Filter element, filter and automatic replacement device

Abstract

The invention discloses a filter element, a filter and an automatic replacement device, and belongs to the technical field of filtering equipment.The filter element comprises a plurality of filter element assemblies which are consistent in structure and connected end to end, each filter element assembly comprises a filter element top cover, a first adjusting cavity is formed in the middle of the upper surface of each filter element top cover, and a sealing block is slidably connected into each first adjusting cavity in a sleeved mode; a mounting groove is formed in the position, located at the bottom of the first adjusting cavity, in the filter element top cover, a first spring is arranged in the mounting groove, the two ends of the first spring are fixedly connected with the sealing block and the groove bottom of the mounting groove correspondingly, and a plurality of first liquid guiding cavities which are evenly distributed in an annular array mode are formed in the position, located around the first adjusting cavity, in the filter element top cover; the upper end of the first liquid guide cavity is communicated with the upper portion of the cavity wall of the first adjusting cavity, the lower end of the first liquid guide cavity is communicated with the upper end of the supporting liquid guide cylinder, the filter element assembly at the bottom is taken away during replacement, a new filter element assembly is placed on the filter element assembly at the top, and therefore automatic replacement is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of filtering equipment, in particular to a filter element, a filter and an automatic replacement device. BACKGROUND

[0002] Ethyl acetate, also known as ethyl acetate, is an ester with functional group-COOR (double bond between carbon and oxygen), which can undergo common reactions of alcoholysis, aminolysis, ester exchange, reduction, etc. Ethyl acetate has a pungent odor when the concentration is high, is volatile, has excellent solubility, fast drying, and is widely used, is an important organic chemical raw material and industrial solvent, and purification of ethyl acetate often needs to be filtered to remove insoluble impurities.

[0003] The application file with publication number CN119281121A discloses a spliced filter element, a splicable filter element unit and a filter. The upper end cover and the lower end cover of the splicable filter element unit are respectively formed with first and second connecting structures, and the sealing cover is also respectively formed with first and second connecting structures at both ends. The spliced filter element is composed of a plurality of splicable filter element units and sealing covers spliced by the first and second connecting structures. The center is positioned and sealed by the first and second connecting rings during splicing, and is locked by the U-shaped handle and the annular pull ring.

[0004] According to the above-mentioned patent and prior art, it is found that in the prior art, the filter element of the filter often needs to be manually taken out of the tank and replaced by the staff, and it is difficult to achieve automatic replacement without people. In addition, due to the action of gravity, impurities are more likely to accumulate at the bottom, so that the bottom of the filter element is more likely to lose filtering capacity than the top, which often leads to the top of the filter element not being fully used, causing waste. In addition, the filter element of the filter often needs to be replaced after shutdown, and it is difficult to achieve replacement without shutdown. SUMMARY

[0005] The present application aims to solve the above-mentioned problems and deficiencies, and provides a filter element, a filter and an automatic replacement device, which improves the overall work efficiency.

[0006] The present application at least solves one of the following technical problems: (1) In the prior art, the filter element of the filter often needs to be manually taken out of the tank and replaced by the staff, and it is difficult to achieve automatic replacement without people; (2) In the prior art, due to the action of gravity, impurities are more likely to accumulate at the bottom, so that the bottom of the filter element is more likely to lose filtering capacity than the top, which often leads to the top of the filter element not being fully used, causing waste; (3) In the prior art, the filter element of the filter often needs to be replaced after shutdown, and it is difficult to achieve replacement without shutdown.

[0007] The object of the present application can be achieved by the following technical solutions: a filter element, comprising a plurality of filter element assemblies which are consistent in structure and connected end to end, the filter element assembly comprising a filter element top cover, a first adjusting cavity being formed in the middle of the upper surface of the filter element top cover, a sealing block being slidably sleeved in the first adjusting cavity, an installation groove being formed in the filter element top cover and located at the bottom of the first adjusting cavity, a first spring being arranged in the installation groove, the two ends of the first spring being fixedly connected with the sealing block and the bottom of the installation groove respectively, a plurality of first liquid guide cavities being evenly distributed in the form of annular array being formed in the filter element top cover and located around the first adjusting cavity, the upper end of the first liquid guide cavity being in communication with the upper part of the cavity wall of the first adjusting cavity, and the lower end of the first liquid guide cavity being in communication with the upper end of a support liquid guide cylinder.

