Liquid oxygen evaporator capable of automatically adjusting liquid oxygen level

Abstract

The utility model relates to the technical field of air separation towers, and discloses a liquid oxygen evaporator capable of automatically adjusting the liquid level of liquid oxygen. The liquid oxygen evaporator capable of automatically adjusting the liquid oxygen level comprises a limiting pipe, a connecting ring is fixedly installed at the front end of the limiting pipe, a connecting frame is fixedly installed in the connecting ring, a fixing shaft is installed in the center of the connecting frame in a penetrating mode, and a limiting column is installed on the outer side of the fixing shaft in a penetrating mode; a limiting frame is fixedly installed in a limiting pipe, a limiting column is installed in the center of a fixing shaft in a penetrating mode and fixedly connected with the fixing shaft, oxygen can generate rotating vortexes when passing through paddles, meanwhile, an adapter pipe is installed in a limiting bearing in a penetrating mode, and liquid oxygen can be sprayed out after being atomized through an atomization nozzle. The adapter tube is driven to rotate through the counter-acting force when the liquid oxygen is sprayed out, and the dispersion range of the liquid oxygen is enlarged through the centrifugal force of the liquid oxygen during rotation, so that the oxygen vortex drives the vaporific liquid oxygen to rotate, and the evaporation efficiency of the liquid oxygen is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air separation towers, in particular to a liquid oxygen evaporator capable of automatically adjusting the liquid oxygen level. Background Art

[0002] Liquid oxygen air separation equipment is primarily based on air separation technology. It converts air into liquid form through a compression cycle followed by deep freezing. Distillation then gradually separates the liquid air into inert gases such as oxygen, nitrogen, and argon. This process involves multiple systems and components, including compression, pre-cooling, purification, heat exchange, product delivery, expansion refrigeration, distillation towers, and liquid pumps. The liquid oxygen evaporator vaporizes the safely discharged liquid oxygen extracted from the condenser evaporator and incorporates it into the pipeline oxygen supply.

[0003] The existing referenceable Chinese utility model patent has announcement number CN214665576U, which discloses a liquid oxygen jet evaporator for an air separation device, comprising a cylinder, on which a plurality of thermometers, branch pipes, and ejectors are respectively provided, wherein the branch pipes and ejectors are arranged above the cylinder, and the thermometers are respectively arranged above and below the cylinder, and the ejector is composed of a bend pipe running through the cylinder, a first flange assembly, and a nozzle, wherein the bend pipe is provided with a connecting sleeve at the inlet end on one side outside the upper part of the cylinder, and the connecting sleeve is connected and fixed to the second flange assembly by screws, and a nozzle connector is provided at the outlet end on one side inside the cylinder, and the nozzle connector is rotatably fixed to the nozzle by a thread, and a gasket is provided between the nozzle connector and the nozzle. The utility model has the characteristics of simple structure, low cost, easy maintenance, safety and reliability.

