Separator

Abstract

The utility model relates to the technical field of tar separation, in particular to a separator. The separator provided by the utility model comprises a tank body, a stirring device and a sealing structure, the stirring device is inserted into the separation cavity of the tank body and comprises a stirring assembly and a driving shaft. The sealing structure is arranged between the tank body and the driving shaft, the sealing structure comprises a connecting piece and a first sealing assembly, the connecting piece is arranged around the driving shaft and connected with the tank body, the connecting piece is provided with a first containing space, and the first sealing assembly is located in the first containing space and arranged around the driving shaft; wherein the first sealing assembly comprises a first sealing piece with preset deformation quantity, the first sealing piece is provided with a cavity and a communicating part communicating with the cavity, the communicating part is used for being connected with an external pressure source, and the external pressure source is configured to inject a pressure medium into the cavity through the communicating part; therefore, the size of the first sealing piece in the radial direction of the driving shaft is adjustable, and the sealing effect is improved.

Description

Technical Field

[0001] This application relates to the field of tar separation technology, and more particularly to a separator. Background Technology

[0002] A primary tar separator is used to separate primary tar from the gas produced by a gasifier. A primary tar separator typically includes a tank, an agitator, and a sealing structure. The agitator uses a drive shaft to achieve a combined rotary shearing and axial lifting motion to enhance separation efficiency. The sealing structure is usually located between the tank and the drive shaft to prevent leakage of the medium inside the tank.

[0003] However, the sealing structures in related technologies typically employ mechanical seals or packing seals, which have poor sealing performance. Utility Model Content

[0004] This application provides a separator to solve the problem of poor sealing effect of the current separator sealing structure.

[0005] To achieve the above objectives, the technical solution of this application is as follows:

[0006] This application provides a separator, comprising: a tank having a separation chamber; a stirring device inserted into the separation chamber, the stirring device including a stirring assembly and a drive shaft, the drive shaft being connected to the stirring assembly and driving the stirring assembly to rotate relative to the tank; and a sealing structure disposed between the tank and the drive shaft, the sealing structure including a connector and a first sealing assembly, the connector being disposed around the drive shaft and connected to the tank, the connector having a first receiving space, the first sealing assembly being located in the first receiving space and disposed around the drive shaft; wherein, the first sealing assembly includes a first sealing element having a predetermined deformation, the first sealing element having a cavity and a connecting portion communicating with the cavity, the connecting portion being used to connect to an external pressure source and inject a pressure medium into the cavity, so that the dimension of the first sealing element in the radial direction of the drive shaft is adjustable.

[0007] In one possible implementation, the separator provided in this application further includes a second seal in the first sealing assembly. The second seal is located within the first receiving space and is fixed in relative position to the connector. The side of the second seal facing the drive shaft has a second receiving space, and the first seal is embedded in the second receiving space and abuts against the drive shaft.

[0008] In one possible implementation, the separator provided in this application has a first connecting section that penetrates the connector itself, one end of the first connecting section being used to connect with a connecting part, and the other end being used to connect with an external pressure source.

[0009] In one possible implementation, the separator provided in this application has a second connecting section that penetrates through the second seal itself, with one end of the second connecting section connected to the first connecting section and the other end connected to the connecting part.

[0010] In one possible implementation, the separator provided in this application includes a first sealing assembly comprising a pair of first seals located on opposite sides of the second connecting section in the axial direction of the drive shaft, with the connecting portions of the pair of first seals facing each other.

[0011] In one possible implementation, the separator provided in this application further includes a second sealing assembly. The second sealing assembly includes a sealing body and a filler. The sealing body is connected to one side of the connector along the axial direction of the drive shaft. The sealing body has a third receiving space, and the filler is located in the third receiving space. The filler abuts against the inner wall surface of the sealing body and the drive shaft.

[0012] In one possible implementation, the separator provided in this application includes a sealing body comprising a sealing housing and a sealing cover. The sealing housing has a first connecting portion and a second connecting portion disposed opposite to each other in the axial direction. The sealing housing has a first opening for communicating a third receiving space with the outside. The sealing cover is used to seal the first opening and is connected to the second connecting portion.

[0013] In one possible implementation, the separator provided in this application has a sealing cover comprising a third connecting portion and a plug-in portion. The plug-in portion protrudes from the third connecting portion in an axial direction and is inserted into a portion of the third receiving space through a first opening. The third connecting portion is connected to the second connecting portion.

