Gas separator and vacuum system

Abstract

The invention discloses a gas separator and a vacuum system, and relates to the technical field of battery production, the gas separator comprises a shell and a gas inlet pipe; the shell is provided with a mounting opening and an air inlet; the air inlet pipe is provided with an air inlet and a passing opening, the end, provided with the passing opening, of the air inlet pipe extends into the shell from the mounting opening, and the passing opening comprises an end opening formed in the end of the air inlet pipe and a side opening formed in the side wall of the air inlet pipe; cutting pieces are arranged on an air outlet path between the passing opening and the air outlet, the cutting pieces are arranged on the periphery of the air inlet pipe at intervals, each cutting piece 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; the cutting element is provided with an air passing channel communicated with the through opening and the air outlet, and the air passing channel is used for allowing fluid to penetrate through the cutting element. According to the scheme, the raw material and gas separation effect can be improved, and the problems that raw materials block a pipeline and pollute a vacuum pump are solved.

Description

Technical Field

[0001] The invention relates to the technical field of battery production, and in particular to a gas separator and a vacuum system. Background Art

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

[0003] In the industrial production process, the production process of lithium batteries is divided into pole pieces, front processes, back processes and capacity, which include stirring, injection, winding, assembly and other processes. Vacuum systems are used in these production scenarios to provide power for the production process. According to the on-site process requirements, the vacuum system is directly connected to the equipment. Therefore, during the operation of the stirring and injection processes, the vacuum negative pressure often extracts some raw materials. For example, in the stirring process, part of the carbon powder inside will be sucked into the vacuum system during the vacuum pumping of the tank, causing blockage. In severe cases, it will directly contaminate the lubricating oil of the vacuum pump, causing the oil temperature to be too high and shut down, which directly affects production. Similarly, the injection process will also cause crystallization of the pipeline during the operation, resulting in a similar blockage. Therefore, how to effectively separate the gas and raw materials in the vacuum system has become an urgent problem to be solved.

[0004] In the related art, filters are used to filter raw materials, but traditional filters do not completely separate the raw materials from the gas, and will still clog the pipeline and pollute the vacuum pump. Summary of the invention

[0005] In view of the above problems, the present application provides a gas separator and a vacuum system, aiming to improve the separation effect of raw materials and gas, so as to solve the problem that raw materials may block pipelines and pollute vacuum pumps.

[0006] The present application provides a gas separator, comprising a shell, an air inlet pipe and a cutting piece; the shell is provided with a mounting port and an air outlet; the air inlet pipe is provided with an air inlet port and a passing port, one end of the air inlet pipe provided with the passing port extends from the mounting port into the shell, the passing port comprises an end opening arranged at the end of the air inlet pipe, and a side opening arranged on the side wall of the air inlet pipe; a cutting piece is provided on the air outlet path between the passing port and the air outlet, the cutting piece is arranged at intervals on the outer periphery of the air inlet pipe, the cutting piece 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; the cutting element is provided with an air passing channel connecting the passing port and the air outlet, and the air passing channel is used for allowing fluid to pass through the cutting element.

[0007] In the technical solution of the embodiment of the present application, the technical solution of the present invention is to set the port of the air inlet pipe to an end opening provided at the end of the air inlet pipe and a side opening provided at the side wall of the air inlet pipe. After the fluid enters the air inlet pipe from the air inlet port, it 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 becomes smaller and the flow rate becomes slower, so that the raw materials are continuously accumulated under their own gravity to form large particles and settle. Through the continuous cycle of the above process, the raw materials are continuously separated from the fluid 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 problem that the raw materials will block the pipeline and pollute the vacuum pump. In addition, a cutting piece is provided on the air outlet path between the through port and the air outlet, and the cutting piece includes at least two layers of cutting elements, and the at least two layers of cutting elements are spaced apart in the direction from the bottom wall to the top wall of the shell. When the fluid carrying the raw material is sucked into the vacuum system, the fluid enters the air inlet pipe from the air inlet, and then hits the cutting element from the through port of the air inlet pipe. The fluid is better cut into two parts of the fluid by the cutting element, one part of the fluid moves along the top of the cutting element, and the other part moves along the bottom of the cutting element. When the two fluids meet in the inner cavity between the two adjacent layers of cutting elements, the air forces in the inner cavity are offset to each other, thereby making The raw materials stay in the inner cavity between the two adjacent layers of cutting elements and accumulate continuously to form large particles and settle. In addition, since the cutting element is provided with an air passage connecting the inlet and the air outlet, when the fluid flows through one side surface of the cutting element, part of the fluid will flow from the air passage to the other side surface of the cutting element, so that the fluid flows between the layers of cutting elements and generates turbulence. At the same time, the flow path of the fluid can be extended, so that the raw materials can further stay in the inner cavity between the two adjacent layers of cutting elements and in the air passage and accumulate continuously to form large particles and settle, thereby further improving the separation effect of the raw materials and the gas.

[0008] In some embodiments, the opening of the end opening gradually increases along the air outlet direction. With such a design, when the fluid flows through the trumpet-shaped end opening, the fluid pressure can be further effectively released, so that the pressure of the fluid flowing out of the end opening can be further reduced and the flow rate can be further slowed down.

[0009] In some embodiments, the side wall of the air inlet pipe is provided with a plurality of side openings. With such a design, when the fluid flows through the plurality of side openings, the fluid pressure can be further effectively released, so that the pressure of the fluid flowing out from the end opening can be further reduced and the flow rate can be further slowed down.

