A spiral filter assembly and a reactor cleaning device

Abstract

This utility model discloses a spiral filter assembly and a reactor cleaning device. The spiral filter assembly includes a shell, which is hollow to form a cylindrical filter cavity. The filter element is cylindrical and coaxially disposed in the filter cavity, dividing the filter cavity into a liquid cavity located outside the filter element and an outlet cavity located inside the filter element. The inlet cavity and outlet cavity form an inlet and an outlet at the same end of the filter cavity, respectively. At least a portion of the filter element located inside the filter cavity is configured as a filter structure. The inlet cavity and outlet cavity are connected through the filter structure. A spiral guide is also provided in the outlet cavity. The spiral guide is spirally fixed along the length of the filter element to form a channel spirally coiled along the length of the filter element. The reactor cleaning device with this spiral filter assembly also includes a tube and a spray assembly. One end of the tube is connected to the spray assembly, and the other end extends from the outlet into the outlet cavity, ensuring normal spraying when using a small amount of cleaning agent.

Description

Technical Field

[0001] This utility model belongs to the technical field of cleaning devices, specifically, it relates to a spiral filter assembly and a reactor cleaning device. Background Technology

[0002] When switching production raw materials or producing different types of products, it is usually necessary to clean the reactor beforehand to avoid contamination caused by the mixing of residues in the reactor with the replaced raw materials. However, for industrial production, the method of injecting a large amount of cleaning fluid significantly increases the cleaning cost of the reactor.

[0003] To address this issue, manufacturers typically clean reactors using manual scrubbing, spray rinsing, or a combination of both. While manual scrubbing reduces the amount of cleaning fluid used to some extent, it is difficult to clean and the cleaned material is hard to fully recover. Spray rinsing reduces the difficulty of cleaning and facilitates material recovery, but the amount of cleaning fluid used is still relatively large, limiting its effectiveness in saving cleaning fluid.

[0004] To reduce the amount of cleaning fluid used in spray rinsing, a common approach is to recycle the cleaning fluid sprayed into the reactor. This method combines the advantages of spray rinsing by exporting the cleaning fluid from the outlet at the bottom of the reactor and collecting it in a filtration device, while also reducing the amount of cleaning fluid used through recycling. However, during pumping, residues in the reactor may enter the pump along with the cleaning fluid, causing pump malfunction, or enter the spray nozzles and cause them to become clogged, directly affecting the smooth progress of cleaning. Furthermore, the above method still requires a certain liquid level in the reactor, limiting its effectiveness in saving cleaning fluid.

[0005] In view of this, this utility model is hereby proposed. Utility Model Content

[0006] To address one of the problems in the prior art, this invention provides a spiral filter assembly. The spiral filter assembly includes an inlet chamber and an outlet chamber separated by a filter element. A guide element is provided in the inlet chamber to guide the rinsed residue to accumulate at the bottom of the inlet chamber. The cleaning agent enters the outlet chamber through the filter structure on the filter element, and the outlet chamber facilitates the reuse of the cleaning agent.

[0007] This utility model also provides a reactor cleaning device with the spiral filter assembly. By drawing cleaning agent from the liquid outlet chamber for circulation, a small amount of cleaning agent is sufficient to complete the circulation spray. The cleaning effect will not be affected by the inability to achieve stable extraction and circulation of cleaning agent due to the low liquid level of the cleaning agent.

[0008] To solve the above-mentioned technical problems, the first aspect of this utility model provides a spiral filter assembly, characterized in that it includes,

[0009] The outer shell is hollow and contains a cylindrical filter chamber.

[0010] The filter element is a hollow cylinder and is coaxially arranged in the filter chamber, dividing the filter chamber into an inlet chamber located outside the filter element and an outlet chamber located inside the filter element. The inlet chamber and the outlet chamber form an inlet and an outlet at the same end of the filter chamber, respectively. At least a portion of the filter element on the side away from the outlet is configured as a filter structure that connects the inlet chamber and the outlet chamber.

[0011] The spiral guide is spirally fixed in the liquid inlet chamber along the length of the filter element, forming a channel that spirals along the length of the filter element.

[0012] Furthermore, the spiral guide is inclined towards the bottom of the filter chamber in a direction away from the filter element.

[0013] Furthermore, the spiral guide is connected to the filter element and abuts against the inner circumferential wall of the filter chamber.

[0014] Furthermore, the outer shell includes a cavity and a cover. One end of the cavity is open, and the cover is detachably connected to the cavity. The cover opening cooperates with the cavity to form a filter chamber, and the liquid inlet and liquid outlet are formed on the cover.

