Gas separator and vacuum system

Abstract

The application discloses a kind of gas separator and vacuum system, it is related to battery production technical field, wherein, gas separator includes shell and intake pipe;Shell is equipped with installation port and gas outlet;Intake pipe is equipped with intake port and pass port, and the end of intake pipe equipped with pass port is inserted into shell from installation port, and first resistance is arranged on the gas outlet path between pass port and gas outlet;Pass port includes end opening arranged in the end of intake pipe, and side opening arranged in the sidewall of intake pipe.The scheme can improve the separation effect of raw materials and gas to solve the problem that raw materials may block pipeline and pollute vacuum pump.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery production, in particular to a gas separator and a vacuum system. BACKGROUND

[0002] Lithium ion battery as a new type of secondary battery, has the advantages of high energy density and power density, high working voltage, light weight, small size, long cycle life, good safety, green environmental protection, etc., has broad application prospects in portable electrical appliances, electric tools, large energy storage, electric transportation power supply, etc.

[0003] In the industrial production process, the production process of lithium battery is divided into pole piece, front process, rear process and capacity, which contains stirring, liquid injection, winding, assembly and other processes. The vacuum system is used in these process production scenes to provide power for the production process. According to the process requirements on the spot, the vacuum system is directly connected with the equipment, so that the stirring and liquid injection process often encounters the phenomenon that part of the raw materials is sucked away by the vacuum negative pressure during operation. For example, in the process of vacuumizing the tank in the stirring process, part of the carbon powder in the tank will be sucked into the vacuum system, causing blockage, and in severe cases, it will directly contaminate the lubricating oil of the vacuum pump, causing the oil temperature to be too high and the machine to stop, thereby directly affecting the production. Similarly, the liquid injection process during operation will also cause pipe crystallization, resulting in similar blockage. Therefore, how to effectively separate the gas and raw materials in the vacuum system has become a problem to be solved.

[0004] In the related art, a filter is used to filter the raw materials, but the traditional filter cannot completely separate the raw materials and the gas, and the pipe will still be blocked and the vacuum pump will be contaminated. SUMMARY

[0005] In view of the above problems, the present application provides a gas separator and a vacuum system, which aims to improve the separation effect of raw materials and gas, so as to solve the problem that raw materials will block the pipe and contaminate the vacuum pump.

[0006] The present application provides a gas separator, which comprises a shell and an air inlet pipe; the shell is provided with a mounting port and an air outlet; the air inlet pipe is provided with an air inlet and a through port, one end of the air inlet pipe provided with the through port is inserted into the shell from the mounting port, and a first blocking member is arranged on an air outlet path between the through port and the air outlet; the through port comprises an end opening arranged at an end of the air inlet pipe and a side opening arranged at a side wall of the air inlet pipe.

[0007] In the technical scheme of the embodiment of the present application, the technical scheme of the present application is characterized in that a first blocking member is arranged in the shell. When the fluid containing raw materials (carbon powder or electrolyte) is sucked by the vacuum system, the fluid enters the air inlet pipe from the air inlet, and then hits the inner wall of the shell and the first blocking member from the through opening of the air inlet pipe. The fluid is blocked by the first blocking member, so that the flow path and resistance of the fluid are increased, and the flow rate of the fluid is continuously attenuated as the fluid continuously rises. When the flow rate of the fluid is attenuated to a certain speed, the raw materials will no longer flow with the fluid, and at this time, the raw materials will continuously accumulate to form large particles and settle. Through the continuous circulation of the above process, the raw materials are continuously separated from the fluid, so as to gradually fill the shell, thereby realizing the gas-solid and gas-liquid separation of the fluid, effectively improving the separation effect of the raw materials and the gas, and solving the problems that the raw materials block the pipeline and pollute the vacuum pump. In addition, after the fluid enters the air inlet pipe from the air inlet, the fluid can first be depressurized through the side opening to reduce the flow pressure of the fluid, so that the pressure of the fluid flowing out of the end opening is small and the flow rate is slow, so that the raw materials continuously accumulate to form large particles and settle under the action of their own gravity.

[0008] In some embodiments, the first blocking member is a spiral flow guide piece, and the spiral flow guide pieces are arranged at intervals on the outer periphery of the air inlet pipe and spirally extend from the bottom wall to the top wall of the shell. When the fluid containing raw materials is sucked by the vacuum system, the fluid enters the air inlet pipe from the air inlet, and then hits the inner wall of the shell from the through opening of the air inlet pipe, so that the fluid is spirally and directionally guided along the direction of the spiral flow guide piece, which can better increase the flow path and resistance of the fluid, so that the flow rate of the fluid is continuously attenuated as the fluid continuously rises. When the flow rate of the fluid is attenuated to a certain speed, the raw materials will no longer flow with the fluid, and at this time, the raw materials will continuously accumulate to form large particles and settle.

[0009] In some embodiments, the through opening is arranged close to the inner bottom wall of the shell, and the air outlet is arranged at the top of the shell. By arranging the air outlet at the top of the shell and arranging the through opening of the air inlet pipe close to the inner bottom wall of the shell, the fluid can flow from the through opening of the air inlet pipe and flow upward through the spiral flow guide piece, which can effectively increase the flow path and resistance of the fluid, so that the flow rate of the fluid is continuously attenuated as the fluid continuously rises. In addition, the fluid can be spirally and directionally guided along the direction of the spiral flow guide piece, which can make the raw materials better accumulate to form large particles and settle under the action of gravity.