[0010] In some embodiments, the shell includes an outer shell and an inner shell; the outer shell is provided with a mounting port and an air outlet; the inner shell is provided inside the outer shell and communicated with the outer shell; one end of the air inlet pipe provided with a port is inserted into the inner shell from the mounting port. In this design, by providing an inner shell inside the outer shell, one end of the air inlet pipe is inserted into the inner shell from the mounting port. 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 into the outer shell. At this time, it can be judged whether the gas separator needs to be cleaned by observing the raw materials settled on the bottom wall of the outer shell, which can further avoid the occurrence of pipeline blockage.

[0011] In some embodiments, the top of the inner shell is provided with a connecting port connected to the outer shell, and a first filter cotton is further provided in the inner shell, and the first filter cotton is located on the gas outlet path between the port and the connecting port. With such a design, when the fluid carries a small amount of raw materials and rises, 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 connecting port at the top of the inner shell, and the first filter cotton can also block the raw materials in the fluid, thereby further achieving the effect of gas-solid and gas-liquid separation through the first filter cotton.

[0012] In some embodiments, the first filter cotton is provided with at least two layers. Such a design, using at least two layers of the first filter cotton, can better block the raw materials in the fluid, thereby further improving the gas-solid and gas-liquid separation effects.

[0013] In some embodiments, a second filter cotton is further provided in the outer shell, and the second filter cotton is located between the inner shell and the air outlet. With such a design, as time goes by and the frequency of use increases, the raw materials will eventually pass through the first filter cotton in the inner shell and overflow into 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 eventually flow from the air outlet to the vacuum pump. At the same time, the raw materials in the fluid will be blocked by the second filter cotton and fall into the inner shell, thereby further achieving the effect of gas-solid and gas-liquid separation through the second filter cotton.

[0014] In some embodiments, the cutting element is disposed in the inner shell, and at least two layers of cutting elements are spaced apart from each other along the direction from the bottom wall to the top wall of the inner shell. With such a design, by installing the cutting element in the inner shell, as time goes by and the frequency of use increases, the raw materials in the fluid can be fully separated and settled in the inner shell under the cutting and blocking of the cutting element. When the inner shell is filled with raw materials, the inner shell can be directly removed for cleaning.

[0015] In some embodiments, the air outlet is arranged at the top of the outer shell, and the through-port is arranged near the inner bottom wall of the inner shell. With such a design, by arranging the air outlet at the top of the outer shell and arranging the through-port of the air inlet pipe near the inner bottom wall of the inner shell, the fluid can be cut into two parts of fluid by the cutting element after flowing out of the through-port, one part of the fluid moves along the top of the cutting element, and the other part moves along the bottom of the cutting element. When the two fluids meet in the inner cavity between two adjacent layers of cutting elements, the air forces in the inner cavity will be offset. In addition, the raw materials can be better accumulated to form large particles and settle under the action of gravity.

[0016] In some embodiments, the cutting element is annular and arranged around the air inlet pipe, and the annular cutting element is provided with a plurality of air passages spaced apart along the circumferential direction. Such a design enables the fluid to be cut by the annular cutting element no matter from which direction the fluid flows from the air inlet pipe to the inner wall of the shell, so that the raw materials can be better accumulated to form large particles and settle; in addition, by providing a plurality of air passages spaced apart along the circumferential direction on the annular cutting element, the fluid can pass through the cutting element at different positions of the cutting element, so that the fluid flows between each layer of the cutting element to generate a stronger turbulence phenomenon, and at the same time, the flow path of the fluid can be further extended, so that the raw materials can further stay in the inner cavity between two adjacent layers of the cutting elements and accumulate to form large particles and settle.

[0017] In some embodiments, the cutting element includes at least two cutting units, and the at least two cutting units are spaced apart along the circumference and / or radial direction of the air inlet pipe, and an air passage is formed between two adjacent cutting units. Such a design can be made by splicing at least two cutting units into a cutting element, so that an air passage is formed between two adjacent cutting units. When the fluid flows through one side surface of the cutting unit, part of the fluid will flow along the circumferential side wall of the cutting unit and flow from the air passage to the other side surface of the cutting unit, which can further extend the flow path of the fluid, thereby further allowing the raw materials to stay in the inner cavity between the two adjacent layers of cutting elements and in the air passage to accumulate and form large particles and settle.

[0018] In some embodiments, the cutting unit is circular or semicircular. Such a design can make the peripheral side wall of the cutting unit an arc-shaped side wall, so that the cross-sectional width of the air passage is gradually changed, so that the flow resistance of the fluid will increase during the process of the fluid flowing through the air passage, so that the raw materials can stay in the air passage better, accumulate continuously to form large particles and settle.

[0019] In some embodiments, the cutting piece is detachably connected to the inner side wall of the inner shell. With such a design, when the gas separator needs to be cleaned, the cutting piece can be removed from the inner shell, which makes it easier to clean the raw materials accumulated on the cutting piece and in the inner shell.

[0020] In some embodiments, the number of layers of the cutting element is 17 to 25. With such a design, when the number of layers of the cutting element is too small, the number of times the cutting element cuts the fluid is too small, so that the raw materials in the fluid cannot be effectively accumulated; and when the number of layers of the cutting element is too large, a larger shell volume needs to be set, resulting in increased costs. Therefore, by controlling the number of layers of the cutting element to 17 to 25 layers, the number of times the cutting element cuts the fluid 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 effects, while also being able to control costs.

