Energy-saving zwitterionic alkyl glycoside decoloring mixing device

Abstract

The application discloses an energy-saving zwitterionic alkyl glycoside decoloring mixing device, and belongs to the field of active agent processing. The energy-saving zwitterionic alkyl glycoside decoloring mixing device comprises a tank body, a decoloring module and a light reflection adjusting module, the inside of the tank body is internally provided with an inner tank, the inside of a sandwich layer is internally provided with the decoloring module and the light reflection adjusting module, the top of a breather hose is penetrated through and connected with an air bag, the top of the air bag is connected with another group of breather hoses, the top surface and the bottom surface of the air bag are respectively provided with upper elastic metal sheets and lower elastic metal sheets, the upper elastic metal sheets and the lower elastic metal sheets are connected through return springs, the air cushion is extruded to different degrees by the different liquid surface heights in the inner tube, the light reflection adjusting module can sequentially play corresponding adjusting effects from bottom to top, the inner wall at the top end of the liquid surface in the inner tank still has a small-area decoloring function, and the decoloring module is combined, the decoloring quality is ensured under the premise of energy saving.

Description

Technical Field

[0001] This invention relates to the field of surfactant processing, and more specifically, to an energy-saving mixing device for decolorizing zwitterionic alkyl glycosides. Background Technology

[0002] Amphoteric alkyl glycosides are drilling fluid treatment agents that are not only inexpensive to produce but also have excellent performance and good biodegradability, thus gaining widespread use. When producing and processing zwitterionic alkyl glycoside liquids, since zwitterionic alkyl glycosides are dark-colored liquids, decolorization is necessary. A common method is photocatalytic treatment, which involves irradiating the liquid with external light to achieve the desired decolorization. Therefore, during the decolorization process, zwitterionic alkyl glycosides are usually added to mixing equipment, and stirring is used to ensure consistent decolorization quality.

[0003] In existing decolorization mixing equipment, most systems arrange long, strip-shaped UV lamps of equal height around the inside of the mixing equipment to achieve the desired decolorization effect. However, the volume of zwitterionic alkyl glycosides processed per batch varies. When there is a height difference between the liquid level of the zwitterionic alkyl glycosides and the height of the mixing equipment, the UV light above the liquid level becomes ineffective, resulting in extra use of the UV lamps. Consequently, the mixing equipment does not achieve energy-saving effects during decolorization. Furthermore, even if the decolorization height is the same as the liquid level, the liquid level inside the mixing equipment sloshes during the mixing process, causing some liquid to adhere to the inner wall of the mixing equipment and preventing the decolorization process from being completed, thus affecting the quality of decolorization.

[0004] Therefore, we propose an energy-saving mixing device for the decolorization of zwitterionic alkyl glycosides to solve the above problems. Summary of the Invention

[0005] 1. Technical problems to be solved

[0006] To address the problems existing in the prior art, the present invention aims to provide an energy-saving mixing device for decolorizing zwitterionic alkyl glycosides. This device utilizes a decolorization module to maintain consistency between the decolorization height and the liquid level, reducing the additional workload of the UV lamp column and achieving energy savings. Simultaneously, by utilizing the varying degrees of compression of the air cushion due to different liquid levels inside the inner tube, the reflective adjustment module can sequentially adjust the light from bottom to top, ensuring that the inner wall at the top of the liquid level inside the inner tank still has a small area of ​​decolorization function, thereby guaranteeing the quality of decolorization.

[0007] 2. Technical Solution

[0008] To solve the above problems, the present invention adopts the following technical solution.

[0009] An energy-saving mixing device for decolorizing zwitterionic alkyl glycosides includes a tank, a decolorizing module, and a reflective adjustment module. An inner tank is installed inside the tank, and the outer side of the inner tank and the inner side of the tank form a sandwich. The decolorizing module and the reflective adjustment module are installed inside the sandwich, and the decolorizing module is located inside the reflective adjustment module.

