Mist catcher design structure for air separation precooling system

Abstract

The utility model relates to the technical field of air separation precooling systems, in particular to a mist catcher design structure for an air separation precooling system, which comprises a rectifying tower, a limit groove is arranged at the top end of the rectifying tower, a support block is fixedly connected inside the limit groove, and a first spring is fixedly connected at the top end of the support block. Through arrangement of a limiting groove, a supporting block, a first spring, a first rubber pad, a fixing ring, first and second limiting blocks, a damping rod, a second spring, a second limiting block, a balance weight ring, a mist catcher and other components, the first limiting block on the fixing ring is aligned with the limiting groove firstly, the hand is directly loosened after alignment, and the fixing ring and the mist catcher can be fixed under limiting of the limiting groove and the first limiting block; and the fixed ring is supported and buffered through a supporting block, a first spring and a first rubber pad, then a second limiting block on the balance weight ring is aligned with a limiting groove, and the balance weight ring falls down in the rectifying tower under the limiting of the limiting groove and the rectifying tower.

Description

Technical Field

[0001] The utility model relates to the technical field of air separation precooling systems, in particular to a mist catcher design structure for an air separation precooling system. Background Art

[0002] An air separation unit uses air as raw material, converts the air into liquid through a compression cycle and deep freezing method, and then gradually separates and produces inert gases such as oxygen, nitrogen and argon from the liquid air through distillation. It is widely used in traditional metallurgy, new coal chemical industry, large-scale nitrogen fertilizer, professional gas supply and other fields. The specific process is as follows: the compressed air from the air compressor is removed by molecular sieves to remove impurities such as moisture, carbon dioxide, and hydrocarbons. Part of the air is directly sent to the upper tower of the distillation tower, and the other part enters the expander for expansion and refrigeration, and is then sent to the lower tower. In the distillation tower, after the rising steam and the falling liquid undergo heat exchange, high-purity nitrogen can be obtained at the top of the upper tower, and high-purity oxygen can be obtained at the bottom of the upper tower. A mist collector structure is installed at the top of the distillation tower to separate the liquid and gas, thereby reducing the liquid substances carried by the oxygen.

[0003] The existing mist collector structure requires drilling holes and installing brackets on the inner wall of the distillation tower, and then fixing and installing it with various fixing parts, which is very troublesome; when the existing mist collector structure is damaged and needs to be disassembled for maintenance, workers are required to enter the distillation tower to disassemble it. Various gases in the tower are mixed, which is very harmful to the human body. Therefore, in response to the above problems, a mist collector design structure for an air separation precooling system is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a mist catcher design structure for an air separation pre-cooling system to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A mist catcher design structure for an air separation precooling system includes a distillation tower, a limiting groove is provided at the top of the distillation tower, a support block is fixedly connected to the inside of the limiting groove, the top of the support block is fixedly connected to a first spring, the top of the first spring is fixedly connected to a first rubber pad, the top of the first rubber pad is provided with a fixing ring, the outer side of the fixing ring is fixedly connected to a first limiting block located on the inner side of the limiting groove, the inner side of the fixing ring is fixedly connected to a mist catcher, the top of the fixing ring is fixedly connected to a damping rod, the top of the fixing ring is fixedly connected to a second spring located on the outer side of the damping rod, the inner side of the limiting groove is slidably connected to a second limiting block located above the first limiting block, the inner side of the second limiting block is fixedly connected to a counterweight ring, and the inner side of the fixing ring is provided with a mist catcher.

[0007] Preferably, the top end of the fixing ring is fixedly connected to a fixing rod located between the damping rods, and a fixing hole is provided on the outer side of the fixing rod.

[0008] Preferably, the fixing rods and fixing holes form a group, with a total of four groups, and all are arranged on the surface of the fixing ring, and the height of the fixing rods is half the height of the damping rods.

[0009] Preferably, the first rubber pad and the fixing ring are identical in shape and size, both being circular.