[0021] In some embodiments, the width of the cutting element is defined as w, which satisfies: 100mm≤w≤270mm. With such a design, when the width of the cutting element is too small, the path of the fluid flowing through the cutting element will be too small, resulting in the cutting element's resistance to the fluid being too small, making it impossible for the raw materials in the fluid to be effectively accumulated; and when the width of the cutting element is too large, a larger shell needs to be provided, resulting in increased costs. Therefore, by controlling the width of the cutting element between 100mm and 270mm, the flow path and resistance of the fluid when flowing through the cutting element 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 effects, while also being able to control costs.

[0022] In some embodiments, the housing is provided with an observation window. With such a design, the user can directly observe the raw materials settled on the bottom wall of the housing through the observation window, so as to judge whether the gas separator needs to be cleaned, thereby being able to observe the situation inside the housing without opening the housing.

[0023] In some embodiments, the observation window is located at the bottom of the housing. With this design, the user can observe the raw materials settled on the bottom wall of the housing more timely.

[0024] In some embodiments, the housing is further provided with an exhaust port. With such a design, when the gas separator needs to be cleaned, the air inlet and the air outlet can be closed, and the exhaust port can be opened to achieve a balance of the internal and external pressure differences, thereby facilitating the disassembly and cleaning of the gas separator.

[0025] The present application also provides a vacuum system, comprising the above-mentioned gas separator and a vacuum pump, wherein the vacuum pump is connected to the gas outlet of the gas separator.

[0026] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, which can be implemented in accordance with the contents of the specification, and to make other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0028] Figure 1 A cross-sectional view of an embodiment of a gas separator of the present application; Figure 2 This is a kinetic principle diagram of an embodiment of a gas separator of the present application; Figure 3 A top view of an embodiment of a gas separator of the present application; Figure 4 A cross-sectional view of an embodiment of a gas separator of the present application; Figure 5 A cross-sectional view of another embodiment of the gas separator of the present application; Figure 6 A cross-sectional view of another embodiment of the gas separator of the present application; Figure 7 A cross-sectional view of another embodiment of the gas separator of the present application; Figure 8 This is a cross-sectional view of another embodiment of the gas separator of the present application.

[0029] Description of Figure Numbers:

[0030] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0033] 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 "multiple" is more than two, unless otherwise clearly and specifically defined.

[0034] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0035] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0036] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or component must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0037] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0038] As a new type of secondary battery, lithium-ion battery has the advantages of high energy density and power density, high operating voltage, light weight, small size, long cycle life, good safety, and green environmental protection. It has broad application prospects in portable appliances, power tools, large-scale energy storage, electric transportation power supply, etc.

[0039] In the industrial production process, the production process of lithium batteries is divided into pole pieces, front processes, back processes and capacity, which include stirring, injection, winding, assembly and other processes. Vacuum systems are used in these production scenarios to provide power for the production process. According to the on-site process requirements, the vacuum system is directly connected to the equipment. Therefore, during the operation of the stirring and injection processes, the vacuum negative pressure often extracts some raw materials. For example, in the stirring process, part of the carbon powder inside will be sucked into the vacuum system during the vacuum pumping of the tank, causing blockage. In severe cases, it will directly contaminate the lubricating oil of the vacuum pump, causing the oil temperature to be too high and shut down, which directly affects production. Similarly, the injection process will also cause crystallization of the pipeline during the operation, resulting in a similar blockage. Therefore, how to effectively separate the gas and raw materials in the vacuum system has become an urgent problem to be solved.

[0040] In the related art, filters are used to filter raw materials, but traditional filters do not completely separate the raw materials from the gas, and will still clog the pipeline and pollute the vacuum pump.

[0041] Based on the above problems, the present invention proposes a gas separator 100, which aims to improve the separation effect of raw materials and gas, so as to solve the problem that raw materials may block pipelines and pollute vacuum pumps.

[0042] See also Figures 1 to 4 In one embodiment of the present invention, the gas separator 100 includes a shell 10 and an air inlet pipe 20; the shell 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 a through port 20b, one end of the air inlet pipe 20 provided with the through port 20b extends into the shell 10 from the mounting port 11a, and the through port 20b includes an end opening 20b1 provided at the end of the air inlet pipe 20, and a side opening 20b2 provided on the side wall of the air inlet pipe 20; a cutting piece 30 is provided on the air outlet path between the through port 20b and the air outlet 11b, and the cutting piece 30 is arranged at intervals on the outer periphery of the air inlet pipe 20, and the cutting piece 30 includes at least two layers of cutting elements 31, and the at least two layers of cutting elements 31 are arranged at intervals along the direction from the bottom wall to the top wall of the shell 10; the cutting element 31 is provided with an air passage 31a connecting the through port 20b and the air outlet 11b, and the air passage 31a is used for allowing fluid to pass through the cutting element 31.

[0043] It is understandable that the housing 10 may be a cylindrical structure with a hollow interior, or a prismatic structure with a hollow interior, for mounting and fixing the air intake pipe 20, the cutting member 30 and other structures. The mounting opening 11a of the housing 10 is used to mount the air intake pipe 20, so that one end of the air intake pipe 20 with the through opening 20b can be inserted into the interior of the housing 10 from the mounting opening 11a.

