Stirring shaft and stirring device

Abstract

The present invention relates to a stirring shaft and a stirring device. The stirring shaft includes a rotating body and a flow disturbing component. The flow disturbing component is arranged on the rotating body. Flow disturbing components are arranged on both sides of the rotating shaft. The flow disturbing component includes a first flow disturbing vane and a second flow disturbing vane. The plane where the first flow disturbing vane is located and the plane where the second flow disturbing vane is located are respectively parallel to the rotating shaft. A first included angle is formed between the plane where the first flow disturbing vane is located and the plane where the second flow disturbing vane is located. The two first included angles on both sides of the rotating shaft are opposite in direction. When the stirring shaft rotates along the opening direction of the first included angle, the fluid between the first flow disturbing vane and the second flow disturbing vane will pass through a process in which the space changes from wide to narrow, and local turbulence is formed. The rotation direction of the medium in the turbulence is opposite to the rotation direction of the stirring shaft, thereby breaking the steady state of the unidirectional radial fluid, accelerating the diffusion speed of the turbulence, improving the mixing efficiency and mixing quality of the medium, and also making the temperature of the medium more uniform.

Description

Technical Field

[0001] The present invention relates to the technical field of medium stirring, and particularly to a stirring shaft and a stirring device. Background Art

[0002] Currently, a stirring device generally includes a speed reducer and a stirring shaft. The speed reducer drives the stirring shaft to stir the medium in the container, so that the medium in the container is evenly mixed.

[0003] When the stirring device is applied to working conditions such as heating and cooling, the current method is generally to add a heating jacket or a cooling jacket outside the container containing the medium for heating or cooling the medium; some also add a heat exchanger in the container to achieve the heating or cooling function. However, both of these methods will cause uneven temperature changes of the medium in the container, and the mixing effect of the medium is not ideal, unable to meet the requirements. When the medium is a temperature-sensitive medium (such as a cell medium in the pharmaceutical industry), it cannot meet its precise temperature difference control needs, resulting in overheating or overcooling, thereby destroying the physical properties of the medium. Summary of the Invention

[0004] Based on this, in view of the above technical problems, it is necessary to provide a stirring shaft and a stirring device that can perform uniform heating or cooling operations on the medium, have a better medium mixing effect, and are also beneficial to improving the heating efficiency or cooling efficiency.

[0005] A stirring shaft rotates around its rotation axis, and the stirring shaft includes:

[0006] A rotating body and a flow disturbing component. The flow disturbing component is arranged on the rotating body, and the flow disturbing component is arranged on both sides of the rotation axis; the flow disturbing component includes a first flow disturbing piece and a second flow disturbing piece. The plane where the first flow disturbing piece is located and the plane where the second flow disturbing piece is located are respectively parallel to the rotation axis. The plane where the first flow disturbing piece is located and the plane where the second flow disturbing piece is located form a first included angle, and the two first included angles on both sides of the rotation axis are in opposite directions.

[0007] The following further describes the technical solution:

[0008] In one embodiment, the rotating body includes a transverse tube. The transverse tube is arranged on any side of the rotation axis and the extending direction of the transverse tube is perpendicular to the rotation axis; along the extending direction of the transverse tube, the first flow disturbing piece and the second flow disturbing piece are installed on the transverse tube, and the second flow disturbing piece is arranged between the first flow disturbing piece and the rotation axis.

[0009] In one embodiment, the plane of the first spoiler forms an angle a with the extending direction of the transverse tube, the plane of the second spoiler forms an angle b with the extending direction of the transverse tube, and the angle a is greater than the angle b.

[0010] In one embodiment, the plane of the first spoiler is perpendicular to the extending direction of the transverse tube, and the plane of the second spoiler is arranged at an acute angle with the extending direction of the transverse tube.

[0011] In one embodiment, the rotating direction of the rotating shaft is the same as the opening direction of the first angle.