[0015] Furthermore, the cover has a circular opening at its center, the size of which is adapted to the diameter of the filter element, and the filter element is detachably connected to the cover through the circular opening.

[0016] Furthermore, the end of the filter element that forms the liquid outlet is also provided with a connector. The diameter of the connector is larger than the diameter of the filter element. When the filter element is installed in place, the filter structure is located on the side of the cover facing the inside of the filter chamber.

[0017] Furthermore, a portion of the cover protrudes into the filter chamber around the liquid outlet, and a groove is formed on the side of the cover away from the filter chamber. One end of the spiral guide abuts against the protrusion, and the liquid inlet is located in the groove.

[0018] Furthermore, there is a gap between the end of the filter element away from the liquid outlet and the bottom of the filter chamber.

[0019] Furthermore, the helical guide is made of a material with elastic deformation capability.

[0020] The second aspect of this utility model provides a reactor cleaning device, including a spraying assembly, a pump body, and the aforementioned spiral filter assembly. The pump body is connected to the liquid outlet of the spiral filter assembly, and pumps the cleaning liquid from the liquid outlet to the spraying assembly.

[0021] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.

[0022] 1. The filtration chamber is divided into an inlet chamber and an outlet chamber by the filter element. A spiral guide is installed in the inlet chamber. The residue entering the filtration chamber is guided by the spiral guide and transported to the bottom of the filtration chamber by the cleaning agent. The cleaning agent can enter the outlet chamber through the filter structure on the filter element, thus achieving filtration of the cleaning agent. When in use, this spiral filter assembly can be used in conjunction with the spray assembly to form a complete set of reactor cleaning device. The spray assembly draws the cleaning agent from the outlet, which can provide sufficient cleaning agent for the continuous spraying of the spray assembly with a small amount of cleaning agent. Moreover, the pressure difference between the inside and outside of the filtration chamber is further increased during the drawing process, which further improves the filtration effect.

[0023] 2. The spiral guide is inclined towards the bottom of the filter chamber along the direction away from the filter element. That is, the side of the spiral guide near the filter element and the side near the inner peripheral wall of the filter chamber are not on the same horizontal plane. While forming a spiral channel, the side of the spiral channel near the inner peripheral wall of the filter chamber is lower than the side near the filter element. During the process of guiding the cleaning agent and residue, the residue tends to accumulate on the side near the inner peripheral wall of the filter chamber. This effectively prevents the cleaning agent from carrying residues close to or adhering to the surface of the filter structure during the process of entering the liquid outlet chamber. This improves the continuous filtration performance of the spiral filter assembly and enhances the user experience.

[0024] 3. The spiral guide is made of materials such as metal, plastic, and rubber with elastic deformation capability. It is connected to the filter element and abuts against the inner peripheral wall of the filter chamber. As the amount of residue accumulated near the inner peripheral wall of the filter chamber increases, the pressure exerted on the spiral guide gradually increases, causing the spiral guide to deform and form a gap between it and the inner peripheral wall of the filter chamber. The residue can fall through the gap, giving the spiral guide a certain self-cleaning function and allowing the residue to be better collected at the bottom of the filter chamber, further improving the continuous filtration performance.

[0025] 4. With the inlet and outlet of the spiral filter assembly, it can be simply fixed at the vertically positioned outlet of the reactor during actual use. Compared to traditional cleaning equipment that allows for the recycling of cleaning fluid, installation is more convenient. The filter element is designed as a hollow cylindrical structure with one open end. Whether the tube of the spray assembly extends into the filter element or is connected to the end of the filter element, the cleaning fluid can be reused smoothly. The requirements for the liquid level in the reactor are lower, further reducing the amount of cleaning fluid used to clean the reactor and lowering the cleaning cost.

[0026] 5. In the reaction vessel cleaning device of this utility model, the spiral filter component is located upstream of the spray component, which effectively prevents residues from being drawn into the spray component, causing damage to the pump body or clogging of the nozzle. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the first structure of the spiral filter assembly described in this utility model;

[0028] Figure 2 yes Figure 1 A cross-sectional view of the spiral filter assembly shown;

[0029] Figure 3 This is a schematic diagram of the second structure of the spiral filter assembly described in this utility model;

[0030] Figure 4 yes Figure 3 A cross-sectional view of the spiral filter assembly shown;

[0031] Figure 5 yes Figure 3 A perspective view of the spiral filter assembly shown.

[0032] Figure 6 This is a schematic diagram of the reactor cleaning device described in this utility model when it is installed inside the reactor.