[0044] Optionally, the air outlet 11 b of the housing 10 may be provided with an air outlet pipe, so that the air outlet 11 b is connected to the vacuum pump through the air outlet pipe.

[0045] In practical 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 end of the air inlet pipe 20 with the port 20b can extend into the interior of the single-layer shell; when the housing 10 is a double-layer shell, the end of the air inlet pipe 20 with the port 20b can extend into the interior of the inner shell 12.

[0046] It can be understood that the end opening 20 b 1 provided at the end of the air intake pipe 20 faces the inner bottom wall of the housing 10 , and the side opening 20 b 2 provided at the side wall of the air intake pipe 20 faces the inner side wall of the housing 10 .

[0047] The cutting member 30 refers to a structure capable of cutting the fluid flowing through. The cutting member can specifically be a cutting member 30 having at least two layers of cutting elements 31, or a cutting plate, cutting teeth, etc., as long as it can play the role of cutting the fluid. The cutting element 31 of the cutting member 30a refers to a structure capable of cutting the fluid flowing through, for example, it can be a blade.

[0048] In some embodiments, the surface of the cutting element 31 is a rough surface. When the fluid flows through the cutting element 31, the raw materials can be better deposited on the surface of the cutting element 31. The raw materials deposited 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 materials to be deposited.

[0049] In summary, in the technical solution of the embodiment of the present application, the technical solution of the present invention is to set the port 20b of the air inlet pipe 20 to be an end opening 20b1 provided at the end of the air inlet pipe 20 and a side opening 20b2 provided on the side wall of the air inlet pipe 20. After the fluid enters the air inlet pipe 20 from the air inlet port 20a, it 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 becomes smaller and the flow rate becomes slower, so that the raw materials are continuously accumulated under their own gravity to form large particles and settle. Through the continuous cycle of the above process, the raw materials are continuously separated from the fluid 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. In addition, a cutting piece 30 is provided on the air outlet path between the port 20b and the air outlet 11b, and the cutting piece 30 includes at least two layers of cutting elements 31, and the at least two layers of cutting elements 31 are arranged at intervals along the direction from the bottom wall to the top wall of the housing 10. When the fluid carrying the raw material is sucked into the vacuum system, the fluid enters the air inlet pipe 20 from the air inlet port 20a, and then hits the cutting element 31 from the port 20b of the air inlet pipe 20. The fluid is better cut into two parts of the fluid by the cutting element 31, one part of the fluid moves along the upper side of the cutting element 31, and the other part moves along the lower side of the cutting element 31. When the two fluids meet in the inner cavity between the two adjacent layers of cutting elements 31, the air forces in the inner cavity are realized to offset each other. , so that the raw material stays in the inner cavity between the two adjacent layers of cutting elements 31 and accumulates to form large particles and settles; in addition, since the cutting element 31 is provided with an air passage 31a connecting the through port 20b and the air outlet 11b, when the fluid flows through one side surface of the cutting element 31, part of the fluid will flow from the air passage 31a to the other side surface of the cutting element 31, so that the fluid flows between the layers of cutting elements 31 and generates turbulence, and at the same time, the flow path of the fluid can be extended, so that the raw material can further stay in the inner cavity between the two adjacent layers of cutting elements 31 and in the air passage 31a and accumulate to form large particles and settle, further improving the separation effect of the raw material and the gas.

[0050] In one embodiment of the present application, Figure 1 The opening degree of the end opening 20b1 gradually increases along the air outlet direction, that is, the end opening 20b1 is trumpet-shaped.

[0051] With such a design, the fluid can be further effectively decompressed when flowing through the trumpet-shaped end opening 20b1, so that the pressure of the fluid flowing out of the end opening 20b1 can be further reduced and the flow rate can be further slowed down.

[0052] In one embodiment of the present application, Figure 1The side wall of the air inlet pipe 20 is provided with a plurality of side openings 20b2. With such a design, when the fluid flows through the plurality of side openings 20b2, the fluid pressure can be further effectively released, so that the pressure of the fluid flowing out from the end opening 20b1 can be further reduced, and the flow rate can be further slowed down.

[0053] In some embodiments, multiple side openings 20b2 may be spaced apart on the same circumference of the intake pipe 20, so that the fluid can flow evenly from the multiple side openings 20b2 on the same circumference to the first resistance element on the periphery, achieving better pressure relief effect and further slowing down the flow rate.

[0054] A plurality of side openings 20b2 may be spaced apart in the axial direction of the air inlet pipe 20, so that the fluid can be gradually depressurized from the plurality of side openings 20b2 distributed in the axial direction, thereby further slowing down the flow velocity.

[0055] A plurality of side openings 20 b 2 may be spaced apart and distributed along the side wall of the air intake pipe 20 in a spiral manner.

[0056] In one embodiment of the present application, Figure 1 The housing 10 includes an outer shell 11 and an inner shell 12; the outer shell 11 is provided with a mounting port 11a and an air outlet 11b; the inner shell 12 is disposed in the outer shell 11 and communicated with the outer shell 11; one end of the air inlet pipe 20 is inserted into the inner shell 12 from the mounting port 11a.

[0057] It can be understood that the outer shell 11 and the inner shell 12 form a double-shell structure design, and one end of the air inlet pipe 20 is inserted into the inner shell 11 from the installation opening 11 a and then inserted into the inner shell 12 .

