Cleaning water tank and cleanability extraction apparatus having the same

Abstract

The application discloses a cleaning water tank and a cleanliness extraction device with the same. The cleaning water tank comprises a tank body, wherein a cavity is formed in the tank body, the cavity is suitable for placing a to-be-cleaned part, a first protective layer is formed on the inner wall of the cavity, the tank body is a metal material part, and the first protective layer is a non-metal material part. According to the cleaning water tank, the first protective layer is arranged, the contact between metal and cleaning liquid can be effectively isolated, the risk of introduction of external metal particles can be effectively reduced, and the accuracy of cleanliness detection of the to-be-cleaned part can be effectively improved.

Description

Technical Field

[0001] This invention relates to the field of cleanliness extraction technology, and in particular to a cleaning tank and a cleanliness extraction device having the same. Background Technology

[0002] In existing technologies, engine components and the entire engine require regular spot checks for cleanliness. Cleanliness assessment is generally determined based on the weight or particle size of impurities. Currently, a cleanliness extraction device is typically used to extract metal particles. Specifically, the part to be tested is placed in a cleaning tank for cleaning to remove metal particles. However, cleaning tanks are generally made of stainless steel, and metal particles may be generated at various stages of their manufacturing process, which can affect subsequent test results. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention provides a cleaning water tank that can effectively reduce the risk of introducing external metal particles, thereby effectively improving the accuracy of cleanliness detection of the parts to be cleaned.

[0004] The present invention also proposes a cleanliness extraction device having the above-mentioned cleaning water tank.

[0005] According to a first aspect of the present invention, a cleaning water tank is used in a cleanliness extraction device. The cleaning water tank includes: a tank body, a cavity formed inside the tank body, the cavity being adapted to place a part to be cleaned, and a first protective layer formed on the inner wall of the cavity. The tank body is made of a metal material, and the first protective layer is made of a non-metallic material.

[0006] According to the cleaning tank of the present invention, by setting a first protective layer, the contact between metal and cleaning liquid can be effectively isolated, thereby effectively reducing the risk of introducing external metal particles, and thus effectively improving the accuracy of cleanliness detection of the parts to be cleaned.

[0007] According to some embodiments of the present invention, the cleaning water tank further includes: a support member arranged within the cavity and fixedly connected to the tank body, the support member being configured to support the item to be cleaned, the support member having a second protective layer, the support member being a metal component, and the second protective layer being a non-metallic component; and / or, a nozzle bracket disposed within the cavity and fixedly connected to the tank body, the nozzle bracket being configured to support a nozzle, the nozzle bracket having a third protective layer, the nozzle bracket being a metal component, and the third protective layer being a non-metallic component; and / or, a lighting device, the tank body having a mounting hole communicating with the cavity, the lighting device being disposed within the mounting hole for providing illumination to the cavity, the metal component of the lighting device exposed within the cavity having a fourth protective layer, the fourth protective layer being a non-metallic component.

[0008] According to some embodiments of the present invention, the cleaning water tank further includes: a sealant, the sealant being filled at the connection position between the support member and the tank body and at the connection position between the nozzle bracket and the tank body.

[0009] According to a second aspect of the present invention, a cleanliness extraction apparatus includes a cleaning water tank as described in the first aspect of the present invention, the tank body having an inlet and an outlet; and a filtration device, the filtration device including a filter clamp and a filter membrane, the filter clamp having an inlet and an outlet, the inlet being connected to the outlet, the filter clamp having a filtration channel internally defined, the filter membrane being clamped on the filter clamp and arranged within the filtration channel for filtering the washing liquid after cleaning the object to be cleaned, the filter clamp being a plastic component.

[0010] The cleanliness extraction apparatus according to the present invention, by providing a cleaning water tank according to the first aspect of the present invention and a filter device for plastic parts, can further reduce the risk of introducing metal foreign objects, thereby further improving the accuracy of cleanliness detection.