[0033] In the diagram: 1. Outer shell; 11. Liquid inlet; 12. Groove; 2. Filter element; 21. Liquid outlet; 22. Filter structure; 3. Spiral guide; 4. Spray assembly; 5. Pipeline; 6. Reactor; 61. Discharge outlet. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0035] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0036] 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] This utility model provides a spiral cleaning assembly, such as... Figures 1 to 5 As shown, the filter includes a housing 1, which is hollow and has a cylindrical filter chamber. A filter element 2 is provided inside the filter chamber. The filter element 2 is hollow and cylindrical, and is coaxially arranged inside the filter chamber to form an outlet chamber located inside the filter element 2 and an inlet chamber located outside the filter element 2. The inlet chamber and the outlet chamber are respectively formed at the same end of the filter chamber as an inlet 11 and an outlet 21. At least part of the side of the filter element 2 away from the outlet 21 is configured as a filter structure 22 that connects the inlet chamber and the outlet chamber. A spiral guide 3 is spirally fixed in the inlet chamber along the length of the filter element 2 to form a channel spirally coiled along the length of the filter element 2.

[0038] Specifically, in the following embodiments, unless otherwise specified, the filter structure 22 is preferably configured as a filter screen, which is made of a material with shape retention capability, preferably metal, plastic or rubber. The above preferred solution fully considers that the filter element 2 not only has a filtering function, but also needs a certain strength to support the overall shape of the liquid outlet chamber in order to ensure the smooth extraction of cleaning liquid in the liquid outlet chamber. Unless otherwise specified, the following embodiments will use a metal filter structure 22 as an example for illustration.

[0039] Reactor cleaning device with the above-mentioned spiral cleaning components, such as Figure 6 As shown, it also includes a spray assembly 4 and the spiral cleaning assembly described in the above scheme. The spray assembly 4 has a pipe for absorbing cleaning liquid. The pipe extends from the outlet 21 of the spiral filter assembly into the outlet chamber, transferring the cleaning liquid to the spray assembly 4 and spraying it again into the reactor 6, thus realizing the reuse of the cleaning liquid in the reactor 6. In use, the operator first opens the top cover of the reactor 6, then places the spiral cleaning assembly in the reactor 6, embedding it into the outlet 61 at the bottom of the reactor 6, and then extends the pipe from the inlet 11 of the spiral filter assembly into the outlet chamber, thereby being able to draw up the cleaning liquid filtered by the filter element 2 from the outlet chamber and spray it again.

[0040] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0041] Example 1

[0042] As one embodiment of the present invention, this embodiment provides a spiral filter assembly.

[0043] In this embodiment, as Figure 1 and Figure 2 As shown, the outer shell 1 of the spiral filter assembly is cylindrical in shape, with a hollow interior forming a filter chamber. The filter chamber is coaxially arranged with the outer shell 1, and a circular opening is provided at the center of one end of the outer shell 1. Figure 2As shown, the filter element 2 is coaxially disposed inside the filter chamber, with one end passing through a circular opening to form an outlet 21 connecting the inside of the filter chamber to the outside. To prevent the filter element 2 from shifting or falling off, the filter element 2 is inserted through the circular opening and abuts against the peripheral wall of the circular opening, that is, the outer diameter of the filter element 2 matches the diameter of the circular opening. As one embodiment of this invention, the portion of the filter element 2 located inside the filter chamber is configured as a filter structure 22, and the inlet chamber and outlet chamber are connected through the filter structure 22. The spiral guide 3 is located inside the inlet chamber and surrounds the filter along the axial direction of the filter chamber. The component 2 is spirally coiled to form a spiral channel from one end of the filter chamber to the other end. The end near the liquid outlet 21 extends to abut against the end face of the outer shell 1. An inlet 11 is formed on this end face to connect the spiral channel with the outside of the filter chamber. The inlet 11 is located on the rear side of the point where the spiral guide 3 abuts against the outer shell 1, close to the abutment point, along the spiral direction of the spiral guide 3. In order to avoid displacement of the spiral guide 3 and affect the filtration effect, in this embodiment, the spiral guide 3 is connected to the inner peripheral wall of the filter chamber, and the side near the filter component 2 is connected to the surface of the filter component 2.

