Rectifying tower convenient for discharging inert gas

By introducing a rotating spray head and a baffle plate into the distillation column, the problem of ammonia accumulating at the top of the column and being difficult to discharge was solved, achieving efficient dissolution and complete discharge of ammonia, and improving ammonia desorption efficiency and equipment operation stability.

CN224024278UActive Publication Date: 2026-03-24SANMING JIFU CHEM CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

In existing distillation columns, ammonia gas tends to rise and accumulate at the top of the column during the inert removal process, making it difficult for some ammonia gas to be discharged smoothly. This results in some ammonia gas remaining inside the column, affecting the efficiency of ammonia desorption and the environment.

Method used

An absorption assembly was designed, including a spray head, straight and angled spray pipes, a motor-driven gear transmission system, and a baffle. The rotating spray head achieves omnidirectional uniform spraying and air circulation, enhances the contact between ammonia and water, absorbs residual ammonia in the low-pressure zone, and promotes ammonia diffusion through the baffle, thereby improving the ammonia dissolution efficiency.

Benefits of technology

It effectively improves the dissolution and deammoniation efficiency of ammonia, reduces ammonia residue, ensures complete discharge of ammonia, reduces residual ammonia content, and improves environmental impact and compressor operating cycle.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of rectifying tower equipment, and discloses a rectifying tower convenient for discharging inert gas, which comprises a reaction cylinder, the side wall of the reaction cylinder is fixedly connected with a gas outlet pipe, the side wall of the reaction cylinder is fixedly connected with a gas inlet pipe, and the bottom end face of the reaction cylinder is fixedly connected with a water drainage pipe. An absorption assembly is arranged at the top of the reaction cylinder. According to the rectifying tower facilitating inert gas discharging, water is converted into mist through the straight spraying pipeline, the other part of water is sprayed to the periphery through the inclined spraying pipeline, the spraying area is increased, the water makes full contact with ammonia gas, ammonia molecules in a gas phase are captured more quickly, ammonia gas residues are reduced, all-directional uniform spraying can be achieved through inertia by means of the rotary spraying head, the absorption efficiency is improved, and the energy consumption is reduced. Residual ammonia gas is sucked into the connecting pipe by the movable pipe and then is in contact with water through the through hole, so that the part of ammonia gas is absorbed and discharged and is prevented from being retained in the cylinder, more ammonia gas is ensured to be collected and discharged, and the deamination efficiency is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to rectifying tower equipment technical field, concretely to a rectifying tower convenient for the discharge of inert. BACKGROUND

[0002] Now the rectifying tower discharge inert is instrument pipe local intermittent discharge, long -term discharge influences the environment, leads to the high pressure of rectifying tower top, is not favorable to the analysis of ammonia and reduces residual liquid ammonia content, influences the ammonia content of gas making jacket thereby influences the ammonia content in coal gas, leads to the ammonia content of gas making circulating water and desulfurization circulating water, both influences environmental protection and influences the operation cycle of compressor,

[0003] According to the rectifying tower convenient for the discharge of inert (announcement number: CN219558743U) of publicizing, the above -mentioned application includes rectifying tower body, the discharge inert pipeline connected in rectifying tower body right side, the absorption tower connected in discharge inert pipeline right side, installs in the mixed stirring subassembly of rectifying tower body inboard, rectifying tower body upside fixed mounting has tower lid, tower lid upside fixed mounting has the air pipe, rectifying tower body outside fixed mounting has first support frame,

[0004] But the rectifying tower above in the actual use process, since the discharge inert pipeline 2 position is lower, and the density of ammonia gas is smaller than air, is easy to float and gather in the tower top, makes part of ammonia gas difficult to discharge smoothly, leads to the tower still to have residual, in view, we propose a kind of rectifying tower convenient for the discharge of inert. INVENTION CONTENTS