[0010] The reflective adjustment module comprises a ventilation hose, an upper elastic metal sheet, a return spring, a lower elastic metal sheet, an air outlet, and an airbag. The top of the ventilation hose is connected to the airbag, and the top of the airbag has a 1mm air outlet. The top of the airbag is connected to another set of ventilation hoses. The top and bottom surfaces of the airbag are respectively equipped with an upper elastic metal sheet and a lower elastic metal sheet, which are connected by a return spring. The upper and lower elastic metal sheets are located on one side of the ventilation hose on the surface of the airbag.

[0011] The surfaces of the upper and lower elastic metal sheets that are close to each other are coated with reflective coatings. By utilizing the different liquid levels inside the inner tube, the air cushion is compressed to varying degrees, allowing the reflective adjustment module to adjust the light from bottom to top. This ensures that the inner wall at the top of the liquid level inside the inner tank still has a small area of ​​decolorization function. Combined with the decolorization module, this ensures decolorization quality while maintaining energy efficiency.

[0012] Furthermore, the decolorization module consists of a pressure switch and an ultraviolet lamp column. The pressure switch is installed on the surface of the ultraviolet lamp column and is electrically connected to the ultraviolet lamp column. Each set of decolorization modules is stacked to form a decolorization light column. The decolorization light column is at the same height as the tank. The decolorization module ensures that the decolorization height is consistent with the liquid level, thereby reducing the extra work of the ultraviolet lamp column and achieving an energy-saving effect.

[0013] Furthermore, an air cushion is installed on the bottom wall of the tank, the top of the air cushion is connected to the bottom of the inner tank, and the air cushion is connected through the ventilation hose at the bottom of each set of reflective adjustment modules.

[0014] Furthermore, the inner wall of the tank is equipped with a reflective ring layer, which is located on the outside of the interlayer. This reflects the ultraviolet light leaking out from the gap between the upper and lower elastic metal sheets back into the inner tank, thus making full use of the light and enhancing the energy-saving effect.

[0015] Furthermore, the inner tank consists of a through hole, a liquid storage chamber, a transparent elastic cover, and a decolorizing tank body. The decolorizing tank body is made of PP plastic, and a transparent elastic cover made of TPU material is installed on the outside of the decolorizing tank body. The inner side of the transparent elastic cover and the outer side of the decolorizing tank body form a liquid storage chamber. The inner wall of the decolorizing tank body is provided with a through hole, and the outer surface of the transparent elastic cover is in contact with the surface of the pressure switch, providing support for the transfer of liquid inside the inner tank, thereby providing prerequisite operation support for triggering the pressure switch.

[0016] Furthermore, a sealing top cover is installed on the top of the tank, and a rotary motor is installed at the center of the top of the sealing top cover. The output end of the rotary motor is connected to a round rod, and equidistant stirring rods are installed on the surface of the round rod. Through stirring and mixing, the liquid can be uniformly decolorized.

[0017] Furthermore, both the round rod and the stirring rod are located inside the inner tank. The round rod has a through groove inside, and a feeding hose is installed inside the through groove to provide feeding support for the sampling tube to perform sampling operations.

[0018] Furthermore, a sampling tube is installed on one side of the top of the sealing top cover, and a sealing piston is slidably installed on the inner wall of the sampling tube. The diameter of the sealing piston is the same as the inner diameter of the sampling tube. A lifting rod is installed on the top of the sealing piston, and one end of the feeding hose extends into the interior of the sampling tube.

[0019] Furthermore, a discharge pipe is installed through the surface of the tank, and the tail end of the discharge pipe extends into the interior of the inner tank. A valve is installed on the surface of the discharge pipe, and a filter screen is installed inside the discharge pipe to intercept and break up the foam formed during the mixing process, so as to ensure the quality of the discharged material.

[0020] Furthermore, the reflective adjustment module is arranged around the surface of the air cushion, and the decolorization module is arranged around the outside of the inner tank.