[0044] Furthermore, in this embodiment, there is a gap between the end of the filter element 2 away from the outlet 21 and the bottom wall of the filter chamber. This arrangement allows for a larger space between the spiral guide 3 and the bottom wall of the filter chamber, which can accommodate more residues, reduce the cleaning frequency of the spiral filter assembly, and improve the user experience. Alternatively, as an alternative to the above solution, during filtration, the cleaning liquid mixed with residues enters the filter chamber from the inlet 11, and the residues flow along the spiral guide 3 towards the bottom of the filter chamber under the influence of the cleaning liquid. During the flow towards the bottom, the cleaning liquid separates from the residues and enters the outlet chamber from the filter structure 22. The residues are collected at the bottom of the filter chamber, thus achieving the separation of residues and cleaning liquid. The cleaning liquid entering the outlet chamber can be directly extracted by the pipe 5 extending from the outlet 21 into the outlet chamber for recycling.

[0045] Example 2

[0046] As another embodiment of the present invention, this embodiment provides a spiral filter assembly, which differs from the first embodiment in that the spiral guide 3 is arranged differently.

[0047] In this embodiment, the spiral guide 3 is configured to be connected only to the inner peripheral wall of the filter chamber, with its free end abutting against the surface of the filter element 2. Due to the presence of the free end, when a large amount of residue accumulates on the surface of the spiral guide 3, it can be squeezed and deformed under the impact of the cleaning fluid and gravity, and then fall out from the gap between the spiral guide 3 and the inner peripheral wall of the filter chamber or the surface of the filter element 2, effectively avoiding blockage of the spiral channel.

[0048] Alternatively, as an alternative to the above solution, the spiral guide 3 can be configured to be connected only to the surface of the filter element 2, with its free end abutting against the inner peripheral wall of the filter chamber. In this case, with the free end of the spiral guide 3 abutting against the inner peripheral wall of the filter chamber, the residue is more likely to accumulate on the side near the inner peripheral wall of the filter chamber due to the centrifugal force provided by the spiral channel, which can better prevent clogging.

[0049] Example 3

[0050] As another embodiment of the present invention, this embodiment provides a spiral filter assembly, which is further improved based on embodiment two as follows.

[0051] In this embodiment, the outer shell 1 includes a cavity and a cover forming one end wall of the outer shell 1. The cover and the cavity are detachably connected, and the two cooperate to form a filter cavity. The filter element 2 is integrally formed with the cover, and the spiral guide 3 is connected to the surface of the filter element 2. That is, the cover, the filter element 2, and the spiral guide 3 can be disassembled as a whole, which facilitates the cleaning of the spiral filter assembly. The spiral guide 3 has a fixing member on the side near the spiral axis. As one embodiment, the fixing member is a rubber strip. The spiral guide 3 is embedded in the rubber strip and connected to the filter element 2 through the rubber strip. In order to prevent the spiral guide 3 from being displaced, a limiting groove 12 is provided on the periphery of the guide to limit the rubber strip. When the spiral guide 3 is installed in place, the rubber strip is partially embedded in the groove 12. Correspondingly, the filter element 2 can also be detachably connected to the cover. In the above scheme, the cover, the filter element 2, and the spiral guide 3 are detachably set, which is more conducive to the operator to thoroughly clean the spiral filter assembly, and the modular setting facilitates replacement and maintenance.

[0052] To improve filtration efficiency, such as Figure 3 As shown, the cover has a raised structure that protrudes towards the side of the filter chamber, and a corresponding groove 12 is formed on the side of the cover away from the filter chamber. When the spiral guide 3 is installed in place, it abuts against the raised structure, and the liquid inlet 11 is provided on the raised structure. This solution forms a groove 12 on the side of the cover away from the filter chamber. As one embodiment of this solution, the groove 12 can be set as a constricted opening that shrinks towards the liquid inlet 11, thereby increasing the flow rate of the cleaning liquid mixed with residues entering the spiral channel through a gentle cross-sectional change, and further improving the filtration effect.

[0053] Example 4

[0054] As another embodiment of the present invention, this embodiment is further improved on the basis of embodiment three as follows.

[0055] In this embodiment, as Figure 3 , Figure 4 and Figure 5As shown, the spiral guide 3 is inclined towards the bottom of the filter chamber along the direction away from the filter element 2. That is, in the cross section passing through the axis of the filter chamber, the spiral guide 3 is inclined towards the bottom of the filter chamber from the end in contact with the filter element 2 to the end in contact with the inner peripheral wall of the filter chamber. Under the guidance of the spiral guide 3, the residues that enter the spiral channel with the cleaning liquid tend to concentrate near the inner peripheral wall of the filter chamber, avoiding the residues from directly adhering to the filter element 2 and causing blockage, thus further improving the practicality of the spiral filter assembly. With the spiral guide 3 having elastic deformation capability, and the abutment relationship between the spiral guide 3 and the inner peripheral wall of the filter chamber, it is possible to better avoid the accumulation of residues on the spiral guide 3, further improving the ease of use of the spiral filter assembly.