[0011] According to some embodiments of the present invention, the filter clamp includes: a top cover, on which the liquid inlet is formed; a base, which is disposed on one side of the top cover in a first direction, the liquid outlet is formed on the base, and the base is connected to the top cover; and a filter membrane holder, which is disposed between the top cover and the base, the filter membrane holder having the filter channel formed inside, the filter membrane holder including a plurality of sub-supports spaced apart along the first direction, the filter membrane being fixed between two adjacent sub-supports.

[0012] According to some embodiments of the present invention, the sub-support is formed in an annular shape, and a groove extending annularly along the circumference of the sub-support is formed on one side surface of the sub-support. The groove is open toward the filter channel, and the edge of the filter membrane fits into the groove.

[0013] According to some embodiments of the present invention, the filtration device further includes: a gasket disposed between the filter membrane and the groove in the first direction; and / or, a plurality of seals extending circumferentially around the sub-support in an annular shape, the plurality of seals respectively sealingly abutting between two adjacent sub-supports and between the filter membrane holder and the top cover and the base.

[0014] According to some embodiments of the present invention, two adjacent sub-supports are snap-fitted together.

[0015] According to some embodiments of the present invention, a fluid channel is formed inside the top cover. One end of the fluid channel is connected to the liquid inlet, and the other end is connected to the filter channel. In the first direction, in the direction of the top cover toward the filter membrane frame, the cross-sectional dimension of the other end of the fluid channel gradually increases, and the cross-sectional dimension of the filter channel toward the end of the fluid channel gradually decreases. In a projection plane perpendicular to the first direction, the projection of the inlet end of the filter channel completely covers the projection of the outlet end of the fluid channel.

[0016] According to some embodiments of the present invention, the cleanliness extraction device further includes: a solution tank, an inlet pipe, an inlet valve, and a capsule filter. One end of the inlet pipe is connected to the solution tank, and the other end is connected to the inlet. The inlet valve and the capsule filter are connected in series on the inlet pipe along the water flow direction.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the cleaning water tank according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the cleaning water tank according to an embodiment of the present invention from another angle; Figure 3 This is another schematic diagram of the cleaning water tank according to an embodiment of the present invention; Figure 4 This is another angled schematic diagram of the cleaning water tank according to an embodiment of the present invention; Figure 5 This is a schematic diagram of a filter clamp according to an embodiment of the present invention; Figure 6 This is a schematic diagram of a filter membrane holder according to an embodiment of the present invention; Figure 7 This is a partial process diagram of a cleanliness extraction device according to an embodiment of the present invention.

[0019] Figure label: 10. Cleaning water tank; 11. Tank body; 111. Cavity; 112. First tank body; 1121. Water inlet; 113. Second tank body; 12. Supporting components; 13. Lighting equipment; 20. Filter clamp; 21. Top cover; 211. Fluid channel; 2111. First flow channel; 2112. Second flow channel; 212. Protrusion; 213. Liquid inlet; 214. First positioning groove; 22. Base; 221. Liquid outlet; 23. Filter membrane holder; 231. Sub-support; 2311. Groove; 2312. First positioning protrusion; 2313. Second positioning protrusion; 2314. Second positioning groove; 232. Filter channel; 24. Seal; 31. Solution tank; 32. Inlet pipe; 33. Inlet valve; 34. Bladder filter; 35. Hydraulic pump; 36. Hydraulic pump pressure gauge; 37. First flow meter; 381. First filter; 382. Second filter; 391. Spray pressure gauge; 392. Cleaning pressure gauge; 41. Sprinkler pipe; 42. Sprinkler valve; 43. Sprinkler head; 50. Recycling pipe; 60. Ultrasonic cleaning tank; X, the first direction. Detailed Implementation

[0020] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0021] The following is for reference. Figures 1-7 A cleaning water tank 10 according to an embodiment of the first aspect of the present invention is described.