[0021] 3. Beneficial effects

[0022] Compared with the prior art, the advantages of this invention are:

[0023] (1) This invention is equipped with a reflective adjustment module, an air cushion, and a decolorization module. The decolorization module keeps the decolorization height consistent with the liquid level to reduce the extra work of the ultraviolet lamp column and achieve energy saving. The different liquid levels inside the inner tube cause different degrees of compression on the air cushion, so that the reflective adjustment module can perform corresponding adjustment effects from bottom to top. This ensures that the inner wall at the top of the liquid level inside the inner tank still has a small area of ​​decolorization function, thereby ensuring the quality of decolorization. Under the premise of ensuring energy saving, the quality of decolorization is guaranteed.

[0024] (2) The present invention is equipped with a sampling tube, a feeding hose, a lifting rod and a sealing piston. The lifting rod is pulled upward, so that the liquid inside the inner tank is transferred to the inside of the sampling tube through the feeding hose, so as to check the decolorization state of the liquid inside the sampling tube and determine the degree of decolorization reaction.

[0025] (3) By setting the reflective ring layer, the present invention can reflect the ultraviolet light leaking out from the gap between the upper and lower elastic metal sheets back into the inner tank, so as to make full use of the light and enhance the energy-saving effect.

[0026] (4) The present invention installs a filter screen inside the discharge pipe to intercept and break the foam formed during the mixing process, so as to ensure the quality of the discharge. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the tank body, inner tank, decolorization module, and air cushion installation structure of the present invention.

[0029] Figure 3 This is a schematic diagram of the installation structure of the air cushion and reflective adjustment module of the present invention;

[0030] Figure 4 This is a schematic diagram showing the state of the decolorization module of the present invention when the liquid level is different during operation;

[0031] Figure 5 This is a schematic diagram of the reflective adjustment module structure of the present invention;

[0032] Figure 6 This is a schematic diagram showing the working state of the reflective adjustment module of the present invention;

[0033] Figure 7 This is a schematic diagram of the installation structure of the tank body, inner tank, decolorization module, and reflective adjustment module of the present invention.

[0034] Figure 8 This is a schematic diagram of the installation structure of the inner tank, through hole, liquid storage chamber, transparent elastic cover and decolorizing tank of the present invention.

[0035] Figure 9 This is a schematic diagram of the installation structure of the feeding hose, round rod, and stirring rod of the present invention.

[0036] Figure 10 This is a schematic diagram of the internal structure of the sampling tube of the present invention.

[0037] Explanation of the labels in the diagram:

[0038] 1. Tank body; 2. Inner tank; 3. Sealed top cover; 4. Rotary motor; 5. Stirring rod; 6. Decolorization module; 7. Pressure switch; 8. UV lamp column; 9. Reflective adjustment module; 10. Ventilation hose; 11. Upper elastic metal sheet; 12. Return spring; 13. Lower elastic metal sheet; 14. Vent hole; 15. Air cushion; 16. Discharge pipe; 17. Sampling tube; 18. Round rod; 19. Feeding hose; 20. Lifting rod; 21. Sealing piston; 22. Reflective coating; 23. Filter screen; 24. Reflective ring layer; 25. Through hole; 26. Liquid storage chamber; 27. Transparent elastic cover; 28. Decolorization tank body; 29. ​​Airbag. Detailed Implementation

[0039] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0040] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for 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. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0041] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0042] Example 1:

[0043] Please see Figure 1-3 and Figures 5-7 An energy-saving mixing device for decolorizing zwitterionic alkyl glycosides includes a tank 1, a decolorizing module 6, and a reflective adjustment module 9. An inner tank 2 is installed inside the tank 1. The outer side of the inner tank 2 and the inner side of the tank 1 form a sandwich. The decolorizing module 6 and the reflective adjustment module 9 are installed inside the sandwich, and the decolorizing module 6 is located inside the reflective adjustment module 9.