[0008] Preferably, a first limiting groove is formed in the cavity wall of the first adjusting cavity, a first limiting block is slidably connected in the first limiting groove, and the first limiting block is fixedly connected with the side wall of the sealing block.

[0009] Preferably, a support liquid guide cylinder is sealingly and fixedly connected with the middle of the lower surface of the filter element top cover, a liquid discharge regulator is sealingly and fixedly connected with the lower end of the support liquid guide cylinder, the liquid discharge regulator comprises an adjusting cylinder, a filter element bottom plate is sealingly and fixedly sleeved with the outer periphery of the lower end of the adjusting cylinder, a filter element cloth sleeve is arranged around the outer periphery of the support liquid guide cylinder, and a plurality of through grooves are evenly distributed in the form of annular array and formed in the cylinder wall of the support liquid guide cylinder.

[0010] Preferably, a first liquid guide block is sealingly sleeved with the middle of the adjusting cylinder, a second adjusting cavity is formed in the middle of the lower end surface of the adjusting cylinder and directed inwardly of the cylinder wall of the adjusting cylinder, a sealing cylinder is slidably sleeved in the second adjusting cavity, a second limiting groove is formed in the cavity wall of the second adjusting cavity, a second limiting block is slidably connected in the second limiting groove, the second limiting block is fixedly connected with the side wall of the sealing cylinder, a second spring is arranged in the second adjusting cavity, the two ends of the second spring are fixedly connected with the sealing cylinder and the adjusting cylinder respectively, a second liquid guide cavity is formed in the middle of the first liquid guide block, a second liquid guide block is fixedly connected with the lower end of the first liquid guide block, a third liquid guide cavity is formed in the second liquid guide block, the second liquid guide cavity is in communication with the support liquid guide cylinder and the third liquid guide cavity respectively, the lower end of the third liquid guide cavity is located at the surrounding side wall of the second liquid guide block, and the lower part of the sealing cylinder is sealingly and slidably sleeved with the outer periphery of the second liquid guide block.

[0011] A filter, comprising a filter assembly, the filter assembly comprising a filter tank, a liquid supply tank, a liquid collecting tank and an air charging tank being respectively arranged on one side of the filter tank, the top of the filter tank being in communication with the liquid supply tank through a liquid supply pipe, the end of the liquid supply pipe located in the filter tank being vertically downwardly arranged, and the end of the liquid supply pipe being also provided with a liquid discharge regulator through a communication block, a support push rod being sealingly and fixedly arranged through the bottom of the filter tank, the support push rod being coaxial with the communication block, and a support frame being arranged on the top of the movable end of the support push rod.

[0012] Preferably, the bottom seal of the filter tank is provided with a first liquid outlet pipe and a second liquid outlet pipe, the bottom seal of the first liquid outlet pipe is provided with an atmosphere pipe, the liquid product in the filter tank is collected by the liquid collection tank through the first liquid outlet pipe and the second liquid outlet pipe, the filter tank is filled with protective atmosphere by the atmosphere pipe, the inner side wall of the middle part of the filter tank is fixedly sleeved with an annular sealing frame, the annular sealing frame is rotatably sleeved with a transmission gear ring, a plurality of support swing rods are evenly distributed in an annular array and are hinged to the inner peripheral edge of the annular sealing frame, one end of the support swing rod is engraved with a tooth pattern meshing with the transmission gear ring, a regulating motor is installed on the inner wall of the filter tank and above the annular sealing frame, a regulating gear is installed at the lower end of the rotating shaft of the regulating motor, and the regulating gear is in meshing transmission with the transmission gear ring.

[0013] Preferably, the inner peripheral edge of the sealing ring is installed with a sealing air bag ring, the sealing ring is embedded with an inflation pipeline, the sealing air bag ring is in communication with the inflation tank through the inflation pipeline, the upper end of the first liquid outlet pipe is sealingly penetrated through the sealing ring, and the first liquid outlet pipe, the second liquid outlet pipe and the atmosphere pipe are all provided with valves for opening and closing.

[0014] An automatic replacement device for filter cartridges of a filter, used for replacing the filter cartridges in the filter, comprises an upper cartridge mechanism and a lower cartridge mechanism, the upper cartridge mechanism comprises an upper cartridge box, one end of the upper cartridge box is in communication with the upper part of the side surface of the filter tank, the upper cartridge box is controlled by a first shutter to open and close the communication process with the filter tank, a replacement box is installed at the lower part of the upper cartridge box, the upper cartridge box is in communication with the replacement box through a communication groove, the upper cartridge box controls the opening and closing of the communication groove through a second shutter, a first sliding table is installed at the inner side top of the upper cartridge box, a vertical sliding table is installed at the sliding end of the first sliding table, a first clamping sliding table is installed at the sliding end of the vertical sliding table, and a first clamping frame is installed at both sliding ends of the first clamping sliding table.