[0022] like Figures 1-7 As shown, the cleaning water tank 10 according to the first aspect of the present invention is used in a cleanliness extraction device.

[0023] Specifically, cleanliness extraction equipment is used to extract metal particles from vehicle parts to assist in the analysis and evaluation of the surface cleanliness of these products.

[0024] like Figures 1-4As shown, the cleaning water tank 10 includes: a tank body 11, a cavity 111 formed inside the tank body 11, the cavity 111 being suitable for placing the item to be cleaned, and a first protective layer formed on the inner wall of the cavity 111. The tank body 11 is made of metal, and the first protective layer is made of non-metallic material.

[0025] Specifically, the main body 11 is primarily used for cleaning the items to be cleaned, and its cavity needs to withstand the items to be cleaned as well as the impact of the water flow. Therefore, the body is made of metal to ensure the structural strength of the main body 11, thereby guaranteeing its support capacity and impact resistance.

[0026] The phrase "a first protective layer is formed on the inner wall of cavity 111" indicates that the inner wall of the box body 11 is coated with or wrapped with a protective layer to isolate the metal from the cleaning fluid. This effectively reduces the risk of introducing external metal particles and thus effectively improves the accuracy of the cleanliness test of the parts to be cleaned.

[0027] It should be noted that the first protective layer is a non-metallic material with certain corrosion resistance, mechanical strength, adhesion and abrasion resistance, such as polytetrafluoroethylene material, polyvinylidene fluoride material, fluororubber material, etc., and there are no restrictions here.

[0028] For example Figures 3-4 As shown, the main body 11 of the box includes: a first box 112 and a second box 113. The first box 112 is a square box and the second box 113 is a conical box. The second box 113 is connected to the lower side of the first box 112 so as to collect and export the cleaning fluid after cleaning.

[0029] Optionally, the second protective layer is made of polytetrafluoroethylene (PTFE). PTFE itself has stable chemical properties, does not react with the cleaning fluid or the parts to be cleaned, and does not produce metal particles. It also has certain lubricity and anti-stick properties. Therefore, using PTFE as the second protective layer can isolate the inner wall of the main body 11 from the cleaning fluid while also extending the service life of the second protective layer.

[0030] According to the cleaning tank 10 of the present invention, by providing a first protective layer, the contact between metal and cleaning liquid can be effectively isolated, thereby effectively reducing the risk of introducing external metal particles, and thus effectively improving the accuracy of cleanliness detection of the parts to be cleaned.

[0031] According to some embodiments of the present invention, such as Figure 1As shown, the cleaning tank 10 also includes a support member 12, which is arranged inside the cavity 111 and fixedly connected to the tank body 11. The support member 12 is configured to support the parts to be cleaned, and a second protective layer is provided on the support member 12. The support member 12 is made of metal, and the second protective layer is made of non-metallic material. Specifically, the support member 12, as a component for supporting the parts to be cleaned, is also a component that is directly rinsed by the water flow. Therefore, the support member 12 is made of metal to ensure its supporting performance. At the same time, the outer surface of the support member 12 is wrapped with a non-metallic material to prevent the generation of metal particles when the support member 12 is rinsed simultaneously, thereby reducing the impact on the cleaning and extraction results and improving the accuracy of cleanliness detection.

[0032] It should be noted that the metal parts can be made of stainless steel, carbon steel, or aluminum alloy, and there are no restrictions on this. The non-metallic parts can be made of PTFE, PVDF, EPDF, etc., and there are no restrictions on this either.

[0033] Optionally, the support member 12 may consist of multiple support rods, which are spaced apart within the cavity 111 to support the items to be cleaned. The two ends of each support rod are riveted to the main body 11 of the housing using fasteners.