[0012] In one embodiment, the interior of the rotating body is hollow. The rotating body includes a first end and a second end that are connected and communicate with each other. One of the first end and the second end is used for inputting the temperature-controlled fluid, and the other of the first end and the second end is used for outputting the temperature-controlled fluid.

[0013] In one embodiment, a stirring device includes a first open end, a second open end, and a stirring shaft as described in any of the above embodiments. The first open end communicates with the first end of the rotating body, and the second end of the rotating body communicates with the second open end. Either the first open end or the second open end is used for inputting the temperature-controlled fluid into the rotating body, and the other of the first open end and the second open end is used for outputting the temperature-controlled fluid in the rotating body.

[0014] In one embodiment, the stirring device further includes a first pipe and a second pipe. The first pipe is sleeved inside the second pipe, and an interlayer channel is formed between the outer wall of the first pipe and the inner wall of the second pipe. Sealing plates are provided at both ends of the interlayer channel for closing both ends of the interlayer channel. A first through hole and a second through hole are formed in the side wall of the second pipe. The interlayer channel communicates with the second open end through the first through hole, and the second end of the rotating body communicates with the interlayer channel through the second through hole. One end of the first pipe communicates with the first open end, and the other end of the first pipe communicates with the first end of the rotating body.

[0015] In one embodiment, the stirring device further includes a first lip seal. The first open end is butted against one end of the first pipe, and the first lip seal is provided at the butt joint of the first open end and the first pipe. The stirring device further includes a first sleeve. The first pipe passes through the first sleeve, and the first pipe can rotate self - sufficiently inside the first sleeve.

[0016] In one embodiment, the stirring device further includes a second sleeve, a second lip seal, and a third lip seal. The second lip seal and the third lip seal are respectively arranged in a ring above and below the first through hole of the second pipe. The second pipe is sleeved in the second sleeve, and both the second lip seal and the third lip seal are installed in the second sleeve. The outer wall of the second lip seal is closely attached to the inner wall of the second sleeve, and the outer wall of the third lip seal is closely attached to the inner wall of the second sleeve. The second pipe can rotate self - rotatably in the second sleeve. The second open end is inserted into the second sleeve and communicates with the sandwich channel.

[0017] The above - mentioned stirring shaft and stirring device have at least the following beneficial effects:

[0018] The stirring shaft provided in this embodiment includes a rotating body and a flow - disturbing component, and the flow - disturbing component is installed on the rotating body. The plane where the first flow - disturbing piece is located and the plane where the second flow - disturbing piece is located form a first included angle. When the stirring shaft rotates along the opening direction of the first included angle, the fluid between the first flow - disturbing piece and the second flow - disturbing piece will experience a process of the space changing from wide to narrow, with local volume compression and increased flow velocity. When the flow velocity of the fluid increases, the pressure decreases. The ambient pressure outside this area remains unchanged, and the fluid will quickly flow towards the wide - mouth part of the included angle formed by the first flow - disturbing piece and the second flow - disturbing piece due to the pressure difference, forming local turbulence. The rotation direction of the medium in the turbulence is opposite to the rotation direction of the stirring shaft, thereby breaking the one - way radial fluid steady state, accelerating the turbulence diffusion speed, improving the medium mixing efficiency and mixing quality, making the temperature of the medium more uniform, and also being beneficial to improving the heating efficiency or cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following - described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic structural diagram of the stirring device provided in an embodiment of the present invention;

[0022] Figure 2 For Figure 1 the top - view structural diagram of the stirring shaft in

[0023] Figure 3Schematic diagram of the internal structure of the stirring device provided by an embodiment of the present invention;

[0024] Figure 4 is Figure 3 an enlarged schematic diagram of the structure at position P in

[0025] Figure 5 Schematic diagram of the structure of the stirring device provided by an embodiment of the present invention after removing the driving member, the first sleeve, and the second sleeve.