[0004] Existing liquid oxygen jet evaporators generally use a nozzle to atomize liquid oxygen to mix it with room-temperature oxygen, increasing the contact area between the liquid oxygen and the room-temperature oxygen, causing the liquid oxygen to absorb heat and vaporize. Due to the influence of the liquid oxygen's own gravity, after the liquid oxygen is atomized, the liquid oxygen droplets will fall into the oxygen pipeline under the action of gravity and converge to cause liquid oxygen accumulation. At the same time, the atomization structure of the existing liquid oxygen jet evaporator can cause the liquid oxygen to be sprayed in one direction, and the liquid oxygen cannot be fully mixed with the room-temperature oxygen inside the pipeline, affecting the evaporation efficiency. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the shortcomings of the existing technology, the utility model provides a liquid oxygen evaporator that can automatically adjust the liquid oxygen level, which has the advantages of improving evaporation efficiency and avoiding liquid oxygen accumulation, thereby solving the above technical problems.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: A liquid oxygen evaporator capable of automatically adjusting the liquid oxygen level, comprising: a limiting tube, a connecting ring fixedly installed at the front end of the limiting tube, a connecting frame fixedly installed inside the connecting ring, a fixed shaft inserted through the center of the connecting frame, a limiting column inserted through the outside of the fixed shaft, a blade fixedly installed outside the limiting column, a limiting frame fixedly installed inside the limiting tube, a limiting bearing fixedly installed inside the limiting frame, a limiting ring fixedly installed at the rear end of the limiting tube, a metal mesh fixedly installed inside the limiting ring, a controller fixedly installed above the limiting tube, a delivery pipe inserted through the inside of the limiting tube, a solenoid valve fixedly installed at the upper end of the delivery pipe, a connecting pipe fixedly installed above the solenoid valve, a rotary joint fixedly installed at the lower end of the delivery pipe, a transfer pipe fixedly installed at the rear end of the rotary joint, a bent pipe fixedly installed on the outside of the transfer pipe, and an atomizing nozzle inserted through the end of the bent pipe; the connecting frame can limit the position of the fixed shaft.

[0009] As an optimal technical solution of the present invention, the outer side surface of the connecting ring is fixedly connected to the inner wall of the limiting tube, the connecting frame is in a "cross" shape, and the center of the connecting frame is provided with an open hole structure that is engaged with the fixed shaft. The connecting frame is symmetrically installed on the front and rear sides of the connecting ring with the center of the connecting ring as a reference; the connecting ring can limit the position of the connecting frame and the outer edge of the blade.

[0010] As the preferred technical solution of the present invention, the fixed shaft is installed between the connecting frames in an interlaced manner, the surface of the limiting column is provided with an opening structure distributed in a ring shape, the limiting column is interlaced and installed in the center of the fixed shaft, and forms a fixed connection with the fixed shaft; the fixed shaft can limit the position of the limiting column.

[0011] As an optimal technical solution of the present invention, the blade is installed in a ring shape on the outside of the limiting column with the center of the limiting column as the reference, and the outer edge of the blade is fixedly connected to the inner wall of the connecting ring; the blade can facilitate the rotation of oxygen to generate vortex.

[0012] As an optimal technical solution of the present invention, the delivery pipe has an "L"-shaped structure, the horizontal part of the delivery pipe is located at the center of the limiting pipe and points to the metal mesh, and the vertical part of the delivery pipe passes through the limiting pipe; the delivery pipe can deliver liquid oxygen to the inside of the limiting pipe.

[0013] As a preferred technical solution of the present invention, the transfer tube is rotatably connected to the delivery pipe via a rotary joint, and the rear end of the transfer tube is in a cross shape; the transfer tube can facilitate the entry of liquid oxygen into the elbow.

[0014] As a preferred technical solution of the present invention, the bending angle of the elbow is forty-five degrees, and the elbow is installed at the end of the "cross" branch of the adapter tube at an angle of thirty degrees; the elbow can limit the direction of the atomizing nozzle.

[0015] Compared with the prior art, the present invention provides a liquid oxygen evaporator that can automatically adjust the liquid oxygen level, which has the following beneficial effects:

[0016] 1. The utility model discloses a method for making a cam that is fixed on the outer side of the cam and the outer edge of the cam are fixedly connected to the inner wall of the connecting ring. The center of the connecting frame is provided with an opening structure that is engaged with the fixed shaft. The connecting frame is symmetrically installed on the front and rear sides of the connecting ring with the center of the connecting ring as the reference. The fixed shaft is installed between the connecting frames in an interlaced manner. The surface of the limiting column is provided with an opening structure distributed in an annular manner. The limiting column is interlaced and installed in the center of the fixed shaft and is fixedly connected with the fixed shaft. When oxygen passes through the blade, a rotating vortex is generated. At the same time, the transfer pipe is interlaced and installed in the interior of the limiting bearing. The atomizing nozzle can atomize the liquid oxygen and then spray it out. The reaction force when the liquid oxygen is sprayed drives the transfer pipe to rotate. The centrifugal force of the liquid oxygen during rotation increases the distribution range of the liquid oxygen, so that the oxygen vortex drives the mist liquid oxygen to rotate, thereby improving the evaporation efficiency of the liquid oxygen.