[0005] The utility model aims at providing a kind of rectifying tower convenient for the discharge of inert to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of rectifying tower convenient for the discharge of inert, including reaction cylinder, the side wall of the reaction cylinder is fixedly connected with air pipe, the side wall of the reaction cylinder is fixedly connected with air inlet pipe, the bottom end surface of the reaction cylinder is fixedly connected with drain pipe, the top of the reaction cylinder is provided with absorption subassembly, the absorption subassembly includes:

[0007] water inlet pipe, the bottom of the water inlet pipe is rotatably connected with spray head, the bottom end surface of the spray head is provided with straight direction spray pipeline, the inside bottom surface of the spray head is provided with inclined direction spray pipeline, the outer wall of the spray head is fixedly connected with driven gear one;

[0008] motor, the output of the motor is fixedly connected with shaft, the side wall of the shaft is fixedly connected with driving gear one;

[0009] Gas pipe, the gas pipe is connected with the movable pipe, the movable pipe is fixedly connected with the rotating disc away from the one end of the gas pipe, the side wall of the movable pipe is fixedly connected with the driven gear two, the rotating disc is rotatably connected with the connecting pipe, the side wall of the connecting pipe is provided with the through hole.

[0010] Preferably, the connecting pipe is fixedly connected with the inner wall of the drain pipe, and the axis of the rotating disc coincides with the axis of the driven gear two.

[0011] Preferably, the top end surface of the reaction cylinder is fixedly connected with a mounting bracket, the mounting bracket is fixedly connected with the motor, the mounting bracket is rotatably connected with the rotating shaft, and the side wall of the rotating shaft is fixedly connected with the driving gear two.

[0012] Preferably, the side wall of the rotating shaft is fixedly connected with the pulley one, the pulley one is driven in transmission with the belt, the side wall of the rotating shaft is fixedly connected with the pulley two, the pulley two is driven in transmission with the belt, and the rotation of the rotating shaft drives the rotation of the rotating shaft through the transmission of the belt.

[0013] Preferably, the driving gear one is engaged with the driven gear one, and the driving gear two is engaged with the driven gear two, the driving gear one drives the rotation of the driven gear one, and the driving gear two drives the rotation of the driven gear two.

[0014] Preferably, the connecting pipe is provided with a vertical part and a horizontal part, the vertical part is connected with the rotating disc, the axis of the horizontal part coincides with the axis of the drain pipe, and the through hole is arranged on the horizontal part.

[0015] Preferably, the inner wall of the reaction cylinder is fixedly connected with a support, the side wall of the support is rotatably connected with a rotating rod, and the side wall of the rotating rod is fixedly connected with a spoiler.

[0016] Compared with the prior art, the present application provides a rectifying tower convenient for removing inert gas, which has the following beneficial effects:

[0017] 1. The rectifying tower convenient for removing inert gas, by setting the absorption assembly, the straight spray pipe converts water into mist, improves the contact degree of water and ammonia gas, another part of water is sprayed to the surrounding through the inclined spray pipe, improves the spraying area, fully contacts with ammonia gas, faster captures ammonia molecules in the gas phase, reduces ammonia gas residue, improves the dissolution efficiency, more ammonia gas is absorbed by water and discharged through the drain pipe, the rotary spray head can realize all-around uniform spraying through inertia, ensures that the ammonia gas in the whole reaction cylinder can fully contact with the water mist, improves the absorption efficiency, forms a low-pressure area at the end of the movable pipe away from the gas pipe, and the ammonia gas at the top of the movable pipe is sucked downward, and then the residual ammonia gas is sucked into the connecting pipe, and then contacts with water through the through hole, absorbs and discharges the ammonia gas, prevents the ammonia gas from remaining in the cylinder, ensures that more ammonia gas is collected and discharged, and improves the ammonia removal efficiency.

[0018] 2、The rectifying tower convenient for removing inert gas, by the setting of the spoiler, air circulation is driven, ammonia gas at the top flows downward, local high-concentration ammonia gas area is destroyed, ammonia gas is diffused to the whole reaction cylinder, water mist can cover more ammonia gas, removal rate is improved, water mist is fully contacted, gas-liquid mass transfer efficiency is improved, ammonia gas dissolution rate is accelerated, and residue is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main body structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross section structure of the reaction cylinder of the utility model;

[0021] Figure 3 It is a schematic diagram of the spray head structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the rotating disc structure of the utility model.