[0044] The reflective adjustment module 9 comprises a ventilation hose 10, an upper elastic metal sheet 11, a return spring 12, a lower elastic metal sheet 13, an air outlet 14, and an airbag 29. The top of the ventilation hose 10 is connected to the airbag 29, and the top of the airbag 29 is provided with a 1mm air outlet 14. The top of the airbag 29 is connected to another set of ventilation hoses 10. The upper elastic metal sheet 11 and the lower elastic metal sheet 13 are respectively installed on the top and bottom surfaces of the airbag 29. The upper elastic metal sheet 11 and the lower elastic metal sheet 13 are connected by the return spring 12. The upper elastic metal sheet 11 and the lower elastic metal sheet 13 are located on one side of the ventilation hose 10 on the surface of the airbag 29.

[0045] A reflective coating 22 is installed on the surfaces of the upper elastic metal sheet 11 and the lower elastic metal sheet 13 that are close to each other. An air cushion 15 is installed on the bottom wall of the tank body 1. The top of the air cushion 15 is connected to the bottom of the inner tank 2. The air cushion 15 is connected to the lowest ventilation hose 10 of each set of reflective adjustment modules 9. The reflective adjustment modules 9 are arranged around the surface of the air cushion 15. The decolorization module 6 is arranged around the outside of the inner tank 2.

[0046] Specifically, when zwitterionic alkyl glycoside liquid is injected into the inner tank 2, the squeezing force on the air cushion 15 increases with the increase of the injection volume. This is because the more gas is delivered through the air cushion 15 into the lowermost ventilation hose 10 of each set of reflective adjustment modules 9, the higher the upper elastic metal sheet 11 and lower elastic metal sheet 13 inside each set of reflective adjustment modules 9 can open. This results in a corresponding reflective expansion with the liquid surface inside the inner tank 2, allowing the zwitterionic alkyl glycoside liquid that adheres to the inner wall of the decolorizing tank 28 above the liquid surface during the stirring and mixing process to still undergo corresponding photocatalytic decolorization treatment. This reduces the working height of the decolorizing light column, thereby reducing the number of UV lamp columns 8 to achieve energy saving.

[0047] Since the diameter of the air outlet 14 is 1mm, before the airbag 29 inflates, the gas passage between the airbag 29 and the upper ventilation hose 10 is not unobstructed. When the gas inside the ventilation hose 10 flows upward, it enters the airbag 29, causing the airbag 29 to inflate. This stretches and enlarges the diameter of the air outlet 14 at the top of the airbag 29, thereby opening up the gas passage between the airbag 29 and the upper ventilation hose 10, forming a self-expanding expansion effect.

[0048] As the airbag 29 expands, the tilt angle between the upper elastic metal sheet 11 and the lower elastic metal sheet 13 increases, thereby increasing the area of ​​the ultraviolet lamp column 8 reflected from the surfaces of the upper elastic metal sheet 11 and the lower elastic metal sheet 13. This makes the height of the reflected surface greater than the height of the liquid level inside the inner tank 2, thus compensating for the insufficient decolorization caused by the working height of the decolorizing light column being the same as the height of the liquid level inside the inner tank 2. It can also effectively reduce the use of additional ultraviolet lamp columns 8, ensuring the decolorization effect while achieving energy saving.

[0049] Please see Figure 2 , Figure 4 and Figure 8 The decolorization module 6 consists of a pressure switch 7 and an ultraviolet lamp column 8. The pressure switch 7 is installed on the surface of the ultraviolet lamp column 8 and is electrically connected to the ultraviolet lamp column 8. Each set of decolorization modules 6 is stacked to form a decolorization light column, which is the same height as the tank 1. The inner tank 2 consists of a through hole 25, a liquid storage chamber 26, a transparent elastic cover 27, and a decolorization tank body 28. The decolorization tank body 28 is made of PP plastic. A transparent elastic cover 27 is installed on the outside of the decolorization tank body 28. The transparent elastic cover 27 is made of TPU material. The inner side of the transparent elastic cover 27 and the outer side of the decolorization tank body 28 form a liquid storage chamber 26. The inner wall of the decolorization tank body 28 is provided with a through hole 25. The outer surface of the transparent elastic cover 27 is in contact with the surface of the pressure switch 7.