[0010] In some embodiments, the shell comprises an outer shell and an inner shell; the outer shell is provided with a mounting port and a gas outlet; the inner shell is arranged in the outer shell and communicates with the outer shell; one end of the gas inlet pipe is inserted into the inner shell from the mounting port; the helical guide vane is arranged in the inner shell and extends helically from the bottom wall to the top wall of the inner shell. Such a design, by arranging the inner shell in the outer shell, the helical guide vane is installed in the inner shell, as time goes by and the frequency of use increases, when the inner shell is filled with raw materials, a small amount of raw materials will overflow from the inner shell to the outer shell, at this time, the user can observe the raw materials settled on the bottom wall of the outer shell to determine whether the gas separator needs to be cleaned, which can further avoid the occurrence of pipeline blockage.

[0011] In some embodiments, the outer shell is provided with an observation window. Such a design, the user can directly observe the raw materials settled on the bottom wall of the outer shell through the observation window to determine whether the gas separator needs to be cleaned, so as to observe the inside of the outer shell without opening the outer shell.

[0012] In some embodiments, the observation window is located at the bottom of the outer shell. Such a design, the user can observe the raw materials settled on the bottom wall of the outer shell more timely.

[0013] In some embodiments, the top of the inner shell is provided with a communication port communicating with the outer shell, and the inner shell is further provided with a first filter cotton, which is located between the helical guide vane and the communication port. Such a design, when the fluid flowing through the helical guide vane carries a small amount of raw materials upwards, the first filter cotton plays a blocking role, allowing the gas in the fluid to pass through, and the passing gas can enter the outer shell from the communication port at the top of the inner shell, and the first filter cotton can block the raw materials in the fluid, thereby further playing the effect of gas-solid and gas-liquid separation through the first filter cotton.

[0014] In some embodiments, the first filter cotton is provided with at least two layers. Such a design, by adopting at least two layers of first filter cotton, the raw materials in the fluid can be better blocked, thereby further improving the effect of gas-solid and gas-liquid separation.

[0015] In some embodiments, the outer shell is further provided with a second filter cotton, which is located between the inner shell and the gas outlet. Such a design, as time goes by and the frequency of use increases, the raw materials will eventually overflow from the first filter cotton in the inner shell to the outer shell, as the flow rate of the fluid slows down, the gas in the fluid can pass through the second filter cotton, and finally flow to the vacuum pump from the gas outlet, while the raw materials in the fluid will be blocked by the second filter cotton and fall into the inside of the outer shell, thereby further playing the effect of gas-solid and gas-liquid separation through the second filter cotton.

[0016] In some embodiments, the helical guide vanes are detachably connected to the inner side wall of the inner shell. In such a design, when the gas separator needs to be cleaned, the helical guide vanes can be detached from the inner shell, which makes it more convenient to clean the raw materials accumulated on the helical guide vanes and the raw materials accumulated in the inner shell.

[0017] In some embodiments, the helix angle of the helical guide vanes is defined as α, and 0°<α≤3° is satisfied. In such a design, when the helix angle of the helical guide vanes is too large, the path of the fluid flowing through the helical guide vanes will be too small, resulting in too small resistance of the helical guide vanes to the fluid, so that the raw materials in the fluid cannot be effectively accumulated. Therefore, by controlling the helix angle of the helical guide vanes to be between 0° and 3°, the flow path and resistance of the fluid flowing through the helical guide vanes can be effectively increased, so that the raw materials in the fluid can be fully accumulated to form large particles and settle, achieving better gas-solid and gas-liquid separation effect.

[0018] In some embodiments, the width of the helical guide vanes is defined as w, and 100mm≤w≤270mm is satisfied. In such a design, when the width of the helical guide vanes is too small, the path of the fluid flowing through the helical guide vanes will be too small, resulting in too small resistance of the helical guide vanes to the fluid, so that the raw materials in the fluid cannot be effectively accumulated; and when the width of the helical guide vanes is too large, a larger volume of shell needs to be set, resulting in increased cost. Therefore, by controlling the width of the helical guide vanes to be between 100mm and 270mm, the flow path and resistance of the fluid flowing through the helical guide vanes can be effectively increased, so that the raw materials in the fluid can be fully accumulated to form large particles and settle, achieving better gas-solid and gas-liquid separation effect, while the cost can also be controlled.

[0019] In some embodiments, the first resistance member is a sheet structure, the sheet structure is arranged at intervals around the outer periphery of the gas inlet pipe, and the sheet structure comprises at least two layers of cutting elements, and the at least two layers of cutting elements are arranged at intervals in the direction from the bottom wall to the top wall of the shell. In such a design, when the fluid containing raw materials (carbon powder or electrolyte) is sucked by the vacuum system, the fluid enters the gas inlet pipe from the gas inlet, and then hits the cutting elements of the sheet structure from the opening of the gas inlet pipe. The fluid is cut into two parts by the cutting elements, one part moves above the cutting elements, and the other part moves below the cutting elements. When the two streams meet, the air will be forced to cancel each other out, so that the raw materials stay and accumulate to form large particles and settle. In addition, the sheet structure can also increase the distance and resistance of the fluid flow, so that the flow rate of the fluid will continuously decrease as the fluid continuously rises. When the flow rate of the fluid decreases to a certain speed, the raw materials will no longer flow with the fluid, and at this time the raw materials will also continuously accumulate to form large particles and settle.