[0034] According to some embodiments of the present invention, the cleaning water tank 10 further includes a nozzle support, which is disposed within the cavity 111 and fixedly connected to the tank body 11. The nozzle support is configured to support the nozzle 43, and a third protective layer is provided on the nozzle support. The nozzle support is made of metal, and the third protective layer is made of non-metallic material. Specifically, the nozzle support is generally disposed on the side wall or top wall of the cavity 111, which facilitates the spraying of cleaning fluid onto the parts to be cleaned. The nozzle support is mainly used to support the nozzle 43. Therefore, the fact that the nozzle support is made of metal ensures its support stability. At the same time, the non-metallic third protective layer on the nozzle support effectively reduces water splashing onto the nozzle support and washes away residual metal particles, thus minimizing the impact on the cleanliness detection accuracy.

[0035] Optionally, the nozzle bracket and the housing body 11 are fastened together by fasteners. The fasteners are also equipped with plastic protective sleeves to further prevent metal particles generated by wear from entering the filter membrane, thereby further reducing detection errors.

[0036] According to some embodiments of the present invention, such as Figure 2As shown, the cleaning tank 10 also includes a lighting device 13. The tank body 11 has a mounting hole communicating with the cavity 111. The lighting device 13 is disposed within the mounting hole and is used to provide illumination to the cavity 111. A fourth protective layer, made of non-metallic material, is provided on the metal parts of the lighting device 13 exposed within the cavity 111. The lighting device 13 primarily provides illumination to the cavity 111 to facilitate operator observation of the cleaning process within the cleaning tank. The fourth protective layer on the metal parts of the lighting device 13 exposed within the cavity 111 further reduces the risk of splashing water introducing metal particles from the lighting device 13.

[0037] It should be further noted that the first, second, third, and fourth protective layers can be formed by coating or by encapsulation on the surface of each component; there are no restrictions here.

[0038] According to some embodiments of the present invention, the cleaning tank 10 further includes: sealant, which is used to seal and fill the connection between the support member 12 and the tank body 11, and the connection between the nozzle bracket and the tank body 11. Specifically, in this embodiment, the sealant is used to fill the connection between the support member 12 and the tank body 11, and the connection between the nozzle bracket and the tank body 11, which can effectively cover the exposed metal in these areas, thereby further reducing the impact of metal structure wear on the cleaning and extraction results.

[0039] It should be noted that the sealant is an organic solvent-based anti-corrosion sealant, and the specific type can be selected according to the actual situation.

[0040] According to a second aspect of the present invention, a cleanliness extraction device includes a cleaning water tank 10 and a filtration device according to an embodiment of the first aspect of the present invention. The tank body 11 has an inlet 1121 and an outlet. The filtration device includes a filter clamp 20 and a filter membrane. The filter clamp 20 has an inlet 213 and an outlet 221. The inlet 213 is connected to the outlet. A filtration channel 232 is defined inside the filter clamp 20. The filter membrane is clamped on the filter clamp 20 and arranged in the filtration channel 232 for filtering the washing liquid after cleaning the parts to be cleaned. The filter clamp 20 is made of plastic.

[0041] Understandably, the washing liquid after cleaning inside the water tank 10 will enter the filter channel 232 in the filter device through the water outlet. Since the filter device is equipped with a filter membrane, the washing liquid after cleaning the parts to be cleaned can be filtered, and metal impurities will be left on the filter membrane, thereby completing the extraction of metal particles.

[0042] It should be noted that the filter clamp 20 is a plastic part, such as PP, PVC, PVDF, or other plastic materials; there are no restrictions here. Because the filter clamp 20 is made of plastic, it does not generate metal particles, thus reducing the risk of introducing metal foreign objects and further improving the accuracy of cleanliness testing.

[0043] According to the cleanliness extraction apparatus of the present invention, by providing a cleaning water tank 10 according to the first aspect of the present invention and a filter device for plastic parts, the risk of introducing metal foreign objects can be further reduced, thereby further improving the accuracy of cleanliness detection.