[0050] Specifically, the storage chamber 26 has a width of 1 cm. When the zwitterionic alkyl glycoside liquid to be decolorized is injected into the decolorizing tank 28, the liquid inside the decolorizing tank 28 enters the storage chamber 26 through the through hole 25 and is kept at the same height as the liquid level inside the decolorizing tank 28. At this time, the liquid inside the storage chamber 26 pushes the transparent elastic cover 27 outward, causing the transparent elastic cover 27 to press the pressure switch 7. Subsequently, the pressure switch 7 is activated, causing the ultraviolet lamp column 8 electrically connected to it to light up, so that the working height of the decolorizing light column is consistent with the height of the liquid level being decolorized, reducing the extra work of the ultraviolet lamp column 8 and achieving an energy-saving effect.

[0051] Please see Figure 7 The inner wall of the tank 1 is equipped with a reflective ring layer 24, and the reflective ring layer 24 is located on the outside of the interlayer.

[0052] Specifically, when the upper elastic metal sheet 11 and the lower elastic metal sheet 13 expand away from each other, the ends of the two near the return spring 12 approach each other, but they cannot form a completely closed state. Some ultraviolet light is still projected onto the surface of the reflective ring layer 24. At this time, after being reflected by the reflective ring layer 24, the ultraviolet light can be reflected back into the interior of the inner tank 2, which plays a role in full utilization and enhances the energy-saving effect.

[0053] A sealing top cover 3 is installed on the top of the tank body 1. A rotary motor 4 is installed at the center of the top of the sealing top cover 3. A round rod 18 is connected to the output end of the rotary motor 4. Stirring rods 5 are installed on the surface of the round rod 18 at equal intervals.

[0054] Specifically, during the decolorization process, the rotary motor 4 is started to drive the round rod 18 to rotate, which in turn drives the stirring rod 5 to rotate, so that the liquid inside the inner tank 2 is in a stirring and mixing state, thereby ensuring the consistency and uniformity of the decolorization effect.

[0055] Please see Figure 9 and Figure 10 Both the round rod 18 and the stirring rod 5 are located inside the inner tank 2. The round rod 18 has a through groove inside, and a feeding hose 19 is installed inside the through groove. A sampling tube 17 is installed on one side of the top of the sealing top cover 3. A sealing piston 21 is slidably installed on the inner wall of the sampling tube 17, and the diameter of the sealing piston 21 is the same as the inner diameter of the sampling tube 17. A lifting rod 20 is installed on the top of the sealing piston 21, and one end of the feeding hose 19 extends into the interior of the sampling tube 17.

[0056] Specifically, during the decolorization process, the lifting rod 20 is pulled upwards, which causes the liquid inside the inner tank 2 to be transferred to the inside of the sampling tube 17 through the feeding hose 19, thereby checking the decolorization status of the liquid inside the sampling tube 17 and judging the degree of progress of the decolorization reaction.

[0057] A discharge pipe 16 is installed through the surface of the tank 1, and the tail end of the discharge pipe 16 extends into the interior of the inner tank 2. A valve is installed on the surface of the discharge pipe 16, and a filter screen 23 is installed inside the discharge pipe 16.

[0058] Specifically, after decolorization, the liquid inside the inner tank 2 can be transferred through the discharge pipe 16. During this process, the filter screen 23 is used to intercept and break the foam formed during the stirring and mixing process to ensure the quality of the discharged material.

