Fractionating tower for preparing liquid oxygen

Abstract

The utility model belongs to the technical field of liquid oxygen preparation, and particularly relates to a liquid oxygen preparation fractionating tower which comprises an upper tower, a lower tower arranged at the bottom of the upper tower, supporting legs arranged on one side below the front side of the lower tower, mounting components arranged at the bottom ends of the supporting legs, a liquid oxygen outlet arranged below one side of the lower tower, and a pipeline arranged on one side of the liquid oxygen outlet. According to the utility model, through the mutual cooperation of the mounting assembly, the mounting plate, the threaded holes, the bolts, the sliding grooves, the sliding blocks, the springs, the clamping plates, the hydraulic cylinders, the supporting plates and the mounting blocks, when the fractionating tower is mounted, the mounting accuracy of the lower tower can be realized by controlling the machining accuracy of the lower surface of the mounting block and the upper surface of the mounting plate, so that the perpendicularity of the lower tower is guaranteed; through mutual cooperation of the liquid oxygen outlet, the pipeline, the heat insulation gas cylinder and the valve, the problem that after power failure occurs, the cooling capacity in the fractionating tower is insufficient, pressurization and cooling are needed through an air compressor, and the period of restarting of the fractionating tower is long is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid oxygen preparation, in particular to a liquid oxygen preparation fractionation tower. Background Art

[0002] Oxygen is a substance that all living organisms on Earth depend on for survival. It has very active chemical properties and can easily combine with other substances to form oxides. Therefore, it is widely used in metallurgy, chemical industry, and defense industry. In the preparation of liquid oxygen, a distillation tower is used to gradually separate the components of air that has been cooled to a nearly liquid state, thereby obtaining high-purity oxygen, nitrogen and other gases.

[0003] The prior art has the following problems:

[0004] 1. The existing liquid oxygen preparation fractionation tower is mainly composed of an upper tower and a lower tower. The upper tower does not have a very high requirement for verticality. The main cooling is a plate-fin structure, and the lower tower has a plate structure. This requires a stricter verticality, generally about 0.5 thousandths of a percent verticality, to ensure that the liquid is evenly distributed on the plate. Otherwise, it is easy to cause liquid suspension and substandard purity. This also leads to the failure of the fractionation tower to achieve a good installation accuracy for the lower tower during installation, which indirectly reduces the practicality of the fractionation tower and is inconvenient to promote;

[0005] 2. In the existing liquid oxygen preparation distillation tower, after a power outage, the cooling capacity in the distillation tower is insufficient and an air compressor is required to increase pressure and cool it down. This also makes the restart cycle of the distillation tower longer, indirectly reducing the work efficiency. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a liquid oxygen preparation distillation tower, which solves the problems that the existing distillation tower cannot well achieve the accuracy of the installation of the lower tower during installation, and that after a power outage, the cooling capacity in the distillation tower is insufficient and an air compressor is required to increase pressure and cool the tower, resulting in a long restart cycle for the distillation tower.

[0007] To achieve the above object, the utility model provides the following technical solutions: a liquid oxygen preparation fractionation tower, comprising an upper tower, a lower tower is arranged at the bottom of the upper tower, a support leg is arranged at one side below the front of the lower tower, a mounting assembly is arranged at the bottom end of the support leg, a liquid oxygen outlet is arranged at the bottom of one side of the lower tower, a pipeline is arranged at one side of the liquid oxygen outlet, an insulated gas cylinder is arranged at the bottom end of the pipeline, and a valve is arranged at one end of the insulated gas cylinder;

[0008] The mounting assembly includes a mounting plate, a threaded hole is provided on one side of the top of the mounting plate, a bolt is arranged inside the threaded hole, a slide groove is provided on the mounting plate away from the threaded hole, a slider is arranged inside the slide groove, a spring is provided on one side of the slider, a clamping plate is provided on the top of the slider, a hydraulic cylinder is provided on one side of the clamping plate, a support plate is provided at one end of the hydraulic cylinder, and a mounting block is provided in the middle of the top of the mounting plate.

[0009] As a preferred technical solution of the utility model, the support legs are mounted on the mounting blocks by welding.

[0010] As a preferred technical solution of the utility model, the size of the slide groove is matched with the size of the slide block.

[0011] As a preferred technical solution of the utility model, there are four groups of springs, which are respectively located on both sides of the top of the mounting plate.

[0012] As a preferred technical solution of the utility model, there are two groups of the clamping plates, and the two groups of the clamping plates are arranged corresponding to each other in the middle of the mounting plate.