[0044] According to some embodiments of the present invention, such as Figure 5 As shown, the filter clamp 20 includes a top cover 21, a base 22, and a filter membrane holder 23. An inlet 213 is formed on the top cover 21. The base 22 is disposed on one side of the top cover 21 in the first direction X, and an outlet 221 is formed on the base 22, which is connected to the top cover 21. The filter membrane holder 23 is disposed between the top cover 21 and the base 22. A filtration channel 232 is formed inside the filter membrane holder 23. The filter membrane holder 23 includes multiple sub-supports 231 spaced apart along the first direction X, and the filter membrane is fixed between two adjacent sub-supports 231. This facilitates the disassembly of the filter clamp 20, allowing the filter membrane to be removed for inspection of extracted metal particles.

[0045] In addition, no filter membrane is placed between the filter membrane holder 23 and the top cover 21 and the base 22, which reduces the risk of metal particles escaping from the gap between the filter membrane and the top cover 21.

[0046] Specifically, the top cover 21 and the base 22 are mainly used to hold the filter membrane holder 23. For example, referring to the figure, the top cover 21 and the base 22 are connected by a spring clip. A limiting groove 2311 is formed on the base 22, and the filter membrane holder 23 is disposed within the limiting groove 2311 and held between the top cover 21 and the base 22. Furthermore, the top cover 21 is adjustable relative to the base 22 along the first direction X, which facilitates the placement and removal of the filter membrane holder 23.

[0047] According to some embodiments of the present invention, such as Figures 5-6 As shown, the sub-support 231 is formed in an annular shape, and a groove 2311 extending annularly along the circumference of the sub-support 231 is formed on one side surface of the sub-support 231. The groove 2311 is open towards the filter channel 232, and the edge of the filter membrane fits into the groove 2311. The structure of the groove 2311 is relatively simple, which can reduce the manufacturing cost of the filter fixture 20.

[0048] According to some embodiments of the present invention, the filtration device further includes a gasket, which is disposed between the filter membrane and the groove 2311 in a first direction X. The gasket can support the filter membrane and seal the gap between the filter membrane and the groove 2311, thereby reducing the probability of liquid entering the groove 2311, effectively reducing particulate matter loss, improving interception efficiency, and thus effectively improving the accuracy of cleanliness detection.

[0049] According to some embodiments of the present invention, such as Figures 5-6 As shown, the filtration device also includes multiple seals 24, which extend circumferentially around the sub-support 231 in an annular shape. The seals 24 respectively seal and abut between adjacent sub-supports 231 and between the filter membrane holder 23 and the top cover 21 and base 22. For example, the number of seals 24 can be two, three, or more. The seals 24 primarily seal and abut between adjacent sub-supports 231 and between the filter membrane holder 23 and the top cover 21 and base 22 to ensure the sealing of the filtration channel 232 in the filter membrane holder. This effectively prevents liquid leakage from the multiple sub-supports 231 and between the filter membrane holder 23 and the top cover 21 and base 22, thereby reducing the risk of metal particulate matter loss, improving interception efficiency, and ultimately enhancing the accuracy of cleanliness detection.

[0050] According to some embodiments of the present invention, two adjacent sub-supports 231 are snap-fit ​​connected. This snap-fit ​​connection structure is simple and easy to disassemble. Therefore, by setting two adjacent sub-supports 231 to be snap-fit ​​connected, the assembly steps of the filter clamp 20 can be simplified, and the convenience of installing and disassembling the filter membrane can be improved.

[0051] For example, one of two adjacent sub-supports 231 has a snap-fit ​​and the other has a slot, the snap-fit ​​being adapted to be disposed in the slot to fix the two adjacent sub-supports 231 together.

[0052] Optional, for example Figures 5-6 As shown, the sub-support 231 that contacts the top cover 21 among the multiple sub-supports 231 is the first sub-support 231. The first sub-support 231 has a first positioning protrusion 2312 on the side facing the top cover 21, and a matching first positioning groove 214 is formed on the top cover 21. The first positioning protrusion 2312 fits in the first positioning groove 214 to limit the installation position of the filter membrane holder 23, thereby improving the installation rate of the filter membrane holder.