[0058] Such a design, by arranging an inner shell 12 inside the outer shell 11, so that one end of the intake pipe 20 provided with the port 20b is inserted into the inner shell 12 from the installation port 11a. As time goes by and the frequency of use increases, when the inner shell 12 is filled with raw materials, a small amount of raw materials will overflow from the inner shell 12 into the outer shell 11. At this time, it can be judged whether the gas separator 100 needs to be cleaned by observing the raw materials settled on the bottom wall of the outer shell 11, which can further avoid the occurrence of pipeline blockage.

[0059] In some embodiments, the outer shell 11 may include an outer bottom shell 111 and an outer upper cover 112, and the outer upper cover 112 may be mounted on the outer bottom shell 111 using a clamp 113, so that the inner shell 12 is easily mounted in the outer shell 11. Of course, in other embodiments, the outer upper cover 112 may also be mounted on the outer bottom shell 111 using bolts or other methods.

[0060] In some embodiments, the inner shell 12 may include an inner bottom shell 121 and an inner upper cover 122, and the inner upper cover 122 may be mounted on the inner bottom shell 121 using screws 123. Of course, in other embodiments, the inner upper cover 122 may also be mounted on the inner bottom shell 121 using buckles or other methods.

[0061] In some embodiments, the air intake pipe 20 can be installed on the inner wall of the housing 11 by using a clamp 21 to improve the installation reliability of the air intake pipe 20. Of course, in other embodiments, the air intake pipe 20 can also be installed on the inner wall of the housing 11 by using bolts or other methods.

[0062] In one embodiment of the present application, Figure 1 A connecting port 12a communicating with the outer shell 11 is provided at the top of the inner shell 12. A first filter cotton 40 is also provided in the inner shell 12. The first filter cotton 40 is located on the air outlet path between the port 20b and the connecting port 12a.

[0063] It can be understood that the upper and lower layers of the first filter cotton 40 adopt a hollow design to achieve effective gas penetration and effective blocking of solids and liquids.

[0064] With such a design, when the fluid rises with a small amount of raw materials, the first filter cotton 40 acts as a barrier, allowing the gas in the fluid to pass through. The passing gas can enter the outer shell 11 from the connecting port 12a at the top of the inner shell 12. The first filter cotton 40 can also block the raw materials in the fluid, thereby further achieving the effect of gas-solid and gas-liquid separation through the first filter cotton 40.

[0065] 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 solid and liquid in the fluid.

[0066] Optionally, the first filter cotton 40 may be G4 cotton.

[0067] It should be noted that G4 cotton is a high-efficiency filtration material, mainly composed of polyester fiber and bonding fiber. Polyester fiber is a synthetic fiber with high strength, good heat resistance, no shrinkage, no fading and other characteristics; bonding fiber is a fiber mixture with good durability, softness and easy processing. These two fibers are bonded to each other through thermal fusion technology to form G4 cotton, which has excellent filtration effect and long-term stability.

[0068] In one embodiment of the present application, Figure 1 The first filter cotton 40 has at least two layers.

[0069] It can be understood that at least two layers of first filter cotton 40 are stacked in sequence.

[0070] Such a design, which uses at least two layers of first filter cotton 40, can better block the raw materials in the fluid, thereby further improving the gas-solid and gas-liquid separation effects.

[0071] In one embodiment of the present application, Figure 1 A second filter cotton 50 is also disposed in the outer shell 11 , and the second filter cotton 50 is located between the inner shell 12 and the air outlet 11 b .

[0072] It can be understood that the upper and lower layers of the second filter cotton 50 adopt a hollow design to achieve effective gas penetration and effective blocking of solids and liquids.

[0073] With such a design, as time goes by and the frequency of use increases, the raw materials will eventually pass through the first filter cotton 40 in the inner shell 12 and overflow into the outer shell 11. As the fluid flow rate slows down, the gas in the fluid can pass through the second filter cotton 50 and eventually flow from the air outlet 11b to the vacuum pump. At the same time, the raw materials in the fluid will be blocked by the second filter cotton 50 and fall into the interior of the outer shell 11, thereby further achieving the effect of gas-solid and gas-liquid separation through the second filter cotton 50.

[0074] 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.

[0075] Optionally, the second filter cotton 50 may also be G4 cotton.

[0076] In one embodiment of the present application, Figure 1 The cutting element 31 is disposed in the inner shell 12 , and at least two layers of cutting elements 31 are spaced apart from each other along the direction from the bottom wall to the top wall of the inner shell 12 .

[0077] With such a design, by installing the cutting piece 31 in the inner shell 12, as time goes by and the frequency of use increases, the raw materials in the fluid can be fully separated and settled in the inner shell 12 under the cutting and blocking of the cutting piece 31. When the inner shell 12 is filled with raw materials, the inner shell 12 can be directly removed for cleaning.

[0078] In one embodiment of the present application, Figure 1 The air outlet 10 b is disposed at the top of the outer shell 11 , and the air outlet 20 b is disposed close to the inner bottom wall of the inner shell 12 .

[0079] This design, by setting the air outlet 11b at the top of the outer shell 11 and setting the port 20b of the air inlet pipe 20 close to the inner bottom wall of the inner shell 12, can make the fluid flow out from the port 20b and be cut into two parts of fluid by the cutting element 31, one part of the fluid moves along the top of the cutting element 31, and the other part moves along the bottom of the cutting element 31. When the two fluids meet in the inner cavity between two adjacent layers of cutting elements 31, the air forces in the inner cavity will offset each other. In addition, the raw materials can be better accumulated under the action of gravity to form large particles and settle.