[0026] Explanation of reference numerals: 100, stirring device; 110, stirring shaft; 111, rotating body; 1111, transverse pipe; 1112, rotating shaft; 1113, first end; 1114, second end; 1115, arc-shaped pipe; 112, turbulence generating assembly; 1121, first turbulence generating fin; 1122, second turbulence generating fin; 120, first open end; 130, second open end; 140, first pipe; 150, second pipe; 151, first through hole; 152, second through hole; 153, first keyway; 160, sandwich channel; 171, first lip seal; 172, second lip seal; 173, third lip seal; 181, first sleeve; 182, second sleeve; 1821, third through hole; 190, driving member; 191, flat key. Detailed implementation manners

[0027] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe the detailed implementation manners of the present invention in conjunction with the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0028] This embodiment provides a stirring shaft 110 and a stirring device 100, which have the advantages of being able to uniformly heat or cool the medium, having a good medium mixing effect, and being conducive to improving the heating efficiency or cooling efficiency. The following will be described in detail with reference to the accompanying drawings.

[0029] In one embodiment, please refer to Figures 1 to 3, a stirring shaft 110 rotates about its rotation axis 1112, and the stirring shaft 110 includes a rotating body 111 and a flow disturbing assembly 112. The flow disturbing assembly 112 is arranged on the rotating body 111. The flow disturbing assemblies 112 are arranged on both sides of the rotation axis 1112. The flow disturbing assembly 112 includes a first flow disturbing piece 1121 and a second flow disturbing piece 1122. The plane where the first flow disturbing piece 1121 is located and the plane where the second flow disturbing piece 1122 is located are respectively parallel to the rotation axis 1112. The plane where the first flow disturbing piece 1121 is located and the plane where the second flow disturbing piece 1122 is located form a first included angle β. The directions of the two first included angles β on both sides of the rotation axis 1112 are opposite.

[0030] The stirring shaft 110 provided in this embodiment includes a rotating body 111 and a flow disturbing assembly 112, and the flow disturbing assembly 112 is installed on the rotating body 111. The plane where the first flow disturbing piece 1121 is located and the plane where the second flow disturbing piece 1122 is located form a first included angle. When the stirring shaft 110 rotates along the opening direction of the first included angle, the fluid between the first flow disturbing piece 1121 and the second flow disturbing piece 1122 will pass through a process where the space changes from wide to narrow, the local volume is compressed, and the flow rate becomes faster. According to Bernoulli's principle, when the flow rate of the fluid increases, the pressure decreases. The ambient pressure outside this area remains unchanged, and the fluid will quickly flow towards the wide opening part of the included angle formed by the first flow disturbing piece 1121 and the second flow disturbing piece 1122 due to the pressure difference, forming local turbulence. The rotation direction of the medium in the turbulence is opposite to the rotation direction of the stirring shaft 110, thereby breaking the unidirectional radial fluid steady state, accelerating the turbulence diffusion speed, improving the medium mixing efficiency and mixing quality, making the temperature of the medium more uniform, and also being beneficial to improving the heating efficiency or cooling efficiency.

[0031] In one embodiment, please refer to Figures 1 to 3 , the rotating body 111 includes a transverse tube 1111. The transverse tube 1111 is arranged on any side of the rotation axis 1112 and the extending direction of the transverse tube 1111 is perpendicular to the rotation axis 1112. Along the extending direction of the transverse tube 1111, the first flow disturbing piece 1121 and the second flow disturbing piece 1122 are installed on the transverse tube 1111, and the second flow disturbing piece 1122 is arranged between the first flow disturbing piece 1121 and the rotation axis 1112. Specifically, the rotating body 111 is a serpentine bent tube, and the serpentine bent tube includes a straight transverse tube 1111 and a bent arc tube 1115. Multiple sections of the transverse tube 1111 and the arc tube are connected in sequence to form the serpentine bent tube. The transverse tube 1111 is arranged on any side of the rotation axis 1112, and the first flow disturbing piece 1121 and the second flow disturbing piece 1122 are installed in the extending direction of the transverse tube 1111. When the transverse tube 1111 is a long strip tube, the extending direction of the transverse tube 1111 refers to its length direction.

