A penetration structure for the top of a cold box

Abstract

The utility model discloses a through structure for the top of a cold box, belonging to the technical field of cold boxes; it includes a delivery pipeline, which runs through the top of the cold box and extends into the cold box; a sleeve hole is provided around the delivery pipeline on the top of the cold box, and a first sleeve is provided at the sleeve hole toward the outside of the cold box; a floating sleeve body connects the first sleeve and the delivery pipeline along the axial direction of the delivery pipeline; a second sleeve is provided on the outside of the floating sleeve body; and a waterproof plate is located on the upper part of the second sleeve. The beneficial effects of the above technical solution are: it integrates waterproof, cold preservation, and anti-displacement functions, enhances the stability and reliability of the cold box, and improves the efficiency and quality of air separation technology.

Description

Technical Field

[0001] The utility model relates to the technical field of cold boxes, in particular to a penetrating structure used for the top of a cold box. Background Art

[0002] Cold box plays an important role in the field of air separation. It is an indispensable part of air separation equipment and provides the necessary low temperature environment for the entire air separation process. In the air separation process, the effective separation and purification of liquefied air needs to be carried out at extremely low temperatures, and the cold box is the key to achieve this goal.

[0003] With the continuous advancement of air separation technology, the performance requirements for cold boxes are becoming increasingly stringent. As the core of air separation equipment, the stable operation of cold boxes is directly related to the efficiency and product quality of the entire air separation system. Therefore, in order to meet these growing demands, the optimization and improvement of cold boxes is particularly urgent.

[0004] In the prior art, the traditional cold box structure has some limitations in terms of waterproofing and cold preservation, and cannot effectively deal with the problem of pipeline displacement in a low-temperature environment. Under severe weather conditions, rainwater may penetrate and affect the internal equipment of the cold box, thereby affecting the effect and efficiency of air separation. Utility Model Content

[0005] The purpose of the utility model is to provide a through structure for the top of a cold box to solve the above technical problems;

[0006] A penetration structure for a cold box top, comprising:

[0007] a delivery pipeline, the delivery pipeline passing through the top of the cold box and extending into the cold box;

[0008] A sleeve hole is provided on the top of the cold box around the delivery pipeline, and a first sleeve is provided at the sleeve hole toward the outside of the cold box;

[0009] A floating sleeve body, connecting the first sleeve and the conveying pipeline along the axial direction of the conveying pipeline;

[0010] A second sleeve, arranged on the outside of the floating sleeve body;

[0011] A waterproof plate is located on the upper portion of the second sleeve.

[0012] Preferably, the floating sleeve body is in a wave shape.

[0013] Preferably, the diameter of the sleeve hole is equal to the outer diameter of the first sleeve.

[0014] Preferably, the conveying pipeline is an aluminum pipe, and the first sleeve is a carbon steel sleeve.

[0015] Preferably, a first clamp is provided on the first sleeve, and a second clamp is provided on the delivery pipe.

[0016] Preferably, one end of the waterproof plate is connected to an end of the second sleeve away from the first sleeve, and the other end of the waterproof plate is connected to the delivery pipeline.

[0017] Preferably, the second sleeve is a stainless steel sleeve, and the waterproof plate is an aluminum plate.

[0018] Preferably, the outer side of the second sleeve is provided with:

[0019] Fixed plate;

[0020] A fixing screw passes through the fixing plate and the second sleeve.

[0021] Preferably, the fixing plate is an aluminum ring plate, and the fixing screws are self-tapping screws.

[0022] Preferably, the outer diameter of the second sleeve is greater than the outer diameter of the first sleeve.

[0023] The beneficial effects of the utility model are: it integrates the functions of waterproofing, cold preservation and displacement prevention, enhances the stability and reliability of the cold box, and improves the efficiency and quality of the air separation technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a cross-sectional view of the penetrating structure for the top of the cold box of the utility model.