[0080] In one embodiment of the present application, Figure 4 The cutting element 31 is annular and arranged around the air inlet pipe 20. The annular cutting element 31 is provided with a plurality of air passages 31a distributed at intervals along the circumferential direction. Such a design allows the fluid to be cut by the annular cutting element 31 no matter from which direction the fluid flows from the air inlet pipe 20 to the inner wall of the housing 10, so that the raw materials can be better accumulated to form large particles and settle; in addition, by providing a plurality of air passages 31a distributed at intervals along the circumferential direction on the annular cutting element 31, the fluid can pass through the cutting element 31 at different positions of the cutting element 31, so that the fluid flows between each layer of the cutting elements 31 and generates a stronger turbulence phenomenon, and at the same time, the flow path of the fluid can be further extended, so that the raw materials can stay in the inner cavity between two adjacent layers of the cutting elements 31 and accumulate to form large particles and settle.

[0081] In one embodiment of the present application, Figures 5 to 8 The cutting element 31 includes at least two cutting units 311 , and the at least two cutting units 311 are spaced apart along the circumferential direction and / or radial direction of the intake pipe 20 , and an air passage 31 a is formed between two adjacent cutting units 311 .

[0082] Such a design can adopt at least two cutting units 311 to be spliced ​​together to form a cutting element 31, so that an air passage 31a is formed between two adjacent cutting units 311. When the fluid flows through one side surface of the cutting unit 311, part of the fluid will flow along the peripheral side wall of the cutting unit 311 and flow from the air passage 31a to the other side surface of the cutting unit 311, which can further extend the flow path of the fluid, thereby further allowing the raw materials to stay in the inner cavity between the two adjacent layers of cutting elements 31 and in the air passage 31a to accumulate and form large particles and settle.

[0083] In one embodiment of the present application, Figures 5 to 8 , the cutting unit 311 is circular or semicircular.

[0084] Such a design can make the peripheral side walls of the cutting unit 311 into arc-shaped side walls, so that the cross-sectional width of the air passage 31a is gradually designed. Then, the flow resistance of the fluid will increase during the process of flowing through the air passage 31a, so that the raw materials can stay better in the air passage 31a, accumulate continuously to form large particles and settle.

[0085] In one embodiment, in conjunction with reference to Figure 5 and Figure 6 The cutting element 31 includes a plurality of semicircular cutting units 311, and the plurality of cutting units 311 are spaced apart along the circumference of the intake pipe 20. It should be noted that the semicircular refers to a structure in which a portion is cut off relative to a circle, not half of a circle.

[0086] In another embodiment, in conjunction with reference to Figure 7 The cutting element 31 includes a plurality of circular cutting units 311 , and the plurality of cutting units 311 are distributed at intervals along the circumference of the intake pipe 20 .

[0087] In yet another embodiment, in conjunction with reference to Figure 8 The cutting element 31 includes a plurality of circular cutting units 311 , a portion of the cutting units 311 are distributed at intervals along the circumference of the air intake pipe 20 , and another portion of the cutting units 311 are distributed at intervals along the radial direction of the air intake pipe 20 .

[0088] In one embodiment of the present application, Figure 1 The cutting piece 30 is detachably connected to the inner wall of the inner shell 12 .

[0089] With such a design, when the gas separator 100 needs to be cleaned, the cutting piece 30 can be removed from the inner shell 12 , which makes it easier to clean the raw materials accumulated on the cutting piece 30 and in the inner shell 12 .

[0090] In practical applications, the cutting member 30 can be detachably connected to the inner wall of the inner shell 12 by means of screws, buckles, etc.

[0091] In one embodiment of the present application, Figure 1 , the number of layers of the cutting element 31 is 17 to 25 layers.

[0092] It can be understood that the number of layers of the cutting element 31 can specifically be 17 layers, 18 layers, 19 layers, 20 layers, 21 layers, 22 layers, 23 layers, 24 layers, or 25 layers.

[0093] In such a design, when the number of layers of the cutting element 31 is too small, the number of times the cutting element 31 cuts the fluid is too small, so that the raw materials in the fluid cannot be effectively accumulated; and when the number of layers of the cutting element 31 is too large, a larger housing 10 needs to be provided, resulting in increased costs. Therefore, by controlling the number of layers of the cutting element 31 to 17 to 25 layers, the number of times the cutting element 31 cuts the fluid 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 effects, while also being able to control costs.

[0094] In one embodiment of the present application, Figure 1 , defining the width of the cutting element 31 as w, then the following is satisfied: 100 mm ≤ w ≤ 270 mm.

[0095] It can be understood that the width of the cutting element 31 can be 100 mm, 110 mm, 130 mm, 140 mm, 150 mm, 170 mm, 200 mm, 210 mm, 240 mm, 250 mm, 270 mm, etc.

[0096] In such a design, when the width of the cutting element 31 is too small, the path of the fluid flowing through the cutting element 31 will be too small, resulting in too little resistance of the cutting element 31 to the fluid, so that the raw materials in the fluid cannot be effectively accumulated; and when the width of the cutting element 31 is too large, a larger shell 10 needs to be provided, resulting in increased costs. Therefore, by controlling the width of the cutting element 31 between 100 mm and 270 mm, the flow path and resistance of the fluid when flowing through the cutting element 30 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 effects, while also being able to control costs.