[0023] In the drawing: 1, reaction cylinder; 2, gas outlet pipe; 3, gas inlet pipe; 4, drain pipe; 5, absorption assembly; 501, water inlet pipe; 502, spray head; 503, straight spraying pipeline; 504, inclined spraying pipeline; 505, driven gear one; 506, motor; 507, rotating shaft; 508, driving gear one; 509, gas pipe; 510, movable pipe; 511, driven gear two; 512, rotating disc; 513, connecting pipe; 514, through hole; 515, driving gear two; 516, rotating shaft; 517, belt; 6, mounting frame; 7, support; 8, rotating rod; 9, spoiler. DETAILED DESCRIPTION

[0024] As Figures 1-4 shown, the utility model provides a technical scheme: a rectifying tower convenient for removing inert gas, including reaction cylinder 1, the lateral wall of reaction cylinder 1 is fixedly connected with gas outlet pipe 2, the lateral wall of reaction cylinder 1 is fixedly connected with gas inlet pipe 3, the bottom end surface of reaction cylinder 1 is fixedly connected with drain pipe 4, the top of reaction cylinder 1 is provided with absorption assembly 5, and absorption assembly 5 includes water inlet pipe 501, spray head 502, straight spraying pipeline 503, inclined spraying pipeline 504, driven gear one 505, motor 506, rotating shaft 507, driving gear one 508, gas pipe 509, movable pipe 510, driven gear two 511, rotating disc 512, connecting pipe 513, through hole 514, driving gear two 515, rotating shaft 516 and belt 517.

[0025] In an embodiment of the utility model, the bottom of water inlet pipe 501 rotatably connects with spray head 502, the bottom end surface of spray head 502 is provided with straight spray pipeline 503, the inside bottom surface of spray head 502 is provided with oblique spray pipeline 504, the outer wall of spray head 502 is fixedly connected with driven gear one 505, the top end surface of reaction cylinder 1 is fixedly connected with mounting bracket 6, mounting bracket 6 is fixedly connected with motor 506, mounting bracket 6 is rotatably connected with rotating shaft 516, the side wall of rotating shaft 516 is fixedly connected with driving gear two 515, the output end of motor 506 is fixedly connected with rotating shaft 507, the side wall of rotating shaft 507 is fixedly connected with driving gear one 508, driving gear one 508 is engaged with driven gear one 505, driving gear two 515 is engaged with driven gear two 511.

[0026] Gas pipe 509 is connected with movable pipe 510, the end of movable pipe 510 away from gas pipe 509 is fixedly connected with rotating disc 512, the side wall of movable pipe 510 is fixedly connected with driven gear two 511, driving gear one 508 rotates and drives driven gear one 505 to rotate, driving gear two 515 rotates and drives driven gear two 511 to rotate, the side wall of rotating shaft 516 is fixedly connected with pulley one, pulley one is drivingly connected with belt 517, the side wall of rotating shaft 507 is fixedly connected with pulley two, pulley two is drivingly connected with belt 517, the rotation of rotating shaft 507 drives rotating shaft 516 to rotate through the transmission of belt 517, rotating disc 512 is rotatably connected with connecting pipe 513, connecting pipe 513 is fixedly connected with the inner wall of drain pipe 4, the axis of rotating disc 512 coincides with the axis of driven gear two 511, the side wall of connecting pipe 513 is provided with through hole 514, connecting pipe 513 is provided with vertical part and horizontal part, the vertical part is connected with rotating disc 512, the axis of horizontal part coincides with the axis of drain pipe 4, through hole 514 is arranged on the horizontal part.