[0014] In one possible implementation, the separator provided in this application, in the radial direction, includes a fourth connecting portion and a second opening communicating with a first receiving space, the first connecting portion blocking the second opening, and the first connecting portion being connected to the fourth connecting portion.

[0015] In one possible implementation, the separator provided in this application further includes a gasket in its sealing structure. The gasket has opposing first and second sides in the axial direction. The first side is in contact with the first sealing assembly and at least part of the connector, and the second side is in contact with the second sealing assembly.

[0016] The separator provided in this application includes a tank, a stirring device, and a sealing structure. The stirring device is inserted into the separation chamber of the tank and includes a stirring assembly and a drive shaft. The drive shaft is connected to the stirring assembly and drives the stirring assembly to rotate relative to the tank. The sealing structure includes a connector and a first sealing assembly. The connector is arranged around the drive shaft and connected to the tank to fix the sealing structure between the tank and the drive shaft, effectively preventing impurities and contaminants inside the tank from entering the sealing structure. The first sealing assembly is located within a first receiving space of the connector and is arranged around the drive shaft. The first sealing assembly includes a first sealing element with a predetermined deformation. The first sealing element has a cavity with adjustable volume and a connecting part communicating with the cavity. The connecting part is connected to an external pressure source. The external pressure source injects a pressure medium (such as hydraulic medium or pneumatic medium) into the cavity through the connecting part to cause the cavity to expand, thereby causing the first sealing element to deform. As a result, the dimension of the first sealing element in the radial direction of the drive shaft increases, thereby increasing the clamping force of the first sealing element on the drive shaft. This effectively prevents the leakage of the medium in the tank when the drive shaft rotates axially and reciprocates, thus improving the sealing effect of the sealing structure. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a partial structural schematic diagram of the separator provided in an embodiment of this application;

[0019] Figure 2 This is a partial structural cross-sectional view of the separator provided in an embodiment of this application;

[0020] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0021] Explanation of reference numerals in the attached figures:

[0022] 10-Tank body; 11-Separation chamber;

[0023] 20 - Stirring device; 21 - Drive shaft;

[0024] 30 - Sealed structure;

[0025] 100 - Connector; 110 - First receiving space; 120 - First connecting section; 121 - First segment; 122 - Second segment; 123 - Third segment; 130 - Fourth connecting part; 140 - Second opening;

[0026] 200 - First sealing assembly; 210 - First seal; 220 - Second seal; 221 - Second receiving space; 222 - Second connecting section;

[0027] 300 - Second sealing assembly; 310 - Sealing body; 311 - Third receiving space; 312 - Sealing housing; 3121 - First connecting part; 3122 - Second connecting part; 3123 - First opening; 313 - Sealing cover; 3131 - Third connecting part; 3132 - Insertion part; 320 - Filler;

[0028] 400-gasket;

[0029] X - Axial direction; Y - Radial direction.

[0030] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the preferred embodiments of this application will be described in more detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this application, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0032] It should be noted that in the description of the embodiments of this application, the terms "upper", "lower", "inner", "outer" and other terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description, and do not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of this application.

[0033] Furthermore, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0034] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "fixation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] A primary tar separator is used to separate primary tar from the gas produced by a gasifier. A primary tar separator typically includes a tank, an agitator, and a sealing structure. The agitator uses a drive shaft to achieve a combined rotary shearing and axial lifting motion to enhance separation efficiency. The sealing structure is usually located between the tank and the drive shaft to prevent leakage of the medium inside the tank. However, the sealing structures in related technologies typically use mechanical seals or packing seals, which have relatively poor sealing performance.

[0036] In view of this, the separator provided in this application includes a tank, a stirring device, and a sealing structure. The stirring device is inserted into the separation chamber of the tank and includes a stirring assembly and a drive shaft. The drive shaft is connected to the stirring assembly and drives the stirring assembly to rotate relative to the tank. The sealing structure includes a connector and a first sealing assembly. The connector is arranged around the drive shaft and connected to the tank to fix the sealing structure between the tank and the drive shaft, and effectively prevents impurities and contaminants in the tank from entering the sealing structure. The first sealing assembly is located within a first receiving space of the connector and is arranged around the drive shaft. The first sealing assembly includes a first sealing element with a predetermined deformation. The first sealing element has a cavity with adjustable volume and a connecting part communicating with the cavity. The connecting part is connected to an external pressure source. The external pressure source injects a pressure medium (such as hydraulic medium or pneumatic medium) into the cavity through the connecting part to cause the cavity to expand, thereby causing the first sealing element to deform. As a result, the dimension of the first sealing element in the radial direction of the drive shaft increases, thereby increasing the clamping force of the first sealing element on the drive shaft. This effectively prevents the leakage of the medium in the tank when the drive shaft rotates axially and reciprocates, thus improving the sealing effect of the sealing structure.