[0097] In one embodiment of the present application, Figure 1 The housing 11 is provided with an observation window 11c.

[0098] It can be understood that the observation window 11 c is a transparent window, so that the user can observe the situation inside the housing 11 through the observation window 11 c.

[0099] With such a design, the user can directly observe the raw materials settled on the bottom wall of the shell 11 through the observation window 11 c to determine whether the gas separator 100 needs to be cleaned, thereby being able to observe the situation inside the shell 11 without opening the shell 11.

[0100] In practical applications, the observation window 11 c may be disposed at the bottom of the housing 11 or at the side wall of the housing 11 , as long as the situation inside the housing 11 can be observed through the observation window 11 c .

[0101] Optionally, in an embodiment of the present application, the observation window 11c is located at the bottom of the housing 11. With such a design, the user can observe the raw materials settled on the bottom wall of the housing 11 more timely.

[0102] In one embodiment of the present application, Figure 1 , Figure 3 The housing 10 is also provided with an exhaust port 11d.

[0103] In this embodiment, an exhaust valve is provided at the exhaust port 11d, so that the exhaust port 11d can be opened or closed by the exhaust valve.

[0104] With such a design, when the gas separator 100 needs to be cleaned, the air inlet 20a and the air outlet 11b can be closed, and the exhaust port 11d can be opened to achieve a balance of the internal and external pressure differences, thereby facilitating the disassembly and cleaning of the gas separator 100.

[0105] The present application also proposes a vacuum system, which includes a gas separator 100 and a vacuum pump. The specific structure of the gas separator 100 refers to the above embodiment. Since the present vacuum system adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here. Among them, the vacuum pump is connected to the gas outlet 11b of the gas separator 100.

[0106] According to some embodiments of the present application, a gas separator 100 is provided. Figures 1 to 3 The gas separator 100 includes a shell 10, an air inlet pipe 20 and a cutting member 30; the shell 10 is provided with an air inlet 20a of a mounting port 11a, and the air inlet 20a is provided at the top of the shell 10; the air inlet pipe 20 is provided with an air inlet 20a and a through port 20b, and one end of the air inlet pipe 20 provided with the through port 20b extends from the mounting port 11a into the shell 10, and the through port 20b is provided near the inner bottom wall of the shell 10; the cutting member 30 is provided in the shell 10 and arranged at intervals on the outer periphery of the air inlet pipe 20, and the cutting member 30 includes at least two layers of cutting elements 31, and at least two layers of cutting elements 31 are arranged at intervals along the direction from the bottom wall to the top wall of the shell 10. The shell 10 includes an outer shell 11 and an inner shell 12; the cutting member 30 is provided in the inner shell 12 and arranged at intervals along the direction from the bottom wall to the top wall of the inner shell 12. An observation window 11c is provided at the bottom of the outer shell 11. 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 port 20b of the air inlet pipe 20 includes an end opening 20b1 provided at the end of the air inlet pipe 20, and a side opening 20b2 provided at the side wall of the air inlet pipe 20.

[0107] In the technical solution of the embodiment of the present application, the gas separator 100 proposed by the technical solution of the present invention, when the fluid carries the raw material (carbon powder or electrolyte) into the inner shell 12 from the air inlet 20a, the pressure is gradually released through the side opening 20b2 of the side wall of the air inlet pipe 20, and the terminal fluid flows out from the end opening 20b1. When the fluid passing through the side opening 20b2 is sucked by the vacuum system, the fluid will hit the cutting element 31, and the fluid will be cut into two parts of fluid by the cutting element 31, one part of the fluid moves along the top of the cutting element 31, and the other part moves along the bottom of the cutting element 31. When the two streams of fluid meet in the inner cavity between the two adjacent layers of cutting elements 31, the air force will be realized in the inner cavity and offset each other, so that the raw materials stay in the inner cavity between the two adjacent layers of cutting elements 31 and accumulate to form large particles and settle. In addition, the cutting piece 30 can also increase the distance and resistance of the fluid flow, so that as the fluid continues to rise, the flow rate of the fluid will continue to decay. When the flow rate of the fluid decays to a certain speed, the raw materials will no longer flow with the fluid, and the raw materials will continue to accumulate to form large particles and settle. Through the continuous cycle of the above process, the raw materials are continuously separated from the fluid 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 and rises, the first filter cotton 40 plays a blocking role, allowing the gas in the fluid to pass through. The passing gas can enter the outer shell 11 from the connecting port 12a at the top of the inner shell 12. The first filter cotton 40 can also block the raw materials in the fluid, thereby further achieving the effect of gas-solid and gas-liquid separation through the first filter cotton 40. As time goes by and the frequency of use increases, the raw materials will eventually pass through the first filter cotton 40 in the inner shell 12 and overflow into the outer shell 11. As the flow rate of the fluid slows down, the gas in the fluid can pass through the second filter cotton 50 and finally flow from the gas outlet 11b to the vacuum pump. At the same time, the raw materials in the fluid will be blocked by the second filter cotton 50 and fall into the interior of the outer shell 11. At this time, the user can observe the inner bottom wall of the outer shell 11 through the observation window 11c to determine whether the gas separator 100 needs to be cleaned, which can further avoid the occurrence of pipeline blockage.