[0056] This utility model also provides a reactor cleaning device having the spiral filter assembly described in the above embodiments, as detailed below.

[0057] Example 5

[0058] As another embodiment of the present invention, this embodiment provides a reaction vessel cleaning device, including a spray assembly 4 and a spiral filter assembly as described in Embodiment 4.

[0059] Specifically, such as Figure 6 As shown, the spray assembly 4 includes a cleaning component and a tube. In one specific embodiment, the cleaning component is an electric spray gun with an integrated pump. The tube is connected to the suction port of the electric spray gun, and the other end extends from the outlet 21 of the spiral filter assembly into the outlet chamber. The upper cover of the reactor is usually provided with a feeding port and an observation port. The electric spray gun can extend into the reactor from the feeding port to spray the cleaning agent. During the spraying process, the spraying situation can be observed through the observation port. The tube can also extend into the reactor from the feeding port and hang down to the bottom of the reactor to connect with the spiral filter assembly. This enables the rinsing of the reactor and the internal self-circulation of the cleaning agent when the reactor cover is closed.

[0060] In other embodiments, the end of the filter element 2 that forms the liquid outlet 21 is also provided with a connector. The diameter of the connector is larger than the outer diameter of the filter element 2, which can limit the filter element 2 and prevent the filter element 2 from falling into the filter chamber and affecting the filtration effect. When the filter element 2 is installed in place, the connector protrudes from the cover, so the tube does not need to be inserted into the filter element 2, but can be connected to the filter element 2 through the connector, which further simplifies the installation operation. Moreover, compared with inserting the tube into the filter chamber, connecting through the connector has higher stability.

[0061] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A spiral filter assembly, characterized in that, include, The outer shell (1) is hollow and has a cylindrical filter chamber. The filter element (2) is a hollow cylinder and is coaxially arranged in the filter chamber to divide the filter chamber into an inlet chamber located outside the filter element (2) and an outlet chamber located inside the filter element (2). The inlet chamber and the outlet chamber form an inlet and an outlet at the same end of the filter chamber, respectively. At least a portion of the filter element (2) on the side away from the outlet is configured as a filter structure (22) that connects the inlet chamber and the outlet chamber. The spiral guide (3) is spirally fixed in the liquid inlet chamber along the length of the filter (2) to form a channel spirally coiled along the length of the filter (2).

2. The spiral filter assembly according to claim 1, characterized in that, The spiral guide (3) is inclined towards the bottom of the filter chamber in a direction away from the filter element (2).

3. The spiral filter assembly according to claim 1, characterized in that, The spiral guide (3) is connected to the filter element (2) and abuts against the inner wall of the filter cavity.

4. The spiral filter assembly according to claim 1, characterized in that, The outer shell (1) includes a cavity and a cover. One end of the cavity is open. The cover is detachably connected to the cavity. The cover opening cooperates with the cavity to form a filter cavity. The liquid inlet and liquid outlet are formed on the cover.

5. The spiral filter assembly according to claim 4, characterized in that, The cover has a circular opening at the center, the size of which is matched with the diameter of the filter element (2). The filter element (2) is detachably connected to the cover through the circular opening.

6. The spiral filter assembly according to claim 5, characterized in that, The filter element (2) is provided with a connector at one end forming the liquid outlet. The diameter of the connector is larger than the diameter of the filter element (2). When the filter element (2) is installed in place, the filter structure (22) is located on the side of the cover facing the inside of the filter chamber.

7. The spiral filter assembly according to claim 4, characterized in that, The cover protrudes into the filter chamber in a portion surrounding the liquid outlet, and a groove (12) is formed on the side of the cover away from the filter chamber. One end of the spiral guide (3) abuts against the protrusion, and the liquid inlet is located in the groove (12).

8. The spiral filter assembly according to claim 1, characterized in that, There is a gap between the end of the filter element (2) away from the liquid outlet and the bottom of the filter chamber.

9. The spiral filter assembly according to any one of claims 1-8, characterized in that, The spiral guide (3) is made of a material with elastic deformation capability.

10. A reactor cleaning device, characterized in that, It includes a spray assembly (4) and a spiral filter assembly as described in any one of claims 1-9, wherein the spray assembly (4) is connected to the liquid outlet of the spiral filter assembly and the filtered cleaning agent is extracted from the liquid outlet.

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