[0020] In some embodiments, the opening degree of the end opening gradually increases along the air outlet direction. With such a design, the fluid can be further effectively depressurized when flowing through the horn-shaped end opening, so that the pressure of the fluid flowing out of the end opening is further reduced and the flow rate is further slowed down.

[0021] In some embodiments, the side wall of the air inlet pipe is provided with a plurality of side openings. With such a design, the fluid can be further effectively depressurized when flowing through the plurality of side openings, so that the pressure of the fluid flowing out of the end opening is further reduced and the flow rate is further slowed down.

[0022] In some embodiments, the shell is further provided with an exhaust port. With such a design, when the gas separator needs to be cleaned, the air inlet port and the air outlet port can be closed, and the exhaust port can be opened to balance the internal and external pressure difference, thereby facilitating the disassembly and cleaning of the gas separator.

[0023] The application also provides a vacuum system comprising the above-mentioned gas separator and a vacuum pump, wherein the vacuum pump is in communication with the air outlet port of the gas separator.

[0024] The above description is only a summary of the technical solutions of the application. In order to enable the technical means of the application to be more clearly understood, and to be implemented according to the content of the description, and in order to enable other purposes, features and advantages of the application to be more apparent and easy to understand, the following specific embodiments of the application are described. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in the drawings without any creative labor.

[0026] Figure 1 is a sectional view of an embodiment of the gas separator of the application;

[0027] Figure 2 is a kinetic principle diagram of an embodiment of the gas separator of the application;

[0028] Figure 3 is a top view of an embodiment of the gas separator of the application;

[0029] Figure 4 is a sectional view of another embodiment of the gas separator of the application;

[0030] Figure 5 is a kinetic principle diagram of another embodiment of the gas separator of the application.

[0031] Brief Description of Drawings

[0032]

[0033] The objectives, features and advantages of the present application will be further illustrated by the following embodiments in conjunction with the accompanying drawings. DETAILED DESCRIPTION

[0034] The embodiments of the technical solutions of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore only serve as examples, and cannot limit the protection scope of the present application.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application; the terms "comprising" and "having," and any variations thereof, as used herein are intended to cover a non-exclusive inclusion.

[0036] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0037] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearance of the phrase in various places in the specification indicates that the described features, structures, or characteristics can be included in at least one embodiment of the application. The skilled person explicitly and implicitly understands that the embodiments described herein can be combined with other embodiments.

[0038] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces).

[0039] In the description of the embodiments of the present application, the orientations or positional relationships indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or components referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0040] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two components or the interaction relationship between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0041] As a new type of secondary battery, lithium ion battery has the advantages of high energy density and power density, high working voltage, light weight, small size, long cycle life, good safety and green environmental protection, and has broad application prospects in portable electrical appliances, electric tools, large energy storage, electric transportation power supply and the like.

[0042] In the industrial production process, the production process of lithium battery is divided into pole piece, front process, rear process and capacity, which contains stirring, liquid injection, winding, assembly and the like. The vacuum system is used in these process production scenes in order to provide power for the production process. According to the process requirements on site, the vacuum system is directly connected with the equipment, therefore, during the operation of stirring and liquid injection process, the phenomenon of partial raw materials being sucked away by vacuum negative pressure often occurs. For example, in the process of vacuumizing the tank body in the stirring process, part of the carbon powder in the tank body is sucked into the vacuum system, causing blockage, and in severe cases, directly polluting the lubricating oil of the vacuum pump, causing the oil temperature to be too high and stopping, thereby directly affecting the production. Similarly, during the operation of the liquid injection process, pipe crystallization may also occur, resulting in a similar blockage. Therefore, how to effectively separate the gas and raw materials in the vacuum system has become a problem to be solved.

[0043] In the related art, a filter is used to filter the raw materials, but the traditional filter cannot completely separate the raw materials and the gas, and still causes blockage of the pipeline and pollution of the vacuum pump.

[0044] Based on the above problems, the gas separator 100 is proposed to improve the separation effect of raw materials and gas, so as to solve the problems of blocking the pipeline and polluting the vacuum pump.

[0045] Please refer to Figures 1 to 4 In an embodiment of the present application, the gas separator 100 includes a housing 10 and an air inlet pipe 20; the housing 10 is provided with a mounting port 11a and an air outlet 11b; the air inlet pipe 20 is provided with an air inlet 20a and an air outlet 20b, and the air inlet pipe 20 is inserted into the housing 10 from the mounting port 11a at one end provided with the air outlet 20b, and the first blocking member is arranged on the air outlet path between the air outlet 20b and the air outlet 11b; the air outlet 20b includes an end opening 20b1 arranged at the end of the air inlet pipe 20 and a side opening 20b2 arranged on the side wall of the air inlet pipe 20.

[0046] It can be understood that the housing 10 can be a cylindrical structure with an internal cavity, or a prismatic structure with an internal cavity, for mounting and fixing the air inlet pipe 20, the first blocking member and other structures. The mounting port 11a of the housing 10 is used to mount the air inlet pipe 20, so that the end of the air inlet pipe 20 provided with the air outlet 20b can be inserted into the interior of the housing 10 from the mounting port 11a.

