Chemical filling tower separation device with automatic cleaning function

Abstract

The utility model relates to the technical field of chemical equipment discloses a chemical packing tower separation device with automatic cleaning function, including tower shell and set up in its inside cleaning component. Cleaning component includes liquid storage tank, first water pump, first pipeline, shower nozzle, bearing and limit groove, first pipeline transports pressurized cleaning fluid to tower, and the shower nozzle is rotatably connected with the first pipeline end through the bearing, and under the positioning of limit groove, utilizes the water flow reaction force and rotates around the first pipeline, and the device still circulates and utilizes through the recovery component containing collection tank, isolation net and second water pump, and the filtered waste liquid is pumped back to the liquid storage tank, realizes high -efficient, dead angle -free automatic cleaning through the self -driven rotary shower nozzle, avoids the safety risk of manual tower operation, and through the cleaning fluid circulation system, saves the resources, reduces the environmental pollution, has remarkable safety and environmental protection benefit.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and in particular to a chemical packed tower separation device with automatic cleaning function. Background Technology

[0002] Packed towers, as key gas-liquid mass transfer devices, are widely used in separation processes such as absorption, desorption, distillation, and extraction in many industrial fields, including chemical, environmental protection, and pharmaceutical industries. They achieve efficient mass transfer and separation by providing a large gas-liquid contact surface area through the packing material within the tower.

[0003] During long-term continuous operation, due to the complexity of the materials being processed, such as those containing suspended particles, easily crystallizing substances, or undergoing polymerization reactions, dirt, crystals, or polymers will inevitably adhere to the inner walls, packing, and surfaces of internal components such as liquid distributors of packed towers.

[0004] When these deposits accumulate to a certain level, they can severely affect the separation efficiency of the tower, increase fluid resistance, and even cause equipment blockage. Currently, the common solution is to periodically shut down the tower, allowing it to cool and displace the contents, after which operators can enter the tower for manual high-pressure water jet flushing or chemical cleaning. However, this traditional method not only requires long downtime, severely impacting production continuity, but also poses extremely high safety risks such as poisoning and oxygen deficiency due to manual work in a confined space. Furthermore, manual cleaning cannot guarantee a thorough cleaning of complex components, easily leaving blind spots.

[0005] Therefore, this utility model proposes a chemical packed tower separation device with automatic cleaning function to overcome the shortcomings of the prior art. Utility Model Content

[0006] In view of the fact that in the existing technology, the inner wall and components of chemical packed towers are prone to dirt accumulation after long-term operation, and the traditional cleaning method relies on manual entry into the tower for cleaning, which has problems such as low operation efficiency, long downtime, extremely high safety risks of working in a confined space, and environmental pollution caused by the large amount of waste liquid generated during the cleaning process. The present invention aims to provide a chemical packed tower separation device with an automatic cleaning function that has an improved structure and can effectively solve the above problems.

[0007] This utility model provides a chemical packed tower separation device with automatic cleaning function, including: a tower shell, and a cleaning component disposed inside the tower shell.

[0008] The cleaning assembly includes a storage tank, a first water pump, a first pipe, a nozzle, a bearing, and a limiting groove. One end of the first pipe is connected to the outlet of the storage tank through the first water pump to receive pressurized cleaning liquid, and the other end of the first pipe extends through the wall of the tower shell into the upper part of the tower shell.

[0009] Furthermore, the nozzle is fixedly connected to the outer ring of the bearing, and the inner ring of the bearing is fitted onto the end of the first pipe. This structure allows the nozzle to rotate around the first pipe as an axis. A limiting groove for axial positioning is provided on the outer peripheral wall of the first pipe near the bearing. The limiting groove is used to restrict the movement of the bearing along the axial direction of the first pipe, ensuring that the nozzle is stable when rotated by the reaction force of the water flow, thereby achieving all-round automated cleaning of the inside of the tower shell.