[0017] 2. The utility model is provided with a metal mesh, which is fixedly installed on the rear side of the limiting tube through a limiting ring, and the metal mesh is located on the rear side of the atomizing nozzle. When liquid oxygen is sprayed in a mist form through the atomizing nozzle, it will move backward under the drive of oxygen and evaporate in the process of moving backward. The unevaporated liquid oxygen droplets will be captured by the metal mesh, and oxygen will continue to blow towards the liquid oxygen attached to the surface of the metal mesh. This method can avoid the rapid accumulation of liquid oxygen, resulting in a reduction in the contact area with oxygen, and the generation of liquid accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the limiting tube of the utility model;

[0020] Figure 3 This is a schematic diagram of the installation structure of the rotary joint of the utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the atomizing nozzle of the utility model;

[0022] Among them: 1. Limiting tube; 11. Connecting ring; 12. Connecting frame; 13. Fixed shaft; 14. Limiting column; 15. Paddle; 16. Limiting frame; 17. Limiting bearing; 18. Limiting ring; 19. Metal mesh; 110. Controller; 2. Delivery pipe; 21. Solenoid valve; 22. Connecting pipe; 23. Rotary joint; 24. Adapter pipe; 25. Elbow pipe; 26. Atomizing nozzle. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0024] In the description of this utility model, unless otherwise specified, "plurality" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific direction, be constructed, or operate in a specific direction, and therefore should not be construed as limiting this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0026] See also Figure 1 - Figure 4 In this embodiment, a liquid oxygen evaporator that can automatically adjust the liquid oxygen level includes: a limiting tube 1, a connecting ring 11 is fixedly installed at the front end of the limiting tube 1, a connecting frame 12 is fixedly installed inside the connecting ring 11, a fixed shaft 13 is inserted through the center of the connecting frame 12, a limiting column 14 is inserted through the outside of the fixed shaft 13, a blade 15 is fixedly installed on the outside of the limiting column 14, a limiting frame 16 is fixedly installed inside the limiting tube 1, a limiting bearing 17 is fixedly installed inside the limiting frame 16, a limiting ring 18 is fixedly installed at the rear end of the limiting tube 1, a metal mesh 19 is fixedly installed inside the limiting ring 18, and a controller 110 is fixedly installed above the limiting tube 1.

[0027] The outer side surface of the connecting ring 11 is fixedly connected to the inner wall of the limiting tube 1, and the connecting frame 12 is a "cross" structure. The center of the connecting frame 12 is provided with an open hole structure that is embedded with the fixed shaft 13. The connecting frame 12 is symmetrically installed on the front and rear sides of the connecting ring 11 with the center of the connecting ring 11 as the reference.

[0028] The fixed shaft 13 is installed between the connecting frames 12 in an interlaced manner. The surface of the limiting column 14 is provided with an annularly distributed opening structure. The limiting column 14 is interlaced and installed in the center of the fixed shaft 13 and forms a fixed connection with the fixed shaft 13.

[0029] The blade 15 is annularly mounted on the outside of the limiting post 14 with the center of the limiting post 14 as a reference, and the outer edge of the blade 15 is fixedly connected to the inner wall of the connecting ring 11 .

[0030] Specifically, the limiting tube 1 can limit the flow direction of oxygen, the connecting ring 11 can limit the position of the connecting frame 12 and the outer edge of the blade 15, the connecting frame 12 can limit the position of the fixed shaft 13, the fixed shaft 13 can limit the position of the limiting column 14, the limiting column 14 can fix the position of the internal edge of the blade 15, the blade 15 can facilitate the rotation of oxygen to generate vortex, the limiting frame 16 can limit the position of the limiting bearing 17, the limiting bearing 17 can facilitate the rotation of the transfer tube 24, the limiting ring 18 can limit the position of the metal mesh 19, and the metal mesh 19 can limit the position of the liquid oxygen mist.

