WO2024087159A1 - Système de test d'élément filtre - Google Patents

Système de test d'élément filtre Download PDF

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Publication number
WO2024087159A1
WO2024087159A1 PCT/CN2022/128211 CN2022128211W WO2024087159A1 WO 2024087159 A1 WO2024087159 A1 WO 2024087159A1 CN 2022128211 W CN2022128211 W CN 2022128211W WO 2024087159 A1 WO2024087159 A1 WO 2024087159A1
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WIPO (PCT)
Prior art keywords
liquid
filter element
filter
testing system
storage container
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PCT/CN2022/128211
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English (en)
Chinese (zh)
Inventor
邱志强
杨宏锋
范艳煌
黄彩虾
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宁德时代新能源科技股份有限公司
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Priority to PCT/CN2022/128211 priority Critical patent/WO2024087159A1/fr
Publication of WO2024087159A1 publication Critical patent/WO2024087159A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
    • G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials

Definitions

  • the present application relates to the field of battery technology, and in particular to a filter element testing system.
  • a particle counter is generally used to test the number of particles in the liquid medium located upstream and downstream of the filter, and then the filtration efficiency of the filter is obtained by calculation.
  • this method can only test the filtration efficiency of the entire particles in the liquid medium and is not suitable for the battery industry.
  • the present application provides a filter element testing system, which can accurately evaluate the filtration efficiency of the filter element used to filter the liquid medium in the battery production process for metal particles, intercept unqualified filter element incoming materials, and reduce the product defective rate caused by filter element failure.
  • the present application provides a filter element testing system, comprising: a filtering device, the filtering device comprising a filter housing and a filter element, the filter housing having a filter cavity, a liquid inlet and a liquid outlet connected to the filter cavity, the filter element being arranged in the filter cavity; a conveying device, the conveying device being used to drive the liquid medium in the battery production process to enter the filter cavity from the liquid inlet to flow through the filter element and be discharged from the liquid outlet; a first sampling part, the first sampling part being connected to the liquid inlet; a second sampling part, the second sampling part being connected to the liquid outlet; and a cleanliness testing device, the cleanliness testing device being used to test the metal particles of the liquid medium obtained from the first sampling part and the second sampling part.
  • the original liquid of the liquid medium can be obtained from the first sampling part and the filtrate of the liquid medium can be obtained from the second sampling part, so that the cleanliness testing device can be used to test the metal particles in the original liquid of the liquid medium and the metal particles in the filtrate of the liquid medium, and finally the filtration efficiency of the filter element for metal particles can be calculated, the filtration efficiency of the filter element for metal particles used to filter the liquid medium in the battery production process can be accurately evaluated, unqualified filter element incoming materials can be intercepted, and the product defect rate caused by filter element failure can be reduced.
  • the first sampling portion has a first liquid passage cavity adapted to communicate with the liquid inlet and a first liquid discharge port that can be opened and closed, so as to facilitate the collection of the original liquid of the liquid medium.
  • the first sampling part is made of non-metallic material; or, the inner surface of the first liquid chamber has a non-metallic material layer to prevent metal impurity particles that may exist in the first sampling part from contaminating the original liquid of the liquid medium, thereby increasing the reliability of the blank sample and improving the accuracy of the test results of the metal particles in the original liquid of the liquid medium.
  • the filter element testing system also includes: a first liquid storage container, the first liquid storage container is connected to the first liquid chamber, and is used to store the liquid medium before filtration of the filter element; the conveying device is arranged between the first sampling part and the first liquid storage container; the conveying device can convey the original liquid of the liquid medium in the first liquid storage container toward the filtering device; the original liquid of the liquid medium flows through the first liquid chamber, which is convenient for collecting the original liquid of the liquid medium from the first liquid discharge port.
  • the first liquid storage container is made of non-metallic material; or, the inner surface of the first liquid storage container has a non-metallic material layer to prevent metal impurity particles that may exist in the first liquid storage container from contaminating the original liquid of the liquid medium, thereby increasing the reliability of the blank sample and improving the accuracy of the test results of the metal particles in the original liquid of the liquid medium.