[0047] Optionally, the air outlet 11b of the housing 10 can be provided with an air outlet pipe to realize the communication between the air outlet 11b and the vacuum pump through the air outlet pipe.

[0048] In actual application, the housing 10 can be a single-layer shell or a double-layer shell. When the housing 10 is a single-layer shell, the first blocking member can be mounted on the inner wall of the single-layer shell; when the housing 10 is a double-layer shell, the first blocking member can be mounted on the inner wall of the inner shell 12.

[0049] In actual application, the first blocking member can be a spiral flow guide vane 30, an arc-shaped flow guide vane, or other shaped flow guide vanes, or a sheet-shaped structure 30a capable of cutting the airflow, as long as it can block the flow of the airflow to increase the flow path and resistance of the fluid flow, and reduce the flow rate of the airflow.

[0050] In summary, in the technical scheme of the embodiment of the present application, the technical scheme of the present application is that the first blocking member is arranged in the shell 10. When the fluid with raw materials (carbon powder or electrolyte) is sucked by the vacuum system, the fluid enters the air inlet pipe 20 from the air inlet 20a, and then hits the inner wall of the shell 10 and the first blocking member from the through hole 20b of the air inlet pipe 20. The fluid is blocked by the first blocking member, so that the flow path and resistance of the fluid are increased, and the flow rate of the fluid is continuously attenuated as the fluid continuously rises. When the flow rate of the fluid is attenuated to a certain speed, the raw materials will no longer flow with the fluid, and at this time, the raw materials will continuously accumulate to form large particles and settle. Through the continuous circulation of the above process, the raw materials are continuously separated from the fluid, so as to gradually fill the shell 10, thereby realizing the gas-solid and gas-liquid separation of the fluid, effectively improving the separation effect of the raw materials and the gas, and solving the problems that the raw materials block the pipeline and pollute the vacuum pump. In addition, after the fluid enters the air inlet pipe 20 from the air inlet 20a, the fluid can first be depressurized through the side opening 20b2 to reduce the flow pressure of the fluid, so that the pressure of the fluid flowing out of the end opening 20b1 is small, and the flow rate is slow, thereby enabling the raw materials to continuously accumulate to form large particles and settle under the gravity of the raw materials.

[0051] In an embodiment of the present application, in combination with reference to Figure 1 , Figure 2 , the first blocking member is a spiral flow guide piece 30, the spiral flow guide piece 30 is arranged at intervals on the outer periphery of the air inlet pipe 20, and the spiral flow guide piece 30 is spirally extended from the bottom wall to the top wall of the shell 10.

[0052] The spiral flow guide piece 30 refers to a sheet structure spirally extended. When the fluid flows through the spiral flow guide piece 30, the fluid can flow on the surface of the spiral flow guide piece 30.

[0053] Such a design, when the fluid with raw materials is sucked by the vacuum system, the fluid enters the air inlet pipe 20 from the air inlet 20a, and then hits the inner wall of the shell 10 from the through hole 20b of the air inlet pipe 20, so that the fluid is spirally and directionally guided along the spiral flow guide piece 30, which can better increase the flow path and resistance of the fluid, so that the flow rate of the fluid is continuously attenuated as the fluid continuously rises. When the flow rate of the fluid is attenuated to a certain speed, the raw materials will no longer flow with the fluid, and at this time, the raw materials will continuously accumulate to form large particles and settle.

[0054] In some embodiments, the surface of the spiral flow guide piece 30 is a rough surface. When the fluid flows through the spiral flow guide piece 30, the raw materials can better accumulate on the surface of the spiral flow guide piece 30. The raw materials accumulated on the surface of the spiral flow guide piece 30 can further increase the roughness of the surface of the spiral flow guide piece 30, so that the subsequent raw materials can be better accumulated.

[0055] In an embodiment of the present application, in combination with reference toFigure 1 、 Figure 2 , the through hole 20b is arranged close to the inner bottom wall of the shell 10, and the air outlet 11b is arranged at the top of the shell 10.

[0056] Such a design, by arranging the air outlet 11b at the top of the shell 10 and arranging the through hole 20b of the air inlet pipe 20 close to the inner bottom wall of the shell 10, can make the fluid flow from the through hole 20b of the air inlet pipe 20 and then flow upwards through the spiral flow guide 30, effectively increasing the flow path and resistance of the fluid, so that the flow rate of the fluid will continuously decrease as the fluid continuously rises. In addition, the fluid can be spirally upwardly directed along the spiral flow guide 30, which can make the raw materials better accumulate to form large particles and settle under the action of gravity.

[0057] In an embodiment of the present application, in combination with the above description Figure 1 , the shell 10 includes an outer shell 11 and an inner shell 12; the outer shell 11 is provided with a mounting hole 11a and an air outlet 11b; the inner shell 12 is arranged in the outer shell 11 and communicates with the outer shell 11; one end of the air inlet pipe 20 is inserted into the inner shell 12 from the mounting hole 11a; the spiral flow guide 30 is arranged in the inner shell 12 and spirally extends along the direction from the bottom wall to the top wall of the inner shell 12.

[0058] It can be understood that the outer shell 11 and the inner shell 12 form a double-layer shell structure design, and one end of the air inlet pipe 20 is inserted into the inner shell 12 after being inserted into the inside of the outer shell 11 from the mounting hole 11a.

