Air temperature vaporizer for liquid nitrogen production

Abstract

The utility model discloses air temperature formula vaporizer for liquid nitrogen preparation relates to vaporizer technical field. The air temperature formula vaporizer for liquid nitrogen preparation includes support frame, inlet and outlet air pipeline, heat exchange tube bundle and anti -frost mechanism, and the anti -frost mechanism includes deicing agent storage box, guide pipe, shower nozzle and pump group. The air temperature formula vaporizer for liquid nitrogen preparation through setting support frame, inlet and outlet air pipeline, heat exchange tube bundle and anti -frost mechanism, design deicing agent circulation, increase heat exchange, also reduce use cost, effectively solved the frost problem on the surface of heat exchange tube bundle, improved heat exchange efficiency, ensured the stable of liquid nitrogen vaporization, simultaneously, the optimization design of each component strengthened the stability and easy maintenance of equipment, prolonged the service life of equipment, reduced maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of vaporizer technology, specifically to an ambient temperature vaporizer for liquid nitrogen preparation. Background Technology

[0002] An ambient air vaporizer for liquid nitrogen preparation is a device that uses ambient air as a heat source to heat and vaporize liquid nitrogen into gaseous nitrogen through natural or forced convection. Its core advantage lies in requiring no additional energy source, relying solely on ambient temperature for vaporization, and featuring simple structure, low operating costs, and environmental friendliness and energy efficiency.

[0003] The main function of an ambient air vaporizer for liquid nitrogen preparation is to use ambient air as a heat source to heat and vaporize liquid nitrogen into gaseous nitrogen, thus meeting the demand for gaseous nitrogen in industrial production, medical cold chain, and other fields. In existing technologies, when operating in low-temperature environments, the surface of the heat exchange tube bundle in ambient air vaporizers is prone to frost or ice formation, leading to a significant decrease in heat exchange efficiency and potentially causing equipment failure and affecting normal operation. To address the shortcomings of existing technologies, this invention provides an ambient air vaporizer for liquid nitrogen preparation to solve the aforementioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an ambient temperature vaporizer for liquid nitrogen preparation. By setting up a support frame, inlet and outlet gas pipes, heat exchange tube bundles, and an anti-frost mechanism, and designing a de-icing agent circulation system, it increases heat exchange while reducing operating costs. It effectively solves the problem of frost formation on the surface of the heat exchange tube bundles, improves heat exchange efficiency, and ensures the stable vaporization of liquid nitrogen. At the same time, the optimized design of each component enhances the stability and maintainability of the equipment, extends its service life, and reduces maintenance costs.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an ambient temperature vaporizer for liquid nitrogen preparation, comprising a support frame, inlet and outlet gas pipes, heat exchange tube bundles, and an anti-frost mechanism; the anti-frost mechanism comprises a de-icing agent storage box, a conduit, a nozzle, and a pump set;

[0006] The support frame is used to support the entire carburetor;

[0007] Air inlet and outlet pipes are installed on the support frame;

[0008] The heat exchange tube bundle is mounted on the support frame and fixedly connected to the inlet and outlet air pipes;

[0009] An anti-frost mechanism is provided on the support frame and is used to prevent frost from forming on the surface of the heat exchange tube bundle;

[0010] The de-icing agent storage box is fixedly connected to the bottom of the support frame;

[0011] The conduit is located at the bottom of the de-icing agent storage box;

[0012] The nozzle is mounted on the support frame and located above the heat exchange tube bundle, and the conduit is connected to the nozzle;

[0013] The pump unit is mounted on the conduit.

[0014] Preferably, the bottom of the de-icing agent storage box is provided with a filter cylinder, and the filter element body is movably engaged inside the filter cylinder.

[0015] Preferably, the filter element body has a threaded opening on its side and a snap-fit ​​opening on its top for disassembly and assembly.