  • the filter element testing system also includes a first support frame, which is arranged on a load-bearing surface, and the first liquid storage container is supported on the first support frame, so that the first liquid storage container can be stably placed on the load-bearing surface and interference between the first liquid storage container and the load-bearing surface can be avoided.
  • the distance between the bottom of the first liquid storage container and the carrying surface is 410 mm-460 mm, which not only avoids interference between the first liquid storage container and the carrying surface, but also facilitates liquid drainage.
  • the second sampling portion has a second liquid passage cavity adapted to communicate with the liquid outlet and a second liquid discharge port that can be opened and closed.
  • the filtrate of the liquid medium flowing through the second liquid passage cavity can be discharged from the second liquid discharge port, thereby facilitating the collection of the filtrate of the liquid medium.
  • the second sampling portion is made of non-metallic material; or, the inner surface of the second liquid cavity has a non-metallic material layer, so as to prevent the metal impurity particles that may exist in the second sampling portion from contaminating the filtrate of the liquid medium, thereby increasing the reliability of the blank sample and thus improving the accuracy of the test results of the metal particles in the filtrate of the liquid medium.
  • the filter element testing system also includes: a second liquid storage container, which is connected to the second liquid chamber and is used to store the liquid medium filtered by the filter element.
  • the filtrate of the liquid medium obtained after filtering by the filtering device flows toward the second liquid storage container, and the filtrate of the liquid medium flows through the second liquid chamber, thereby facilitating the collection of the filtrate of the liquid medium from the second liquid discharge port.
  • the second liquid storage container is made of non-metallic material; or, the inner surface of the second liquid storage container has a non-metallic material layer to prevent metal impurity particles that may exist in the second liquid storage container from contaminating the filtrate of the liquid medium, thereby increasing the reliability of the blank sample and thus improving the accuracy of the test results of the metal particles in the filtrate of the liquid medium.
  • the filter element testing system also includes a second support frame, which is arranged on the bearing surface, and the second liquid storage container is supported on the second support frame, so that the second liquid storage container can be stably placed on the bearing surface and interference between the second liquid storage container and the bearing surface can be avoided.
  • the distance between the bottom of the second liquid storage container and the carrying surface is 410mm-460mm, which not only avoids interference between the second liquid storage container and the carrying surface, but also facilitates liquid drainage.
  • the filter housing is made of non-metallic material, or the wall of the filter cavity has a non-metallic material layer, so as to prevent metal impurity particles that may exist in the filter housing from contaminating the liquid medium, increase the reliability of the blank sample, and thus improve the accuracy of the test results of metal particles in the liquid medium.
  • a detachable adapter is provided in the filter housing, the adapter is connected to at least one of the liquid inlet and the liquid outlet, and the filter element is detachably provided on the adapter.
  • the adapter can be used to switch interfaces of different filter elements, so that the test system can test filter elements of different interfaces and different types, avoiding frequent replacement of the filter housing of the corresponding filter device.
  • the adapter is sealed with the filter housing and the corresponding filter element to prevent the original liquid and filtrate located upstream and downstream of the filter element from mixing and affecting the test results.
  • the adapter is made of non-metallic material to prevent metal impurity particles that may exist in the adapter from contaminating the liquid medium, increase the reliability of the blank sample, and thus improve the accuracy of the test results of the metal particles in the liquid medium.
  • the filter housing includes: a base; an upper housing, the upper housing is connected above the base, and the filter cavity is defined between the upper housing and the base.
  • the upper shell includes one; or, the upper shell includes multiple upper shells and the multiple upper shells can be selectively matched in sequence to adapt to the filter elements of different sizes, thereby achieving compatibility with filter elements of different lengths.
  • the filter element testing system further comprises: a transfer device, wherein the filtering device, the conveying device, the sampling part and the second sampling part are all arranged on the transfer device.