[0010] Preferably, the chemical packed tower separation device with automatic cleaning function further includes a recovery component for collecting and recycling cleaning waste liquid; the recovery component includes a collection box disposed below the tower shell; a trough is fixedly connected to the bottom of the tower shell, and the drain outlet of the trough extends to the top of the collection box to facilitate the introduction of the cleaned waste liquid into the collection box.

[0011] Preferably, an isolation net is horizontally arranged in the upper part of the inner cavity of the collection box. The isolation net is used to intercept and filter large particulate solid impurities carried in the waste liquid before it enters the main body of the collection box.

[0012] Preferably, the recycling component further includes a second water pump and a second pipeline. One end of the second pipeline is connected to the bottom of the collection tank, and the other end is connected to the inlet of the storage tank through the second water pump, thereby constructing a closed-loop circulation path for the cleaning liquid from waste liquid collection to purification and then to reuse.

[0013] Preferably, a wire mesh demister is also fixed inside the tower shell, which is used to capture liquid droplets in the rising gas; the nozzle is arranged above the wire mesh demister so as to directly rinse and clean the upper surface of the wire mesh demister.

[0014] Preferably, inside the tower shell, below the wire mesh demister, a liquid distributor and a packing pressure shed are also fixed in sequence. The liquid distributor is used to evenly distribute the liquid to be separated, and the packing pressure shed is used to compress the packing layer.

[0015] Preferably, a feed pipe is also connected to the side wall of the tower shell, and the outlet of the feed pipe is located between the wire mesh demister and the liquid distributor, for conveying liquid materials into the tower.

[0016] Preferably, an air inlet pipe is also connected to the lower part of the side wall of the tower shell. The outlet of the air inlet pipe is located below the packing pressure shed and is used to transport gaseous materials into the tower to achieve countercurrent contact separation of the gas and liquid phases.

[0017] This utility model has the following beneficial effects: 1. This utility model solves the problems of low efficiency, high labor intensity and high safety risks of working in a confined space that require manual cleaning of dirt inside existing chemical packed towers by setting up a complete cleaning component consisting of a water pump, a liquid storage tank, pipelines and a self-rotating nozzle. It achieves the technical effects of automated online or offline cleaning, improved safety and shortened maintenance cycle.

[0018] 2. This utility model solves the problem of cleaning dead zones that are easy to form in traditional fixed spray devices, which lead to incomplete cleaning of the inner wall and components of the tower. It achieves the technical effect of comprehensive and dead-zone-free cleaning of the tower interior, significantly improving the cleaning quality. By forming a rotating connection between the nozzle and the liquid supply pipeline through bearings, and using the reaction force generated by the spraying of cleaning liquid to drive the nozzle to rotate, this utility model solves the problem of cleaning dead zones that are easy to form in traditional fixed spray devices, which leads to incomplete cleaning of the inner wall and components of the tower.

[0019] 3. This utility model, by adding a recycling component including a collection box, a filter screen, and a second water pump, filters the waste liquid after cleaning and pumps it back to the storage tank, solving the problem of resource waste and environmental pollution caused by the direct discharge of a large amount of waste liquid generated during the cleaning process. It realizes the recycling of cleaning liquid, reduces operating costs and waste liquid discharge, and has good economic and environmental benefits. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of a chemical packed tower separation device with automatic cleaning function proposed in this utility model; Figure 2 This is a schematic diagram of the tower shell of a chemical packed tower separation device with automatic cleaning function proposed in this utility model; Figure 3 This is a schematic diagram of the nozzle structure of a chemical packed tower separation device with automatic cleaning function proposed in this utility model; Figure 4 This is a schematic diagram of the collection box of a chemical packed tower separation device with automatic cleaning function proposed in this utility model.