[0032] Further, please refer to Figures 1 to 2 . A plane where the first spoiler 1121 is located forms an angle a with the extending direction of the transverse tube 1111, a plane where the second spoiler 1122 is located forms an angle b with the extending direction of the transverse tube 1111, and the angle a is greater than the angle b. The rotation direction of the rotation axis 1112 is the same as the opening direction of the first angle. Specifically, as shown in Figure 2 , the plane where the first spoiler 1121 is located is perpendicular to the extending direction of the transverse tube 1111, and the plane where the second spoiler 1122 is located is arranged at an acute angle with the extending direction of the transverse tube 1111, that is, the angle a is 90°, and the angle b is an acute angle. Thus, when the stirring shaft 110 rotates in the clockwise direction (as shown in the direction of Figure 2 ), the fluid between the first spoiler 1121 and the second spoiler 1122 will pass through a process where the space becomes narrower, the local volume is compressed, and the flow rate becomes faster. When the flow rate of the fluid increases, the pressure decreases. The ambient pressure outside this area remains unchanged, and the fluid will quickly flow towards the wide-opening part of the angle formed by the first spoiler 1121 and the second spoiler 1122 due to the pressure difference, forming local turbulence. The rotation direction of the medium inside the turbulence is opposite to the rotation direction of the stirring shaft 110, thereby breaking the one-way radial fluid steady state, accelerating the turbulence diffusion speed, improving the medium mixing efficiency and mixing quality, and also making the temperature of the medium more uniform.

[0033] In one embodiment, please refer to Figure 3 , Figure 4 and Figure 5 . The inside of the rotating body 111 is hollow. The rotating body 111 includes a first end 1113 and a second end 1114 that are connected and communicate with each other. One of the first end 1113 and the second end 1114 is used to input the temperature control fluid, and the other of the first end 1113 and the second end 1114 is used to output the temperature control fluid. Among them, the temperature control fluid refers to a fluid with a certain temperature. Thus, the temperature control fluid flowing inside the rotating body 111 can also heat or cool the medium during the rotation of the stirring shaft 110, ensuring that the medium in each area can be heated or cooled, accurately controlling the temperature of the medium, avoiding the phenomenon of uneven medium temperature, and being beneficial to improving the uniformity and accuracy of the medium temperature.

[0034] In one embodiment, please refer to Figure 1 and Figure 4, a stirring device 100 includes a first open end 120, a second open end 130, and a stirring shaft 110 as described in any of the above embodiments. The first open end 120 communicates with the first end 1113 of the rotating body 111, and the second end 1114 of the rotating body 111 communicates with the second open end 130. Any one of the first open end 120 and the second open end 130 is used to input a temperature-controlled fluid into the rotating body 111, and the other of the first open end 120 and the second open end 130 is used to output the temperature-controlled fluid in the rotating body 111. For example, when the medium placed in the container needs to be heated, hot temperature-controlled fluid can be injected from the first open end 120 or the second open end 130. The temperature-controlled fluid flows into the stirring shaft 110, and the stirring shaft 110 can heat the medium while stirring the medium. When the medium placed in the container needs to be cooled, cold temperature-controlled fluid can be injected from the first open end 120 or the second open end 130. The temperature-controlled fluid flows into the stirring shaft 110, and the stirring shaft 110 can cool the medium while stirring the medium. Moreover, when the stirring device 100 is operating, the temperature-controlled fluid can be continuously and uninterruptedly introduced into the stirring shaft 110.