[0031] A delivery pipe 2 is installed inside the limiting pipe 1, a solenoid valve 21 is fixedly installed on the upper end of the delivery pipe 2, a connecting pipe 22 is fixedly installed above the solenoid valve 21, a rotary joint 23 is fixedly installed on the lower end of the delivery pipe 2, a transfer pipe 24 is fixedly installed on the rear end of the rotary joint 23, a bent pipe 25 is fixedly installed on the outside of the transfer pipe 24, and an atomizing nozzle 26 is installed on the end of the bent pipe 25.

[0032] The delivery pipe 2 is in an “L”-shaped structure. The horizontal portion of the delivery pipe 2 is located at the center of the limiting pipe 1 and points toward the metal mesh 19 . The vertical portion of the delivery pipe 2 passes through the limiting pipe 1 .

[0033] The transfer tube 24 is rotatably connected to the delivery tube 2 via the rotary joint 23 , and the rear end of the transfer tube 24 is in a cross shape.

[0034] The bending angle of the elbow 25 is 45 degrees, and the elbow 25 is installed at the end of the cross-shaped branch of the transfer tube 24 at a turning angle of 30 degrees.

[0035] Specifically, the delivery pipe 2 can deliver liquid oxygen to the inside of the limiting pipe 1, the solenoid valve 21 can limit the communication state between the delivery pipe 2 and the connecting pipe 22, the rotary joint 23 can facilitate the rotation of the transfer pipe 24, and the transfer pipe 24 is inserted and installed inside the limiting bearing 17. The transfer pipe 24 can facilitate the entry of liquid oxygen into the inside of the bent pipe 25, and the bent pipe 25 can limit the direction of the atomizing nozzle 26. The atomizing nozzle 26 can atomize the liquid oxygen and then spray it out, and the reaction force when the liquid oxygen is sprayed drives the transfer pipe 24 to rotate.

[0036] When in use, the blade 15 is annularly installed on the outside of the limiting column 14 with the center of the limiting column 14 as the reference, and the outer edge of the blade 15 is fixedly connected to the inner wall of the connecting ring 11, and the center of the connecting frame 12 is provided with an open hole structure that is engaged with the fixed shaft 13. The connecting frame 12 is symmetrically installed on the front and rear sides of the connecting ring 11 with the center of the connecting ring 11 as the reference, and the fixed shaft 13 is installed between the connecting frames 12 in an interlaced manner. The surface of the limiting column 14 is provided with an open hole structure distributed in an annular shape, and the limiting column 14 is interlaced and installed in the center of the fixed shaft 13, and is fixedly connected to the fixed shaft 13. When oxygen passes through the blade 15, a rotating vortex will be generated. At the same time, the transfer pipe 24 is interlaced and installed in the interior of the limiting bearing 17. The atomizing nozzle 26 can atomize the liquid oxygen and then spray it out, and the reaction force when the liquid oxygen is sprayed drives the transfer pipe 24 Rotation, the centrifugal force of liquid oxygen during rotation increases the distribution range of liquid oxygen, so that the oxygen vortex drives the mist liquid oxygen to rotate, thereby improving the evaporation efficiency of liquid oxygen. The metal mesh 19 is fixedly installed on the rear side of the limiting tube 1 through the limiting ring 18, and the metal mesh 19 is located on the rear side of the atomizing nozzle 26. When the liquid oxygen is sprayed in a mist form through the atomizing nozzle 26, it will move backward under the drive of oxygen and evaporate in the process of moving backward. The unevaporated liquid oxygen droplets will be captured by the metal mesh 19, and oxygen will continue to blow towards the liquid oxygen attached to the surface of the metal mesh 19. This method can avoid the rapid accumulation of liquid oxygen, resulting in a reduction in the contact area with oxygen, and the occurrence of liquid accumulation. The controller 110 is connected to the liquid level gauge inside the liquid oxygen storage tank. The liquid oxygen is discharged after the liquid level inside the liquid oxygen storage tank reaches a threshold to adjust the liquid level of the liquid oxygen inside the storage tank.