[0037] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0038] See Figure 1 and Figure 2 This application provides a separator, including a tank 10, a stirring device 20, and a sealing structure 30. The tank 10 has a separation chamber 11. The stirring device 20 is inserted into the separation chamber 11 and includes a stirring assembly and a drive shaft 21. The drive shaft 21 is connected to the stirring assembly and drives the stirring assembly to rotate relative to the tank 10. See also... Figure 3 A sealing structure 30 is disposed between the tank body 10 and the drive shaft 21. The sealing structure 30 includes a connector 100 and a first sealing assembly 200. The connector 100 is disposed around the drive shaft 21 and connected to the tank body 10. The connector 100 has a first receiving space 110. The first sealing assembly 200 is located in the first receiving space 110 and is disposed around the drive shaft 21. The first sealing assembly 200 includes a first sealing element 210 with a predetermined deformation. The first sealing element 210 has a cavity and a connecting portion communicating with the cavity. The connecting portion is used to connect to an external pressure source and inject a pressure medium into the cavity, so that the size of the first sealing element 210 in the radial direction Y of the drive shaft 21 is adjustable.

[0039] It should be noted that the separator can be a primary tar separator to separate the primary tar from the gas and water produced by the gasifier. The separator can also be an oil-water separator, a gas-liquid separator, etc.

[0040] In some embodiments, the tank 10 has a separation chamber 11, which is a region where the medium undergoes physical or chemical separation, ensuring the stability and safety of the medium during the processing.

[0041] A stirring device 20 is inserted into the separation chamber 11 of the tank 10. The stirring device 20 includes a stirring assembly and a drive shaft 21. The drive shaft 21 is connected to the stirring assembly, and the rotation and reciprocating motion of the drive shaft 21 drives the stirring assembly to rotate efficiently and stably within the tank 10, thereby improving the separation efficiency. It is understood that in order to achieve the rotation and reciprocating motion of the drive shaft 21, the separator is usually also equipped with a drive component (such as a drive motor).

[0042] To ensure a tight seal between the tank 10 and the drive shaft 21, the separator also includes a sealing structure 30. The drive shaft 21 may be at least partially located at the bottom of the tank 10 in the height direction, and the sealing structure 30 may be disposed between the drive shaft 21 and the tank 10. The sealing structure 30 may include a connector 100 and a first sealing assembly 200. The connector 100 is disposed around the drive shaft 21 and securely connected to the tank 10 to achieve the connection between the sealing structure 30 and the tank 10. Optionally, the connector 100 and the tank 10 may be fixedly connected by bolts. Furthermore, a gasket 400 may be provided between the connector 100 and the tank 10 to further improve the sealing performance.

[0043] It should be noted that when at least a portion of the drive shaft 21 is located at the bottom of the tank 10, the medium to be sealed (e.g., liquid, solid, gas) inside the tank 10 is located above the sealing structure 30, and the connector 100 is located between the drive shaft 21 and the tank 10, which can initially seal the gap between the drive shaft 21 and the tank 10, effectively preventing leakage of the medium inside the tank 10 and preventing impurities and contaminants inside the tank 10 from entering the sealing structure 30.

[0044] Optionally, the connector 100 may include a rigid material. For example, the connector 100 may include carbon steel or stainless steel.

[0045] The connector 100 has a first receiving space 110 on the side facing the drive shaft 21, which is used to receive the first sealing assembly 200. The first sealing assembly 200 includes a first sealing member 210 with a predetermined deformation, that is, the first sealing member 210 can deform according to the movement of the drive shaft 21 to always abut against the drive shaft 21, thereby improving the sealing effect.

[0046] Optionally, the first seal 210 may include an elastic material, such as rubber, which has good elasticity and sealing properties.

