, so that the retention molecular sieve is blown to a low-temperature container through high-speed airflow; meanwhile, a heat-insulating layer is additionally arranged on the outer wall of the funnel to prevent the molecular sieve from cold curing.

Description

Technical Field

[0001] This utility model relates to the field of cryogenic container manufacturing technology, specifically to a special tooling for filling molecular sieves into cryogenic containers. Background Technology

[0002] In the manufacturing process of cryogenic containers, the filling of molecular sieves is a crucial step in ensuring their stable performance. However, molecular sieve chambers are typically installed horizontally on the inner container head, resulting in a considerable depth, while the filling port is only 30mm and located on the vertical surface, making conventional filling methods difficult to implement. To address these technical problems, those skilled in the art have made the following efforts. For example, Chinese Patent Publication No. CN216789859U discloses a novel insulation structure for the outlet pipe of a cryogenic storage tank, in which the outlet pipe uses a vacuum tube with an additional outer sleeve. However, the above solution still suffers from the following unresolved issues: it cannot solve the industry-wide problem of molecular sieve clogging in long-distance vertical pipelines, resulting in low filling efficiency, long filling time, and high production costs. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a special tooling for filling molecular sieves in low-temperature containers.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A special tooling for filling molecular sieves into cryogenic containers includes:

[0006] The funnel body contains molecular sieves, its outer wall is wrapped with a heat insulation layer, and a handle is installed on its outer side.

[0007] The molecular sieve conveying pipe is sequentially divided into straight pipe section I, a curved pipe section, and straight pipe section II, wherein:

[0008] Straight pipe section I is installed at the bottom of the funnel body via a molecular sieve valve;

[0009] The bend section is a tee structure, with its two ends connected to straight pipe section I and straight pipe section II respectively, and its side connected to the high-pressure nitrogen delivery pipe.

[0010] Straight pipe section II is inserted into the interior of the cryogenic container, and molecular sieves are blown toward the cryogenic container;

[0011] In this process, a high-speed airflow is blown from the high-pressure nitrogen delivery pipe to the bend section, which in turn drives the molecular sieve in the molecular sieve delivery pipe into the cryogenic container.

[0012] This technical solution controls the flow rate by adding a molecular sieve valve to the bottom of the existing funnel body and a high-pressure nitrogen delivery pipe to the bend section. The high-speed airflow from the high-pressure nitrogen delivery pipe propels the molecular sieve blocked in the bend section forward until it enters the cryogenic container. Since the molecular sieve is prone to solidification, an insulation layer is also installed on the outer wall of the funnel body. Two people are required for operation: one stands above, holding the handle and supporting the funnel body to observe the descent of the molecular sieve; the other stands below, holding the high-pressure nitrogen delivery pipe and controlling the molecular sieve valve, inserting the straight section III into the cryogenic container to ensure the smooth entry of the molecular sieve.

[0013] In addition, the special tooling for filling molecular sieves in cryogenic containers proposed above according to this utility model may also have the following additional technical features:

[0014] According to one embodiment of the present invention, the funnel body has an opening diameter of 200 mm and a manually operated molecular sieve valve is installed at its bottom.

[0015] In this technical solution, a molecular sieve is temporarily stored inside the funnel body, and the molecular sieve valve is opened by manual opening and closing.

[0016] According to one embodiment of the present invention, the handle is installed on one side of the funnel body in the same direction as the bending direction of the bent pipe section.

[0017] In this technical solution, the handle is installed in a position that allows personnel above to hold it without affecting the connection between the molecular sieve delivery pipe and the cryogenic container below. It also allows personnel located on the other side of the funnel body to cooperate with it.

[0018] According to one embodiment of the present invention, one end of the high-pressure nitrogen delivery pipe is horizontally welded to the bend section, and the other end of the high-pressure nitrogen delivery pipe is connected to the high-pressure nitrogen tank through a hose.

[0019] In this technical solution, the high-pressure nitrogen delivery pipe is flush with the straight pipe section III to ensure that the airflow moves in a straight line inside the stainless steel pipe, thus ensuring the best blowing effect.

[0020] According to one embodiment of the present invention, the high-pressure nitrogen delivery pipe is a stainless steel pipe with a diameter of Φ10mm*1mm and a length of 30mm.

[0021] In this technical solution, the diameter of the high-pressure nitrogen delivery pipe matches the diameter of the hose to ensure a sealed connection.