[0035] In one embodiment, please refer to Figure 1 , when the stirring device 100 is working, only need to inject the temperature-controlled fluid into any one of the first open end 120 and the second open end 130. The temperature-controlled fluid flows through the stirring shaft 110, and then the temperature-controlled fluid is output from the other of the first open end 120 and the second open end 130. In this way, the stirring shaft 110 rotates in the container to stir the medium evenly. The temperature-controlled fluid flowing in the stirring shaft 110 can also heat or cool the medium during the rotation of the stirring shaft 110, ensuring that the medium in each area can be heated or cooled, the temperature of the medium can be accurately controlled, avoiding the phenomenon of uneven medium temperature, and being beneficial to improving the uniformity and accuracy of the medium temperature.

[0036] In one embodiment, please refer to Figure 3 and Figure 4, the stirring device 100 further includes a first pipe 140 and a second pipe 150. The first pipe 140 is sleeved inside the second pipe 150. A sandwich channel 160 is formed between the outer wall of the first pipe 140 and the inner wall of the second pipe 150. Sealing plates (not shown) are provided at both ends of the sandwich channel 160, and the sealing plates are used to close both ends of the sandwich channel 160. A first through hole 151 and a second through hole 152 are formed on the side wall of the second pipe 150. The sandwich channel 160 communicates with the second opening end 130 through the first through hole 151, and the second end 1114 of the rotating body 111 communicates with the sandwich channel 160 through the second through hole 152. One end of the first pipe 140 communicates with the first opening end 120, and the other end of the first pipe 140 communicates with the first end 1113 of the rotating body 111. Specifically, the first pipe 140 and the second pipe 150 form a sleeve. The sealing plate is an annular plate with a central hole, and the central hole is equal to the end opening of the first pipe 140. The sealing plate is welded to the end faces of the first pipe 140 and the second pipe 150 to close both ends of the sandwich channel 160. Further, please refer to Figure 3 and Figure 4 , taking the injection of the temperature-controlled fluid from the first opening end 120 and the output of the temperature-controlled fluid from the second opening end 130 as an example, the fluid flow in the stirring device 100 is specifically described as follows: The temperature-controlled fluid injected from the first opening end 120 flows into the first end 1113 of the rotating body 111 from the first pipe 140, then flows from the second end 1114 of the rotating body 111 to the second through hole 152 on the second pipe 150 and enters the sandwich channel 160; the temperature-controlled fluid in the sandwich channel 160 then flows from the first through hole 151 to the second opening end 130, and finally the temperature-controlled fluid is output from the second opening end 130 to complete the unidirectional flow of the temperature-controlled fluid.

[0037] In one embodiment, please refer to Figure 3 and Figure 4, the stirring device 100 further includes a first lip seal 171. The first open end 120 is butted against one end of the first pipe 140. The first lip seal 171 is provided at the butting joint of the first open end 120 and the first pipe 140. The stirring device 100 further includes a first sleeve 181, and the first pipe 140 is disposed inside the first sleeve 181. The first pipe 140 can rotate on its own axis inside the first sleeve 181. Specifically, the first lip seal 171 is a lip seal ring made of modified Teflon, which ensures that the liquid will not adhere to the first lip seal 171. The function of the first lip seal 171 is to seal the butting joint of the first open end 120 and the first pipe 140, preventing the temperature control fluid from overflowing from the butting joint of the first open end 120 and the first pipe 140. The other end of the first pipe 140 can be integrally formed with the first end 1113 of the rotating body 111, or a seal is installed at the connection between the first pipe 140 and the first end 1113 of the rotating body 111 to ensure that the temperature control fluid will not leak from the connection between the first pipe 140 and the stirring shaft 110. Further, the sleeve formed by the first pipe 140 and the second pipe 150 is disposed inside the first sleeve 181, and the first lip seal 171 is also installed inside the first sleeve 181. The sleeve formed by the first pipe 140 and the second pipe 150 can rotate inside the first sleeve 181, and the first sleeve 181 remains stationary.