[0047] Specifically, the first seal 210 has an adjustable-volume cavity and a connecting part communicating with the cavity. To adjust the cavity volume, the connecting part is connected to an external pressure source. The external pressure source can inject pressure medium into the cavity through the connecting part according to the movement of the drive shaft 21. The injection pressure of the external pressure source is greater than the pressure inside the tank 10. Therefore, when the external pressure source injects pressure medium (such as hydraulic medium or pneumatic medium) into the cavity, the cavity expands, causing the first seal 210 to deform. As a result, the dimension of the first seal 210 in the radial direction Y of the drive shaft 21 increases, thereby increasing the clamping force of the first seal 210 on the drive shaft 21. This effectively prevents the leakage of medium inside the tank 10 when the drive shaft 21 rotates and reciprocates axially, improving the sealing effect of the sealing structure 30.

[0048] Optionally, the connecting part may include a connecting port, a connecting pipe, etc.

[0049] In addition, pressure monitoring devices can be installed on the external pressure source and the tank 10 respectively, so that the staff can adjust the injection pressure of the external pressure source according to the pressure inside the tank 10, thereby ensuring the effective sealing of the drive shaft 21 by the first seal 210.

[0050] It should also be noted that, since the injection pressure of the external pressure source is greater than the pressure inside the tank 10, if the sealing structure 30 fails and causes a risk of leakage in the separator, the external pressure source will flow towards the tank 10 to prevent the medium inside the tank 10 from leaking outward, thereby reducing the probability of a leakage accident and further ensuring the overall safety and reliability of the separator's operation.

[0051] See Figure 3 In some embodiments, the first sealing assembly 200 further includes a second seal 220, which is located within the first receiving space 110 and fixed in relative position to the connector 100. The second seal 220 has a second receiving space 221 on the side facing the drive shaft 21, and the first seal 210 is embedded in the second receiving space 221 and abuts against the drive shaft 21.

[0052] It is understood that the second seal 220 can be embedded in the first receiving space 110 to maintain a relatively fixed positional relationship with the connector 100, thereby ensuring the stability and reliability of the second seal 220 in the sealing structure 30.

[0053] Optionally, the second seal 220 may include a rigid material, such as carbon steel, stainless steel, etc.

[0054] In specific implementation, for the installation of the first seal 210, the second seal 220 has a second receiving space 221 on the side facing the drive shaft 21. The first seal 210 is embedded in the second receiving space 221 and abuts against the drive shaft 21. The nested design between the connector 100, the first seal 210, and the second seal 220 not only improves the overall compactness of the sealing structure 30, but also enhances the sealing effect through the superposition effect of the seals, effectively reducing the risk of media leakage.

[0055] Furthermore, the tight fit between the second seal 220 and the first seal 210, as well as the alignment connection between the first seal 210, the second seal 220, the drive shaft 21, and the connector 100, together constitute a coordinated sealing system. This system ensures the sealing effect between the drive shaft 21 and the tank 10 when the drive shaft 21 rotates and reciprocates, thereby ensuring the operational safety and stability of the separator.

[0056] See Figure 2 and Figure 3 In some embodiments, the connector 100 has a first connecting section 120 that penetrates the connector 100 itself. One end of the first connecting section 120 is used to communicate with the connecting part, and the other end is used to communicate with an external pressure source.

[0057] To enable communication between the first seal 210 and an external pressure source, the connector 100 includes a first connecting section 120 that penetrates the connector 100 itself. Specifically, the first connecting section 120 can be machined in segments. For example, the first connecting section 120 may include a first segment 121, a second segment 122, and a third segment 123 connected sequentially. The first segment 121 and the third segment 123 can extend radially along the drive shaft 21 (Y direction), while the second segment 122 extends axially along the drive shaft 21 (X direction). The first segment 121 and the third segment 123 can have a height difference along the axial direction of the drive shaft 21 (X direction), and are then connected through the second segment 122. This configuration improves the efficiency and stability of external pressure source transmission, enhances the adaptability and reliability of the sealing structure 30, and thus improves the sealing effect of the sealing structure 30. After machining the second segment 122 on one side of the connector 100, the machining hole can be sealed by a sealing member to ensure that the external pressure source flows stably to the connecting part through the first connecting segment 120.