  • a transfer device wherein the filtering device, the conveying device, the sampling part and the second sampling part are all arranged on the transfer device.
  • FIG1 is a schematic diagram of a filter element testing system according to some embodiments of the present application.
  • FIG2 is a front view of a filter element testing system according to some embodiments of the present application.
  • FIG3 is a partial enlarged view of the structure shown in FIG2;
  • FIG. 4 is a schematic diagram of the connection between the filter element and the adapter shown in FIG. 2 .
  • Filter device 10 filter chamber 101, liquid inlet 102, liquid outlet 103, filter housing 11, base 111, upper housing 112, filter element 12, adapter 13, first sealing ring 141, second sealing ring 142, clamp 15,
  • Delivery device 21 differential pressure gauge 23, first delivery pipe 241, second delivery pipe 242,
  • Transfer device 60 bottom plate 61 , handle 62 , and running wheels 63 .
  • the terms “installed”, “connected”, “connected”, and “attached” 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements.
  • installed 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 direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements.
  • a and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone.
  • the character "/" in this application generally indicates that the associated objects before and after are in an "or" relationship.
  • the liquid media in the production process of batteries include electrolytes, NMP, DI water, etc.
  • the metal particles in the liquid medium will cause the battery cells to self-discharge. Therefore, in order to achieve better electrochemical performance, higher requirements are placed on the particles in the liquid medium.
  • the liquid medium needs to be filtered through a filtering device to intercept the metal particles.
  • a particle counter is generally used to test the number of particles in the liquid medium located upstream and downstream of the filter, and then the filtration efficiency of the filtration device is obtained by calculation.
  • this method can only test the filtration efficiency of the overall particles in the liquid medium, and cannot test the filtration efficiency of the filter element for metal particles in the liquid medium during the battery production process. Therefore, it is not suitable for the battery industry.
  • an embodiment of the present application provides a filter element testing system 100, which can obtain the original liquid of the liquid medium from the first sampling part 31 and the filtrate of the liquid medium from the second sampling part 32, so that the metal particles in the original liquid of the liquid medium and the metal particles in the filtrate of the liquid medium can be tested using a cleanliness testing device, and finally the filtration efficiency of the filter element 12 for the metal particles can be calculated, and the filtration efficiency of the filter element 12 for the metal particles used to filter the liquid medium in the battery production process can be accurately evaluated, so as to intercept unqualified incoming materials of the filter element 12 and reduce the product defect rate caused by failure of the filter element 12.
  • a filter element testing system 100 according to an embodiment of the present application is described below with reference to FIGS. 1 to 4 .
  • the filter element testing system 100 includes a filtering device 10 and a conveying device 21 .
  • the filter device 10 includes a filter housing 11 and a filter element 12.
  • the filter housing 11 has a filter chamber 101, a liquid inlet 102 and a liquid outlet 103.
  • the liquid inlet 102 and the liquid outlet 103 are both connected to the filter chamber 101.
  • the filter element 12 is arranged in the filter chamber 101.
  • the conveying device 21 is used to drive the liquid medium from the liquid inlet 102 into the filter chamber 101, so as to flow through the filter element 12 and be discharged from the liquid outlet 103.
  • the filter element testing system 100 further includes a first sampling portion 31 and a second sampling portion 32, wherein the first sampling portion 31 is connected to the liquid inlet 102, and the second sampling portion 32 is connected to the liquid outlet 103.
  • the first sampling portion 31 is located upstream of the filter device 10
  • the second sampling portion 32 is located downstream of the filter device 10.
  • the cleanliness testing device can test the metal particles in the liquid medium collected from the first sampling part 31 before filtration by the filter device 10, that is, the metal particles in the original liquid of the liquid medium, and can also collect the metal particles in the liquid medium after filtration by the filter device 10 from the second sampling part 32, that is, the metal particles in the filtrate of the liquid medium, and obtain the filtration efficiency of the filter element 12 for metal particles by calculation.
  • the operator can perform manual sampling.
