Adsorbent device

Abstract

The utility model relates to the field of low-temperature liquid tank containers, and discloses an adsorbent device which comprises a round pipe, a support is installed at one end of the round pipe, a connector assembly is installed at the other end of the round pipe, an adsorption chamber is defined by the inner wall of the round pipe, the support and the connector assembly, and the tail end of the connector assembly is connected with a branch pipe. An inner hole is formed in the support in a penetrating mode, the adsorption chamber is communicated with an interlayer between the inner end socket and the outer end socket through the inner hole, the tail end of the branch pipe penetrates through the outer end socket and extends to the outer side, and a foil piece used for sealing the inner hole is arranged in the inner hole. After the interlayer is vacuumized, gas is filled from the outer side end of the branch pipe to break through the foil, so that the adsorption chamber in the circular pipe is communicated with the interlayer, and the gas adsorption function in the interlayer is realized; and the circular pipe can be fixedly attached to the inner sealing head, so that the interlayer space occupied by the device is reduced, the volume of the inner container is effectively increased under the condition that the overall dimension is not changed, and the filling amount of liquid in the tank is increased.

Description

Technical Field

[0001] This utility model relates to the field of cryogenic liquid tank containers, specifically to an adsorbent device. Background Technology

[0002] A cryogenic storage tank is a special container used to store cryogenic liquids. It typically consists of an inner tank, an outer tank, an insulation layer, a piping system, valves, and instruments. The inner tank stores the cryogenic liquid, while the outer tank provides protection and support. The insulation layer, located between the inner and outer tanks, reduces heat transfer. Its principle is primarily based on the characteristics of cryogenic liquids and the principles of heat transfer. By employing efficient insulation measures, the transfer of external heat into the tank is reduced, allowing the cryogenic liquid to be stored at a relatively stable low temperature.

[0003] Most insulation layers are vacuum-treated, and an adsorbent device is installed in the interlayer. Its function is to adsorb the gas in the container interlayer, maintain the vacuum degree of the interlayer space, and ensure the insulation performance of the cryogenic tank.

[0004] However, existing cryogenic adsorbent devices use a relatively large structure, such as an elliptical head structure. The adsorbent device contains cryogenic adsorbent, and because the head is large, it occupies a lot of space, which prevents the inner tank volume from being increased, resulting in a relatively small cryogenic filling capacity. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an adsorbent device that effectively increases the volume of the inner container while keeping the outer dimensions unchanged by reducing the space occupied by the adsorbent device in the interlayer. This increases the amount of liquid that can be filled into the container.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] An adsorbent device includes a circular tube with a support at one end and a connector assembly at the other end. An adsorption chamber for filling with adsorbent is formed between the inner wall of the circular tube, the support, and the connector assembly. A branch pipe communicating with the adsorption chamber is connected to the end of the connector assembly. An inner hole is formed through the support. The adsorption chamber communicates with an interlayer between inner and outer end caps through the inner hole. The end of the branch pipe extends outward through the outer end cap. A foil sheet for sealing the inner hole is disposed within the inner hole.

[0008] Optionally, a perforated plate for preventing adsorbent leakage is fixedly installed in the inner hole, and the perforated plate is located on one side of the foil.

[0009] Optionally, one end of the support is embedded in the circular tube, and the other end is provided with an isolation net.

[0010] Optionally, the connector assembly includes a connector body and a support plate that is fixedly embedded in the round tube. The support plate has a through hole, through which the connector body passes and is mounted on the support plate, and the support tube is fixedly connected to the connector body.

[0011] Optionally, the connector body has interconnected insertion holes and air holes inside, the inner diameter of the insertion hole is larger than the inner diameter of the air hole, and one end of the branch pipe is fixedly embedded in the insertion hole.

[0012] Optionally, the outer side of the connector body is provided with an outwardly protruding shoulder, the outer diameter of the shoulder is larger than the inner diameter of the through hole, and the shoulder is located on the outer side of the support plate.

[0013] Optionally, a filter screen is provided at one end of the connector body opposite to the socket.