[0010] Preferably, the limiting groove, the first limiting block and the second limiting block form a group, with a total of four groups, and are evenly arranged inside the distillation tower around the mist catcher.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. In the utility model, by setting the limit groove, support block, first spring, first rubber pad, fixed ring, first limit block, damping rod, second spring, second limit block, counterweight ring and mist catcher and other components, first align the first limit block on the fixed ring with the limit groove, and then release it directly after alignment. The fixed ring and the mist catcher will slide down under the limit of the limit groove and the first limit block. The fixed ring is supported and buffered by the support block, first spring and first rubber pad, and then the second limit block on the counterweight ring is aligned with the limit groove. The positioning groove and the limiting groove and the distillation tower limit the counterweight ring to fall downward in the distillation tower. The multiple damping rods and the second spring provide a more powerful shock absorption and buffering for the heavier counterweight ring. The counterweight ring can fix and limit the fixing ring and the mist catcher. The mist catcher can be installed quickly through the above operation without the help of tools and fixing parts, thus solving the existing mist catcher structure that requires drilling holes and installing brackets on the inner wall of the distillation tower, and then fixing and installing with various fixing parts, which is very troublesome.

[0013] 2. In the utility model, by providing components such as a fixing ring, a fixing rod and a fixing hole, before the fixing ring enters the interior of the distillation tower, two steel wires are first respectively passed through the fixing holes on the four fixing rods, and the two fixing rods are connected together by the steel wires. After all are connected, the steel wires form a staggered state. When the mist catcher needs to be replaced, it is only necessary to hook the steel wire with a hook through an externally provided lifting device. Under the action of the fixing rod and the fixing hole, the fixing ring, the mist catcher, the counterweight ring and other components are taken out of the distillation tower through the steel wire, thereby solving the problem that the existing mist catcher structure is damaged and needs to be disassembled for maintenance, which requires workers to enter the distillation tower to disassemble it, and various gases in the tower are mixed, which is harmful to the human body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1This is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the top structure of the utility model.

[0017] In the figure: 1. Distillation tower; 2. Limiting groove; 3. Support block; 4. First spring; 5. First rubber pad; 6. Fixing ring; 7. First limiting block; 8. Fixing rod; 9. Fixing hole; 10. Damping rod; 11. Second spring; 12. Second limiting block; 13. Counterweight ring; 14. Mist catcher. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0020] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0021] See also Figure 1-3 , the utility model provides a technical solution:

[0022] A mist catcher design structure for an air separation precooling system includes a distillation tower 1, a limiting groove 2 is provided at the top of the distillation tower 1, a support block 3 is fixedly connected inside the limiting groove 2, a first spring 4 is fixedly connected to the top of the support block 3, a first rubber pad 5 is fixedly connected to the top of the first spring 4, a fixing ring 6 is provided on the top of the first rubber pad 5, a first limiting block 7 located inside the limiting groove 2 is fixedly connected to the outside of the fixing ring 6, a mist catcher 14 is fixedly connected to the inside of the fixing ring 6, a damping rod 10 is fixedly connected to the top of the fixing ring 6, a second spring 11 located outside the damping rod 10 is fixedly connected to the top of the fixing ring 6, a second limiting block 12 located above the first limiting block 7 is slidably connected to the inside of the limiting groove 2, a counterweight ring 13 is fixedly connected to the inside of the second limiting block 12, and a mist catcher 14 is provided on the inside of the fixing ring 6.

[0023] The top end of the fixing ring 6 is fixedly connected to a fixing rod 8 located between the damping rods 10 , and a fixing hole 9 is formed on the outer side of the fixing rod 8 .

[0024] The fixing rod 8 and the fixing hole 9 are a group, with a total of four groups, and are all set on the surface of the fixing ring 6, and the height of the fixing rod 8 is half the height of the damping rod 10. The shape and size of the first rubber pad 5 and the fixing ring 6 are exactly the same, and both are circular. The limiting groove 2, the first limiting block 7 and the second limiting block 12 are a group, with a total of four groups, and are evenly arranged inside the distillation tower 1 around the mist catcher 14 as the center.