[0109] When the gas separator 100 needs to be cleaned, the vacuum pump only needs to be switched to the spare gas separator 100, the air inlet 20a and the air outlet 11b of the gas separator 100 to be cleaned are closed, and the exhaust port 11d is opened to achieve the internal and external pressure difference balance, so as to disassemble and clean the gas separator. After cleaning, it is assembled in order, and after the airtightness test is passed, it can be put online as a spare and enter the next cycle.

[0110] Under the conditions of lithium battery production and application, and taking into full consideration the advantages and disadvantages of the use of traditional filters, the present invention provides a gas separator 100 suitable for the vacuum system of the lithium battery industry. It uses a multi-layer cutting element 31 to cut the fluid, and realizes gas-solid / gas-liquid separation through three stages of fluid deceleration, solid / liquid accumulation, and sedimentation, effectively solving the problems of carbon powder or electrolyte blockage and crystallization caused by vacuum direct extraction. Due to the differences in various specifications and materials, the present invention also discloses the material selection and size under different specifications, as shown in Table 1 below. This solution can closely combine the gas diversion principle with the actual industrial production, and completely solve the problems of carbon powder or electrolyte blockage and crystallization. Moreover, the gas separator 100 disclosed by the present invention only needs to be installed at the production site to meet the use requirements (no debugging is required), and the manufacturing cost is extremely low, and it is very easy to promote.

[0111] In order to better illustrate the effect of this solution, this embodiment also provides equipment models and materials of different sizes, as shown in the following table (Table 1): Table 1 Size, model and material selection of cutting element type gas separator

[0112] The above table is to illustrate the specifications, sizes and material selection of different gas separators. The undersized and oversized sizes are not listed in full. Engineers can make relevant calculations based on the data in the table. These data do not exceed the protection scope of this patent and also fall within the scope that needs to be protected by this patent.

[0113] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A gas separator, characterized in that: include: A housing, wherein the housing is provided with a mounting opening and an air outlet; and An air inlet pipe is provided with an air inlet port and a passage port, one end of the air inlet pipe provided with the passage port extends from the mounting port into the shell, the passage port comprises an end opening arranged at the end of the air inlet pipe, and a side opening arranged at the side wall of the air inlet pipe; a cutting piece is provided on the air outlet path between the passage port and the air outlet, the cutting piece is arranged at intervals on the outer periphery of the air inlet pipe, the cutting piece comprises at least two layers of cutting elements, at least two layers of the cutting elements are arranged at intervals along the direction from the bottom wall to the top wall of the shell; the cutting element is provided with an air passage channel connecting the passage port and the air outlet, the air passage channel is used for allowing fluid to pass through the cutting element.

2. The gas separator according to claim 1, characterized in that: The opening degree of the end opening gradually increases along the gas outlet direction.

3. The gas separator according to claim 1, characterized in that: The side wall of the air inlet pipe is provided with a plurality of side openings.

4. The gas separator according to claim 1, characterized in that The housing comprises: A housing, wherein the housing is provided with the mounting opening and the air outlet; An inner shell is arranged inside the outer shell and communicated with the outer shell; one end of the air inlet pipe is inserted into the inner shell from the installation port.

5. The gas separator according to claim 4, characterized in that A communication port communicating with the outer shell is disposed on the top of the inner shell. A first filter cotton is also disposed in the inner shell. The first filter cotton is located on the air outlet path between the port and the communication port.

6. The gas separator according to claim 5, characterized in that The first filter cotton is provided with at least two layers.

7. The gas separator according to claim 4, characterized in that A second filter cotton is also arranged in the outer shell, and the second filter cotton is located between the inner shell and the air outlet.

8. The gas separator according to claim 4, characterized in that: The cutting element is arranged in the inner shell, and at least two layers of the cutting elements are arranged at intervals along the direction from the bottom wall to the top wall of the inner shell.

9. The gas separator according to claim 8, characterized in that: The air outlet is arranged at the top of the outer shell, and the air outlet is arranged close to the inner bottom wall of the inner shell.

10. The gas separator according to claim 9, characterized in that The cutting element is annular and arranged around the air inlet pipe. The annular cutting element is provided with a plurality of air passages spaced apart along the circumferential direction.

11. The gas separator according to claim 9, characterized in that: The cutting element comprises at least two cutting units, and the at least two cutting units are spaced apart and distributed along the circumferential direction and / or radial direction of the air inlet pipe, and the air passage is formed between two adjacent cutting units.

12. The gas separator according to claim 11, characterized in that: The cutting unit is circular or semicircular.

13. The gas separator according to claim 8, characterized in that The cutting piece is detachably connected to the inner side wall of the inner shell.

14. The gas separator according to claim 8, characterized in that: The number of layers of the cutting element is 17 to 25; And / or, the width of the cutting element is defined as w, then the following is satisfied: 100 mm ≤ w ≤ 270 mm.

15. The gas separator according to claim 4, characterized in that The housing is provided with an observation window.

16. The gas separator according to claim 15, characterized in that The observation window is located at the bottom of the housing.

17. The gas separator according to any one of claims 1 to 16, characterized in that: The shell is also provided with an exhaust port.

18. A vacuum system, characterized in that: include: A gas separator as claimed in any one of claims 1 to 17; A vacuum pump is connected to the gas outlet of the gas separator.

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