[0016] Preferably, the support frame is provided with a mounting rail for supporting the nozzle, the nozzle is provided with a sleeve that engages with the mounting rail, and the sleeve is provided with a locking unit.

[0017] Preferably, the locking unit includes:

[0018] A sleeve is provided on the sleeve;

[0019] The locking block is movable and engages with the sleeve and mounting rail.

[0020] Preferably, the sleeve has an adjusting block for supporting the locking block that is slidably connected inside, and a bidirectional screw is rotatably connected to the sleeve, the bidirectional screw being threadedly connected to the adjusting block.

[0021] Preferably, the sleeve is provided with a limiting rod for supporting the adjusting block.

[0022] Preferably, a reinforcing frame for supporting the inlet and outlet air pipes is fixedly connected to the support frame.

[0023] This utility model discloses an ambient temperature vaporizer for liquid nitrogen preparation, which has the following beneficial effects:

[0024] This ambient temperature vaporizer for liquid nitrogen preparation incorporates a support frame, inlet and outlet gas pipes, heat exchange tube bundles, and an anti-frost mechanism. It also features a de-icing agent circulation system, which increases heat exchange while reducing operating costs. This effectively solves the problem of frost formation on the heat exchange tube bundle surface, improves heat exchange efficiency, and ensures stable liquid nitrogen vaporization. Furthermore, the optimized design of each component enhances the equipment's stability and maintainability, extends its service life, and reduces maintenance costs. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a first-person perspective schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a second-view schematic diagram of the overall structure of this utility model;

[0028] Figure 3 This is a schematic diagram of the mounting rail structure of this utility model;

[0029] Figure 4 This is a schematic diagram of the structure of the reinforcement frame of this utility model;

[0030] Figure 5 This is a schematic diagram of the main body of the filter element of this utility model;

[0031] Figure 6 This is a disassembly diagram of the nozzle of this utility model;

[0032] Figure 7 This is a schematic diagram of the locking unit of this utility model.

[0033] In the diagram: 1. Support frame; 11. Reinforcing frame; 2. Inlet and outlet air pipes; 3. Heat exchanger tube bundle; 4. De-icing agent storage box; 41. Filter cartridge; 42. Filter element body; 421. Threaded joint; 422. Bayonet; 5. Guide tube; 6. Nozzle; 61. Sleeve; 7. Pump set; 8. Mounting rail; 9. Locking unit; 91. Sleeve base; 92. Locking block; 93. Adjusting block; 94. Two-way screw; 95. Limiting rod. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0035] This application provides an ambient temperature vaporizer for liquid nitrogen preparation, which solves the problem in the prior art where the surface of the heat exchange tube bundle is prone to frost or ice formation when the ambient temperature vaporizer is running in a low-temperature environment, resulting in a significant decrease in heat exchange efficiency and potentially causing equipment failure and affecting normal operation.

[0036] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0037] Example 1: This utility model embodiment discloses an ambient temperature vaporizer for liquid nitrogen preparation, according to the attached... Figure 1-7 As shown, it includes a support frame 1, an inlet and outlet air pipe 2, a heat exchange tube bundle 3, and an anti-frost mechanism; the anti-frost mechanism includes a de-icing agent storage box 4, a conduit 5, a nozzle 6, and a pump set 7;

[0038] The support frame 1 serves as the basic support structure for the entire vaporizer, bearing the weight of the equipment and external loads to ensure its stability and safety. It is also equipped with mounting rails 8 and reinforcing frames 11, used for mounting and fixing the nozzles 6 and supporting the inlet and outlet air pipes 2, respectively.

[0039] The inlet and outlet gas pipe 2 is used for the entry and exit of liquid nitrogen and vaporized gas. It is connected to the heat exchange tube bundle 3. The inlet and outlet gas pipe 2 and the heat exchange tube bundle 3 are fixed to the support frame 1 by flanges and other connecting parts. The heat exchange tube bundle 3 is further reinforced by the reinforcement frame 11 to ensure the stability and sealing of the pipe under the action of liquid nitrogen flow and pressure.