[0059] Such a design, by arranging the inner shell 12 in the outer shell 11 to install the spiral flow guide 30 in the inner shell 12, as time goes by and the use frequency increases, when the inner shell 12 is filled with raw materials, a small amount of raw materials will overflow from the inner shell 12 to the outer shell 11, at which time the raw materials settled at the bottom wall of the outer shell 11 can be observed to determine whether the gas separator 100 needs to be cleaned, which can further avoid the occurrence of pipeline blockage.

[0060] In some embodiments, the outer shell 11 can include an outer bottom shell 111 and an outer upper cover 112, and the outer upper cover 112 can be installed on the outer bottom shell 111 by using the clamping ears 113, which facilitates the installation of the inner shell 12 into the outer shell 11. Of course, in other embodiments, the outer upper cover 112 can also be installed on the outer bottom shell 111 by using bolts or other ways.

[0061] In some embodiments, the inner shell 12 can include an inner bottom shell 121 and an inner upper cover 122, and the inner upper cover 122 can be installed on the inner bottom shell 121 by using the screws 123, which facilitates the installation of the spiral flow guide 30 into the inner shell 12. Of course, in other embodiments, the inner upper cover 122 can also be installed on the inner bottom shell 121 by using buckles or other ways.

[0062] In some embodiments, the air inlet pipe 20 can be mounted on the inner wall of the shell 11 by using the clamp 21 to improve the mounting reliability of the air inlet pipe 20. Of course, in other embodiments, the air inlet pipe 20 can also be mounted on the inner wall of the shell 11 by using bolts or other ways.

[0063] In an embodiment of the present application, referring to Figure 1 , the shell 11 is provided with an observation window 11c.

[0064] It can be understood that the observation window 11c is a transparent window, so that the user can observe the inside of the shell 11 through the observation window 11c.

[0065] In this way, the user can directly observe the raw materials settled at the bottom wall of the shell 11 through the observation window 11c, so as to judge whether the gas separator 100 needs to be cleaned, thereby being able to observe the inside of the shell 11 without opening the shell 11.

[0066] In actual application, the observation window 11c can be arranged at the bottom of the shell 11, or can be arranged at the side wall of the shell 11, as long as the inside of the shell 11 can be observed through the observation window 11c.

[0067] Optionally, in an embodiment of the present application, the observation window 11c is located at the bottom of the shell 11. In this way, the user can observe the raw materials settled at the bottom wall of the shell 11 more timely.

[0068] In an embodiment of the present application, referring to Figure 1 , the top of the inner shell 12 is provided with a communication port 12a which is in communication with the shell 11, and the inner shell 12 is further provided with a first filter cotton 40, which is located between the spiral flow guide vane 30 and the communication port 12a.

[0069] It can be understood that the upper and lower layers of the first filter cotton 40 are designed to be hollow, so as to realize the effective penetration of gas and the effective blocking of solids and liquids.

[0070] In this way, when the fluid flowing through the spiral flow guide vane 30 carries a small amount of raw materials upward, the first filter cotton 40 plays a blocking role, so that the gas in the fluid can pass through, and the gas passing through can enter the shell 11 from the communication port 12a at the top of the inner shell 12, and the first filter cotton 40 can block the raw materials in the fluid at the same time, thereby further playing the effect of gas-solid and gas-liquid separation through the first filter cotton 40.

[0071] In actual application, the first filter cotton 40 can be G4 cotton, activated carbon filter cotton, glass fiber filter cotton, etc., as long as it can separate the solids and liquids in the fluid.

[0072] Optionally, the first filter cotton 40 can be G4 cotton.

[0073] It should be noted that G4 cotton is a high-efficiency filter material mainly composed of polyester fibers and adhesive fibers. Polyester fibers are a kind of synthetic fibers with high strength, good heat resistance, no shrinkage, no fading, etc.; adhesive fibers are a kind of fiber mixture with good durability, softness and easy processability. The two kinds of fibers are bonded to each other by hot fusion technology to form G4 cotton, which has excellent filtering effect and long-term stability.

[0074] In an embodiment of the present application, referring to Figure 1 , the first filter cotton 40 can be provided with at least two layers.

[0075] It can be understood that the at least two layers of first filter cotton 40 are arranged in sequence.

[0076] Such design, using at least two layers of first filter cotton 40, can better block the raw materials in the fluid, thereby further improving the effect of gas-solid, gas-liquid separation.

[0077] In an embodiment of the present application, referring to Figure 1 , the second filter cotton 50 is further arranged in the shell 11, and the second filter cotton 50 is located between the inner shell 12 and the gas outlet 11b.

[0078] It can be understood that the upper and lower layers of the second filter cotton 50 are designed as hollow to realize effective penetration of gas and effective blocking of solid and liquid.

[0079] Such design, with the passage of time and the increase of use frequency, the raw materials will eventually overflow from the first filter cotton 40 in the inner shell 12 to the shell 11, and with the slowing down of the flow rate of the fluid, the gas in the fluid can pass through the second filter cotton 50 and finally flow to the vacuum pump from the gas outlet 11b, while the raw materials in the fluid will be blocked by the second filter cotton 50 and fall inside the shell 11, thereby further playing the effect of gas-solid, gas-liquid separation through the second filter cotton 50.