[0058] Therefore, one end of the first connecting section 120 is connected to the connecting part, and the other end is connected to the external pressure source. When the external pressure source needs to inject pressure medium into the cavity, the pressure medium can smoothly pass through the first connecting section 120 and then enter the cavity through the connecting part. This configuration ensures the continuity and efficiency of pressure medium transmission. In addition, the external pressure source can flexibly adjust the pressure and flow rate of the medium injected into the cavity according to actual needs. By controlling the output of the external pressure source, the cavity volume can be adjusted, thereby further improving the sealing performance and adaptability of the sealing structure 30.

[0059] See Figure 3 In some embodiments, the second seal 220 has a second connecting segment 222 that penetrates the second seal 220 itself. One end of the second connecting segment 222 is connected to the first connecting segment 120, and the other end is connected to the connecting portion.

[0060] To ensure that the pressure medium can smoothly enter the cavity, the second seal 220 may be provided with a second connecting section 222 that extends through itself. One end of the second connecting section 222 is connected to the first connecting section 120, and the other end is connected to the connecting part, ensuring the continuity and stability of the pressure medium during transmission.

[0061] See Figure 3 In some embodiments, the first sealing assembly 200 includes a pair of first seals 210, which are respectively located on both sides of the second connecting segment 222 in the axial direction X of the drive shaft 21, and the connecting portions of the pair of first seals 210 are arranged facing each other.

[0062] It is understood that the first sealing assembly 200 may include a pair of first sealing elements 210, that is, the first sealing elements 210 may be set as one pair, two pairs, or more than two pairs. Each pair of first sealing elements 210 may correspond to one second connecting segment 222 and one first connecting segment 120. In other words, when two pairs of first sealing elements 210 are provided, the first connecting segment 120 and the second connecting segment 222 may also each be set as two, with the first connecting segment 120 and the second connecting segment 222 corresponding one-to-one.

[0063] Therefore, by setting the first seal 210 in pairs, the clamping force of the first sealing assembly 200 on the drive shaft 21 can be enhanced. When the drive shaft 21 rotates and reciprocates, the first seal 210 can always abut against the drive shaft 21, thereby improving the sealing effect on the rotation and reciprocation of the drive shaft 21 and effectively preventing the leakage of the medium inside the tank 10.

[0064] In practice, the paired first seals 210 are located on both sides of the second connecting section 222 in the axial direction X of the drive shaft 21, with the connecting portions of the paired first seals 210 facing each other. This arrangement improves the structural compactness of the sealing structure 30, facilitates the connection between the connecting portion and the second connecting section 222, and helps the pressure medium provided by the external pressure source to flow smoothly inside the first seals 210, thereby improving sealing efficiency and sealing stability.

[0065] See Figure 2 In some embodiments, the sealing structure 30 further includes a second sealing assembly 300, which includes a sealing body 310 and a filler 320. The sealing body 310 is connected to one side of the connector 100 along the axial direction X of the drive shaft 21. The sealing body 310 has a third receiving space 311, and the filler 320 is located within the third receiving space 311, abutting between the inner wall surface of the sealing body 310 and the drive shaft 21.

[0066] To further enhance the sealing performance of the sealing structure 30, the sealing structure 30 may also include a second sealing assembly 300. Specifically, the second sealing assembly 300 may include a sealing body 310 and a filler 320. The sealing body 310 serves as the base for supporting and fixing the filler 320 and is connected to one side of the connector 100 along the axial direction X of the drive shaft 21. This arrangement ensures a stable connection between the sealing body 310 and the connector 100, and also makes the sealing structure 30 more compact and robust overall, capable of withstanding various dynamic loads from the drive shaft 21 during operation.

[0067] In order to assemble the filler 320, a third receiving space 311 is provided on the side of the sealing body 310 facing the drive shaft 21. Thus, the filler 320 is filled into the third receiving space 311, and the filler 320 can abut against the inner wall surface of the sealing body 310 and the drive shaft 21, thereby forming a continuous and reliable seal on the drive shaft 21, which can effectively prevent the leakage of the medium in the tank 10.

[0068] In practice, the second sealing assembly 300 can be located below the connector 100 along the axial direction X. Therefore, when the separator has been running for a long time, and the connector 100 or the first sealing assembly 200 has aged and worn, resulting in a small amount of leakage of the medium inside the tank 10, the second sealing assembly 300 can be set to assist in sealing, so as to ensure the sealing effect of the sealing structure 30.

[0069] Optionally, the filler 320 may include graphite packing, carbon fiber, asbestos, etc. For example, the filler 320 may be graphite packing.