[0040] The heat exchange tube bundle 3 is the core component of the vaporizer. It consists of multiple heat exchange tubes. Liquid nitrogen flows inside the tubes, while air flows outside. Heat is exchanged through the tube walls, causing the liquid nitrogen to vaporize.

[0041] An anti-frost mechanism is installed on the support frame 1 and is used to prevent frost from forming on the surface of the heat exchange tube bundle 3;

[0042] The de-icing agent storage box 4 is fixed to the bottom of the support frame 1 and is used to store de-icing agent. A filter cartridge 41 is located at its bottom, with a filter element body 42 that is movably engaged inside. This filter cartridge body 42 filters the de-icing agent, preventing impurities from entering the nozzle 6 and causing blockage. The threaded joint 421 on the side of the filter element body 42 facilitates connection to the filter cartridge 41, while the snap-fit ​​joint 422 on the top facilitates the removal and replacement of the filter element.

[0043] One end of the conduit 5 is connected to the filter cartridge 41 at the bottom of the de-icing agent storage box 4, and the other end is connected to the nozzle 6 to deliver the filtered de-icing agent to the nozzle 6.

[0044] The nozzle 6 is mounted on the support frame 1 and located above the heat exchange tube bundle 3. It is connected to the mounting rail 8 via the sleeve 61 and fixed by the locking unit 9. It can spray the de-icing agent evenly on the surface of the heat exchange tube bundle 3 to prevent frost formation.

[0045] Pump unit 7 is installed on conduit 5 to provide power for the delivery of de-icing agent, enabling the de-icing agent to be smoothly delivered from de-icing agent storage box 4 to nozzle 6.

[0046] When operating this ambient air vaporizer for liquid nitrogen preparation, liquid nitrogen is first introduced into the heat exchange tube bundle 3 through the inlet / outlet gas pipe 2. The pump unit 7 is then started, allowing the de-icing agent in the de-icing agent storage box 4 to be delivered to the nozzle 6 through the conduit 5 and evenly sprayed onto the surface of the heat exchange tube bundle 3 to prevent frost formation. The liquid nitrogen gradually vaporizes within the heat exchange tube bundle 3 by absorbing heat from the air. Finally, the vaporized gas is discharged through the inlet / outlet gas pipe 2, completing the vaporization process. During equipment operation, the de-icing agent level and the spraying status of the nozzle 6 can be checked periodically, and de-icing agent can be replenished and the equipment maintained as needed.

[0047] Example 2: This utility model embodiment discloses an ambient temperature vaporizer for liquid nitrogen preparation, according to the attached... Figure 1-7 As shown, it includes a support frame 1, an inlet and outlet air pipe 2, a heat exchange tube bundle 3, and an anti-frost mechanism; the anti-frost mechanism includes a de-icing agent storage box 4, a conduit 5, a nozzle 6, and a pump set 7;

[0048] Support frame 1 is used to support the entire vaporizer;

[0049] The air inlet and outlet pipes 2 are installed on the support frame 1;

[0050] The heat exchange tube bundle 3 is mounted on the support frame 1 and is fixedly connected to the inlet and outlet air pipes 2;

[0051] An anti-frost mechanism is installed on the support frame 1 and is used to prevent frost from forming on the surface of the heat exchange tube bundle 3;

[0052] The de-icing agent storage box 4 is fixedly connected to the bottom of the support frame 1;

[0053] The conduit 5 is located at the bottom of the de-icing agent storage box 4;

[0054] The nozzle 6 is mounted on the support frame 1 and located above the heat exchange tube bundle 3, and the conduit 5 is connected to the nozzle 6.

[0055] Pump unit 7 is installed on conduit 5.

