Thermal steady-state salt removal equipment convenient for internal cleaning

By designing a lifting cleaning disc and a rotating brush chamber, the problems of insufficient cleaning and damage in thermal steady-state salt removal equipment are solved, achieving a highly efficient and low-damage cleaning effect.

CN224195530UActive Publication Date: 2026-05-05HANGZHOU DUONENG ENVIRONMENTAL PROTECTION TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU DUONENG ENVIRONMENTAL PROTECTION TECH
Filing Date
2025-05-10
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

Existing thermal steady-state salt removal equipment is prone to damage to the inner wall and scraper during the cleaning process, and the cleaning is not thorough.

Method used

It adopts a lifting cleaning disc combined with a rotating brush chamber, equipped with a scraper and water spray holes. Through the rotation of the brush and cleaning liquid, it integrates rinsing and scraping, reducing damage to the inner wall of the equipment and improving the cleaning effect.

Benefits of technology

It achieves thorough cleaning of thermally stable salt, reduces damage to the inner walls of the equipment and the cleaning device, and improves cleaning efficiency and effectiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of removal devices, in particular to thermal stable salt removal equipment convenient for internal cleaning, which comprises a removal equipment tank, a group of cleaning discs are arranged in the removal equipment tank in a lifting manner, and the edge parts of the cleaning discs are in contact connection with the inner wall of the removal equipment tank. The cleaning device is used for carrying out flushing, scraping and sweeping type integrated treatment on impurities such as thermal stable salt attached to the inner wall of a removal equipment tank, and the damage force to the inner wall of the removal equipment tank and a cleaning disc can be reduced while sufficient cleaning is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of desalination device technology, specifically a thermally stable salt desalination device that facilitates internal cleaning. Background Technology

[0002] Thermally stable salts (TSS) are a class of chemical substances formed in industrial processes, particularly in natural gas processing and acid gas removal. They are typically degradation products generated by the reaction of amine solutions (such as MEA, DEA, MDEA, etc.) with acid gases (such as CO2, H2S).

[0003] During the removal process, heat-stable salt, due to its viscosity, easily adheres to the inner wall of the removal equipment. Therefore, the removal equipment needs to be cleaned regularly. The common cleaning method is to install a lifting and moving scraper inside the removal equipment, which contacts the inner wall of the equipment to remove the attached impurities, followed by rinsing. In the above process, scraping is performed first, followed by rinsing. Although the inner wall of the equipment can be cleaned, the heat-stable salt has a certain hardness. When the scraper comes into contact with it, a certain friction, squeezing and impact force will be generated, which will cause some damage to the inner wall of the equipment and the scraper. Moreover, it is not conducive to the thoroughness of scraping.

[0004] Therefore, in view of the above-mentioned problems, this technical solution proposes a thermally stable salt removal device that is easy to clean internally. Summary of the Invention

[0005] The purpose of this invention is to provide a thermally stable salt removal device that is easy to clean internally, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A heat-stable salt removal device that facilitates internal cleaning includes a removal equipment tank. Inside the removal equipment tank, a set of cleaning discs is installed in a lifting manner. The edges of the cleaning discs are in contact with the inner wall of the removal equipment tank. This is used to wash, scrape, and sweep away impurities such as heat-stable salt adhering to the inner wall of the removal equipment tank in an integrated manner, ensuring thorough cleaning while reducing the damage to the inner wall of the removal equipment tank and the cleaning discs.