[0070] See Figure 2 In some embodiments, the sealing body 310 includes a sealing housing 312 and a sealing cover 313. The sealing housing 312 has a first connecting portion 3121 and a second connecting portion 3122 disposed opposite to each other along the axial direction X. The sealing housing 312 has a first opening 3123 for communicating the third receiving space 311 with the outside. The sealing cover 313 is used to seal the first opening 3123 and is connected to the second connecting portion 3122.

[0071] It should be noted that the sealing body 310 may include a sealing housing 312 and a sealing cover 313. Along the axial direction X, the sealing housing 312 is provided with a first connecting portion 3121 and a second connecting portion 3122. The first connecting portion 3121 is used to fix it to the connector 100 to ensure the stability of the entire sealing structure 30.

[0072] Inside the sealed housing 312, a third receiving space 311 is positioned close to the second connecting portion 3122. The third receiving space 311 is used to receive the filler 320, and an effective seal is achieved through the tight contact between the filler 320 and the drive shaft 21.

[0073] To facilitate the installation, replacement, and inspection of the filler 320, a first opening 3123 is provided on the sealing housing 312. The first opening 3123 is connected to the third receiving space 311, allowing the operator to easily operate the filler 320 through the first opening 3123.

[0074] Furthermore, to ensure the overall sealing performance of the sealing structure 30, the first opening 3123 needs to be closed after the filler 320 is installed. Thus, the sealing cover 313 is configured to be securely connected to the second connecting portion 3122 to ensure effective closure of the first opening 3123, and also enhances the overall strength and sealing performance of the sealing body 310.

[0075] Optionally, the sealing housing 312 and the sealing cover 313 may be made of rigid materials, such as carbon steel, stainless steel, etc.

[0076] See Figure 2 In some embodiments, the sealing cover 313 includes a third connecting portion 3131 and a plug portion 3132. The plug portion 3132 protrudes from the third connecting portion 3131 in the axial direction X. The plug portion 3132 is inserted into a portion of the third receiving space 311 through the first opening 3123. The third connecting portion 3131 is connected to the second connecting portion 3122.

[0077] The insertion portion 3132 protrudes axially from the third connecting portion 3131 and is inserted into the third receiving space 311 through the first opening 3123, thereby connecting the sealing cover 313 and the sealing housing 312 and sealing the first opening 3123. Furthermore, the insertion portion 3132 facilitates the alignment and connection of the sealing cover 313 and the sealing housing 312, and the secure connection between the third connecting portion 3131 and the second connecting portion 3122 ensures the sealing effect of the sealing body 310. Moreover, the insertion portion 3132 prevents the sealing body 310 from loosening or shifting due to vibration or external forces, ensuring the reliability and durability of the sealing body 310.

[0078] It is understandable that the second connecting part 3122 and the third connecting part 3131 can be securely connected by bolts. In addition, the bolt connection also facilitates the disassembly of the second connecting part 3122 and the third connecting part 3131, thereby facilitating the installation, replacement and inspection of the filler 320.

[0079] See Figure 2 and Figure 3 In some embodiments, along the radial direction Y, the connector 100 further includes a fourth connecting portion 130 and a second opening 140 communicating with the first receiving space 110, the first connecting portion 3121 is blocked in the second opening 140, and the first connecting portion 3121 is connected to the fourth connecting portion 130.

[0080] Understandably, in order to facilitate the installation, replacement and inspection of the first sealing assembly 200, the connector 100 has a second opening 140, which is connected to the first receiving space 110, so that the operator can conveniently operate the first sealing assembly 200 through the second opening 140.

[0081] To ensure the overall sealing performance of the sealing structure 30, the second opening 140 needs to be closed after the installation of the first sealing assembly 200 is completed. Therefore, the first connecting portion 3121 is configured to be securely connected to the fourth connecting portion 130 to seal the second opening 140.

[0082] For example, the first connecting part 3121 and the fourth connecting part 130 can be securely connected by bolts.

[0083] See Figure 2 and Figure 3 In some embodiments, the sealing structure 30 further includes a gasket 400 having a first side and a second side opposite to each other in the axial direction X. The first side is in contact with the first sealing assembly 200 and at least part of the connector 100, and the second side is in contact with the second sealing assembly 300.

