Nitrogen liquefaction device convenient to maintain

By introducing storage tank structures, pipeline docking structures, and pipeline connection structures into the nitrogen liquefaction unit, combined with clamping strips and rotating nuts, the problem of inconvenient maintenance of existing units has been solved, and a nitrogen liquefaction unit with rapid docking and good sealing performance has been realized.

CN223579682UActive Publication Date: 2025-11-21HANGZHOU CHENRUI AIR SEPARATION EQUIP MFG
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Patent Information

Application Number
CN202520343553.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2025-11-21
Estimated Expiration
2035-02-28

AI Technical Summary

Technical Problem

In the maintenance of existing nitrogen liquefaction equipment, most of the pipes connecting the components are fixed with screws, which makes disassembly and maintenance inconvenient, time-consuming and labor-intensive.

Method used

It adopts a storage tank structure, a pipe docking structure, and a pipe connection structure. The combination design of clamps and rotating nuts enables quick docking and ensures sealing. The rotating nuts are used to fix the pipes by pressing, which simplifies the disassembly process.

Benefits of technology

It enables rapid docking and excellent sealing of the nitrogen liquefaction unit, while simplifying the disassembly and maintenance process and improving maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a nitrogen liquefying device convenient to maintain, which comprises a storage tank structure, a pipeline butt joint structure and a pipeline connecting structure, the pipeline connecting structure is fixedly arranged on the surface of the storage tank structure, and the pipeline butt joint structure is fixedly connected on the surface of the pipeline connecting structure in a butt joint mode. According to the nitrogen liquefying device convenient to maintain, the pipeline butt joint structure is arranged, the pipeline butt joint structure is arranged, the multiple layers of sealing structures are arranged on the surface, the pipeline butt joint structure is connected with the clamping strip in a screwed mode, and the clamping strip is movably arranged on the surface of the pipeline connecting structure in a sleeved mode. Butt joint of the pipeline butt joint structure is facilitated by arranging the connecting mounting pipe, the pipeline butt joint structure is reinforced, pipeline disengagement is avoided, the clamping strips are rotated to the inner side after butt joint, the clamping strips are extruded by the rotating nuts to be in butt joint with the surfaces of the first clamping grooves and the second clamping grooves to be elaborately fixed and locked, and only the rotating nuts need to be loosened to disengage the pipeline butt joint structure during disassembly.
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Description

TECHNICAL FIELD

[0001] The utility model relates to nitrogen liquefaction field especially, and relates to a nitrogen liquefaction device convenient to maintain. BACKGROUND

[0002] The nitrogen liquefaction device is a kind of equipment that gaseous nitrogen is converted into liquid nitrogen by low temperature cooling, is widely used in industry, medical treatment, scientific research etc., and liquid nitrogen is used as refrigerant, protective gas, frozen storage medium etc. due to its extremely low temperature and inert characteristics.The core function of nitrogen liquefaction device is to separate and liquefy nitrogen in air through a series of physical processes to meet the needs of different fields.

[0003] Most of the pipelines connected by the components of the existing device are screwed and locked, which is troublesome and time-consuming and laborious when disassembled for later maintenance, thus a nitrogen liquefaction device convenient to maintain is provided. UTILITY MODEL CONTENT

[0004] The main purpose of the utility model is to provide a nitrogen liquefaction device convenient to maintain, which can effectively solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] A nitrogen liquefaction device convenient to maintain, comprising a storage tank structure, a pipeline butt joint structure and a pipeline connection structure, the surface of the storage tank structure is fixedly provided with the pipeline connection structure, the surface of the pipeline connection structure is fixedly provided with the pipeline butt joint structure, the surface of the pipeline connection structure is movably provided with a clamping strip, and the surface of the pipeline connection structure is spirally connected with a rotating nut.

[0007] Preferably, the storage tank structure comprises a condensing tank, a butt joint and a fixing frame, the top surface of the condensing tank is fixedly provided with the butt joint, and the bottom surface of the condensing tank is fixedly provided with the fixing frame.