[0025] In the attached drawings: 1. conveying pipeline; 2. cold box; 3. sleeve hole; 4. first sleeve; 5. floating sleeve body; 6. waterproof board; 7. first clamp; 8. second clamp; 9. second sleeve; 91. fixing plate; 92. fixing screw. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0028] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0029] A through structure for the top of a cold box, such as Figure 1 As shown, including,

[0030] A delivery pipeline 1, the delivery pipeline 1 passes through the top of the cold box 2 and extends into the cold box 2;

[0031] A sleeve hole 3 is provided on the top of the cold box 2 around the delivery pipe 1, and a first sleeve 4 is provided at the sleeve hole 3 toward the outside of the cold box 2;

[0032] The floating sleeve body 5 connects the first sleeve 4 and the conveying pipeline 1 along the axial direction of the conveying pipeline 1;

[0033] The second sleeve 9 is arranged outside the floating sleeve body 5;

[0034] The waterproof plate 6 is located on the upper part of the second sleeve 9 .

[0035] Specifically, the utility model provides a through structure for the top of the cold box, in which the first sleeve 4 is connected to the conveying pipeline 1 through a floating sleeve body 5. When the pipeline is displaced due to low temperature, the floating sleeve body 5 can effectively absorb the displacement, ensure the stability of the structure, and realize the anti-displacement and cold-keeping functions; the waterproof board 6 can not only enhance the structural strength, but also play a role in rain protection.

[0036] More specifically, the second sleeve 9 provides a solid guarantee for the stable operation of the cold box 2, further improving the efficiency and quality of the air separation technology.

[0037] In a preferred embodiment, the floating sleeve body 5 is in a wave shape.

[0038] Specifically, the wavy design makes the floating sleeve body 5 more flexible and can better absorb the displacement of the delivery pipeline 1 caused by temperature changes or other factors. Compared with a rigid structure, the wavy shape is easier to bend and twist, thereby more effectively alleviating the deformation pressure of the pipeline and protecting the stability of the pipeline.

[0039] Specifically, the floating sleeve body 5 is made of silicone rubber, which can easily cope with low temperature environments, has excellent elasticity and softness, can better adapt to the displacement and deformation of the conveying pipeline 1, helps to extend the service life of the floating sleeve body 5, and improves its stability in harsh environments.

[0040] More specifically, silicone rubber has good shock absorption and buffering properties, and can effectively absorb the vibration and impact generated during the operation of the cold box 2, thereby reducing the impact on the conveying pipeline 1 and the surrounding structure and extending its service life.

[0041] In a preferred embodiment, the diameter of the sleeve hole 3 is equal to the outer diameter of the first sleeve 4 .

[0042] Specifically, a seamless connection with the top of the cold box 2 is achieved, which greatly improves the waterproof performance of the cold box 2. It can not only bear the weight of the top of the cold box 2, but also has the function of preventing displacement, further enhancing the stability and reliability of the cold box 2.

[0043] In a preferred embodiment, the delivery pipeline 1 is an aluminum tube, and the first sleeve 4 is a carbon steel sleeve.

[0044] Specifically, aluminum pipes are lighter than other metal pipes (such as steel pipes), which can reduce the weight of the overall structure and the load on the supporting structure, which is conducive to reducing the overall weight of the cold box 2, thereby reducing energy consumption and costs. Aluminum has good thermal conductivity and can conduct refrigerant more quickly, improving refrigeration efficiency. Aluminum has good corrosion resistance and can resist some common corrosive media, such as moisture, salt spray, etc., thereby extending the service life of the conveying pipeline 1 and reducing the frequency of maintenance and replacement. The surface of the aluminum pipe is relatively smooth, which is conducive to the flow of refrigerant, reduces flow resistance, and improves the efficiency of the system.

[0045] More specifically, the carbon steel sleeve has high strength and stability, can withstand certain mechanical pressure and external environmental influences, can effectively fix and support the aluminum tube, and ensure the stability and safety of the conveying pipeline 1.

[0046] In a preferred embodiment, a first clamp 7 is provided on the first sleeve 4 , and a second clamp 8 is provided on the delivery pipeline 1 .