[0022] According to one embodiment of the present invention, the molecular sieve conveying pipe is a stainless steel pipe with a diameter of Φ30mm*2.5mm and a length of 2000mm.

[0023] In this technical solution, the straight pipe section I, the curved pipe section, and the straight pipe section II of the molecular sieve conveying pipe all maintain the same diameter to avoid affecting the descent of the molecular sieve.

[0024] Compared with the prior art, this utility model has the following advantages:

[0025] This invention adds a molecular sieve valve to the bottom of the existing funnel to achieve flow control, and adds a high-pressure nitrogen delivery pipe to the bending section to blow the retained molecular sieve to the low-temperature container through high-speed airflow; at the same time, an insulation layer is added to the outer wall of the funnel to prevent the molecular sieve from solidifying due to cold. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of this utility model.

[0027] In the diagram: 1. Funnel body; 2. Molecular sieve valve; 3. Molecular sieve delivery pipe; 4. High-pressure nitrogen delivery pipe; 5. Insulation layer; 6. Handle. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Example 1

[0030] like Figure 1 As shown, this embodiment provides a special tooling for filling molecular sieves into cryogenic containers, including:

[0031] The funnel body 1 contains a molecular sieve inside, its outer wall is wrapped with a heat insulation layer 5, and a handle 6 is installed on its outer side.

[0032] The molecular sieve conveying pipe 3 is sequentially divided into straight pipe section I, curved pipe section, and straight pipe section II, wherein:

[0033] Straight pipe section I is installed at the bottom of funnel body 1 via molecular sieve valve 2;

[0034] The bend section is a tee structure, with its two ends connected to straight pipe section I and straight pipe section II respectively, and its side connected to high-pressure nitrogen delivery pipe 4.

[0035] Straight pipe section II is inserted into the interior of the cryogenic container, and molecular sieves are blown toward the cryogenic container;

[0036] Among them, the high-speed airflow blows from the high-pressure nitrogen delivery pipe 4 to the bend section, driving the molecular sieve in the molecular sieve delivery pipe 3 into the cryogenic container.

[0037] like Figure 1 As shown, this technical solution controls the flow rate by adding a molecular sieve valve 2 to the bottom of the existing funnel body 1, and adding a high-pressure nitrogen delivery pipe 4 to the bend section. The high-speed airflow from the high-pressure nitrogen delivery pipe 4 drives the molecular sieve blocked in the bend section to continue to be blown forward until it enters the cryogenic container. Since the molecular sieve is easily solidified by cooling, an insulation layer 5 is also provided on the outer wall of the funnel body 1. Two people are required for use: one person stands above, holding the handle 6 and supporting the funnel body 1, observing the descent of the molecular sieve inside the funnel body 1; the other person stands below, holding the high-pressure nitrogen delivery pipe 4 and controlling the molecular sieve valve 2, inserting the straight pipe section III into the cryogenic container to ensure the smooth entry of the molecular sieve into the cryogenic container.

[0038] In addition, the special tooling for filling molecular sieves in cryogenic containers proposed above according to this utility model may also have the following additional technical features:

[0039] According to one embodiment of the present invention, the funnel body 1 has an opening diameter of 200 mm and a manually operated molecular sieve valve 2 is installed at its bottom.

[0040] In this technical solution, a molecular sieve is temporarily stored inside the funnel body 1, and the molecular sieve valve 2 is opened by manual opening and closing.

[0041] According to one embodiment of the present invention, the handle 6 is installed on one side of the funnel body 1 in the same direction as the bending direction of the bent pipe section.

[0042] In this technical solution, the handle 6 is installed in a position that is convenient for personnel above to hold, does not affect the connection between the molecular sieve conveying pipe 3 and the cryogenic container below, and is also convenient for personnel located on the other side of the funnel body 1 below to cooperate.

[0043] According to one embodiment of the present invention, one end of the high-pressure nitrogen delivery pipe 4 is horizontally welded to the bend section, and the other end of the high-pressure nitrogen delivery pipe 4 is connected to the high-pressure nitrogen tank through a hose.

[0044] In this technical solution, the high-pressure nitrogen delivery pipe 4 is flush with the straight pipe section III to ensure that the airflow moves in a straight line inside the stainless steel pipe and to ensure the best blowing effect.

[0045] According to one embodiment of the present invention, the high-pressure nitrogen delivery pipe 4 is a stainless steel pipe with a diameter of Φ10mm*1mm and a length of 30mm.