[0053] Optional, for example Figures 5-6As shown, one of the two adjacent sub-supports 231 has a second positioning protrusion 2313 and the other has a second positioning groove 2314. The second positioning protrusion 2313 fits into the second positioning groove 2314 to limit the position between the two adjacent sub-supports 231, thereby further improving the installation accuracy and installation speed of the filter membrane holder 23.

[0054] According to some embodiments of the present invention, for example Figures 5-6 As shown, a fluid channel 211 is formed inside the top cover 21. One end of the fluid channel 211 is connected to the liquid inlet 213, and the other end is connected to the filter channel 232. In the first direction X, from the top cover 21 toward the filter membrane holder 23, the cross-sectional dimension of the other end of the fluid channel 211 gradually increases, while the cross-sectional dimension of the filter channel 232 toward the end of the fluid channel 211 gradually decreases. Furthermore, in the projection plane perpendicular to the first direction X, the projection of the inlet end of the filter channel 232 completely covers the projection of the outlet end of the fluid channel 211. It can be understood that in the first direction X, from the top cover 21 toward the filter membrane holder 23, the fluid channel 211 is formed into a frustum of a circle, and the end of the filter channel 232 connected to the fluid channel 211 is formed into an inverted frustum of a circle. That is to say, the fluid passing through the fluid channel 211 can be dispersed, while the liquid passing through the inlet end of the filter channel 232 can be collected. The flow path of the liquid after cleaning the parts to be cleaned is as follows: it enters the liquid inlet 213 of the top cover 21 through the outlet of the cleaning water tank 10, and then enters the filter channel 232 after passing through the fluid channel 211.

[0055] Therefore, by setting the cross-sectional size of the other end of the fluid channel 211 in the direction of the top cover 21 towards the filter membrane holder 23 in the first direction X, this application can effectively prevent the cleaning liquid from directly impacting the filter membrane in the filter channel 232, thereby ensuring the safety of the filter membrane in use; by setting the cross-sectional size of the filter channel 232 towards the fluid channel 211 to gradually decrease, the dispersed liquid can be gradually guided to concentrate it. In this way, the flow rate of the fluid can be further reduced, and metal particles can be effectively prevented from concentrating at the edge of the filter membrane, which is conducive to the recovery of metal particles.

[0056] "In the projection plane perpendicular to the first direction X, the projection of the inlet end of the filter channel 232 completely covers the projection of the outlet end of the fluid channel 211." This can be understood as follows: in the first direction X, the inlet end of the filter channel 232 and the outlet end of the fluid channel 211 are arranged opposite each other, and the size of the inlet end of the filter channel 232 is greater than or equal to the size of the outlet end of the fluid channel 211. This ensures that the fluid dispersed by the fluid channel 211 can all enter the filter channel 232.

[0057] For example Figure 5As shown, a cylindrical protrusion 212 is formed on the top cover 21, and a liquid inlet 213 is formed on the side of the protrusion 212 away from the base 22. A first flow channel 2111 is formed inside the protrusion 212, and a second flow channel 2112 is formed inside the top cover 21. The first flow channel 2111 and the second flow channel 2112 are connected to each other and together form a fluid channel 211. In the first direction X, from the top cover 21 toward the filter membrane holder 23, the cross-sectional size of the second flow channel 2112 gradually increases. This facilitates the dispersion of water flow and avoids direct impact of water flow on the filter membrane, thereby improving the safety of filter membrane use.