[0047] Specifically, the floating sleeve body 5 is connected to the first sleeve 4 and the conveying pipeline 1 through the first clamp 7 and the second clamp 8. Through the arrangement of the first clamp 7 and the second clamp 8, the floating sleeve body 5 can be more firmly connected to the first sleeve 4 and the conveying pipeline 1, thereby enhancing the stability of the connection and helping to prevent the connection from loosening or falling off when the conveying pipeline 1 is displaced or the external environment vibrates.

[0048] More specifically, the arrangement of the clamp can effectively share the bearing pressure between the delivery pipeline 1 and the sleeve. In particular, under the temperature changes and mechanical vibrations that may occur during the operation of the cold box 2, the clamp can firmly connect the floating sleeve body 5 to the pipeline and the sleeve, reducing the stress concentration at the connection and extending the service life of the connection.

[0049] More specifically, the clamp is usually connected by bolts, nuts or other fixing devices, making it easier to install and remove the floating sleeve body, the sleeve and the delivery pipeline 1. When maintenance or replacement is required, it is easy to operate by simply loosening the clamp, reducing the complexity and time-consuming maintenance work.

[0050] In a preferred embodiment, one end of the waterproof plate 6 is connected to an end of the second sleeve 9 away from the first sleeve 4, and the other end of the waterproof plate 6 is connected to the conveying pipeline 1;

[0051] The second sleeve 9 is a stainless steel sleeve, and the waterproof plate 6 is an aluminum plate.

[0052] Specifically, it can effectively prevent rainwater or other liquids from leaking from the connection between the sleeve and the pipe. The stainless steel sleeve is used as the material of the second sleeve 9, which has good corrosion resistance and can ensure long-term stable operation in a humid or corrosive environment. At the same time, the aluminum plate as the material of the waterproof plate 6 has the advantages of light weight and corrosion resistance, so that the waterproof plate 6 can effectively function in different environments.

[0053] More specifically, the second sleeve 9 made of stainless steel and the waterproof plate 6 made of aluminum material are easy to clean and maintain, which simplifies the maintenance process of the pipeline system and helps to keep the system clean and sanitary.

[0054] In a preferred embodiment, the outer side of the second sleeve 9 is provided with:

[0055] Fixed plate 91;

[0056] A fixing screw 92 passing through the fixing plate 91 and the second sleeve 9;

[0057] The fixing plate 91 is an aluminum ring plate, and the fixing screws 92 are self-tapping screws.

[0058] Specifically, the fixing plate 91 and the fixing screws 92 can ensure that the second sleeve 9 is firmly fixed to the outside of the floating sleeve body 5, thereby maintaining the stability and reliability of the system.

[0059] In further detail, the use of self-tapping screws as the fixing screws 92 can simplify the installation process because the self-tapping screws can be drilled directly into the material without drilling holes first. It can save installation time and reduce the tools and steps required for installation. The fixing plate 91 is made of aluminum ring plate, which has sufficient strength so that the entire assembly can remain lightweight while ensuring a stable fixation, which helps to reduce the overall weight of the system. The aluminum ring plate has good corrosion resistance and can be used stably for a long time in a humid or corrosive environment. It ensures that the fixing plate 91 can maintain its functional and appearance integrity under various environmental conditions.

[0060] More specifically, by tightly connecting the fixing plate 91 and the fixing screws 92 to the second sleeve 9, the reliability of the entire system can be enhanced, potential failures due to looseness or displacement can be reduced, and the service life of the system can be extended.

[0061] In a preferred embodiment, the outer diameter of the second sleeve 9 is greater than the outer diameter of the first sleeve 4 .

[0062] Specifically, the floating sleeve body 5 connects the first sleeve 4 and the delivery pipeline 1, and the second sleeve 9 is arranged outside the first sleeve 4. The second sleeve 9 increases the stability of the entire system, reduces the swing and vibration of the floating sleeve body 5 during use, and thus prolongs its service life.