[0084] The first side is fitted and connected to the first sealing assembly 200 and at least part of the connector 100, and the second side is fitted and connected to the second sealing assembly 300. This ensures that the gasket 400 can effectively fill the gap between the first sealing assembly 200 and the connector 100 and the second sealing assembly 300, thereby enhancing the sealing performance and preventing leakage of the medium inside the tank 10.

[0085] For example, gasket 400 may include graphite wound gasket 400, which has good elasticity and corrosion resistance, and can improve the reliability of sealing structure 30.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A separator, characterized in that, include: The tank (10) has a separation chamber (11); A stirring device (20) is inserted into the separation chamber (11). The stirring device (20) includes a stirring assembly and a drive shaft (21). The drive shaft (21) is connected to the stirring assembly and drives the stirring assembly to rotate relative to the tank (10). A sealing structure (30) is disposed between the tank body (10) and the drive shaft (21). The sealing structure (30) includes a connector (100) and a first sealing assembly (200). The connector (100) is disposed around the drive shaft (21) and connected to the tank body (10). The connector (100) has a first receiving space (110). The first sealing assembly (200) is located in the first receiving space (110) and is disposed around the drive shaft (21). The first sealing assembly (200) includes a first seal (210) having a predetermined deformation. The first seal (210) has a cavity and a connecting portion communicating with the cavity. The connecting portion is used to connect to an external pressure source and inject a pressure medium into the cavity so that the size of the first seal (210) in the radial direction (Y) of the drive shaft (21) is adjustable.

2. The separator according to claim 1, characterized in that, The first sealing assembly (200) further includes a second sealing element (220), which is located within the first receiving space (110) and fixed in relative position to the connector (100); The second seal (220) has a second receiving space (221) on the side facing the drive shaft (21), and the first seal (210) is embedded in the second receiving space (221) and abuts against the drive shaft (21).

3. The separator according to claim 2, characterized in that, The connector (100) has a first connecting section (120) that penetrates the connector (100) itself. One end of the first connecting section (120) is connected to the connecting part, and the other end is used to connect to the external pressure source.

4. The separator according to claim 3, characterized in that, The second seal (220) has a second connecting section (222) that penetrates the second seal (220) itself. One end of the second connecting section (222) is connected to the first connecting section (120), and the other end is connected to the connecting part.

5. The separator according to claim 4, characterized in that, The first sealing assembly (200) includes a pair of first seals (210), which are respectively located on both sides of the second connecting section (222) in the axial direction (X) of the drive shaft (21), and the connecting portions of the pair of first seals (210) are arranged facing each other.

6. The separator according to any one of claims 1 to 5, characterized in that, The sealing structure (30) further includes a second sealing assembly (300), which includes a sealing body (310) and a filler (320). The sealing body (310) is connected to one side of the connector (100) along the axial direction (X) of the drive shaft (21). The sealing body (310) has a third receiving space (311), and the filler (320) is located in the third receiving space (311). The filler (320) abuts between the inner wall surface of the sealing body (310) and the drive shaft (21).

7. The separator according to claim 6, characterized in that, The sealing body (310) includes a sealing shell (312) and a sealing cover (313). The sealing shell (312) has a first connecting portion (3121) and a second connecting portion (3122) disposed opposite to each other along the axial direction (X). The sealing shell (312) has a first opening (3123) for communicating the third receiving space (311) with the outside. The sealing cover (313) is used to seal the first opening (3123) and is connected to the second connecting part (3122).

8. The separator according to claim 7, characterized in that, The sealing cover (313) includes a third connecting part (3131) and a plug-in part (3132). The plug-in part (3132) protrudes from the third connecting part (3131) along the axial direction (X). The plug-in part (3132) is inserted into a portion of the third receiving space (311) through the first opening (3123). The third connecting part (3131) is connected to the second connecting part (3122).

9. The separator according to claim 7, characterized in that, Along the radial direction (Y), the connector (100) further includes a fourth connecting portion (130) and a second opening (140) communicating with the first receiving space (110), the first connecting portion (3121) blocking the second opening (140), and the first connecting portion (3121) being connected to the fourth connecting portion (130).

10. The separator according to claim 6, characterized in that, The sealing structure (30) further includes a gasket (400) having opposing first and second sides in the axial direction (X), the first side being fitted and connected to the first sealing assembly (200) and at least part of the connector (100), and the second side being fitted and connected to the second sealing assembly (300).

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