[0008] Symmetrical connecting plates are installed at the upper and lower centers of the cleaning tray. A piston rod is connected to the top of each connecting plate, and the top of the piston rod is connected to a cylinder fixed to the top of the removal equipment tank. The piston rod is raised and lowered by activating the cylinder, thus controlling the up-and-down movement of the cleaning tray. A set of brush chambers is rotatably installed in the center of the cleaning tray. Two rings of scraping plates are symmetrically installed radially outwards on the upper and lower sides of the brush chambers. The ends of the scraping plates contact the inner wall of the removal equipment tank. A main rotating box is located in the center of the brush chambers. A set of rotary locking valves is installed at the top center of the main rotating box. A locking valve control located inside the upper connecting plate is connected to the top of the rotary locking valve control. A connecting pipe extending to the outside of the connecting plate is connected to one side of the top of the locking valve control. This connecting pipe connects upwards to a cleaning fluid inlet pipe via a telescopic connecting pipe. The cleaning fluid inlet pipe faces outwards from the removal equipment tank and is connected to the cleaning fluid... The source connection means that, with the extension and retraction of the telescopic connecting pipe, the cleaning fluid is introduced into the main rotating box in conjunction with the cleaning fluid input pipe and connecting pipe. The main rotating box is connected to multiple sets of radially distributed cleaning fluid transmission branch pipes. The ends of the cleaning fluid transmission branch pipes are connected to the cleaning fluid diffusion chambers opened in the circumferential direction of the brush chamber. The outer circumferential wall of the cleaning fluid diffusion chamber is evenly opened with water spray holes. The cleaning fluid is sprayed towards the inner wall of the removal equipment tank through the water spray holes. At the same time, brushes are evenly arranged on the outer wall of the water spray holes. The brushes contact the inner wall of the removal equipment tank. The bottom of the main rotating box is connected to a servo motor fixed inside the lower connecting plate. Under the drive of the servo motor, the brush chamber rotates, thereby controlling the brushes and water spray holes to rotate, rinse and clean the inside of the removal equipment tank. Combined with the upper and lower scraping plates, a scraping, rinsing and sweeping cleaning mode is realized for the inside of the removal equipment tank.

[0009] Compared with the prior art, the beneficial effects of this utility model are: by designing the existing lifting scraper as a double-layer scraping structure, and then setting a rotating brush chamber with sweeping and rinsing functions inside it, the heat-stable salt impurities inside the tank of the equipment can be thoroughly and powerfully cleaned. Attached Figure Description

[0010] Figure 1 A partial structural diagram of a thermally stable salt removal device that facilitates internal cleaning;

[0011] Figure 2 A three-dimensional structural diagram of a cleaning disc in a thermally stable salt removal device that facilitates internal cleaning;

[0012] Figure 3 This is a top view of the internal structure of the cleaning disc in a thermally stable salt removal device that facilitates internal cleaning.

[0013] Figure 4 for Figure 1 A magnified structural diagram of A in the middle;

[0014] The components include: a removal equipment tank 10, a cylinder 11, a cleaning fluid input pipe 12, a telescopic connecting pipe 13, a tightening belt 14, a cleaning disc 15, a connecting plate 16, a scraping plate 17, a brush chamber disc 18, a water spray hole 19, a brush 20, a cleaning fluid transmission branch pipe 21, a main rotating box 22, a fluid distributor 23, a rotating snap-fit ​​valve 24, a snap-fit ​​valve control 25, a servo motor 26, and a cleaning fluid diffusion chamber 27. Detailed Implementation

[0015] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0016] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] Please see Figures 1-4A heat-stable salt removal device that facilitates internal cleaning includes a removal equipment tank 10. A set of cleaning discs 15 are installed inside the removal equipment tank 10 in a lifting manner. The edges of the cleaning discs 15 are in contact with the inner wall of the removal equipment tank 10. They are used to wash, scrape and clean the heat-stable salt and other impurities attached to the inner wall of the removal equipment tank 10 in an integrated manner, ensuring thorough cleaning while reducing the damage to the inner wall of the removal equipment tank 10 and the cleaning discs 15.