[0021] Legend: 1. Tower shell; 2. Feed pipe; 3. Liquid distributor; 4. Packing gland; 5. Air inlet pipe; 6. Cleaning assembly; 601. Nozzle; 602. Bearing; 603. First pipeline; 604. Limiting groove; 605. First water pump; 606. Liquid storage tank; 7. Recovery assembly; 701. Collection box; 702. Isolation net; 703. Second pipeline; 704. Second water pump; 8. Leakage trough; 9. Wire mesh demister. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0023] Example: Please refer to Figures 1 to 4 This utility model provides a chemical packed tower separation device with automatic cleaning function, which aims to solve the problems of existing chemical packed towers having complex internal structures, easy adhesion of dirt to their inner walls and components after long-term use, and lack of effective integrated automatic cleaning structure, resulting in difficult cleaning, long downtime and safety risks.

[0024] like Figure 1 and Figure 2 As shown, the chemical packed tower separation device with automatic cleaning function includes a tower shell 1 and a cleaning component 6 that is configured in conjunction with the tower shell 1. The tower shell 1 serves as the core supporting body of the entire device and is used to enclose the internal space for gas-liquid separation. The cleaning component 6 is used to automatically flush and clean the interior of the tower shell 1 when needed.

[0025] Specifically, the cleaning component 6 includes a liquid storage tank 606, a first water pump 605, a first pipe 603, a nozzle 601, a bearing 602, and a limiting groove 604 opened on the first pipe 603; the liquid storage tank 606 is used to store cleaning liquid; the inlet of the first water pump 605 is connected to the outlet of the liquid storage tank 606 to provide power for the delivery of cleaning liquid.

[0026] One end of the first pipe 603 is connected to the outlet of the first water pump 605, and the other end passes through the wall of the tower shell 1 and extends into the upper space of the tower shell 1, for conveying the cleaning liquid from outside the tower to inside the tower; the nozzle 601 is rotatably connected to the end of the first pipe 603 through the bearing 602, and the nozzle 601 is used to atomize the high-pressure cleaning liquid and spray it out.

[0027] Reference Figure 3The rotating connection structure is described in detail below: the nozzle 601 is fixedly connected to the outer ring of the bearing 602, and the inner ring of the bearing 602 is fitted onto the end of the first pipe 603. This structure allows the nozzle 601 to rotate freely around the central axis of the first pipe 603 while the first pipe 603 remains stationary. To ensure the stability of the rotating connection, an annular limiting groove 604 is provided on the outer peripheral wall of the first pipe 603 near the bearing 602. The limiting groove 604 is used to axially position the bearing 602, thereby preventing the bearing 602 and the nozzle 601 fixedly connected to it from moving along the length of the first pipe 603 when subjected to impact, thus ensuring the constant working position of the nozzle 601.

[0028] During the cleaning operation, the first water pump 605 is started, pressurizing the cleaning fluid in the storage tank 606 and then delivering it to the nozzle 601 through the first pipeline 603. The cleaning fluid is sprayed out at high speed from multiple nozzles on the nozzle 601. The reaction torque generated by the jet flow drives the nozzle 601 to rotate automatically around the first pipeline 603, thereby spraying the cleaning fluid onto the inner wall of the tower shell 1 and the surface of other components inside the tower without dead angles, achieving efficient and comprehensive automated cleaning.

[0029] To achieve the recovery and recycling of cleaning waste liquid, in the technical solution of this embodiment, the chemical packed tower separation device with automatic cleaning function also includes a recovery component 7; the recovery component 7 forms a specific structural fit and connection relationship with the tower shell 1 and the cleaning component 6, together constituting a closed-loop circulation system for the cleaning liquid.

[0030] Please refer to the following carefully. Figure 1 , Figure 2 and Figure 4 The structure of the recycling component 7 will be described in detail below: The recovery assembly 7 includes a collection box 701, which is an open box located below the tower shell 1. In order to effectively guide the cleaning waste liquid inside the tower shell 1 into the collection box 701, a trough 8 is fixedly connected to the conical bottom of the tower shell 1. The trough 8 serves as a transition structure for collecting and guiding the liquid, and its drain outlet extends above the opening of the collection box 701.