[0080] In actual application, the second filter cotton 50 can also be G4 cotton, activated carbon filter cotton, glass fiber filter cotton, etc., as long as it can separate the solid and liquid in the fluid.

[0081] Optionally, the second filter cotton 50 can also be G4 cotton.

[0082] In an embodiment of the present application, referring to Figure 1 , the spiral flow guide vane 30 is detachably connected to the inner side wall of the inner shell 12.

[0083] With this design, when cleaning the gas separator 100, the spiral guide vane 30 can be removed from the inner shell 12, which makes it easier to clean the raw materials accumulated on the spiral guide vane 30 and the raw materials accumulated in the inner shell 12.

[0084] In practical applications, the spiral guide vane 30 can be detachably connected to the inner wall of the inner shell 12 by means of screws, clips, etc.

[0085] In one embodiment of this application, in conjunction with reference to Figure 1 , Figure 2 If we define the helix angle of the spiral guide vane 30 as α, then the following condition must be met: 0° < α ≤ 3°.

[0086] Understandably, the spiral angle of the spiral guide vane 30 can be 0.3°, 0.6°, 0.8°, 1°, 1.2°, 1.6°, 1.8°, 2°, 2.5°, 3°, etc.

[0087] With this design, when the helix angle of the spiral guide vane 30 is too large, the path of the fluid flowing through the spiral guide vane 30 will be too small, resulting in too little resistance from the spiral guide vane 30 to the fluid. This prevents the raw materials in the fluid from effectively accumulating. Therefore, by controlling the helix angle of the spiral guide vane 30 between 0° and 3°, the flow path and resistance of the fluid when flowing through the spiral guide vane 30 can be effectively increased, allowing the raw materials in the fluid to fully accumulate and form large particles for sedimentation, thus achieving better gas-solid and gas-liquid separation effects.

[0088] In one embodiment of this application, in conjunction with reference to Figure 2 If the width of the spiral guide vane 30 is defined as w, then the following condition must be met: 100mm≤w≤270mm.

[0089] Understandably, the width of the spiral guide vane 30 can be 100mm, 110mm, 130mm, 140mm, 150mm, 170mm, 200mm, 210mm, 240mm, 250mm, 270mm, etc.

[0090] This design has several drawbacks. If the width of the spiral guide vane 30 is too small, the fluid's path through it will be too narrow, resulting in insufficient resistance and preventing the effective accumulation of raw materials. Conversely, if the width is too large, a larger housing 10 is required, increasing costs. Therefore, controlling the width of the spiral guide vane 30 between 100mm and 270mm effectively increases the fluid's flow path and resistance, allowing raw materials to accumulate and settle into larger particles, achieving better gas-solid and gas-liquid separation while controlling costs.

[0091] In another embodiment of the present application, referring to Figure 4 , In another embodiment of the present application, referring to Figure 5 , the first blocking member is a sheet structure 30a, which is arranged at intervals around the outer periphery of the air inlet pipe 20, and includes at least two layers of cutting elements 31 arranged at intervals along the direction from the bottom wall to the top wall of the shell 10.

[0092] The cutting element 31 of the sheet structure 30a refers to a structure capable of cutting the fluid flowing therethrough, for example, a blade. The surface of the cutting element 31 is a rough surface, and the raw material can better accumulate on the surface of the cutting element 31 when the fluid flows through the cutting element 31. The raw material accumulated on the surface of the cutting element 31 can further increase the roughness of the surface of the cutting element 31, thereby better enabling the subsequent raw material to accumulate. The cutting element 31 can be a ring structure arranged around the circumference of the air inlet pipe 20, or can be a petal-shaped structure along the circumference of the air inlet pipe 20. Moreover, after the fluid flows through the cutting element, it can flow from below to above the gap between the cutting element 31 and the air inlet pipe 20 under the guidance of the cutting element 31, or it can flow from below to above the gap between the cutting element 31 and the shell 10.

[0093] Such a design, when the fluid with raw material (carbon powder or electrolyte) is sucked into the vacuum system, the fluid enters the air inlet pipe 20 from the air inlet 20a, and then hits the cutting element 31 of the sheet structure 30a from the air outlet 20b of the air inlet pipe 20. The fluid is cut into two parts by the cutting element 31, one part of the fluid moves along the upper part of the cutting element 31, and the other part moves along the lower part of the cutting element 31. When the two fluids meet, the air force will be cancelled out, so that the raw material will not continuously accumulate to form large particles and settle. In addition, the sheet structure 30a can also increase the distance and resistance of the fluid flow, so that as the fluid continuously rises, the flow rate of the fluid will continuously decay. When the flow rate of the fluid decays to a certain speed, the raw material will no longer flow with the fluid, at which time the raw material will also continuously accumulate to form large particles and settle.

[0094] In an embodiment of the present application, referring to Figure 4 , the number of layers of the cutting element 31 is 17-25 layers.

[0095] It can be understood that the number of layers of the cutting element 31 can be 17 layers, 18 layers, 19 layers, 20 layers, 21 layers, 22 layers, 23 layers, 24 layers, or 25 layers.

[0096] The design can effectively increase the number of times that the cutting element 31 cuts the fluid, so that the raw materials in the fluid can be fully accumulated to form large particles and settle, achieving better gas-solid and gas-liquid separation effects, while the cost can also be controlled.