[0020] A connecting plate 16 is symmetrically installed at the upper and lower centers of the cleaning disc 15. A piston rod is connected to the top of the connecting plate 16 and pointing upwards. The top of the piston rod is connected to a cylinder 11 fixed to the top of the removal equipment tank 10. That is, the piston rod is driven to rise and fall by starting the cylinder 11, thereby controlling the up and down movement of the cleaning disc 15. A set of brush chamber discs 18 is rotatably arranged in the middle of the cleaning disc 15. Two rings of scraping plates 17 are symmetrically installed radially outwards on the upper and lower sides of the brush chamber discs 18. The ends of the scraping plates 17 are connected to the removal equipment tank 10. The inner wall contacts the brush chamber 18, and a set of main rotating boxes 22 are arranged in the middle of the inner wall. A set of rotating snap-fit ​​valves 24 are installed at the top center of the main rotating boxes 22. A set of snap-fit ​​valve control 25 is snap-fitted to the top of the rotating snap-fit ​​valves 24 and is located inside the upper connecting plate 16. A connecting pipe extending to the outside of the top of the connecting plate 16 is connected to the top of the snap-fit ​​valve control 25. The connecting pipe is connected to the cleaning fluid input pipe 12 through the telescopic connecting pipe 13. The cleaning fluid input pipe 12 faces the outside of the desorption equipment tank 10 and is connected to the cleaning fluid. The source connection, i.e., with the extension and retraction of the telescopic connecting pipe 13, works in conjunction with the cleaning fluid input pipe 12 and the connecting pipe to input the cleaning fluid into the main rotating box 22. The main rotating box 22 has multiple sets of radially distributed cleaning fluid transmission branch pipes 21 connected to its periphery. The ends of the cleaning fluid transmission branch pipes 21 are connected to a cleaning fluid diffusion chamber 27 located circumferentially inside the brush chamber 18. The outer circumferential wall of the cleaning fluid diffusion chamber 27 is evenly provided with water spray holes 19, through which the cleaning fluid is sprayed towards the inner wall of the removal equipment tank 10. Brushes 20 are evenly arranged on the outer wall of the water spray hole 19. The brushes 20 are in contact with the inner wall of the removal equipment tank 10. The bottom of the main rotating box 22 is connected to a servo motor 26 fixed inside the lower connecting plate 16. Under the drive of the servo motor 26, the brush cavity disk 18 is rotated, thereby controlling the brushes 20 and the water spray hole 19 to rotate, rinse and clean the inside of the removal equipment tank 10. At the same time, combined with the upper and lower scraping plates 17, a scraping, rinsing and sweeping cleaning mode is realized for the inside of the removal equipment tank 10.

[0021] In this embodiment of the invention, the vertical section of the scraping plate 17 is set as a side-mounted V-shaped structure, and its tip contacts the inner wall of the removal equipment tank 10. When the cleaning disc 15 moves up and down, it scrapes off the impurities attached to the inner wall of the removal equipment tank 10.

[0022] The lower part of the telescopic connecting pipe 13 and the bottom part of the cleaning fluid input pipe 12 are both fastened and positioned on the bottom of the piston rod or the cylinder 11 by the tightening strap 14, so as to keep the cleaning fluid input pipe 12 and the telescopic connecting pipe 13 stable when transmitting cleaning fluid;

[0023] Meanwhile, water is generally chosen as the cleaning fluid for transmission, as it can fully contact and dissolve the thermally stable salt, thereby reducing the hardness of the salt and reducing the contact impact force between the scraper 17, brush 20, and the inside of the removal equipment tank 10.

[0024] In one embodiment of the present invention, the cleaning disc 15 in this technical solution is adapted to use in some cylindrical removal equipment tanks 10, which facilitates the coordinated operation of lifting scraping with rotating rinsing and sweeping;

[0025] The surfaces of cylinder 11, piston rod, and servo motor 26 are all reinforced, typically by applying a hard chrome (Cr) or titanium nitride (TiN) coating, or by using laser cladding technology to form a corrosion-resistant alloy layer (such as a nickel-based alloy) on the surface to improve wear resistance and salt corrosion resistance. The specific protective structure or form is designed according to the actual application.

[0026] In a preferred embodiment of the present invention, a component fluid 23 is provided in the middle of the main rotating box 22. The top of the component fluid 23 is directly opposite the bottom of the rotating snap valve 24. The component fluid 23 is configured as a frustum-shaped structure. The cleaning fluid falling along the rotating snap valve 24 is guided by the component fluid 23 and flows into the surrounding cleaning fluid transmission branch pipes 21, and then quickly transfers to the cleaning fluid diffusion chamber 27.

[0027] The internal structure of the removal equipment tank 10 typically adopts a modular design and includes the following core modules: Pretreatment unit: filtration and conditioning of the feed amine solution.

[0028] Desalination reaction unit: main reaction zone, for removing thermally stable salts.

[0029] Regeneration / Recycling Unit: Regenerates desalination media or recovers useful substances.

[0030] Control system: Automated monitoring and regulation.

[0031] The height and position of the cleaning disc 15 during internal operation are designed to ensure the full removal and cleaning of thermally stable salt. The core modules are designed to avoid these obstacles, maximizing the removal space inside the removal equipment tank 10. The cleaning disc 15 is placed in the removal area and is reasonably distributed with the core modules. The specific distribution depends on the actual design and will not be elaborated here.