[0008] Preferably, the pipeline butt joint structure comprises a pipe, a clamping groove one, a sealing gasket and a sealing ring, the surface of the pipe is fixedly provided with the clamping groove one, the surface of the pipe is fixedly provided with the sealing gasket, and the surface of the pipe is fixedly provided with the sealing ring.

[0009] Preferably, the pipeline connection structure comprises a connection pipe, a butt joint ring, a screw rod, a clamping groove two and a mounting disc, one end surface of the connection pipe is fixedly connected with the butt joint ring, the surface of the butt joint ring is fixedly connected with the screw rod, the surface of the butt joint ring is fixedly provided with the clamping groove two, and the other end surface of the connection pipe is fixedly connected with the mounting disc.

[0010] Preferably, the mounting disc of the pipeline connection structure is connected with the butt joint, and the pipe of the pipeline butt joint structure is fixedly connected with the butt joint ring.

[0011] Preferably, the rotating nut moves on the surface of the screw rod, the rotating nut extrudes the clamping strip downward, and the downward movement of the clamping strip is abutted to the surface of the first clamping groove and the second clamping groove.

[0012] Compared with the prior art, the nitrogen liquefaction device has the following beneficial effects:

[0013] The nitrogen liquefaction device is convenient to maintain, the storage tank structure is used for liquefaction storage of nitrogen, and can be connected and fixed with other components, the pipeline butt joint structure is convenient for butt joint of the pipeline, the surface is provided with a plurality of sealing structures, so that the butt joint is fast and the sealing property is guaranteed, the butt joint of the pipeline butt joint structure is facilitated by the butt joint pipe, and the butt joint pipe is reinforced, so that the pipeline is prevented from being separated, the clamping strip is rotated to the inner side after butt joint, the clamping strip is fixed and locked by the rotating nut, and the pipeline butt joint structure is separated only by loosening the rotating nut during disassembly. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a whole schematic view of the nitrogen liquefaction device convenient to maintain.

[0015] Figure 2 It is a storage tank structure schematic view of the nitrogen liquefaction device convenient to maintain.

[0016] Figure 3 It is a pipeline butt joint structure schematic view of the nitrogen liquefaction device convenient to maintain.

[0017] Figure 4 It is a pipeline butt joint structure sectional view of the nitrogen liquefaction device convenient to maintain.

[0018] Figure 5 It is a pipeline butt joint structure sectional view of the nitrogen liquefaction device convenient to maintain.

[0019] In the figure: 1, storage tank structure; 101, condensing tank; 102, butt joint; 103, fixing frame; 2, pipeline butt joint structure; 201, pipe; 202, first clamping groove; 203, sealing gasket; 204, sealing ring; 3, pipeline butt joint structure; 301, butt joint pipe; 302, butt joint ring; 303, screw rod; 304, second clamping groove; 305, mounting disc; 4, rotating nut; 5, clamping strip. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described in combination with specific implementation manners.

[0021] As Figures 1-5 The application discloses a nitrogen liquefying device convenient to maintain, which comprises a storage tank structure 1, a pipeline butt joint structure 2 and a pipeline connection structure 3, the surface of the storage tank structure 1 is fixedly provided with the pipeline connection structure 3, the surface of the pipeline connection structure 3 is fixedly butt jointed with the pipeline butt joint structure 2, the surface of the pipeline connection structure 3 is movably sleeved with a clamping strip 5, and the surface of the pipeline connection structure 3 is screw-connected with a rotating nut 4; the storage tank structure 1 is used for storing liquid for nitrogen liquefaction, the pipeline butt joint structure 2 and the pipeline connection structure 3 are mutually inserted and butt jointed, and the rotating nut 4 and the clamping strip 5 are used for reinforcement.

[0022] Further, the storage tank structure 1 comprises a condensing tank 101, a butt joint 102 and a fixing frame 103, the top end surface of the condensing tank 101 is fixedly provided with the butt joint 102, and the bottom end surface of the condensing tank 101 is fixedly provided with the fixing frame 103; the storage tank structure 1 is part of the nitrogen liquefying device.