[0056] The support frame 1 is provided with a mounting rail 8 for supporting the nozzle 6, and the nozzle 6 is provided with a sleeve 61 that engages with the mounting rail 8. The sleeve 61 is provided with a locking unit 9.

[0057] Locking unit 9 includes:

[0058] Sleeve base 91 is provided on sleeve 61;

[0059] The card block 92 is movable and connected to the socket 91 and the mounting rail 8.

[0060] The sleeve 91 has an adjusting block 93 that is slidably connected inside to support the locking block 92. A bidirectional screw 94 is rotatably connected to the sleeve 91 and is threadedly connected to the adjusting block 93.

[0061] The sleeve 91 is provided with a limiting rod 95 for supporting the adjusting block 93.

[0062] A reinforcing frame 11 for supporting the inlet and outlet air pipes 2 is fixedly connected to the support frame 1.

[0063] The locking unit 9 is used to fix the nozzle 6 on the mounting rail 8. The locking unit 9 consists of a sleeve 91, a locking block 92, an adjusting block 93, a bidirectional screw 94, and a limiting rod 95. By adjusting the bidirectional screw 94, the adjusting block 93 can slide in the sleeve 91, thereby driving the locking block 92 to move and lock on the sleeve 91 and the mounting rail 8, so as to realize the fixing and disassembly of the nozzle 6.

[0064] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0065] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An ambient temperature vaporizer for liquid nitrogen preparation, characterized in that, include: Support frame (1) is used to support the entire vaporizer; Air inlet and outlet pipes (2) are installed on the support frame (1); The heat exchange tube bundle (3) is mounted on the support frame (1) and fixedly connected to the inlet and outlet air pipes (2); An anti-frost mechanism, disposed on the support frame (1) and used to prevent frost from forming on the surface of the heat exchange tube bundle (3), the anti-frost mechanism comprising: The de-icing agent storage box (4) is fixedly connected to the bottom of the support frame (1); The conduit (5) is located at the bottom of the de-icing agent storage box (4); The nozzle (6) is disposed on the support frame (1) and located above the heat exchange tube bundle (3), and the conduit (5) is connected to the nozzle (6); The pump unit (7) is installed on the conduit (5).

2. The ambient temperature vaporizer for liquid nitrogen preparation according to claim 1, characterized in that, The bottom of the de-icing agent storage box (4) is provided with a filter cylinder (41), and the filter element body (42) is movably connected inside the filter cylinder (41).

3. The ambient temperature vaporizer for liquid nitrogen preparation according to claim 2, characterized in that, The filter element body (42) has a threaded opening (421) on its side and a snap-fit ​​opening (422) on its top for disassembly and assembly.

4. The ambient temperature vaporizer for liquid nitrogen preparation according to claim 1, characterized in that, The support frame (1) is provided with a mounting rail (8) for supporting the nozzle (6), and the nozzle (6) is provided with a sleeve (61) that engages with the mounting rail (8), and the sleeve (61) is provided with a locking unit (9).

5. The ambient temperature vaporizer for liquid nitrogen preparation according to claim 4, characterized in that, The locking unit (9) includes: A sleeve (91) is disposed on the sleeve (61); The locking block (92) is movably engaged with the sleeve (91) and the mounting rail (8).

6. The ambient temperature vaporizer for liquid nitrogen preparation according to claim 5, characterized in that, The sleeve (91) has an adjusting block (93) for supporting the locking block (92) slidably connected inside. The sleeve (91) has a bidirectional screw (94) rotatably connected to it, and the bidirectional screw (94) is threadedly connected to the adjusting block (93).

7. The ambient temperature vaporizer for liquid nitrogen preparation according to claim 6, characterized in that, The sleeve (91) is provided with a limiting rod (95) for supporting the adjusting block (93).

8. The ambient temperature vaporizer for liquid nitrogen preparation according to claim 1, characterized in that, A reinforcing frame (11) for supporting the inlet and outlet air pipes (2) is fixedly connected to the support frame (1).

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