[0015] Preferably, the inner side middle part of the replacement box is installed with a partition plate, the side of the partition plate close to the first shutter is installed with a lifting sliding table, the lifting sliding table is installed with a lifting support at the sliding end, the side wall of the replacement box close to the lifting support is installed with a sealing box door, a circulating fan is arranged in the replacement box and at the bottom of the other side of the partition plate, the air inlet of the circulating fan is located at the top and the air outlet is sealingly penetrated through the partition plate, a dust filter net is arranged in the replacement box and above the dust filter net, and a dust filter cavity is arranged in the replacement box and above the dust filter net.

[0016] Preferably, the lower core mechanism comprises a lower core box, one end of the lower core box is communicated with the lower side of the filter tank, the lower core box is opened and closed through the third gate plate to control the communication with the filter tank, the inner side top of the lower core box is provided with a second sliding table, the sliding end of the second sliding table is provided with a supporting sliding frame, the supporting sliding frame is provided with a second clamping sliding table, the two sliding ends of the second clamping sliding table are provided with a second clamping frame, the bottom of the lower core box and below the second clamping frame are provided with a core outlet, and the core outlet is opened and closed through the fourth gate plate.

[0017] The beneficial effects of the present application are as follows: (1) During work, a plurality of filter core assemblies are arranged in a head-to-tail stacked structure between the communication block and the supporting frame in the filter tank, the communication block is communicated with the filter core assembly at the top through the liquid discharge regulator, the supporting frame supports the filter core assembly at the bottom so that the communication between the liquid supply pipe and each filter core assembly is kept sealed, then the filtered liquid is input through the liquid supply pipe, filtered through each filter core assembly, and during replacement, the filter core assembly at the bottom is removed, and a new filter core assembly is placed on the filter core assembly at the top, so that automatic replacement is realized; (2) During replacement, the filter core assemblies other than the filter core assembly at the bottom are supported, and the seal between the second last filter core assembly and the inner side wall of the filter tank is removed, then the supporting push rod is retracted, the filter core assembly at the bottom is separated from the second last filter core assembly, the second last filter core assembly automatically seals the connecting port, then the liquid around the filter core assembly at the bottom is emptied and filled with a protective atmosphere, then the third gate plate is opened, the second clamping frame is moved into the filter tank through the second sliding table, the second clamping frame is folded through the second clamping sliding table and clamps the filter core assembly, then the filter core assembly is moved into the lower core box through the second sliding table and the third gate plate is closed, then the supporting push rod is extended to support each filter core assembly, then the seal between the second last filter core assembly and the inner side wall of the filter tank is removed, the liquid supply pipe is paused, and each filter core assembly is moved downward as a whole, so that a height difference of at least the height of the filter core assembly is generated between the filter core assembly at the top and the liquid discharge regulator of the communication block, then the first gate plate is opened, the first sliding table moves the filter core assembly into the filter tank, then the first gate plate is reset and closed, then the supporting push rod is pushed again to maintain the mutual sealing of the communication, and the liquid supply of the liquid supply pipe is started again, so that the filter core assembly is replaced accurately, quickly, orderly and without pollution. (3) when replacing, supporting the filter core assembly other than the bottom filter core assembly, sealing between the penultimate filter core assembly and the inner side wall of the filter tank, then supporting the push rod to retract, separating the bottom filter core assembly from the penultimate filter core assembly, the penultimate filter core assembly automatically sealing the connecting port, then emptying the liquid around the bottom filter core assembly and filling the protective atmosphere, taking away the bottom filter core assembly, then supporting the push rod to extend, supporting each filter core assembly, then unsealing between the penultimate filter core assembly and the inner side wall of the filter tank, stopping the liquid supply pipe from supplying liquid, and moving the filter core assemblies downward as a whole, so that the top filter core assembly and the liquid discharge regulator of the communication block have a height difference of at least the height of the filter core assembly, then placing a new filter core assembly on the top filter core assembly, then pushing the push rod again to maintain the mutual sealing of the communication, and starting the liquid supply of the liquid supply pipe again, through the top structure of the liquid inlet end, the filtered pure liquid is located outside the filter core assembly and can be continuously supplied, and the unfiltered liquid is left in each filter core assembly until it is filtered, so that the output of the product is not delayed, and the replacement is completed during the output process. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to facilitate the understanding of those skilled in the art, the present application will be further described below with reference to the accompanying drawings.