[0027] Through the spray of water inlet pipe 501 and spray head 502 to reaction cylinder 1, ammonia is easy to dissolve in water, and then water carries ammonia into drain pipe 4 and discharges reaction cylinder 1, part of water is sprayed from straight spray pipeline 503, because straight spray pipeline 503 narrows the pipeline first and then widens the pipeline, the water is pressurized, the water is converted into mist, the fullness of water and ammonia contact is improved, another part of water is sprayed to all directions through oblique spray pipeline 504, the spraying area is improved, can more fully contact with ammonia, faster capture of ammonia molecules in gas phase, reduce the residual ammonia, improve the dissolution efficiency, more ammonia is absorbed by water and discharged with drain pipe 4, motor 506 drives rotating shaft 507 and driving gear one 508 to rotate, further drives spray head 502 to rotate, static spray may exist spray dead angle, leading to local area ammonia absorption deficiency, and rotating spray head 502 can realize all-round uniform spraying through inertia, ensure that ammonia in the whole reaction cylinder 1 can fully contact with water mist, improve the absorption efficiency.

[0028] After spraying, air is filled into the reaction cylinder 1 through the air inlet pipe 3. Ammonia is lighter than air, so it enters the gas pipe 509. The rotating shaft 516, the driving gear 2 515, the driven gear 2 511 and the movable pipe 510 are rotated, so that the movable pipe 510 and the rotating disc 512 rotate around the axis of the driven gear 2 511. In turn, a low pressure area is formed at the end of the movable pipe 510 away from the gas pipe 509, and the ammonia gas at the top of the movable pipe 510 is sucked downward. In turn, the residual ammonia gas is sucked into the connecting pipe 513, and then contacts with water through the through hole 514. This part of ammonia gas is absorbed and discharged, preventing it from remaining in the cylinder, ensuring more ammonia gas to be collected and discharged, and improving the deamination efficiency.

[0029] In addition, the inner wall of the reaction cylinder 1 is fixedly connected with a support 7, the side wall of the support 7 is rotatably connected with a rotating rod 8, the side wall of the rotating rod 8 is fixedly connected with a spoiler 9. When water is sprayed into the reaction cylinder 1, the water drives the spoiler 9 to rotate, and in turn promotes the air in the reaction cylinder 1 to circulate up and down. Since ammonia is lighter than air, it is easy to float and gather above the cylinder. Water spraying mainly occurs in the lower or middle part. If the gas does not flow sufficiently, it may lead to insufficient absorption of ammonia gas outside the spraying area. The spoiler 9 rotates to drive the air circulation, so that the ammonia gas at the top flows downward, destroys the local high concentration ammonia gas area, promotes the ammonia gas to diffuse to the whole reaction cylinder 1, so that the water mist can cover more ammonia gas, improves the removal rate, and improves the gas-liquid mass transfer efficiency, accelerates the dissolution rate of ammonia gas, and reduces the residue.

[0030] In the utility model, when using, through water inlet pipe 501 and sprinkler head 502, water is sprayed into reaction cylinder 1, ammonia is easy to dissolve in water, and then water carrying ammonia enters drain pipe 4 and is discharged from reaction cylinder 1, part of water is sprayed from straight spraying pipeline 503, because straight spraying pipeline 503 narrows the pipeline first and then widens the pipeline, water is pressurized, water is converted into mist, the degree of fullness of water and ammonia contact is improved, another part of water is sprayed to all directions through oblique spraying pipeline 504, the area of spraying is improved, water and ammonia can contact more fully, ammonia molecules in gas phase can be captured more quickly, ammonia residue is reduced, dissolution efficiency is improved, more ammonia can be absorbed by water and discharged with drain pipe 4, motor 506 drives rotating shaft 507 and driving gear one 508 to rotate, further drives sprinkler head 502 to rotate, static spraying can have dead angle, leading to insufficient ammonia absorption in local area, but rotating sprinkler head 502 can realize all-round uniform spraying through inertia, ensuring that ammonia in whole reaction cylinder 1 can fully contact with water mist, improving absorption efficiency, after spraying, air is filled into reaction cylinder 1 through air inlet pipe 3, ammonia is lighter than air, leading to that ammonia enters gas pipe 509, rotating shaft 516 and driving gear two 515 rotate driven gear two 511 and movable pipe 510, movable pipe 510 and rotating disc 512 rotate around the axis line of driven gear two 511, then a low pressure area is formed at the end of movable pipe 510 far from gas pipe 509, ammonia at the top of movable pipe 510 is sucked downwards, then residual ammonia is sucked into connecting pipe 513, then contacts water through through hole 514, this part of ammonia is discharged, preventing the ammonia from staying in the cylinder, ensuring that more ammonia is collected and discharged, improving ammonia removal efficiency.