[0038] In one embodiment, please refer to Figure 3 and Figure 4, the stirring device 100 further includes a second sleeve 182, a second lip seal 172, and a third lip seal 173. The second lip seal 172 and the third lip seal 173 are respectively arranged in a ring above and below the first through hole 151 of the second pipe 150. The second pipe 150 is sleeved in the second sleeve 182, and both the second lip seal 172 and the third lip seal 173 are installed in the second sleeve 182. The outer wall of the second lip seal 172 is closely attached to the inner wall of the second sleeve 182, and the outer wall of the third lip seal 173 is closely attached to the inner wall of the second sleeve 182. The second pipe 150 can rotate self - in the second sleeve 182. The second open end 130 is inserted into the second sleeve 182 and communicates with the sandwich channel 160. Specifically, the second open end 130 is inserted into the third through hole 1821 on the second sleeve 182. Both the second lip seal 172 and the third lip seal 173 are lip - shaped sealing rings made of modified Teflon. The outer wall of the second lip seal 172, the outer wall of the second sleeve 182, the outer wall of the third lip seal 173, and the outer wall of the second pipe 150 form a chamber. When the temperature - controlled fluid is input from the first open end 120, the temperature - controlled fluid flows into the sandwich channel 160, and can only flow from the first through hole 151 into this chamber, and then flow from the third through hole 1821 of the second sleeve 182 to the second open end 130.

[0039] Further, a plurality of first through holes 151 can be circumferentially arranged along the second pipe 150, and the first through holes 151 can be round holes, square holes, or long - strip holes, and their specific shapes and quantities are not specifically limited herein. The shape of the rotating body 111 can be other shapes in addition to the snake - shape, and is not specifically limited herein.

[0040] In one embodiment, please refer to Figures 4 to 5 , the stirring device 100 further includes a driving member 190, and the outer wall of the second pipe 150 is connected to the driving member 190 through a flat key 191. Specifically, a first keyway 153 is opened on the outer wall of the second pipe 150, a second keyway (not shown) is provided on the rotating part (not shown) of the driving member 190, and the flat key 191 is stuck in the first keyway 153 and the second keyway to realize the installation of the driving member 190 and the second pipe 150. When the rotating part of the driving member 190 rotates, it can drive the second pipe 150 to rotate, then the first pipe 140 and the second pipe 150 rotate simultaneously, and the stirring shaft 110 also rotates driven by the first pipe 140. The first sleeve 181 is arranged at one end of the second sleeve 182, and the other end of the second sleeve 182 can also be fixed to the driving member 190 using fasteners such as screws. Further, the driving member 190 can be a device such as a speed reducer, a motor, or a pneumatic motor.

[0041] In this embodiment, a first included angle is formed between the plane where the first spoiler 1121 is located and the plane where the second spoiler 1122 is located. When the stirring shaft 110 rotates along the opening direction of the first included angle, the fluid between the first spoiler 1121 and the second spoiler 1122 will pass through a process where the space changes from wide to narrow, the local volume is compressed, and the flow rate becomes faster. When the flow rate of the fluid increases, the pressure decreases. The ambient pressure outside this area remains unchanged, and the fluid will flow rapidly towards the wide-opening part of the included angle formed by the first spoiler 1121 and the second spoiler 1122 due to the pressure difference, forming local turbulence. The rotation direction of the medium inside the turbulence is opposite to the rotation direction of the stirring shaft 110, thereby breaking the unidirectional radial fluid steady state, accelerating the turbulence diffusion speed, improving the medium mixing efficiency and mixing quality, making the temperature of the medium more uniform, and also being beneficial to improving the heating efficiency or cooling efficiency.

[0042] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0043] The above-described embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims. In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present invention.

[0044] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0045] In the present invention, unless otherwise clearly stipulated and defined, the terms "mounted", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication between two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present invention, unless otherwise clearly stipulated and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0047] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation.