[0019] Figure 1 is the internal structure of the present application; Figure 2 is the internal structure of the filter core assembly of the present application; Figure 3 is the internal structure of the filter core assembly of the present application; Figure 4 is the internal structure of the filter core assembly of the present application; Figure 5 is the internal structure of the filter core assembly of the present application; Figure 6 is the overall structure of the support swing lever when working; Figure 7 is the overall structure of the support swing lever when retracted; Figure 8 is the overall structure of the sealing ring of the present application; As shown in the figure: 100, filter assembly; 101, filter tank; 102, liquid supply pipe; 103, liquid supply tank; 104, communication block; 105, support push rod; 106, support frame; 107, first liquid outlet pipe; 108, second liquid outlet pipe; 109, liquid collecting tank; 110, atmosphere pipe; 111, inflation tank; 112, annular sealing frame; 113, transmission gear ring; 114, support swing rod; 115, control motor; 116, control gear; 117, sealing ring; 118, sealing airbag ring; 200, filter element assembly; 201, filter element top cover; 202, support liquid guide cylinder; 203, filter element bottom plate; 204, filter element cloth cover; 205, first adjusting cavity; 206, mounting groove; 207, first limiting groove; 208, first spring; 209, sealing block; 210, first limiting block; 211, first liquid guide cavity; 212, support groove; 213, adjusting cylinder; 214, first liquid guide block; 215, through groove; 216, second adjusting cavity; 217, sealing cylinder; 218, second limiting groove; 219, second limiting block; 220, second spring; 221, second liquid guide cavity; 222, second liquid guide block; 223, third liquid guide cavity; 300, core lifting mechanism; 301, core lifting box; 302, first shutter; 303, replacement box; 304, communication groove; 305, second shutter; 306, first sliding table; 307, vertical sliding table; 308, first clamping sliding table; 309, first clamping frame; 310, partition plate; 311, lifting sliding table; 312, lifting frame; 313, sealing box door; 314, circulating fan; 315, dust filter net; 316, dust filter cavity; 400, core lowering mechanism; 401, core lowering box; 402, second sliding table; 403, support sliding frame; 404, second clamping sliding table; 405, second clamping frame; 406, third shutter; 407, core outlet; 408, fourth shutter. DETAILED DESCRIPTION

[0020] The specific embodiments of the present application are described in detail below, but it should be understood that the scope of protection of the present application is not limited by the specific embodiments.

[0021] Please refer to Figures 1-8 As shown in the figure: a filter element, comprising a plurality of filter element assemblies 200 which are consistent in structure and connected end to end, the filter element assembly 200 comprising a filter element top cover 201, the lower surface of the filter element top cover 201 is fixedly connected with a support liquid guide cylinder 202 in the middle, the lower end of the support liquid guide cylinder 202 is fixedly connected with a liquid discharge regulator, the liquid discharge regulator comprises an adjusting cylinder 213, the lower end of the adjusting cylinder 213 is fixedly connected with a filter element bottom plate 203 outside the periphery, the support liquid guide cylinder 202 is provided with a filter element cloth cover 204 around the periphery, when the filter product is ethyl acetate, the material of the filter element cloth cover 204 is HDPE, a plurality of through grooves 215 are arranged on the cylinder wall of the support liquid guide cylinder 202 in a ring array and uniformly distributed; The upper surface of the filter core top cover 201 is provided with a first adjusting cavity 205 in the middle, a sealing block 209 is sleeved and slid in the first adjusting cavity 205, an installation groove 206 is formed in the first adjusting cavity 205, a first spring 208 is arranged in the installation groove 206, the two ends of the first spring 208 are fixedly connected with the sealing block 209 and the bottom of the installation groove 206 respectively, a first limiting groove 207 is formed in the cavity wall of the first adjusting cavity 205, a first limiting block 210 is slidably connected in the first limiting groove 207, the first limiting block 210 is fixedly connected with the side wall of the sealing block 209, a plurality of first liquid guide cavities 211 are formed in the filter core top cover 201 and are evenly distributed in the form of annular array around the first adjusting cavity 205, the upper end of the first liquid guide cavity 211 is communicated with the upper part of the cavity wall of the first adjusting cavity 205, and the lower end of the first liquid guide cavity 211 is communicated with the upper end of the support liquid guide cylinder 202; a support groove 212 is formed in the middle of the outer periphery of the filter core top cover 201; When the embodiment works, the filtered liquid is introduced into the support liquid guide cylinder 202 through the upper part of the first adjusting cavity 205 and the first liquid guide cavity 211, and then is guided to the surrounding filter core cloth cover 204 through the through groove 215 to complete the filtering step rapidly, whether the filtered liquid is introduced is adjusted by the sealing of the sealing block 209 to the port of the first adjusting cavity 205, the sealing block 209 is pushed and supported by the first spring 208 by using the elastic force of the first spring 208, so as to automatically seal, and the sealing block 209 is leveled with the upper surface of the filter core top cover 201 when sealing by the limiting sliding of the first limiting block 210 in the first limiting groove 207.