[0025] Workflow: When it is necessary to use the mist catcher design structure for the air separation pre-cooling system, first pass the two steel wires through the fixing holes 9 on the four fixing rods 8 respectively, then weld the steel wires firmly on the fixing rods 8, and connect the two fixing rods 8 together through the steel wires. After all are connected, the steel wires form a staggered state, and then align the first limit block 7 on the fixing ring 6 with the limit groove 2. After alignment, let go directly, and the fixing ring 6 and the mist catcher 14 will slide down under the limit of the limit groove 2 and the first limit block 7. The fixing ring 6 is supported and buffered by the set support block 3, the first spring 4 and the first rubber pad 5. Then align the second limit block 12 on the counterweight ring 13 with the limit groove 2, and between the limit groove 2 and the distillation tower 1, the counterweight ring 13 falls downward in the distillation tower 1, and the multiple damping rods 10 and the second spring 11 are used to provide a more powerful shock absorption and buffering for the heavier counterweight ring 13. The counterweight ring 13 can fix and limit the fixed ring 6 and the mist catcher 14 to prevent the fixed ring 6 from shaking. The installation of the mist catcher 14 can be quickly completed through the above operation without the help of tools and fixings. When the mist catcher 14 needs to be replaced, it is only necessary to hook the steel wire with a hook through the external lifting device. Under the action of the fixing rod 8 and the fixing hole 9, the fixing ring 6, the mist catcher 14 and the counterweight ring 13 and other components are taken out of the distillation tower 1 through the steel wire, and there is no need for workers to enter the distillation tower 1 to operate.

[0026] Any matters not described in detail in this specification are prior art known to those skilled in the art. Standard parts used in this utility model are commercially available, and special-shaped parts can be customized according to the description in the specification and the accompanying drawings. The specific connection methods of each part are all conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment are all conventional models in the prior art, and the circuit connections use conventional connection methods in the prior art, which will not be described in detail here.

[0027] 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 mist collector design structure for an air separation precooling system, comprising a distillation tower (1), characterized in that: A limiting groove (2) is provided at the top of the distillation tower (1), a support block (3) is fixedly connected inside the limiting groove (2), a first spring (4) is fixedly connected to the top of the support block (3), a first rubber pad (5) is fixedly connected to the top of the first spring (4), a fixing ring (6) is provided at the top of the first rubber pad (5), a first limiting block (7) located inside the limiting groove (2) is fixedly connected to the outside of the fixing ring (6), a mist catcher (14) is fixedly connected to the inside of the fixing ring (6), a damping rod (10) is fixedly connected to the top of the fixing ring (6), a second spring (11) located outside the damping rod (10) is fixedly connected to the top of the fixing ring (6), a second limiting block (12) located above the first limiting block (7) is slidably connected to the inside of the limiting groove (2), a counterweight ring (13) is fixedly connected to the inside of the second limiting block (12), and a mist catcher (14) is provided on the inside of the fixing ring (6).

2. The mist collector design structure for an air separation precooling system according to claim 1 is characterized in that: The top end of the fixing ring (6) is fixedly connected to a fixing rod (8) located between the damping rods (10), and a fixing hole (9) is provided on the outside of the fixing rod (8).

3. The mist collector design structure for an air separation precooling system according to claim 2 is characterized in that: The fixing rods (8) and fixing holes (9) form a group, with a total of four groups, and are all arranged on the surface of the fixing ring (6), and the height of the fixing rods (8) is half the height of the damping rods (10).

4. The mist collector design structure for an air separation precooling system according to claim 1 is characterized in that: The first rubber pad (5) and the fixing ring (6) are completely consistent in shape and size, and are both circular.

5. The mist collector design structure for an air separation precooling system according to claim 1 is characterized in that: The limiting groove (2), the first limiting block (7) and the second limiting block (12) form a group, with a total of four groups, and are evenly arranged inside the distillation tower (1) around the mist catcher (14) as the center.

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