[0014] Optionally, the branch pipe includes a first pipe body and a second pipe body connected to each other, the first pipe body being connected to the joint assembly, and the diameter and length of the first pipe body being greater than those of the second pipe body.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] (1) In this utility model, after the interlayer is evacuated, gas is injected from the outer end of the branch pipe to break the foil, so that the adsorption chamber in the round tube is connected with the interlayer, thereby realizing the adsorption function of the gas in the interlayer; and the round tube can be fixedly attached to the inner end cap, thereby reducing the interlayer space occupied by the device, and effectively increasing the volume of the inner container and increasing the filling amount of liquid in the tank without changing the outer dimensions.

[0017] (2) In this utility model, the perforated plate has multiple holes, which can ensure the communication between the adsorption chamber and the interlayer space so as to adsorb the gas inside, and also prevent the adsorbent in the adsorption chamber from leaking through the support into the interlayer space.

[0018] (3) In this utility model, a filter screen is provided at one end of the connector body, which can filter the gas used to break the foil and prevent the impurities mixed in it from entering the adsorbent and affecting the adsorption effect of the gas. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the adsorbent device in an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the support structure in an embodiment of this utility model;

[0021] Figure 3 This is a schematic diagram of the connector assembly in an embodiment of this utility model;

[0022] Figure 4 This is a schematic diagram of the perforated plate in an embodiment of this utility model;

[0023] Figure 5 This is a schematic diagram of the connector body in an embodiment of this utility model;

[0024] Among them, 1. circular tube; 2. support; 201. inner hole; 202. perforated plate; 203. foil; 204. isolation net; 205. first groove;

[0025] 3. Connector assembly; 301. Support plate; 302. Connector body; 321. Insertion hole; 322. Air hole; 323. Shoulder; 324. Second groove; 303. Filter screen;

[0026] 4. Branch pipe; 401. First tube body; 402. Second tube body; 5. Adsorption chamber. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0028] like Figure 1 , Figure 2 and Figure 4 As shown, an adsorbent device includes a circular tube 1, a support 2, a connector assembly 3, and a branch pipe 4. The support 2 and the connector assembly 3 are respectively fixedly installed at both ends of the circular tube 1. An adsorption chamber 5 for filling adsorbent is formed between the inner wall of the circular tube 1, the support 2, and the connector assembly 3. The branch pipe 4 is connected to the connector assembly 3 and communicates with the adsorption chamber 5.

[0029] The support 2 has an inner hole 201 extending through it along the axial direction. A foil 203 is placed in the inner hole 201. The foil 203 can be made of copper foil. Its function is to seal the inner hole 201 and prevent the adsorption chamber 5 from communicating with the interlayer space when the low-temperature liquid storage tank is evacuated.

[0030] Specifically, the inner and outer tanks of the cryogenic storage tank are respectively equipped with an inner end cap and an outer end cap, and there is a space between the inner and outer end caps. The round tube 1 can be attached and fixed to the outer wall of the inner end cap, the support 2 is located between the inner and outer end caps, and the end of the branch tube 4 extends to the outside through the outer end cap.

[0031] After the interlayer space is evacuated, gas is injected from the outer end of the branch pipe 4 to break the foil 203, so that the adsorption chamber 5 inside the circular tube 1 is connected to the interlayer space, thereby realizing the adsorption function of the gas in the interlayer; and the circular tube 1 can be fixedly attached to the inner end cap, thereby reducing the interlayer space occupied by the device, effectively increasing the volume of the inner container and increasing the filling amount of liquid in the tank without changing the outer dimensions.

[0032] As described above, a first groove 205 is provided on the outer side of the support 2, and one end of the support 2 is embedded in the round tube 1, while the other end is provided with an isolation net 204. The isolation net 204 covers the end of the support 2, and its edge is fixed to the first groove 205 by a binding rope from the outside, thereby fixing the isolation net 204 on the support 2.

[0033] Furthermore, a perforated plate 202 is fixedly installed in the inner hole 201. The perforated plate 202 has multiple holes and is located on one side of the foil 203.