[0022] The middle part of the adjusting cylinder 213 is sleeved with a first liquid guide block 214, the middle part of the lower end face of the adjusting cylinder 213 is provided with a second adjusting cavity 216 in the direction of the cylinder wall of the adjusting cylinder 213, a sealing cylinder 217 is sleeved and slid in the second adjusting cavity 216, a second limiting groove 218 is formed in the cavity wall of the second adjusting cavity 216, a second limiting block 219 is slidably connected in the second limiting groove 218, the second limiting block 219 is fixedly connected with the side wall of the sealing cylinder 217, a second spring 220 is arranged in the second adjusting cavity 216, the two ends of the second spring 220 are fixedly connected with the sealing cylinder 217 and the adjusting cylinder 213 respectively, a second liquid guide cavity 221 is formed in the middle part of the first liquid guide block 214, a second liquid guide block 222 is fixedly connected with the lower end of the first liquid guide block 214, a third liquid guide cavity 223 is formed in the second liquid guide block 222, the second liquid guide cavity 221 is communicated with the support liquid guide cylinder 202 and the third liquid guide cavity 223 respectively, the lower end of the third liquid guide cavity 223 is located at the surrounding side wall of the second liquid guide block 222, and the lower part of the sealing cylinder 217 is sealingly and slidably sleeved on the outer periphery of the second liquid guide block 222; In the working process of the embodiment, the filtered liquid is divided into two parts, one part of the filtered liquid is filtered by the filter cloth cover 204 of the filter core assembly 200, and the other part of the filtered liquid is discharged through the second liquid guide cavity 221 and the third liquid guide cavity 223, and the series structure is formed by stacking a plurality of filter core assemblies 200 in communication, so that the filter device using the filter core can adjust the number of filter cores according to the flow rate of the filtered liquid per unit time and the required pressure for filtering, obtain the best filtering efficiency, improve the replacement speed of the filter core, and maintain the continuous output of the filtered product during replacement.

[0023] A filter includes a filter core, and further includes a filter assembly 100, the filter assembly 100 including a filter tank 101, the filter tank 101 being provided with a liquid supply tank 103, a liquid collecting tank 109 and an air charging tank 111 on one side, respectively, the top of the filter tank 101 being connected in communication with the liquid supply tank 103 through a liquid supply pipe 102, the end of the liquid supply pipe 102 located in the filter tank 101 being arranged vertically downward, and the end of the liquid supply pipe 102 being also provided with a liquid discharge regulator through a communication block 104, the bottom of the filter tank 101 being fixedly provided with a support push rod 105 penetrating through the bottom, the support push rod 105 being coaxial with the communication block 104, and a support frame 106 being mounted on the top movable end of the support push rod 105; In operation, several filter core assemblies 200 are arranged in a head-to-tail stacked structure between the communicating block 104 and the support frame 106 in the filter tank 101, the communicating block 104 is connected to the top filter core assembly 200 through the liquid discharge regulator, the support frame 106 supports the bottom filter core assembly 200 so that the liquid supply pipe 102 and the filter core assemblies 200 are sealed from each other, then the filtered liquid is input through the liquid supply pipe 102 and filtered through the filter core assemblies 200, impurities are concentrated in the bottom filter core assembly 200 due to gravity and other reasons, in replacement, the sequence from top to bottom is the positive sequence, other filter core assemblies 200 are supported except the bottom filter core assembly 200, and the seal between the second last filter core assembly 200 and the inner side wall of the filter tank 101 is removed, then the support push rod 105 is retracted, the bottom filter core assembly 200 is separated from the second last filter core assembly 200, the second last filter core assembly 200 automatically seals the connecting port, then the liquid around the bottom filter core assembly 200 is emptied and filled with a protective atmosphere, the bottom filter core assembly 200 is removed, then the support push rod 105 is extended to support the filter core assemblies 200, the seal between the second last filter core assembly 200 and the inner side wall of the filter tank 101 is removed, the liquid supply of the liquid supply pipe 102 is stopped, and the filter core assemblies 200 are collectively lowered, so that a height difference of at least the height of the filter core assembly 200 is generated between the top filter core assembly 200 and the liquid discharge regulator of the communicating block 104, then a new filter core assembly 200 is placed on the top filter core assembly 200, then the support push rod 105 is pushed again to maintain the mutual sealing of the communicating ports, and the liquid supply of the liquid supply pipe 102 is started again, the filtered pure liquid is located outside the filter core assemblies 200 and can be continuously supplied due to the structure of the liquid inlet end being located at the top, and the unfiltered liquid remains in the filter core assemblies 200 until it is filtered, so that the output of the product is not delayed, and the replacement is completed during the output process.