[0013] As a preferred technical solution of the utility model, the hydraulic cylinder is installed on the support plate through a fixed connection.

[0014] As a preferred technical solution of the utility model, one end of the pipeline is connected to the liquid oxygen outlet, and the other end of the pipeline is connected to the insulated gas cylinder.

[0015] Compared with the prior art, the utility model provides a liquid oxygen preparation fractionation tower, which has the following beneficial effects:

[0016] 1. The liquid oxygen preparation distillation tower is provided with a mounting assembly, a mounting plate, threaded holes, bolts, slide grooves, sliders, springs, clamps, hydraulic cylinders, support plates and mounting blocks. During installation, the threaded holes are first connected to the specified positions by bolts to install and fix the mounting plates. Then the upper tower and the lower tower of the distillation tower are placed on the mounting plate. The hydraulic cylinder is started to squeeze the springs, thereby driving the clamps to move along the slide grooves to clamp and fix the mounting blocks. The installation operation of the distillation tower can be completed. This design allows the distillation tower to be installed with accuracy by controlling the machining accuracy of the lower surface of the mounting block and the upper surface of the mounting plate, so as to ensure the verticality of the lower tower and avoid the problem that the distillation tower cannot be installed with accuracy during installation. This indirectly improves the practicability of the distillation tower and facilitates its promotion.

[0017] 2. The liquid oxygen preparation distillation tower is provided with a liquid oxygen outlet, a pipeline, an insulated gas cylinder and a valve. When a power outage causes insufficient cooling capacity, the valve is opened so that the liquid oxygen in the insulated gas cylinder can enter the distillation tower body through the pipeline for cooling without long waiting. This design avoids the problem of insufficient cooling capacity in the distillation tower after a power outage, requiring pressurization and cooling by an air compressor, resulting in a long restart cycle for the distillation tower, thereby indirectly improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 For this utility model Figure 1 A magnified view of the structure at center A;

[0020] Figure 3 For this utility model Figure 1 A magnified view of the structure at B in the middle;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the mounting plate of the utility model.

[0022] In the figure: 1. upper tower; 2. lower tower; 3. support leg; 4. mounting assembly; 401. mounting plate; 402. threaded hole; 403. bolt; 404. slide groove; 405. slider; 406. spring; 407. clamping plate; 408. hydraulic cylinder; 409. support plate; 410. mounting block; 5. liquid oxygen outlet; 6. pipeline; 7. insulated gas cylinder; 8. valve. DETAILED DESCRIPTION

[0023] 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 in 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.

[0024] See also Figure 1-4In this embodiment: a liquid oxygen preparation fractionation tower comprises an upper tower 1, a lower tower 2 is arranged at the bottom of the upper tower 1, a support leg 3 is arranged at one side below the front of the lower tower 2, a mounting assembly 4 is arranged at the bottom end of the support leg 3, a liquid oxygen outlet 5 is arranged at the bottom of one side of the lower tower 2, a pipeline 6 is arranged at one side of the liquid oxygen outlet 5, an insulated gas bottle 7 is arranged at the bottom end of the pipeline 6, and a valve 8 is arranged at one end of the insulated gas bottle 7; the mounting assembly 4 comprises a mounting plate 401, a threaded hole 402 is opened at one side of the top of the mounting plate 401, a bolt 403 is arranged inside the threaded hole 402, and the mounting plate 401 is away from the threaded hole 4 02 is provided with a slide groove 404, a slider 405 is arranged inside the slide groove 404, a spring 406 is arranged on one side of the slider 405, a clamping plate 407 is arranged on the top of the slider 405, a hydraulic cylinder 408 of model KYE50 is arranged on one side of the clamping plate 407, a support plate 409 is arranged at one end of the hydraulic cylinder 408, and a mounting block 410 is arranged in the middle of the top of the mounting plate 401, so that when installing the distillation tower, the processing accuracy of the lower surface of the mounting block 410 and the upper surface of the mounting plate 401 can be controlled to achieve the accuracy of the installation of the lower tower 2, so as to ensure the verticality of the lower tower 2.