[0063] More specifically, the waterproof board 6 is located on the upper part of the second sleeve 9, which can effectively prevent rainwater or other liquids from leaking from the connection between the second sleeve 9 and the delivery pipe 1, helping to protect the pipeline system, prevent water damage and prevent the surrounding environment from being affected by liquid leakage.

[0064] In the first embodiment, an aluminum tube is opened on the cold box 2 and passes through the upper part of the cold box 2, facing the outside of the cold box 2, and a carbon steel sleeve and a stainless steel sleeve are provided on the surrounding side of the aluminum tube. The carbon steel sleeve and the stainless steel sleeve are connected by a flexible floating sleeve, and a rainproof plate is provided above the stainless steel sleeve.

[0065] Specifically, the flexible floating sleeve is a vinyl silicone rubber floating sleeve, which is softer and has strong anti-oxidation performance, thereby increasing the service life of the flexible floating sleeve. The exterior is fixed with a stainless steel sleeve and an aluminum plate, which is welded to the pipe, which not only enhances the strength of the structure but also plays a role in rain protection.

[0066] Specifically, the aluminum tube penetration structure on the top of the cold box 2 integrates multiple functions such as waterproofing, cold preservation, and anti-displacement, providing a solid guarantee for the stable operation of the cold box 2. It also improves the efficiency and quality of air separation technology.

[0067] In summary, the present application provides a through structure for the top of a cold box. When the low temperature causes the pipeline to be displaced, the floating sleeve body 5 can effectively absorb the displacement, and combined with the second sleeve 9, the stability of the structure can be ensured to achieve anti-displacement and cold preservation functions; the waterproof board 6 can not only enhance the structural strength, but also play a role in rain protection.

[0068] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A penetration structure for the top of a cold box, characterized in that: include, A conveying pipeline (1), wherein the conveying pipeline (1) passes through the top of the cold box (2) and extends into the cold box (2); A sleeve hole (3) is provided at the top of the cold box (2) around the delivery pipe (1), and a first sleeve (4) is provided at the sleeve hole (3) toward the outside of the cold box (2); A floating sleeve body (5) connecting the first sleeve (4) and the conveying pipeline (1) along the axial direction of the conveying pipeline (1); A second sleeve (9) is arranged on the outside of the floating sleeve body (5); The waterproof plate (6) is located on the upper part of the second sleeve (9).

2. The penetration structure for the top of the cold box according to claim 1, characterized in that: The floating sleeve body (5) is in a wave shape.

3. The penetration structure for the top of a cold box according to claim 1, characterized in that: The diameter of the sleeve hole (3) is equal to the outer diameter of the first sleeve (4).

4. The penetration structure for the top of a cold box according to claim 1, characterized in that: The delivery pipeline (1) is an aluminum tube, and the first sleeve (4) is a carbon steel sleeve.

5. The penetration structure for the top of a cold box according to claim 1, characterized in that: The first sleeve (4) is provided with a first clamp (7), and the delivery pipeline (1) is provided with a second clamp (8).

6. The penetration structure for the top of a cold box according to claim 1, characterized in that: One end of the waterproof plate (6) is connected to an end of the second sleeve (9) away from the first sleeve (4), and the other end of the waterproof plate (6) is connected to the conveying pipeline (1).

7. The penetration structure for the top of a cold box according to claim 1, characterized in that: The second sleeve (9) is a stainless steel sleeve, and the waterproof plate (6) is an aluminum plate.

8. The penetration structure for the top of a cold box according to claim 1, characterized in that: The outer side of the second sleeve (9) is provided with: Fixed plate (91); A fixing screw (92) passes through the fixing plate (91) and the second sleeve (9).

9. The penetration structure for the top of a cold box according to claim 8, characterized in that: The fixing plate (91) is an aluminum ring plate, and the fixing screws (92) are self-tapping screws.

10. The penetration structure for the top of a cold box according to claim 1, characterized in that: The outer diameter of the second sleeve (9) is greater than the outer diameter of the first sleeve (4).

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