[0024] The bottom of the filter tank 101 is sealed with a first liquid outlet pipe 107 and a second liquid outlet pipe 108, the bottom of the first liquid outlet pipe 107 is sealed with an atmosphere pipe 110, the liquid product in the filter tank 101 is collected by the liquid collecting tank 109 through the first liquid outlet pipe 107 and the second liquid outlet pipe 108, the filter tank 101 is filled with a protective atmosphere by the air tank 111 through the atmosphere pipe 110, the middle inner wall of the filter tank 101 is fixedly sleeved with an annular sealing frame 112, the annular sealing frame 112 is rotatably sleeved with a transmission gear ring 113, a plurality of support swing rods 114 are evenly distributed in an annular array and are hinged to the inner periphery edge of the annular sealing frame 112, and one end of the support swing rod 114 is engraved with a tooth pattern meshing with the transmission gear ring 113, a regulating motor 115 is installed on the inner wall of the filter tank 101 and above the annular sealing frame 112, a regulating gear 116 is installed on the lower end of the rotating shaft of the regulating motor 115, and the regulating gear 116 is in meshing transmission with the transmission gear ring 113. When the embodiment works, each support swing rod 114 supports the filter core assembly 200 by being parallel to the radius of the corresponding annular sealing frame 112, the regulating motor 115 rotates the regulating gear 116, drives the transmission gear ring 113 to drive each support swing rod 114 to swing synchronously, so that each support swing rod 114 is arranged in a radial structure at the same time, and stable support is maintained, when the support is no longer needed, the support swing rods 114 are synchronized to approach and adhere to the annular sealing frame 112, the filter core assembly 200 is convenient to pass through, so that stable support is realized in limited space.

[0025] The middle inner wall of the filter tank 101 and below the annular sealing frame 112 is fixedly sleeved with a sealing ring 117, the inner periphery of the sealing ring 117 is installed with a sealing air bag ring 118, the sealing ring 117 is embedded with an air filling pipeline, the sealing air bag ring 118 is communicated with the air tank 111 through the air filling pipeline, the upper end of the first liquid outlet pipe 107 is sealed and penetrates the sealing ring 117, the first liquid outlet pipe 107, the second liquid outlet pipe 108 and the atmosphere pipe 110 are all provided with valves for opening and closing; In the working process of the embodiment, the bottom filter element assembly 200 is replaced by cooperating the sealing air bag ring 118 with the supporting swing lever 114. During the swinging of the supporting swing lever 114, the sealing air bag ring 118 is in abutment and sealing with the second last filter element assembly 200, and the same protective atmosphere is used to avoid pollution. Then, the first liquid outlet pipe 107 and the atmosphere pipe 110 are started to empty and fill the protective atmosphere around the bottom filter element assembly 200, and the air pressure of the protective atmosphere is used to assist in emptying to facilitate subsequent replacement. After emptying, the second liquid outlet pipe 108 is closed, and the bottom filter element assembly 200 is removed. After removal, the second liquid outlet pipe 108 is opened again to pump air out of the sealing air bag ring 118, which is no longer sealed and supported. At the same time, the first liquid outlet pipe 107 is closed, and the air tank 111 is continuously filled with protective atmosphere to maintain an interference atmosphere at the top of the filter tank 101 before the new filter element assembly 200 is connected with the liquid supply pipe 102, thereby avoiding pollution from the external environment. When the replacement is completed, the protective atmosphere at the top of the filter tank 101 is continuously discharged as the water level rises until it is completely filled with liquid.