[0034] The adsorbent used here is a 5A molecular sieve with an outer diameter between 4 and 6 mm. The inner diameter of the plate pores is smaller than the outer diameter of the molecular sieve, which can be 0.9 mm. This allows gas molecules to pass through the perforated plate 202 from the outside and enter the adsorption chamber 5, while the adsorbent in the adsorption chamber 5 cannot pass through the perforated plate 202 to get out, thus achieving the function of preventing adsorbent leakage.

[0035] like Figure 3 and Figure 5 As shown, the connector assembly 3 includes a support plate 301, a connector body 302, and a filter screen 303. The support plate 301 is fixedly embedded in the end of the round pipe 1. A through hole is provided on the support plate 301. The connector body 302 passes through the through hole and is installed on the support plate 301. The branch pipe 4 is fixedly connected to the connector body 302.

[0036] As described above, the two ends of the circular tube 1 are respectively fixedly embedded with a support 2 and a support plate 301. The adsorption chamber 5 is surrounded between the inner wall of the circular tube 1, the support, and the support plate 301. The outer sides of the support 2 and the support plate 301 are sealed to the open end of the circular tube 1 to ensure that when vacuuming, under the action of the foil 203, the adsorption chamber 5 is isolated from the interlayer space and ensures that the gas that breaks through the foil 203 can reach the designated position along the branch tube 4.

[0037] The outer side of the connector body 302 is also sealed to the through hole. A shoulder 323 protrudes outward from the outer side of the connector body 302. The outer diameter of the shoulder 323 is larger than the inner diameter of the through hole, and the shoulder 323 is located outside the support plate 301. The function of the shoulder 323 is to limit the length of the end of the connector body 302 extending into the adsorption chamber 5, preventing the entire connector body 302 from entering the adsorption chamber 5 and compromising its sealing.

[0038] Furthermore, the connector body 302 has interconnected insertion holes 321 and air holes 322 inside. The insertion hole 321 is near the outer end, and the air hole 322 is near the inner end. The inner diameter of the insertion hole 321 is larger than the inner diameter of the air hole 322. The branch pipe 4 includes a first pipe body 401 and a second pipe body 402 that are interconnected. The diameter of the first pipe body 401 is larger than the diameter of the second pipe body 402, and the length of the first pipe body 401 is also larger than the length of the second pipe body 402. One end of the first pipe body 401 is embedded in the insertion hole 321 to achieve a fixed and sealed connection.

[0039] The first pipe body 401 can be a pipe with an outer diameter of 12mm, a wall thickness of 2mm, and a length of 1500mm, while the second pipe body 402 can be a copper pipe with an outer diameter of 6mm, a wall thickness of 1mm, and a length of 150mm. The two are fixedly and sealed together.

[0040] In addition, a filter screen 303 is provided at the end of the connector body 302 opposite to the insertion hole 321, which can filter the gas used to break the foil 203 and prevent impurities mixed in it from entering the adsorbent and affecting the gas adsorption effect.

[0041] The outer side of the connector body 302 is provided with a second groove 324. Similar to the isolation net 204, the filter 303 covers the inner end of the connector body 302. Its edge is fixed to the second groove 324 by a binding rope from the outside, thereby realizing the fixed installation of the filter 303 on the connector body 302.

[0042] Working principle:

[0043] First, the circular tube 1 of the adsorbent device is welded and fixed to the outer wall of the inner head, so that the circular tube 1 is fixedly attached to the outside of the inner head. Then, the outer tank is placed on the inner tank, so that the support 2 and the connector assembly 3 are located between the inner and outer heads. Then, the end of the branch pipe 4 is extended to the outside through the outer head.

[0044] After the interlayer space is formed between the inner and outer end caps, it is evacuated. After the vacuum is completed, high-pressure dry gas (nitrogen can be used) is injected from the end of the second tube 402 through external equipment. The dry gas enters the adsorption chamber 5 along the branch pipe 4 and breaks the foil 203 inside the support 2, so that the adsorption chamber 5 is connected to the interlayer space. At the same time, the second tube 402 is bent and screwed shut to keep it in a closed state.