[0097] In an embodiment of the present application, in combination with reference to Figure 1 The opening degree of the end opening 20b1 gradually increases in the air outlet direction, that is, the end opening 20b1 is trumpet-shaped. Such a design can further achieve effective pressure relief of the fluid when the fluid flows through the trumpet-shaped end opening 20b1, so that the pressure of the fluid flowing out of the end opening 20b1 is further reduced, and the flow rate is further slowed down.

[0098] Optionally, in an embodiment of the present application, the side wall of the air inlet pipe 20 is provided with a plurality of side openings 20b2. Such a design can also further achieve effective pressure relief of the fluid when the fluid flows through the plurality of side openings 20b2, so that the pressure of the fluid flowing out of the end opening 20b1 is further reduced, and the flow rate is further slowed down.

[0099] In some embodiments, a plurality of side openings 20b2 can be spaced apart on the same circumferential surface of the air inlet pipe 20, so that the fluid can uniformly flow from the plurality of side openings 20b2 on the same circumferential surface to the outer circumferential first blocking member, achieving better pressure relief effect and achieving the purpose of further slowing down the flow rate.

[0100] The plurality of side openings 20b2 can also be spaced apart in the axial direction of the air inlet pipe 20, so that the fluid can gradually be relieved from the plurality of side openings 20b2 distributed in the axial direction, achieving the purpose of further slowing down the flow rate.

[0101] The plurality of side openings 20b2 can also be spaced apart in the axial direction of the air inlet pipe 20, so that the fluid can gradually be relieved from the plurality of side openings 20b2 distributed in the axial direction, achieving the purpose of further slowing down the flow rate.

[0102] In an embodiment of the present application, in combination with reference to Figure 1 , Figure 3 The shell 10 is also provided with an air outlet 11d.

[0103] In the present embodiment, an air exhaust valve is arranged at the air outlet 11d, so as to open or close the air outlet 11d through the air exhaust valve.

[0104] When the gas separator 100 needs to be cleaned, the gas inlet 20a and the gas outlet 11b can be closed, and the exhaust port 11d is opened to balance the pressure difference between the inside and outside, so as to facilitate the disassembly and cleaning of the gas separator 100.

[0105] The application also provides a vacuum system comprising the gas separator 100 and a vacuum pump. The specific structure of the gas separator 100 is described above. Since the vacuum system adopts all the technical solutions of the above-mentioned embodiments, it has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here. The vacuum pump is in communication with the gas outlet 11b of the gas separator 100.

[0106] According to some embodiments of the application, the application provides a gas separator 100, which comprises a shell 10, a gas inlet pipe 20, and a spiral flow guide 30. Figures 1 to 3 The shell 10 is provided with a mounting port 11a and a gas outlet 11b, and the gas outlet 11b is arranged at the top of the shell 10. The gas inlet pipe 20 is provided with a gas inlet 20a and a through port 20b, and one end of the gas inlet pipe 20 provided with the through port 20b is inserted into the shell 10 from the mounting port 11a, and the through port 20b is arranged close to the inner bottom wall of the shell 10. The spiral flow guide 30 is arranged in the shell 10 and is arranged at intervals on the outer periphery of the gas inlet pipe 20, and the spiral flow guide 30 is arranged in a spiral extending direction from the bottom wall to the top wall of the shell 10. The shell 10 comprises an outer shell 11 and an inner shell 12, and the spiral flow guide 30 is arranged in the inner shell 12 and is arranged in a spiral extending direction from the bottom wall to the top wall of the inner shell 12. The bottom of the outer shell 11 is provided with an observation window 11c. The inner shell 12 is provided with a first filter cotton 40, and the outer shell 11 is provided with a second filter cotton 50. The through port 20b of the gas inlet pipe 20 comprises an end opening 20b1 arranged at the end of the gas inlet pipe 20 and a side opening 20b2 arranged at the side wall of the gas inlet pipe 20.

[0107] The technical scheme of the present application provides the gas separator 100, when the fluid carrying raw materials (carbon powder or electrolyte) enters the inner shell 12 from the gas inlet 20a, gradually releases pressure through the side opening 20b2 of the gas inlet pipe 20, and the fluid flows out from the end opening 20b1. When the fluid passing through the side opening 20b2 is sucked into the vacuum system, the fluid will hit the inner wall of the inner shell 12, so that the fluid is spirally upwardly directed along the direction of the spiral flow guide 30, which can increase the flow path and resistance of the fluid, so that the flow rate of the fluid will continuously decrease as the fluid continuously rises. When the flow rate of the fluid decreases to a certain speed, the raw materials will no longer flow with the fluid, and at this time the raw materials will continuously accumulate to form large particles and settle. Through the continuous circulation of the above process, the raw materials are continuously separated from the fluid, so as to gradually fill the shell 10, thereby realizing the gas-solid and gas-liquid separation of the fluid, effectively improving the separation effect of the raw materials and the gas, and solving the problem that the raw materials will block the pipeline and pollute the vacuum pump.