[0031] To achieve preliminary purification of the cleaning waste liquid, an isolation net 702 is horizontally arranged in the upper part of the inner cavity of the collection box 701. The isolation net 702 is a plate-shaped structure with multiple through holes. Its function is to preferentially intercept and filter out larger solid impurities and dirt particles in the waste liquid when it flows into the collection box 701.

[0032] To pump the filtered cleaning fluid back to the cleaning assembly 6, the recycling assembly 7 also includes a second water pump 704 and a second pipe 703; one end of the second pipe 703 is connected to the bottom side wall of the collection tank 701, and the other end is connected to the inlet of the storage tank 606; the second water pump 704 is installed on the pipeline of the second pipe 703 to provide power for conveying the recycled cleaning fluid.

[0033] During the entire recycling process, the waste liquid carrying dirt, after being sprayed by nozzle 601, flows down the inner wall of the tower shell 1, collects in the trough 8, and enters the collection tank 701. Large particles of impurities are filtered out by the isolation net 702, and the relatively clean liquid settles to the bottom of the collection tank 701. Then, the second water pump 704 starts and pumps this part of the liquid back to the storage tank 606 through the second pipeline 703, thus completing the recycling and circulation replenishment of the cleaning liquid. This structure significantly reduces the consumption of cleaning liquid and the amount of waste liquid discharged.

[0034] Based on the above embodiments, the present invention may further include the following preferred technical solutions: As a preferred embodiment, to achieve effective capture of droplets entrained in the updraft, please refer to... Figure 2 Inside the tower shell 1, a wire mesh demister 9 is also fixed; the wire mesh demister 9 is a disc-shaped component made of multiple layers of metal or non-metal wire mesh pressed together, which is horizontally fixed on the inner wall of the tower shell 1; combined with the aforementioned structure, the nozzle 601 is set above the wire mesh demister 9. This arrangement allows the rotating nozzle 601 to directly rinse the upper surface of the wire mesh demister 9 without obstruction during cleaning operations, effectively removing the dirt and blockages attached to it.

[0035] As another preferred embodiment, for constructing a complete packed tower gas-liquid contact separation structure, please refer to... Figure 2 Inside the tower shell 1, below the wire mesh demister 9, a liquid distributor 3 and a packing pressure shed 4 are also fixed in sequence. The liquid distributor 3 is also a disc-shaped structure with multiple liquid channels or nozzles evenly distributed on it, which are used to evenly spray the liquid to be separated onto the packing layer below. The packing pressure shed 4 is a grid plate or similar structure, which is used to press and fix the packing layer (not shown in the figure) located below it, to prevent the packing from moving or fluidizing under the impact of airflow.

[0036] For a further refinement of the above gas-liquid separation structure, please refer to Figure 1 and Figure 2To facilitate material input, a feed pipe 2 and an air inlet pipe 5 are connected to the side wall of the tower shell 1. Specifically, the outlet of the feed pipe 2 is located in the space between the wire mesh demister 9 and the liquid distributor 3, and is used to transport the liquid material to be separated. The air inlet pipe 5 is connected to the lower part of the side wall of the tower shell 1, and its outlet is located below the packing pressure 4, and is used to send the gaseous material into the tower to make countercurrent contact with the liquid flowing from top to bottom.

[0037] The working principle of this chemical packed tower separation device with automatic cleaning function is as follows: During conventional gas-liquid separation, the liquid material enters the tower shell 1 through the feed pipe 2, is evenly sprayed by the liquid distributor 3, and flows downward along the surface of the packing layer. At the same time, the gas material enters from the bottom of the tower shell 1 through the air inlet pipe 5 and passes upward through the packing layer. The gas and liquid phases have sufficient countercurrent contact in the packing layer to achieve mass transfer or heat transfer. Before leaving the top of the tower, the gas that has completed the contact passes through the wire mesh demister 9, where the tiny liquid droplets entrained are captured, thereby obtaining a clean gas phase product. The separated liquid is collected in the drain 8 at the bottom of the tower and discharged.