  • the operator can use a container (such as a glass container or a plastic container) to collect the original liquid of the liquid medium in the first sampling part 31, and use another container (such as a glass container or a plastic container) to collect the filtrate of the liquid medium in the second sampling part 32.
  • the sampled liquid can be filtered using a filter membrane, and the obtained filter membrane is dried in an oven, and then the metal particles on the filter membrane are tested using a cleanliness test device.
  • machine sampling can also be performed.
  • the original liquid of the liquid medium can be obtained from the first sampling part 31 and the filtrate of the liquid medium can be obtained from the second sampling part 32, so that the cleanliness testing device can be used to test the metal particles in the original liquid of the liquid medium and the metal particles in the filtrate of the liquid medium, and finally the filtration efficiency of the filter element 12 for the metal particles can be calculated, the filtration efficiency of the filter element 12 for the liquid medium in the battery production process can be accurately evaluated, the filter element 12 can be intercepted for unqualified incoming products, and the product defect rate caused by the failure of the filter element 12 can be reduced.
  • the delivery device 21 is a delivery pump, which can provide power for the flow of liquid medium, wherein a pressure regulating valve is provided at the air inlet of the delivery pump, so that the flow rate of the liquid medium can be controlled by adjusting the air pressure value at the air inlet of the delivery pump.
  • a filter is provided upstream of the air inlet, which can intercept metal particles in the gas, ensure the cleanliness of the gas, prevent metal impurity particles that may exist in the gas from contaminating the original liquid of the liquid medium, increase the reliability of the blank sample, and thus improve the accuracy of the test results of metal particles in the original liquid of the liquid medium.
  • the surfaces of the conveying device 21 and the filter that are in contact with the liquid medium can be made of non-metallic materials, which can not only improve the corrosion resistance, but also avoid the metal impurity particles that may exist in the conveying device 21 and the filter from contaminating the original liquid of the liquid medium, increase the reliability of the blank sample, and thus improve the accuracy of the test results of the metal particles in the original liquid of the liquid medium.
  • the first sampling portion 31 has a first liquid passage cavity and a first liquid discharge port that can be opened and closed.
  • the first liquid passage cavity is suitable for being connected to the liquid inlet 102.
  • the first liquid discharge port When the first liquid discharge port is in an open state, the original liquid of the liquid medium flowing through the first liquid passage cavity can be discharged from the first liquid discharge port, thereby facilitating the collection of the original liquid of the liquid medium.
  • the first sampling portion 31 is made of a non-metallic material; or, the inner surface of the first liquid passage cavity has a non-metallic material layer.
  • the surface of the first sampling part 31 in contact with the raw liquid of the liquid medium is made of non-metallic material, which can not only prevent the raw liquid of the liquid medium from corroding the first sampling part 31, but also avoid the metal impurity particles that may exist in the first sampling part 31 from contaminating the raw liquid of the liquid medium, thereby increasing the reliability of the blank sample and thus improving the accuracy of the test results of the metal particles in the raw liquid of the liquid medium.
  • the first sampling portion 31 may be an on-off valve, for example, the first sampling portion 31 may be a ball valve, and the inner lining of the ball valve may be provided with a non-metallic material layer (for example, a PFA material layer).
  • a non-metallic material layer for example, a PFA material layer
  • the filter element testing system 100 further includes a first liquid storage container 41 , which is used to store the liquid medium before filtering by the filter element 12 , that is, the first liquid storage container 41 is used to store the original liquid of the liquid medium.
  • the first liquid storage container 41 is connected to the first liquid passage cavity, and the conveying device 21 is arranged between the first sampling part 31 and the first liquid storage container 41.
  • the conveying device 21 can convey the original liquid of the liquid medium in the first liquid storage container 41 to the filtering device 10. During this process, the original liquid of the liquid medium flows through the first liquid passage cavity, thereby facilitating the collection of the original liquid of the liquid medium from the first liquid discharge port.