[0059] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. An energy-saving zwitterionic alkyl glycoside decoloring mixing device, comprising a tank body (1), a decoloring module (6) and a light reflection adjusting module (9), characterized in that: The inside of the tank body (1) is internally provided with an inner tank (2), the outer side of the inner tank (2) and the inner side of the tank body (1) form a sandwich, the inside of the sandwich is internally provided with a decolorization module (6) and a light reflection adjusting module (9), and the decolorization module (6) is located at the inner side of the light reflection adjusting module (9). The light reflection adjusting module (9) comprises a ventilation hose (10), an upper elastic metal sheet (11), a reset spring (12), a lower elastic metal sheet (13), an air outlet hole (14) and an air bag (29), the top of the ventilation hose (10) is connected with the air bag (29), the top of the air bag (29) is provided with an air outlet hole (14) of 1mm, the top of the air bag (29) is connected with another set of ventilation hose (10), the top surface and the bottom surface of the air bag (29) are respectively provided with the upper elastic metal sheet (11) and the lower elastic metal sheet (13), the upper elastic metal sheet (11) and the lower elastic metal sheet (13) are connected through the reset spring (12), and the upper elastic metal sheet (11) and the lower elastic metal sheet (13) are located on one side of the ventilation hose (10) on the surface of the air bag (29). The mutually close surfaces of the upper elastic metal sheet (11) and the lower elastic metal sheet (13) are provided with a light reflection coating (22). The decolorization module (6) comprises a pressure switch (7) and a UV lamp column (8), the surface of the UV lamp column (8) is provided with the pressure switch (7), and the pressure switch (7) is electrically connected with the UV lamp column (8), each set of the decolorization module (6) is stacked up and down to form a decolorization light column, and the decolorization light column is in the same height with the tank body (1). The bottom wall of the tank body (1) is provided with an air cushion (15), the top of the air cushion (15) is connected with the bottom of the inner tank (2), and the air cushion (15) is connected with the lowermost ventilation hose (10) of each set of the light reflection adjusting module (9).

2. The energy-saving zwitterionic alkyl glycoside decoloring mixing device according to claim 1, characterized in that: The inner wall of the tank body (1) is provided with a light reflection ring layer (24), and the light reflection ring layer (24) is located at the outer side of the sandwich.

3. The energy-saving zwitterionic alkyl glycoside decoloring mixing device according to claim 1, characterized in that: The inner tank (2) comprises a through hole (25), a liquid storage cavity (26), a transparent elastic cover (27) and a decolorization tank body (28), the decolorization tank body (28) is made of PP plastic, the outer side of the decolorization tank body (28) is provided with the transparent elastic cover (27), the transparent elastic cover (27) is made of TPU material, the inner side of the transparent elastic cover (27) and the outer side of the decolorization tank body (28) form the liquid storage cavity (26), the inner wall of the decolorization tank body (28) is provided with the through hole (25), and the outer surface of the transparent elastic cover (27) is in contact with the surface of the pressure switch (7).

4. The energy-saving zwitterionic alkyl glycoside decoloring mixing device according to claim 1, characterized in that: The top of the tank body (1) is provided with a sealing top cover (3), the top center of the sealing top cover (3) is provided with a rotary motor (4), the output end of the rotary motor (4) is connected with a circular rod (18), and the surface of the circular rod (18) is provided with equidistantly arranged stirring rods (5).

5. The energy-saving zwitterionic alkyl glycoside decoloring mixing device according to claim 4, characterized in that: The circular rod (18) and the stirring rod (5) are located in the inside of the inner tank (2), the inside of the circular rod (18) is provided with a through slot, and the inside of the through slot is provided with a feeding hose (19).

6. The energy-saving zwitterionic alkyl glycoside decoloring mixing device according to claim 5, characterized in that: A sampling tube (17) is installed on one side of the top of the sealing top cover (3). A sealing piston (21) is slidably installed on the inner wall of the sampling tube (17), and the diameter of the sealing piston (21) is the same as the inner diameter of the sampling tube (17). A lifting rod (20) is installed on the top of the sealing piston (21), and one end of the feeding hose (19) extends into the interior of the sampling tube (17).

7. The energy-saving zwitterionic alkyl glycoside decoloring mixing device according to claim 1, characterized in that: A discharge pipe (16) is installed through the surface of the tank (1), and the tail end of the discharge pipe (16) extends into the interior of the inner tank (2). A valve is installed on the surface of the discharge pipe (16), and a filter screen (23) is installed inside the discharge pipe (16).

8. The energy-saving zwitterionic alkyl glycoside decoloring mixing device according to claim 1, characterized in that: The reflective adjustment module (9) is arranged around the surface of the air cushion (15), and the decolorization module (6) is arranged around the outside of the inner tank (2).

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