[0037] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid oxygen evaporator capable of automatically adjusting the liquid oxygen level, characterized in that: include: A limiting tube (1) is provided, wherein a connecting ring (11) is fixedly installed at the front end of the limiting tube (1), a connecting frame (12) is fixedly installed inside the connecting ring (11), a fixed shaft (13) is inserted through the center of the connecting frame (12), a limiting column (14) is inserted through the outside of the fixed shaft (13), a blade (15) is fixedly installed on the outside of the limiting column (14), a limiting frame (16) is fixedly installed inside the limiting tube (1), a limiting bearing (17) is fixedly installed inside the limiting frame (16), a limiting ring (18) is fixedly installed at the rear end of the limiting tube (1), and the limiting ring (18) is fixedly installed at the rear end of the limiting tube (1). A metal mesh (19) is fixedly installed inside, a controller (110) is fixedly installed above the position limiting tube (1), a delivery tube (2) is inserted and installed inside the position limiting tube (1), a solenoid valve (21) is fixedly installed at the upper end of the delivery tube (2), a connecting tube (22) is fixedly installed above the solenoid valve (21), a rotary joint (23) is fixedly installed at the lower end of the delivery tube (2), a transfer tube (24) is fixedly installed at the rear end of the rotary joint (23), a bent tube (25) is fixedly installed on the outer side of the transfer tube (24), and an atomizing nozzle (26) is inserted and installed at the end of the bent tube (25).

2. The liquid oxygen evaporator capable of automatically adjusting the liquid oxygen level according to claim 1, characterized in that: The outer side surface of the connecting ring (11) is fixedly connected to the inner wall of the limiting tube (1); the connecting frame (12) is in a "cross"-shaped structure; an opening structure engaged with the fixed shaft (13) is provided at the center of the connecting frame (12); the connecting frame (12) is symmetrically installed on the front and rear sides of the connecting ring (11) with the center of the connecting ring (11) as a reference.

3. The liquid oxygen evaporator capable of automatically adjusting the liquid oxygen level according to claim 1, characterized in that: The fixed shaft (13) is installed between the connecting frames (12) in an interpenetrating manner, and the surface of the limiting column (14) is provided with an annularly distributed opening structure. The limiting column (14) is interpenetratingly installed in the center of the fixed shaft (13) and is fixedly connected to the fixed shaft (13).

4. The liquid oxygen evaporator capable of automatically adjusting the liquid oxygen level according to claim 1, characterized in that: The blade (15) is annularly mounted on the outside of the limiting column (14) with the center of the limiting column (14) as a reference, and the outer edge of the blade (15) is fixedly connected to the inner wall of the connecting ring (11).

5. The liquid oxygen evaporator capable of automatically adjusting the liquid oxygen level according to claim 1, characterized in that: The delivery pipe (2) has an "L"-shaped structure, the horizontal portion of the delivery pipe (2) is located at the center of the limiting pipe (1) and points toward the metal mesh (19), and the vertical portion of the delivery pipe (2) passes through the limiting pipe (1).

6. The liquid oxygen evaporator capable of automatically adjusting the liquid oxygen level according to claim 1, characterized in that: The transfer tube (24) is rotatably connected to the delivery tube (2) via a rotary joint (23), and the rear end of the transfer tube (24) is in a "cross" shape.

7. The liquid oxygen evaporator capable of automatically adjusting the liquid oxygen level according to claim 1, characterized in that: The bending angle of the curved pipe (25) is 45 degrees, and the curved pipe (25) is installed at the end of the "cross"-shaped branch of the transfer pipe (24) at a turning angle of 30 degrees.

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