[0032] The working principle of this utility model is as follows: In the idle position of this device, all the aforementioned driving components, referring to power elements, electrical components, and compatible power supplies, are connected via wires. The electrical connections between the various electrical components are completed in a sequential manner. The detailed connection methods are well-known in the field. The following mainly describes the working principle and process, without further explanation of the electrical control. During operation, the starting cylinder 11 and servo motor 26 are activated. Under the connection of the piston rod, the cylinder 11 controls the cleaning disc 15 to move up and down along the inside of the removal equipment tank 10. The rotation of the servo motor 26 controls the brush chamber disk 18 to drive the brush 20 to contact and clean the inner wall of the removal equipment tank 10. At this time, the cleaning fluid is input into the cleaning fluid input pipe 12 and, under the transmission of the telescopic connecting pipe 13 and the connecting pipe, it is input into the main rotating box 22, and then transferred to the cleaning fluid diffusion chamber 27. It is then sprayed outward through the water spray hole 19 to wash away the impurities on the inner wall of the removal equipment tank 10. Then, combined with the cleaning of the brush 20 and the scraping of the scraping plate 17, multiple cleaning treatments are performed on the inner wall of the removal equipment tank 10.

[0033] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A thermally stable salt removal device that facilitates internal cleaning, characterized in that, The equipment includes a removal equipment tank (10), inside which a set of cleaning discs (15) are installed in a lifting manner. The edge of the cleaning discs (15) is in contact with the inner wall of the removal equipment tank (10). A connecting plate (16) is symmetrically installed at the upper and lower center of the cleaning discs (15). A piston rod is connected to the top of the connecting plate (16) and the top of the piston rod is connected to a cylinder (11) fixed to the top of the removal equipment tank (10). A set of brush chamber discs (18) is rotatably installed in the middle of the cleaning discs (15). Two rings of scraping plates (17) are symmetrically installed radially outward on the upper and lower sides of the brush chamber discs (18). The ends of the scraping plates (17) are in contact with the inner wall of the removal equipment tank (10). A set of main rotating boxes (22) is installed in the middle of the brush chamber discs (18). A set of rotating snap-fit ​​valves (24) is installed in the top middle of the main rotating box (22). The top of the rotating snap-fit ​​valves (24) is snap-fit ​​connected to a set of... The upper connecting plate (16) has a snap-fit ​​valve control (25) inside. The top side of the snap-fit ​​valve control (25) is connected to a connecting pipe that extends to the outside of the top of the connecting plate (16). The connecting pipe is connected to a cleaning fluid input pipe (12) through a telescopic connecting pipe (13). The cleaning fluid input pipe (12) is connected to the source of the cleaning fluid outside the removal equipment tank (10). The main rotating box (22) is connected to multiple sets of radially distributed cleaning fluid transmission branch pipes (21) around it. The end of the cleaning fluid transmission branch pipe (21) is connected to a cleaning fluid diffusion chamber (27) opened in the circumferential interior of the brush chamber plate (18). The outer wall of the cleaning fluid diffusion chamber (27) is evenly provided with water spray holes (19). The outer wall of the water spray holes (19) is evenly provided with brushes (20). The brushes (20) are in contact with the inner wall of the removal equipment tank (10). The bottom of the main rotating box (22) is connected to a servo motor (26) fixed inside the lower connecting plate (16).

2. The thermally stable salt removal device for easy internal cleaning according to claim 1, characterized in that, The vertical section of the scraper (17) is set as a side-mounted V-shaped structure, and its tip contacts the inner wall of the removal equipment tank (10).

3. The thermally stable salt removal device for easy internal cleaning according to claim 2, characterized in that, The lower side of the telescopic connecting pipe (13) and the bottom of the cleaning fluid input pipe (12) are both secured and positioned on the bottom of the piston rod or the cylinder (11) by a tightening strap (14).

4. The thermally stable salt removal device according to claim 3, which facilitates internal cleaning, is characterized in that... The surfaces of the cylinder (11), piston rod, and servo motor (26) are all reinforced.

5. The thermally stable salt removal device for easy internal cleaning according to claim 4, characterized in that, A component fluid (23) is provided in the middle of the main rotating box (22). The top of the component fluid (23) is directly opposite the bottom of the rotating snap valve (24). The component fluid (23) is configured as a frustum-shaped structure.