[0058] According to some embodiments of the present invention, such as Figure 7 As shown, the cleanliness extraction equipment also includes: a solution tank 31, an inlet pipe 32, an inlet valve 33, and a capsule filter 34. One end of the inlet pipe 32 is connected to the solution tank 31, and the other end is connected to the inlet 1121. The inlet valve 33 and the capsule filter 34 are connected in series on the inlet pipe 32 along the water flow direction. Specifically, the solution tank 31 is used to store the cleaning solution to supply the cleaning water tank 10; the inlet pipe 32 connects the solution tank 31 and the cleaning water tank 10 to supply the cleaning solution to the cleaning water tank 10; the inlet valve 33 is used to control the opening and closing of the inlet pipe 32 and the flow rate; the capsule filter 34 is used to filter impurities in the inlet water to ensure the cleanliness of the cleaning solution entering the cleaning water tank 10, thereby improving the accuracy of subsequent cleanliness detection. It should be noted that the capsule filter 34 is relatively small in size, which allows it to be installed in limited installation space, thus improving the adaptability of the capsule filter 34.

[0059] It should be noted that the water inlet pipe 32 can be made of plastic or metal with plastic lining; there are no restrictions here.

[0060] Optionally, there can be multiple capsule filters 34 connected in parallel, which can further improve the cleanliness of the cleaning fluid entering the cleaning water tank 10 and further improve the accuracy of subsequent cleanliness detection.

[0061] Optional, refer to Figure 7The cleanliness extraction equipment also includes: a hydraulic pump 35, a hydraulic pump pressure gauge 36, a first flow meter 37, a first filter 381, a spray pressure gauge 391, a second filter 382, ​​and a cleaning pressure gauge 392. The hydraulic pump pressure gauge 36, the first flow meter 37, the first filter 381, the spray pressure gauge 391, the second filter 382, ​​and the cleaning pressure gauge 392 are connected in series along the water flow direction on the inlet pipe 32 and are arranged between the solution tank 31 and the inlet valve 33. The hydraulic pump 35 is mainly used to pump the liquid in the solution tank 31 to the cleaning water tank 10. The first filter 381 and the second filter 382 are mainly used to filter the cleaning liquid in the inlet pipe 32 to improve the cleanliness of the cleaning liquid. The hydraulic pump pressure gauge 36 is mainly used to detect the pressure of the hydraulic pump 35. The spray pressure gauge 391 is mainly used to detect the pressure entering the spray pipe 41. The cleaning pressure gauge 392 is mainly used to detect the pressure entering the cleaning water tank 10.

[0062] The cleanliness extraction equipment also includes: a spray pipe 41, a spray valve 42, and a nozzle 43. One end of the spray pipe 41 is connected to the outlet of the second filter 382, ​​and the other end is connected to the nozzle 43 to provide water to the nozzle 43. The spray valve 42 is connected in series with the spray pipe 41 and arranged between the second filter 382 and the nozzle 43 to control the on / off state of the spray pipe 41 and / or the flow rate in the spray pipe 41.

[0063] It should be noted that the cleaning water tank 10 in the above embodiment can also be an ultrasonic cleaning tank 60, which is used to clean the parts to be cleaned by ultrasonic cleaning.

[0064] The cleanliness extraction equipment also includes a recovery pipe 50, one end of which is connected to the outlet of the filter device and the other end is connected to the solution tank 31. Multiple control valves and filters are also connected in series on the recovery pipe 50.

[0065] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0066] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0067] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0068] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0069] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cleaning tank (10) for cleaning a solvent extraction plant, characterized in that include: The box body (11) has a cavity (111) inside, the cavity (111) is suitable for placing the item to be cleaned, and a first protective layer is formed on the inner wall of the cavity (111). The box body (11) is made of metal, and the first protective layer is made of non-metallic material.