[0026] An automatic replacement device for filter elements and filters is used to replace filter elements in filters. The device includes an upper element mechanism 300 and a lower element mechanism 400. The upper element mechanism 300 includes an upper element box 301, one end of which is in communication with the upper side of the filter tank 101. The upper element box 301 controls the opening and closing of the communication process with the filter tank 101 through a first shutter 302. A replacement box 303 is installed at the lower part of the upper element box 301. The upper element box 301 is in communication with the replacement box 303 through a communication groove 304. The communication groove 304 is controlled by the second shutter 305. A first sliding table 306 is installed on the inner top of the upper element box 301. A vertical sliding table 307 is installed on the sliding end of the first sliding table 306. A first clamping sliding table 308 is installed on the sliding end of the vertical sliding table 307. Two first clamping frames 309 are installed on the sliding ends of the first clamping sliding table 308. A partition plate 310 is installed on the inner middle part of the replacement box 303. A lifting sliding table 311 is installed on the side of the partition plate 310 close to the first shutter 302. A lifting support 312 is installed on the sliding end of the lifting sliding table 311. A sealing box door 313 is installed on the side wall of the replacement box 303 close to the lifting support 312. A circulating fan 314 is arranged in the replacement box 303 on the other side of the bottom of the partition plate 310. The air inlet of the circulating fan 314 is located at the top, and the air outlet is sealed and penetrates the partition plate 310. A dust filter net 315 is arranged in the replacement box 303 above the circulating fan 314. A dust filter cavity 316 is arranged in the replacement box 303 above the dust filter net 315. When the embodiment works, the upper core box 301 and the replacement box 303 are filled with protective atmosphere and are in the state of excess pressure. After opening the sealed box door 313, the clean filter core assembly 200 is placed on the lifting support 312. Then the sealed box door 313 is closed, and the dust in the atmosphere is continuously bound on the dust filter screen 315 by the circulating fan 314 and the dust filter screen 315. At the same time of filtering dust, the second shutter 305 is opened, the lifting slide 311 lifts the filter core assembly 200 to pass through the communication groove 304 and is put into the upper core box 301. The vertical slide 307 adjusts the height of the first clamping frame 309. The first clamping slide 308 folds the first clamping frame 309, and the filter core assembly 200 is completely moved into the upper core box 301. Then the second shutter 305 is closed, the new filter core assembly 200 is loaded into the replacement box 303 again, the protective atmosphere is refilled in the replacement box 303 and the dust is filtered again. The first shutter 302 is opened, the first slide 306 moves the filter core assembly 200 into the filter tank 101. Then the first shutter 302 is reset and closed, so that the filter core assembly 200 is accurately, quickly, orderly and pollution-free replaced.

[0027] The lower core mechanism 400 includes a lower core box 401. One end of the lower core box 401 is connected with the lower side of the filter tank 101. The lower core box 401 is controlled to open and close the connection with the filter tank 101 by the third shutter 406. The inner top of the lower core box 401 is provided with a second slide 402. The sliding end of the second slide 402 is provided with a supporting slide 403. The supporting slide 403 is provided with a second clamping slide 404. The two sliding ends of the second clamping slide 404 are provided with a second clamping frame 405. The bottom of the lower core box 401 and below the second clamping frame 405 are provided with a core outlet 407. The core outlet 407 is controlled to open and close by the fourth shutter 408. When the embodiment works, the third shutter 406 is opened, the second clamping frame 405 is moved into the filter tank 101 by the second slide 402, the second clamping frame 405 is folded by the second clamping slide 404 and clamps the filter core assembly 200. Then the filter core assembly 200 is moved into the lower core box 401 by the second slide 402 and the third shutter 406 is closed. Then the fourth shutter 408 is opened, the second clamping frame 405 is separated, the replaced filter core assembly 200 is thrown out, then the fourth shutter 408 is closed and the protective atmosphere is filled in the lower core box 401, so that the filter core assembly 200 is accurately, quickly, orderly and pollution-free replaced.