[0031] The utility model has been described in detail above, but some modifications or improvements can be made on the basis of the utility model, which is obvious to the general technical personnel in the technical field. Therefore, the modification or improvement without departing from the utility model spirit is within the protection scope of the utility model.

Claims

1. A distillation column for easy inert removal, comprising a reaction cylinder (1), wherein an outlet pipe (2) is fixedly connected to the side wall of the reaction cylinder (1), an inlet pipe (3) is fixedly connected to the side wall of the reaction cylinder (1), and a drain pipe (4) is fixedly connected to the bottom end face of the reaction cylinder (1), characterized in that: An absorption assembly (5) is provided at the top of the reaction cylinder (1), and the absorption assembly (5) includes: A water inlet pipe (501) is rotatably connected to a spray head (502) at its bottom. A straight spray pipe (503) is provided on the bottom end face of the spray head (502). An oblique spray pipe (504) is provided on the inner bottom surface of the spray head (502). A driven gear (505) is fixedly connected to the outer wall of the spray head (502). A motor (506) is provided, and a rotating shaft (507) is fixedly connected to the output end of the motor (506). A drive gear (508) is fixedly connected to the side wall of the rotating shaft (507). Gas tube (509) is sleeved with movable tube (510). The end of movable tube (510) away from gas tube (509) is fixedly connected to turntable (512). Driven gear two (511) is fixedly connected to the side wall of movable tube (510). Turntable (512) is rotatably connected to connecting tube (513). Through hole (514) is opened on the side wall of connecting tube (513).

2. A distillation column for easy inert removal according to claim 1, characterized in that: The connecting pipe (513) is fixedly connected to the inner wall of the drain pipe (4), and the axis of the turntable (512) coincides with the axis of the driven gear (511).

3. A distillation column for easy inert removal according to claim 1, characterized in that: The top end face of the reaction cylinder (1) is fixedly connected to a mounting bracket (6), the mounting bracket (6) is fixedly connected to a motor (506), the mounting bracket (6) is rotatably connected to a rotating shaft (516), and a second drive gear (515) is fixedly connected to the side wall of the rotating shaft (516).

4. A distillation column for easy inert removal according to claim 3, characterized in that: A pulley is fixedly connected to the side wall of the rotating shaft (516), and the pulley is connected to the belt (517) for transmission. A second pulley is fixedly connected to the side wall of the rotating shaft (507), and the second pulley is connected to the belt (517) for transmission.

5. A distillation column for easy inert removal according to claim 3, characterized in that: The first driving gear (508) meshes with the first driven gear (505), and the second driving gear (515) meshes with the second driven gear (511).

6. A distillation column for easy inert removal according to claim 1, characterized in that: The connecting pipe (513) is provided with a vertical part and a horizontal part. The vertical part is sleeved with the turntable (512). The axis of the horizontal part coincides with the axis of the drain pipe (4). The through hole (514) is opened on the horizontal part.

7. A distillation column for easy inert removal according to claim 1, characterized in that: The inner wall of the reaction cylinder (1) is fixedly connected to a support (7), and the side wall of the support (7) is rotatably connected to a rotating rod (8), and the side wall of the rotating rod (8) is fixedly connected to a baffle (9).

Citation Information

Patent Citations

  • Rectifying tower convenient for discharging inert gas

    CN219558743U