2. The cleaning water tank (10) according to claim 1, characterized in that, Also includes: A support member (12) is arranged within the cavity (111) and fixedly connected to the box body (11). The support member (12) is configured to support the item to be cleaned. A second protective layer is provided on the support member (12). The support member (12) is made of metal, and the second protective layer is made of non-metallic material; and / or, A nozzle support is disposed within the cavity (111) and fixedly connected to the housing body (11). The nozzle support is configured to support a nozzle (43). A third protective layer is provided on the nozzle support. The nozzle support is made of metal, and the third protective layer is made of non-metallic material; and / or, The lighting device (13) has a mounting hole on the main body (11) that communicates with the cavity (111). The lighting device (13) is located in the mounting hole and is used to provide lighting to the cavity (111). The metal material exposed in the cavity (111) of the lighting device (13) is provided with a fourth protective layer, which is a non-metallic material.

3. The cleaning water tank (10) according to claim 2, characterized in that, Also includes: The sealant is filled at the connection position between the support (12) and the box body (11) and at the connection position between the nozzle bracket and the box body (11).

4. A cleanliness extraction device, characterized in that, include: The cleaning water tank (10) according to any one of claims 1-3 has an inlet (1121) and an outlet on the tank body (11); A filtration device, comprising: a filter clamp (20) and a filter membrane, wherein the filter clamp (20) has an inlet (213) and an outlet (221) formed thereon, the inlet (213) being connected to the outlet, the filter clamp (20) having a filtration channel (232) internally defined therein, the filter membrane being clamped on the filter clamp (20) and arranged within the filtration channel (232) for filtering the washing liquid after cleaning the part to be cleaned, and the filter clamp (20) being a plastic part.

5. The cleanliness extraction device according to claim 4, characterized in that, The filter clamp (20) includes: Top cover (21), the liquid inlet (213) is formed on the top cover (21); A base (22) is arranged on one side of the top cover (21) in a first direction (X), the liquid outlet (221) is formed on the base (22), and the base (22) is connected to the top cover (21); A filter membrane holder (23) is arranged between the top cover (21) and the base (22). The filter membrane holder (23) forms the filter channel (232) inside. The filter membrane holder (23) includes a plurality of sub-supports (231) arranged at intervals along the first direction (X). The filter membrane is fixed between two adjacent sub-supports (231).

6. The cleanliness extraction apparatus according to claim 5, characterized in that, The sub-support (231) is formed in an annular shape, and a groove (2311) extending in an annular direction along the circumference of the sub-support (231) is formed on one side surface of the sub-support (231). The groove (2311) is open to the side facing the filter channel (232), and the edge of the filter membrane fits in the groove (2311).

7. The cleanliness extraction apparatus according to claim 6, characterized in that, The filtration device further includes: A gasket, disposed in the first direction (X) between the filter membrane and the groove (2311); and / or, Multiple seals (24) extend in a ring around the circumference of the sub-support (231), and the multiple seals (24) respectively seal against each other between two adjacent sub-supports (231) and between the filter membrane holder (23) and the top cover (21) and the base (22).

8. The cleanliness extraction apparatus according to claim 5, characterized in that, The two adjacent sub-supports (231) are snapped together.

9. The cleanliness extraction apparatus according to claim 5, characterized in that, A fluid channel (211) is formed inside the top cover (21). One end of the fluid channel (211) is connected to the liquid inlet (213), and the other end is connected to the filter channel (232). In the first direction (X) from which the top cover (21) faces the filter membrane holder (23), the cross-sectional size of the other end of the fluid channel (211) gradually increases, and the cross-sectional size of the filter channel (232) from which it faces the fluid channel (211) gradually decreases. In the projection plane perpendicular to the first direction (X), the projection of the inlet end of the filter channel (232) completely covers the projection of the outlet end of the fluid channel (211).

10. The cleanliness extraction apparatus according to claim 4, characterized in that, Also includes: The solution tank (31), water inlet pipe (32), water inlet valve (33) and capsule filter (34) are provided. One end of the water inlet pipe (32) is connected to the solution tank (31), and the other end is connected to the water inlet (1121). The water inlet valve (33) and the capsule filter (34) are connected in series on the water inlet pipe (32) along the water flow direction.

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