[0038] When the interior of the tower shell 1 needs to be cleaned, the first water pump 605 of the cleaning component 6 is started; the cleaning liquid in the storage tank 606 is transported to the nozzle 601 at the top of the tower under high pressure through the first pipe 603; when the cleaning liquid is sprayed out of the nozzle 601 at high speed, the reaction torque generated drives the nozzle 601, which is fixed to the outer ring of the bearing 602, to rotate automatically around the end of the first pipe 603 that is matched with the inner ring of the bearing 602; due to the axial limiting effect of the limiting groove 604 on the bearing 602, the nozzle 601 continuously rotates and sprays in a stable position, evenly covering the surface of all internal components such as the inner wall of the tower shell 1, the wire mesh demister 9, the liquid distributor 3, and the packing pressure shed 4, to achieve all-round automatic rinsing without dead angles.

[0039] The waste liquid generated during cleaning flows down the inner wall of the tower and enters the collection tank 701 of the recovery component 7 through the trough 8. Solid impurities in the waste liquid are first filtered and intercepted by the isolation net 702. Then, the second water pump 704 of the recovery component 7 is started to pump the preliminarily filtered cleaning liquid at the bottom of the collection tank 701 back to the storage tank 606 through the second pipeline 703, realizing the recycling of the cleaning liquid and reducing resource consumption and environmental pollution.

[0040] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A chemical packed tower separation device with automatic cleaning function, comprising a tower shell (1) and a cleaning component (6) disposed inside the tower shell (1), characterized in that, The cleaning component (6) includes a liquid storage tank (606), a first water pump (605), a first pipe (603), a nozzle (601), a bearing (602), and a limiting groove (604). One end of the first pipe (603) is connected to the outlet of the liquid storage tank (606) through the first water pump (605), and the other end of the first pipe (603) extends into the upper part of the tower shell (1); The nozzle (601) is fixedly connected to the outer ring of the bearing (602), and the inner ring of the bearing (602) is sleeved on the end of the first pipe (603) so that the nozzle (601) can rotate around the axis of the first pipe (603). The first pipe (603) has a limiting groove (604) on its outer peripheral wall near the bearing (602) for axial positioning.

2. The chemical packed tower separation device with automatic cleaning function according to claim 1, characterized in that, The device also includes a recovery assembly (7); the recovery assembly (7) includes a collection box (701) disposed below the tower shell (1); a trough (8) is fixedly connected to the bottom of the tower shell (1), and the drain outlet of the trough (8) extends to the top of the collection box (701).

3. The chemical packed tower separation device with automatic cleaning function according to claim 2, characterized in that, An isolation net (702) is horizontally arranged in the upper part of the inner cavity of the collection box (701).

4. The chemical packed tower separation device with automatic cleaning function according to claim 2, characterized in that, The recycling component (7) also includes a second water pump (704) and a second pipe (703); one end of the second pipe (703) is connected to the bottom of the collection box (701), and the other end is connected to the inlet of the storage tank (606) through the second water pump (704).

5. The chemical packed tower separation device with automatic cleaning function according to claim 1, characterized in that, The tower shell (1) is also fixed with a wire mesh demister (9), and the nozzle (601) is located above the wire mesh demister (9).

6. The chemical packed tower separation device with automatic cleaning function according to claim 5, characterized in that, Inside the tower shell (1), below the wire mesh demister (9), a liquid distributor (3) and a packing shed (4) are also fixed in sequence.

7. The chemical packed tower separation device with automatic cleaning function according to claim 6, characterized in that, A feed pipe (2) is also connected to the side wall of the tower shell (1), and the outlet of the feed pipe (2) is located between the wire mesh demister (9) and the liquid distributor (3).

8. The chemical packed tower separation device with automatic cleaning function according to claim 6, characterized in that, The lower part of the side wall of the tower shell (1) is also connected to an air inlet pipe (5), and the outlet of the air inlet pipe (5) is located below the packing pressure shed (4).

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