[0045] At this time, only one end of the support 2 is open in the adsorption chamber 5. When gas molecules are generated in the interlayer space due to various factors, they can eventually enter the adsorption chamber 5 through the perforated plate 202 along the inner hole 201 under the action of the adsorbent, thereby ensuring that the interlayer space is in a good vacuum state, reducing the heat transfer between the inner tank and the outside world, and ensuring the heat preservation and storage effect of the low temperature liquid storage tank.

[0046] The outer end cap is also fixedly installed with an inner sleeve and an outer sleeve. The inner sleeve is fixedly installed on the outer end cap and mainly serves as a support. The second tube 402 extends to the outside through the inner sleeve. After the second tube 402 is bent and blocked, the outer sleeve is placed on the inner sleeve. The outer sleeve and the outer end cap are fixedly connected by welding to achieve the encapsulation of the second tube 402.

[0047] In summary, this utility model effectively utilizes the curvature of the inner and outer end caps by modifying the low-temperature adsorbent device into a circular tube structure that fits snugly against the inner end cap, thereby reducing the amount of space occupied in the interlayer. While maintaining the same external dimensions, the volume of the inner tank increases, thus achieving the effect of increasing the liquid filling capacity.

[0048] In practical use, the internal volume of the tank is increased by 0.4m³. 3 It can hold an additional 324 kg of liquid nitrogen, 456 kg of liquid oxygen, and 564 kg of liquid argon.

[0049] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0050] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0051] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An adsorbent device, characterized in that: Includes a circular tube (1), one end of which is equipped with a support (2) and the other end is equipped with a connector assembly (3). The inner wall of the circular tube (1) is surrounded by the support (2) and the connector assembly (3) to form an adsorption chamber (5) for filling with adsorbent. The end of the connector assembly (3) is connected to a branch pipe (4) that communicates with the adsorption chamber (5). The support (2) has an inner hole (201) through it. The adsorption chamber (5) is connected to the interlayer between the inner and outer end caps through the inner hole (201). The end of the branch pipe (4) extends to the outside through the outer end cap. A foil (203) for sealing the inner hole (201) is provided in the inner hole (201).

2. The adsorbent device according to claim 1, characterized in that: An orifice plate (202) for preventing adsorbent leakage is fixedly installed in the inner hole (201), and the orifice plate (202) is located on one side of the foil (203).

3. The adsorbent device according to claim 2, characterized in that: One end of the support (2) is embedded in the round tube (1), and the other end is provided with an isolation net (204).

4. The adsorbent device according to claim 1, characterized in that: The connector assembly (3) includes a connector body (302) and a support plate (301) fixedly embedded in the round tube (1). The support plate (301) has a through hole, the connector body (302) passes through the through hole and is mounted on the support plate (301), and the support tube (4) is fixedly connected to the connector body (302).

5. The adsorbent device according to claim 4, characterized in that: The connector body (302) has interconnected insertion holes (321) and air holes (322) inside. The inner diameter of the insertion hole (321) is larger than the inner diameter of the air hole (322), and one end of the branch pipe (4) is fixedly embedded in the insertion hole (321).

6. The adsorbent device according to claim 5, characterized in that: The outer side of the connector body (302) is provided with an outwardly protruding shoulder (323), the outer diameter of the shoulder (323) is larger than the inner diameter of the through hole, and the shoulder (323) is located on the outer side of the support plate (301).

7. The adsorbent device according to claim 6, characterized in that: A filter screen (303) is provided at one end of the connector body (302) opposite to the socket (321).

8. The adsorbent device according to any one of claims 1-7, characterized in that: The branch pipe (4) includes a first pipe body (401) and a second pipe body (402) connected to each other. The first pipe body (401) is connected to the connector assembly (3), and the diameter and length of the first pipe body (401) are both greater than those of the second pipe body (402).

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