[0023] Further, the pipeline butt joint structure 2 comprises a pipe 201, a clamping groove 202, a sealing gasket 203 and a sealing ring 204, the surface of the pipe 201 is fixedly provided with the clamping groove 202, the surface of the pipe 201 is fixedly provided with the sealing gasket 203, and the surface of the pipe 201 is fixedly sleeved with the sealing ring 204; the sealing gasket 203 and the sealing ring 204 are sleeved layer by layer to improve the sealing property.

[0024] Further, the pipeline connection structure 3 comprises a connection pipe 301, a butt joint ring 302, a screw rod 303, a clamping groove 304 and a mounting disc 305, one end surface of the connection pipe 301 is fixedly connected with the butt joint ring 302, the surface of the butt joint ring 302 is fixedly connected with the screw rod 303, the surface of the butt joint ring 302 is fixedly provided with the clamping groove 304, and the other end surface of the connection pipe 301 is fixedly connected with the mounting disc 305; the screw rod 303 is used for moving the rotating nut 4 and the clamping strip 5.

[0025] Further, the mounting disc 305 of the pipeline connection structure 3 is mounted and connected with the butt joint 102, and the pipe 201 of the pipeline butt joint structure 2 is fixedly butt jointed with the butt joint ring 302; the butt joint ring 302 limits the shaking of the pipe 201.

[0026] Further, the rotating nut 4 moves on the surface of the screw rod 303, the rotating nut 4 downwardly extrudes the clamping strip 5, and the clamping strip 5 moves downwardly to be butt jointed to the surfaces of the clamping groove 202 and the clamping groove 304; the connecting structure of the device structure pipeline is convenient for butt joint installation and also convenient for dismounting and maintaining.

[0027] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A nitrogen liquefier convenient for maintenance, characterized by: Including storage tank structure (1), pipeline butt joint structure (2) and pipeline connection structure (3), the surface of the storage tank structure (1) is fixedly provided with the pipeline connection structure (3), the surface of the pipeline connection structure (3) is fixedly connected with the pipeline butt joint structure (2), the surface of the pipeline connection structure (3) is movably provided with the clamping strip (5), and the surface of the pipeline connection structure (3) is spirally connected with the rotating nut (4).

2. A convenient maintenance nitrogen liquefying device according to claim 1, characterized in that: The storage tank structure (1) comprises a condensing tank (101), a butt joint (102) and a fixing frame (103), the top surface of the condensing tank (101) is fixedly provided with the butt joint (102), and the bottom surface of the condensing tank (101) is fixedly provided with the fixing frame (103).

3. A convenient maintenance nitrogen liquefying device according to claim 2, characterized in that: The pipeline butt joint structure (2) comprises a pipe (201), a clamping groove (202), a sealing pad (203) and a sealing ring (204), the surface of the pipe (201) is fixedly provided with the clamping groove (202), the surface of the pipe (201) is fixedly provided with the sealing pad (203), and the surface of the pipe (201) is fixedly provided with the sealing ring (204).

4. A convenient maintenance nitrogen liquefying device according to claim 3, characterized in that: The pipeline connection structure (3) comprises a connection pipe (301), a butt joint ring (302), a screw rod (303), a clamping groove (304) and a mounting disc (305), one end surface of the connection pipe (301) is fixedly connected with the butt joint ring (302), the surface of the butt joint ring (302) is fixedly connected with the screw rod (303), the surface of the butt joint ring (302) is fixedly provided with the clamping groove (304), and the other end surface of the connection pipe (301) is fixedly connected with the mounting disc (305).

5. A convenient maintenance nitrogen liquefying device according to claim 4, characterized in that: The mounting disc (305) of the pipeline connection structure (3) is installed and connected with the butt joint (102), and the pipe (201) of the pipeline butt joint structure (2) is fixedly connected with the butt joint ring (302).

6. A convenient maintenance nitrogen liquefying device according to claim 5, characterized in that: The rotating nut (4) moves on the surface of the screw rod (303), the rotating nut (4) downwardly extrudes the clamping strip (5), and the clamping strip (5) is downwardly moved and connected to the surfaces of the clamping groove (202) and the clamping groove (304).