[0046] In this technical solution, the diameter of the high-pressure nitrogen delivery pipe 4 matches the diameter of the hose to ensure a sealed connection.

[0047] According to one embodiment of the present invention, the molecular sieve conveying pipe 3 is a stainless steel pipe with a diameter of Φ30mm*2.5mm and a length of 2000mm.

[0048] In this technical solution, the straight pipe section I, the curved pipe section, and the straight pipe section II of the molecular sieve conveying pipe 3 all maintain the same diameter to avoid affecting the descent of the molecular sieve.

[0049] The usage process of the above embodiments is as follows:

[0050] like Figure 1 As shown, during operation, the person above holds the handle 6 of the funnel body 1 to maintain stability, while the person below inserts the straight pipe section II into the cryogenic container. First, the molecular sieve valve 2 at the bottom of the funnel is manually opened, and the molecular sieve enters the straight pipe section I by gravity. When some particles accumulate in the bend section, the person below activates the high-pressure nitrogen delivery pipe 4. The 10mm diameter stainless steel pipe uses high-speed airflow to impact the blockage point, using the shear force of the airflow to re-fluidize the molecular sieve. Since the molecular sieve delivery pipe 3 uses a 30mm diameter stainless steel pipe throughout and maintains the same inner diameter, combined with the insulation layer 5 to maintain an ambient temperature above 30℃, the particles are prevented from cooling. Bridging; the nitrogen gas flow and molecular sieve exchange momentum at the T-junction in the bend section, propelling solid particles into the container along the straight section II; during operation, personnel at different levels can coordinate the opening and closing of valves and the timing of nitrogen supply to achieve continuous feeding over a 2000mm long-distance conveying pipe; a 200mm large-diameter funnel, combined with manual valve control, ensures the single filling volume and can match the nitrogen conveying capacity by adjusting the opening degree. Ultimately, through the combined effect of pneumatic conveying and gravity feeding, the industry problem of molecular sieve clogging in long-distance vertical pipelines is solved, improving filling efficiency, shortening filling time, and reducing production costs.

[0051] Although the present invention has been described in detail with reference to the accompanying drawings and preferred embodiments, it is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the present invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the scope of the claims.

Claims

1. A special tooling for filling molecular sieves into cryogenic containers, characterized in that, include: The funnel body (1) contains molecular sieves, its outer wall is wrapped with a heat insulation layer (5), and a handle (6) is installed on its outer side. The molecular sieve conveying pipe (3) is sequentially divided into straight pipe section I, curved pipe section, and straight pipe section II, wherein: Straight pipe section I is installed at the bottom of funnel body (1) via molecular sieve valve (2); The bend section is a tee structure, with its two ends connected to straight pipe section I and straight pipe section II respectively, and its side connected to the high-pressure nitrogen delivery pipe (4); Straight pipe section II is inserted into the interior of the cryogenic container, and molecular sieves are blown toward the cryogenic container; Among them, the high-speed airflow blows from the high-pressure nitrogen delivery pipe (4) to the bend section, driving the molecular sieve in the molecular sieve delivery pipe (3) into the low-temperature container.

2. The special tooling for filling molecular sieves in cryogenic containers as described in claim 1, characterized in that, The funnel body (1) has an opening diameter of 200 mm and a manually operated molecular sieve valve (2) is installed at its bottom.

3. The special tooling for filling molecular sieves in cryogenic containers as described in claim 1, characterized in that, The handle (6) is installed on one side of the funnel body (1) in the same direction as the bend of the pipe section.

4. The special tooling for filling molecular sieves in cryogenic containers as described in claim 1, characterized in that, One end of the high-pressure nitrogen delivery pipe (4) is horizontally welded to the bend section, and the other end of the high-pressure nitrogen delivery pipe (4) is connected to the high-pressure nitrogen tank through a hose.

5. The special tooling for filling molecular sieves in cryogenic containers as described in claim 1 or 4, characterized in that, The high-pressure nitrogen delivery pipe (4) is a stainless steel pipe with a diameter of Φ10mm*1mm and a length of 30mm.

6. The special tooling for filling molecular sieves in cryogenic containers as described in claim 1, characterized in that, The molecular sieve conveying pipe (3) is a stainless steel pipe with a diameter of Φ30mm*2.5mm and a length of 2000mm.

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