  • the bottom of the first liquid storage container 41 has a first discharge outlet, and a first switch is provided at the first discharge outlet.
  • the first switch can open and close the first discharge outlet. When the first switch opens the first discharge outlet, the original liquid of the liquid medium in the first liquid storage container 41 can be discharged from the first discharge outlet.
  • the first liquid storage container 41 is made of non-metallic material; or, the inner surface of the first liquid storage container 41 has a non-metallic material layer.
  • the surface of the first liquid storage container 41 in contact with the original liquid of the liquid medium is made of non-metallic material, which can not only prevent the original liquid of the liquid medium from corroding the first liquid storage container 41, but also avoid the metal impurity particles that may exist in the first liquid storage container 41 from contaminating the original liquid of the liquid medium, thereby increasing the reliability of the blank sample and thus improving the accuracy of the test results of the metal particles in the original liquid of the liquid medium.
  • the first liquid storage container 41 is a plastic container.
  • the first liquid storage container 41 is made of a metal material (such as stainless steel, etc.), and the inner wall surface of the first liquid storage container 41 has a non-metal material layer (such as a plastic layer).
  • the non-metal material layer has a certain thickness, which is conducive to improving the corrosion resistance of the first liquid storage container 41 and making the non-metal material layer not easy to fall off.
  • the first liquid storage container 41 may be formed into a cylinder or other shapes.
  • the filter element testing system 100 further includes a first support frame 51 , which is disposed on a bearing surface, and the first liquid storage container 41 is supported on the first support frame 51 .
  • the first liquid storage container 41 can be stably placed on the bearing surface, and the first liquid storage container 41 can be prevented from interfering with the bearing surface.
  • the first support frame 51 can be a stainless steel support.
  • the distance between the bottom of the first liquid storage container 41 and the carrying surface is 410 mm-460 mm, which not only avoids interference between the first liquid storage container 41 and the carrying surface, but also facilitates liquid drainage.
  • bearing surface may be a fixed bearing surface, or may be the upper surface of the bottom plate 61 of the transfer device 60 described below.
  • the second sampling portion 32 has a second liquid passage cavity and a second liquid discharge port that can be opened and closed, and the second liquid passage cavity is suitable for communicating with the liquid outlet 103.
  • the filtrate of the liquid medium flowing through the second liquid passage cavity can be discharged from the second liquid discharge port, thereby facilitating the collection of the filtrate of the liquid medium.
  • the second sampling portion 32 is made of a non-metallic material; or, the inner surface of the second liquid passage cavity has a non-metallic material layer.
  • the surface of the second sampling portion 32 in contact with the filtrate of the liquid medium is made of non-metallic material, which can not only prevent the filtrate of the liquid medium from corroding the second sampling portion 32, but also avoid the metal impurity particles that may exist in the second sampling portion 32 from contaminating the filtrate of the liquid medium, thereby increasing the reliability of the blank sample and thus improving the accuracy of the test results of the metal particles in the filtrate of the liquid medium.
  • the second sampling portion 32 may be an on-off valve, such as a ball valve, and the inner lining of the ball valve may be provided with a non-metallic material layer (such as a PFA material layer).
  • a non-metallic material layer such as a PFA material layer
  • the filter element testing system 100 further includes a second liquid storage container 42 , and the second liquid storage container 42 is used to store the liquid medium filtered by the filter element 12 .
  • the second liquid storage container 42 is connected to the second liquid passage chamber, and the filtrate of the liquid medium obtained after filtering by the filter device 10 flows toward the second liquid storage container 42. During this process, the filtrate of the liquid medium flows through the second liquid passage chamber, thereby facilitating the collection of the filtrate of the liquid medium from the second liquid discharge port.
  • the second liquid storage container 42 has a second discharge outlet at the bottom, and a second switch is provided at the second discharge outlet.
  • the second switch can open and close the second discharge outlet. When the second switch opens the second discharge outlet, the filtrate of the liquid medium in the second liquid storage container 42 can be discharged from the second discharge outlet.