[0025] In this embodiment, the support leg 3 is mounted on the mounting block 410 by welding, so that the support leg 3 can be supported and fixed by the mounting block 410, thereby improving the stability of the fractionation tower; the size of the slide groove 404 is adapted to the size of the slider 405, so that the clamping plate 407 connected to the slider 405 can be limited by the slide groove 404, thereby improving the stability of the clamping plate 407 when it is displaced; there are four groups of springs 406, which are respectively located on both sides of the top of the mounting plate 401, so that after the hydraulic cylinder 408 is contracted, the clamping plate 407 can be pushed to reset along the slide groove 404 by the elastic force of the spring 406; There are two groups of clamps 407, and the two groups of clamps 407 are arranged corresponding to each other in the middle of the mounting plate 401, so that the mounting block 410 can be clamped and fixed by the clamps 407, thereby improving the stability and firmness of the installation of the distillation tower; the hydraulic cylinder 408 is installed on the support plate 409 by a fixed connection, so that the hydraulic cylinder 408 can be installed and fixed, thereby improving the stability of the hydraulic cylinder 408; one end of the pipeline 6 is connected to the liquid oxygen outlet 5, and the other end of the pipeline 6 is connected to the insulated gas bottle 7, so that the liquid oxygen in the insulated gas bottle 7 can enter the distillation tower body through the pipeline 6 for cooling without waiting for a long time.

[0026] The working principle and use process of the utility model are as follows: during installation, first connect the threaded hole 402 with the specified position through the bolt 403, install and fix the mounting plate 401 in the mounting assembly 4, then place the upper tower 1 and the lower tower 2 of the distillation tower on the mounting plate 401, and start the hydraulic cylinder 408 on the support plate 409 so that the slider 405 connected to the clamping plate 407 squeezes the spring 406 in the slide groove 404, thereby driving the clamping plate 407 to move along the slide groove 404 on the mounting plate 401, clamp and fix the mounting block 410 at the bottom end of the support leg 3, and the installation operation of the distillation tower can be completed. This design makes the distillation tower During installation, the accuracy of the installation of the lower tower 2 can be achieved by controlling the machining accuracy of the lower surface of the mounting block 410 and the upper surface of the mounting plate 401, so as to ensure the verticality of the lower tower 2 and avoid the problem that the accuracy of the installation of the lower tower 2 cannot be well achieved during the installation of the distillation tower. When a power outage causes insufficient cooling capacity, the valve 8 on the insulated gas cylinder 7 is opened, so that the liquid oxygen in the insulated gas cylinder 7 can enter the distillation tower body through the pipeline 6 for cooling, without the need for long waiting. This design avoids the problem that after a power outage, the cooling capacity in the distillation tower is insufficient, and an air compressor is needed to increase pressure and cool it, resulting in a long restart period for the distillation tower.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A liquid oxygen preparation fractionation tower, comprising an upper tower (1), a lower tower (2) being arranged at the bottom of the upper tower (1), and a support leg (3) being arranged at one side below the front of the lower tower (2), characterized in that: A mounting assembly (4) is provided at the bottom end of the support leg (3); a liquid oxygen outlet (5) is provided below one side of the lower tower (2); a pipeline (6) is provided on one side of the liquid oxygen outlet (5); an insulated gas bottle (7) is provided at the bottom end of the pipeline (6); and a valve (8) is provided at one end of the insulated gas bottle (7); The mounting assembly (4) comprises a mounting plate (401), a threaded hole (402) is provided on one side of the top of the mounting plate (401), a bolt (403) is arranged inside the threaded hole (402), a slide groove (404) is provided on the mounting plate (401) away from the threaded hole (402), a slider (405) is arranged inside the slide groove (404), a spring (406) is arranged on one side of the slider (405), a clamping plate (407) is arranged on the top of the slider (405), a hydraulic cylinder (408) is arranged on one side of the clamping plate (407), a support plate (409) is arranged at one end of the hydraulic cylinder (408), and a mounting block (410) is arranged in the middle of the top of the mounting plate (401).

2. A liquid oxygen preparation fractionation tower according to claim 1, characterized in that: The supporting leg (3) is mounted on the mounting block (410) by welding.

3. A liquid oxygen preparation fractionation tower according to claim 1, characterized in that: The size of the slide groove (404) is matched with the size of the slide block (405).

4. A liquid oxygen preparation fractionation tower according to claim 1, characterized in that: There are four groups of springs (406) which are respectively located on both sides of the top of the mounting plate (401).

5. A liquid oxygen preparation fractionation tower according to claim 1, characterized in that: There are two groups of the clamping plates (407), and the two groups of the clamping plates (407) are arranged corresponding to each other in the middle of the mounting plate (401).

6. A liquid oxygen preparation fractionation tower according to claim 1, characterized in that: The hydraulic cylinder (408) is mounted on the support plate (409) by a fixed connection.

7. A liquid oxygen preparation fractionation tower according to claim 1, characterized in that: One end of the pipeline (6) is connected to the liquid oxygen outlet (5), and the other end of the pipeline (6) is connected to the insulated gas bottle (7).

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