Claims

1. A stirring device, characterized in that, the stirring device includes a first open end, a second open end and a stirring shaft, a first pipe and a second pipe. The first pipe is sleeved inside the second pipe, and an interlayer channel is formed between the outer wall of the first pipe and the inner wall of the second pipe. Sealing plates are provided at both ends of the interlayer channel, and the sealing plates are used to close both ends of the interlayer channel; a first through hole and a second through hole are formed in the side wall of the second pipe. The interlayer channel communicates with the second open end through the first through hole, and the second end of the rotating body communicates with the interlayer channel through the second through hole. One end of the first pipe communicates with the first open end, and the other end of the first pipe communicates with the first end of the rotating body; the stirring device further includes a first sleeve, and the first pipe passes through the first sleeve, and the first pipe can rotate self - axially inside the first sleeve; the stirring shaft rotates self - axially around its rotation axis, and the stirring shaft includes: a rotating body and a flow - disturbing component. The flow - disturbing component is arranged on the rotating body, and the flow - disturbing components are provided on both sides of the rotation axis; the flow - disturbing component includes a first flow - disturbing piece and a second flow - disturbing piece. The plane where the first flow - disturbing piece is located and the plane where the second flow - disturbing piece is located are respectively parallel to the rotation axis. A first included angle is formed between the plane where the first flow - disturbing piece is located and the plane where the second flow - disturbing piece is located, and the two first included angles on both sides of the rotation axis are opposite in direction; the rotating body includes a transverse pipe. The transverse pipe is arranged on either side of the rotation axis and the extending direction of the transverse pipe is perpendicular to the rotation axis; along the extending direction of the transverse pipe, the first flow - disturbing piece and the second flow - disturbing piece are installed on the transverse pipe, and the second flow - disturbing piece is arranged between the first flow - disturbing piece and the rotation axis; the plane where the first flow - disturbing piece is located is perpendicular to the extending direction of the transverse pipe, and the plane where the second flow - disturbing piece is located is set at an acute angle with the extending direction of the transverse pipe; the stirring device further includes a driving member, and the outer wall of the second pipe is connected to the driving member through a flat key.

2. The stirring device according to claim 1, characterized in that, an included angle a is formed between the plane where the first flow - disturbing piece is located and the extending direction of the transverse pipe, and an included angle b is formed between the plane where the second flow - disturbing piece is located and the extending direction of the transverse pipe, and the included angle a is greater than the included angle b.

3. The stirring device according to claim 1, characterized in that, the rotation direction of the rotation axis is the same as the opening direction of the first included angle.

4. The stirring device according to claim 1, characterized in that, the inside of the rotating body is hollow, the rotating body includes a first end and a second end which are communicated with each other. One of the first end and the second end is used for inputting temperature - controlled fluid, and the other of the first end and the second end is used for outputting the temperature - controlled fluid.

5. The stirring device according to claim 1, characterized in that, The first open end communicates with the first end of the rotating body, and the second end of the rotating body communicates with the second open end; any one of the first open end and the second open end is used to input a temperature control fluid into the rotating body, and the other of the first open end and the second open end is used to output the temperature control fluid in the rotating body.

6. The stirring device according to claim 5, characterized in that, the stirring device further includes a first lip seal, the first open end is butted against one end of the first pipe, and the first lip seal is provided at the butting portion of the first open end and the first pipe.

7. The stirring device according to claim 5, characterized in that, the stirring device further includes a second sleeve, a second lip seal and a third lip seal. The second lip seal and the third lip seal are respectively arranged in a ring shape above and below the first through hole of the second pipe. The second pipe is sleeved in the second sleeve, and both the second lip seal and the third lip seal are installed in the second sleeve; the outer wall of the second lip seal is closely attached to the inner wall of the second sleeve, the outer wall of the third lip seal is closely attached to the inner wall of the second sleeve, and the second pipe can rotate self in the second sleeve; the second open end is inserted into the second sleeve and communicates with the sandwich channel.

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