  • the second liquid storage container 42 is made of non-metallic material; or, the inner surface of the second liquid storage container 42 has a non-metallic material layer.
  • the surface of the second liquid storage container 42 in contact with the filtrate of the liquid medium is made of non-metallic material, which not only prevents the filtrate of the liquid medium from corroding the second liquid storage container 42, but also prevents the metal impurity particles that may exist in the second liquid storage container 42 from contaminating the filtrate of the liquid medium, thereby increasing the reliability of the blank sample and thus improving the accuracy of the test results of the metal particles in the filtrate of the liquid medium.
  • the second liquid storage container 42 is a plastic container.
  • the second liquid storage container 42 is made of a metal material (such as stainless steel, etc.), and the inner wall surface of the second liquid storage container 42 has a non-metal material layer (such as a plastic layer).
  • the non-metal material layer has a certain thickness, which is conducive to improving the corrosion resistance of the second liquid storage container 42 and making the non-metal material layer not easy to fall off.
  • the second liquid storage container 42 may be formed into a cylinder or other shapes.
  • the filter element testing system 100 further includes a second support frame 52 , which is disposed on the bearing surface, and the second liquid storage container 42 is supported on the second support frame 52 .
  • the second liquid storage container 42 can be stably placed on the bearing surface, and the second liquid storage container 42 can be prevented from interfering with the bearing surface.
  • the second support frame 52 can be a stainless steel support.
  • the distance between the bottom of the second liquid storage container 42 and the carrying surface is 410 mm-460 mm, which not only avoids interference between the second liquid storage container 42 and the carrying surface, but also facilitates liquid drainage.
  • a differential pressure gauge 23 is provided on the top of the filter device 10 , and the differential pressure gauge 23 can monitor the use status of the filter device 10 , for example, the differential pressure gauge 23 can monitor whether the filter device 10 is clogged or damaged.
  • the differential pressure gauge 23 is corrosion-resistant, and can be in contact with the liquid medium in the filter device 10 .
  • the actual differential pressure value of the filter device 10 can be directly read through the dial of the differential pressure gauge 23 .
  • a third support frame 53 is disposed at the bottom of the filter device 10 , and the third support frame 53 is disposed on the bearing surface, so as to support the filter device 10 and prevent the filter device 10 from interfering with the bearing surface.
  • the filter housing 11 is made of non-metallic material.
  • the wall of the filter cavity 101 has a non-metallic material layer.
  • the filter housing 11 is made of metal (such as 304 or 316 stainless steel, etc.), and the inner wall of the filter housing 11 is sprayed with a non-metallic coating, and the non-metallic coating can be selected from F40, etc.
  • the surface of the filter housing 11 in contact with the liquid medium is made of non-metallic material, which can not only prevent the liquid medium from corroding the filter housing 11, but also avoid the metal impurity particles that may exist in the filter housing 11 from contaminating the liquid medium, thereby increasing the reliability of the blank sample and improving the accuracy of the test results for the metal particles in the liquid medium.
  • the filtration efficiency of the filter element 12 for metal particles used to filter the liquid medium in the battery production process can be accurately evaluated, unqualified products incoming to the filter element 12 can be intercepted, and the product defect rate caused by the failure of the filter element 12 can be reduced.
  • a detachable adapter 13 is provided in the filter housing 11 , the adapter 13 is connected to at least one of the liquid inlet 102 and the liquid outlet 103 , and the filter element 12 is detachably provided on the adapter 13 .
  • the adapter 13 here can be replaced so as to adapt to different interfaces and different types of filter elements 12.
  • an opening is provided in the filter housing 11, and the opening can be adapted to one of the filter elements 12 to fix the filter element 12.
  • an adapter 13 adapted to the opening can be used, and then the filter element 12 can be installed on the adapter 13, so as to fix the filter element 12.
  • the adapter 13 can be used to realize the interface switching of different filter elements 12, so that the test system 100 can test different types of filter elements 12 with different interfaces, avoiding frequent replacement of the filter housing 11 of the corresponding filter device 10.