[0108] When the remaining fluid flowing through the end opening 20b1 carries a small amount of raw materials upward, the first filter cotton 40 plays a blocking role to allow the gas in the fluid to pass through, and the passing gas can enter the outer shell 11 from the communication port 12a at the top of the inner shell 12. The first filter cotton 40 can block the raw materials in the fluid, thereby further playing the effect of gas-solid and gas-liquid separation through the first filter cotton 40. With the passage of time and the increase of use frequency, the raw materials will eventually overflow to the outer shell 11 through the first filter cotton 40 in the inner shell 12. With the slowing down of the flow rate of the fluid, the gas in the fluid can pass through the second filter cotton 50, and finally flow to the vacuum pump from the gas outlet 11b. At the same time, the raw materials in the fluid will be blocked by the second filter cotton 50 and fall inside the outer shell 11. At this time, the user can observe whether the gas separator 100 needs to be cleaned by observing the inner bottom wall of the outer shell 11 through the observation window 11c, which can further avoid the occurrence of pipeline blockage.

[0109] When the gas separator 100 needs to be cleaned, the vacuum pump is switched to the standby gas separator 100, the gas inlet 20a and the gas outlet 11b of the gas separator 100 to be cleaned are closed, and the exhaust port 11d is opened to balance the pressure difference between the inside and outside, so as to disassemble and clean the gas separator. After cleaning, assemble in order, and after passing the airtightness detection, it can be put into operation as a standby and enter the next cycle period.

[0110] Under the application condition of lithium battery production, fully considering the advantages and disadvantages of the traditional filter, the application provides a gas separator 100 suitable for the vacuum system of lithium battery industry, adopts spiral guide vane 30 to dredge fluid, realizes gas-solid / gas-liquid separation through three stages of fluid speed reduction, solid / liquid accumulation and settlement, and effectively solves the problems of carbon powder or electrolyte blockage and crystallization caused by vacuum direct suction. Due to the differences in various specifications and materials, the application also discloses the material selection and size under different specification conditions, as shown in the following table 1. The scheme can closely combine the gas guide principle with the actual industrial production, completely solve the problems of carbon powder or electrolyte blockage and crystallization. Moreover, the gas separator 100 disclosed by the application only needs to be installed in the production site to meet the use requirements (without debugging), and the manufacturing cost is extremely low, and it is easy to popularize.

[0111] In order to better illustrate the effect of the scheme, the embodiment also provides equipment models and material selection under different sizes, as shown in the following table (table 1):

[0112] Table 1: Size and material selection of spiral guide type gas separator

[0113]

[0114] The above table is to illustrate the size and material selection of different gas separators, and the too small size and the too large size are not enumerated, the engineering personnel can calculate according to the data in the table, and the data do not escape the protection scope of the patent, and also belong to the protection scope of the patent.

[0115] The above is only an exemplary embodiment of the application, and does not limit the patent scope of the application, and any equivalent structural transformation made under the technical concept of the application, or direct / indirect application in other related technical fields is included in the patent protection scope of the application.

Claims

1. A gas separator, characterized by The gas separator comprises: a housing provided with a mounting port and an air outlet port; an air inlet pipe provided with an air inlet port and a through port, one end of the air inlet pipe being inserted into the housing from the mounting port, a first blocking member being arranged on an air outlet path between the through port and the air outlet port, the through port comprising an end opening arranged at an end of the air inlet pipe and a side opening arranged at a side wall of the air inlet pipe, the first blocking member being in a sheet structure, the sheet structure being arranged at intervals around an outer periphery of the air inlet pipe, the sheet structure comprising at least two layers of cutting elements, the at least two layers of cutting elements being arranged at intervals in a direction from a bottom wall to a top wall of the housing; at least part of the cutting elements is located at a periphery of the side opening, fluid entering the air inlet pipe from the air inlet port flows to a bottom of the cutting elements from the end opening and flows to one side of the cutting elements from the side opening, the cutting elements being used to cut the fluid flowing to one side of the cutting elements from the side opening, so that the fluid is cut into two parts by the cutting elements, one part of the fluid moving above the cutting elements, and the other part of the fluid moving below the cutting elements, the two parts of the fluid meeting and canceling each other in an inner cavity between adjacent two layers of the cutting elements. The through port is arranged close to an inner bottom wall of the housing, and the air outlet port is arranged at a top of the housing.

2. The gas separator of claim 1, wherein, The housing comprises:

3. The gas separator of claim 1, wherein, an outer shell provided with the mounting port and the air outlet port; an inner shell arranged in the outer shell and in communication with the outer shell, one end of the air inlet pipe being inserted into the inner shell from the mounting port. The outer shell is provided with an observation window.

4. The gas separator of claim 3, wherein, The observation window is located at a bottom of the outer shell.

5. The gas separator of claim 4, wherein, A communication port in communication with the outer shell is arranged at a top of the inner shell, and a first filter cotton is further arranged in the inner shell, the first filter cotton being located between the sheet structure and the communication port.

6. The gas separator of claim 3, wherein, The first filter cotton is provided with at least two layers.

7. The gas separator of claim 6, wherein, A second filter cotton is further arranged in the outer shell, the second filter cotton being located between the inner shell and the air outlet port.

8. The gas separator of claim 3, wherein, An opening degree of the end opening gradually increases in an air outlet direction; 9. The gas separator of any one of claims 1 to 8, wherein, and / or, the side wall of the air inlet pipe is provided with a plurality of side openings. The housing is further provided with an exhaust port.

10. The gas separator of any one of claims 1 to 8, wherein, The gas separator comprises:

11. A vacuum system, characterized by the gas separator according to any one of claims 1 to 10; a vacuum pump in communication with the air outlet port of the gas separator. ​

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