  • the inner wall of the filter housing 11 is relatively smooth, without unevenness, dead angles, welding slag, metal chips, burrs, or rust.
  • the adapter 13 is sealed with the filter housing 11 and the corresponding filter element 12 to prevent the original liquid and filtrate located upstream and downstream of the filter element from mixing and affecting the test results.
  • the filter housing 11 defines a filter cavity 101 to form a hollow structure of the filter housing 11.
  • the filter housing 11 has a liquid inlet 102 and a liquid outlet 103.
  • the liquid inlet 102 and the liquid outlet 103 are both connected to the filter cavity 101.
  • the liquid inlet 102 can be connected to the first sampling portion 31 through a first delivery pipe 241, and the liquid outlet 103 can be connected to the second sampling portion 32 through a second delivery pipe 242.
  • an opening is provided in the filter housing 11, the opening and the liquid inlet 102 are both connected to the filter chamber 101, the liquid outlet 103 is connected to the opening, one end of the first delivery pipe 241 is connected to the liquid inlet 102, so that the first delivery pipe 241 can be connected to the filter chamber 101, and one end of the second delivery pipe 242 is connected to the liquid outlet 103, so that the second delivery pipe 242 can be connected to the opening.
  • a detachable adapter 13 may be provided at the opening, and the filter element 12 may be detachably provided on the adapter 13.
  • at least one first sealing ring 141 is provided between the outer peripheral wall of the adapter 13 and the hole wall of the opening, thereby ensuring the sealing between the filter housing 11 and the adapter 13
  • at least one second sealing ring 142 is provided between the inner peripheral wall of the adapter 13 and the outer peripheral wall of the filter element 12, thereby ensuring the sealing between the adapter 13 and the filter element 12, and preventing the original liquid and the filtrate located upstream and downstream of the filter element 12 from mixing and affecting the accuracy of the test results.
  • the original liquid of the liquid medium can enter the filter cavity 101 from the liquid inlet 102 , be filtered by the filter element 12 to obtain the filtrate of the liquid medium, and then be discharged from the liquid outlet 103 .
  • the first delivery pipe 241 and the second delivery pipe 242 can be made of non-metallic materials, or the inner walls of the first delivery pipe 241 and the second delivery pipe 242 are provided with a non-metallic material layer, which can not only prevent the liquid medium from corroding the first delivery pipe 241 and the second delivery pipe 242, but also avoid the metal impurity particles that may exist in the first delivery pipe 241 and the second delivery pipe 242 from contaminating the liquid medium, increase the reliability of the blank sample, and thus improve the accuracy of the test results of the metal particles in the liquid medium.
  • the adapter 13 is made of non-metallic material.
  • the adapter 13 can be made of PP (polypropylene).
  • the filter housing 11 includes a base 111 and an upper housing 112, the upper housing 112 is connected above the base 111, and a filter chamber 101 is defined between the upper housing 112 and the base 111.
  • the filter housing 11 By configuring the filter housing 11 to include the base 111 and the upper housing 112, the filter element 12 in the filter chamber 101 can be easily replaced.
  • the upper housing 112 includes one.
  • the upper shell 112 includes a plurality of upper shells 112 , and the plurality of upper shells 112 can be selectively matched in sequence to adapt to filter elements 12 of different sizes.
  • a connecting structure can be used to quickly connect two adjacent upper shells 112 or the base 111 and the upper shell 112.
  • a filter device 10 of a certain size can be obtained.
  • a filter device 10 of another size can be obtained.
  • the threaded structure can be used to connect two adjacent upper shells 112 or the base 111 and the upper shell 112. As shown in FIG2, the clamp 15 can also be used to connect two adjacent upper shells 112 or the base 111 and the upper shell 112, which is easy to disassemble and convenient to replace the filter element 12.
  • the filter element testing system 100 further includes a transfer device 60 , and the filtering device 10 , the conveying device 21 , the sampling portion and the second sampling portion 32 are all disposed in the transfer device 60 .
  • the transfer device 60 the filtering device 10, the conveying device 21, the sampling part and the second sampling part 32 can be integrated together to facilitate transportation.
  • the operating device 60 can be a mobile trolley, and the transfer device 60 includes a bottom plate 61, and a plurality of running wheels 63 are provided below the bottom plate 61 to facilitate transfer, and the distance between the bottom plate 61 and the ground is 240 mm-260 mm to prevent obstacles on the ground from colliding with the bottom plate 61.
  • a handle 62 is provided at one end of the bottom plate 61 to facilitate the operator to push the transfer device 60.
  • the distance between the first sampling portion 31, the second sampling portion 32 and the bottom plate 61 may be 250 mm-300 mm, so as to facilitate sampling.
  • the base plate 61 may be made of stainless steel, thereby improving the structural strength of the base plate 61 .
  • the first support frame 51, the second support frame 52 and the third support frame 53 are all arranged on the upper surface of the base plate 61, and the material of the first support frame 51, the second support frame 52 and the third support frame 53 can also be stainless steel, and the first support frame 51, the second support frame 52 and the third support frame 53 can be connected to the base plate 61 by welding.

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  • Sampling And Sample Adjustment (AREA)

Abstract

L'invention concerne un système de test d'élément filtre (100), comprenant : un dispositif de filtre (10), le dispositif de filtre (10) comprenant une coque de filtre (11) et un élément filtre (12), la coque de filtre (11) étant pourvue d'une cavité de filtre (101), et l'élément filtre (12) étant disposé dans la cavité de filtre (101) ; un dispositif de distribution (21), utilisé pour entraîner un milieu liquide de sorte à entrer dans la cavité de filtre (101) à partir d'une entrée de liquide (102) pour s'écouler à travers l'élément filtre (12) et être évacué depuis une sortie de liquide (103) ; une première partie d'échantillonnage (31) ; une seconde partie d'échantillonnage (32) ; et un dispositif de test de propreté, utilisé pour tester des particules métalliques du milieu liquide obtenu à partir de la première partie d'échantillonnage (31) et de la seconde partie d'échantillonnage (32).
PCT/CN2022/128211 2022-10-28 2022-10-28 Système de test d'élément filtre WO2024087159A1 (fr)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001174374A (ja) * 1999-12-15 2001-06-29 Ebara Udylite Kk 溶液のサンプリングシステム
CN204116065U (zh) * 2014-09-25 2015-01-21 中国石油天然气股份有限公司 一种滤芯性能检测装置
US20160221842A1 (en) * 2013-09-23 2016-08-04 Eco Squared Solutions, Inc. System for separating contaminants from fluids
CN114509377A (zh) * 2022-02-22 2022-05-17 三门核电有限公司 动态的滤芯相容性测量方法及装置
CN216900131U (zh) * 2022-01-20 2022-07-05 迈博瑞新材料(嘉兴)有限公司 深层滤芯过滤精度测试装置
CN216955625U (zh) * 2022-01-18 2022-07-12 南京玻璃纤维研究设计院有限公司 滤芯服役能力测试***

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001174374A (ja) * 1999-12-15 2001-06-29 Ebara Udylite Kk 溶液のサンプリングシステム
US20160221842A1 (en) * 2013-09-23 2016-08-04 Eco Squared Solutions, Inc. System for separating contaminants from fluids
CN204116065U (zh) * 2014-09-25 2015-01-21 中国石油天然气股份有限公司 一种滤芯性能检测装置
CN216955625U (zh) * 2022-01-18 2022-07-12 南京玻璃纤维研究设计院有限公司 滤芯服役能力测试***
CN216900131U (zh) * 2022-01-20 2022-07-05 迈博瑞新材料(嘉兴)有限公司 深层滤芯过滤精度测试装置
CN114509377A (zh) * 2022-02-22 2022-05-17 三门核电有限公司 动态的滤芯相容性测量方法及装置

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