[0028] In summary, several filter core assemblies 200 are arranged in a head-to-tail stacked structure between the communicating block 104 and the support frame 106 in the filter tank 101, the communicating block 104 is connected to the top filter core assembly 200 through the liquid discharge regulator, the support frame 106 supports the bottom filter core assembly 200 so that the liquid supply pipe 102 and the communication between the filter core assemblies 200 are sealed, then the filtered liquid is input through the liquid supply pipe 102, filtered through the filter core assemblies 200, and when replaced, the bottom filter core assembly 200 is removed, and a new filter core assembly 200 is placed on the top filter core assembly 200, thereby achieving automatic replacement; When replaced, the filter core assemblies 200 other than the bottom filter core assembly 200 are supported, and the seal between the second-to-last filter core assembly 200 and the inner side wall of the filter tank 101 is removed, then the support push rod 105 is retracted, the bottom filter core assembly 200 is separated from the second-to-last filter core assembly 200, the second-to-last filter core assembly 200 automatically seals the connecting port, then the liquid around the bottom filter core assembly 200 is emptied and filled with a protective atmosphere, then the third gate 406 is opened, the second clamp frame 405 is moved into the filter tank 101 through the second slide table 402, the second clamp frame 405 is folded through the second clamp slide table 404 and clamps the filter core assembly 200, then the filter core assembly 200 is moved into the core box 401 through the second slide table 402 and the third gate 406 is closed, then the support push rod 105 is extended to support the filter core assemblies 200, then the seal between the second-to-last filter core assembly 200 and the inner side wall of the filter tank 101 is removed, the liquid supply pipe 102 is temporarily stopped, and the filter core assemblies 200 are lowered as a whole, so that the top filter core assembly 200 and the liquid discharge regulator of the communicating block 104 have a height difference of at least the height of the filter core assembly 200, then the first gate 302 is opened, the filter core assembly 200 is moved into the filter tank 101 through the first slide table 306, then the first gate 302 is reset and closed, then the support push rod 105 is pushed again to maintain the mutual sealing of the communication, and the liquid supply of the liquid supply pipe 102 is started again, thereby accurately, quickly, orderly and without pollution to replace the filter core assemblies 200; When replacing, the filter element assemblies 200 other than the bottom one are supported, the seal between the second last filter element assembly 200 and the inner side wall of the filter tank 101 is released, the liquid supply pipe 102 is stopped, and the push rod 105 is extended to support the filter element assemblies 200, then the second last filter element assembly 200 is separated from the bottom one, the seal of the connecting port is automatically released, the liquid around the bottom filter element assembly 200 is emptied and the protective atmosphere is filled, the bottom filter element assembly 200 is removed, then the seal between the second last filter element assembly 200 and the inner side wall of the filter tank 101 is released again, the push rod 105 is retracted to support the filter element assemblies 200, the liquid supply pipe 102 is started to supply liquid, and the filter element assemblies 200 are lowered as a whole to make the top filter element assembly 200 have a height difference of at least the height of the filter element assembly 200 with the liquid discharge regulator of the communicating block 104, then a new filter element assembly 200 is placed on the top filter element assembly 200, the push rod 105 is pushed again to keep the mutual seal of the communicating ports, and the liquid supply of the liquid supply pipe 102 is started again, so that the filtered pure liquid is outside the filter element assemblies 200 and can be continuously supplied, and the unfiltered liquid is kept in the filter element assemblies 200 until filtered, thus achieving the replacement without delaying the product output and completing the replacement during the output.

[0029] The above disclosure is only several specific embodiments of the present application, but the embodiments of the present application are not limited thereto, and any changes that can be thought of by any person skilled in the art shall fall within the protection scope of the present application.

Claims

1. A filter cartridge, characterized by, The application relates to a filter core assembly (200) which comprises a plurality of filter core assemblies (200) which are consistent in structure and connected end to end, the filter core assembly (200) comprises a filter core top cover (201), a first adjusting cavity (205) is formed in the middle of the upper surface of the filter core top cover (201), a sealing block (209) is slidably sleeved in the first adjusting cavity (205), an installation groove (206) is formed in the filter core top cover (201) and located at the bottom of the first adjusting cavity (205), a first spring (208) is arranged in the installation groove (206), the two ends of the first spring (208) are fixedly connected with the sealing block (209) and the groove bottom of the installation groove (206) respectively, a plurality of first liquid guide cavities (211) which are uniformly distributed in annular array are formed in the filter core top cover (201) and located around the first adjusting cavity (205), the upper end of the first liquid guide cavity (211) is communicated with the upper part of the cavity wall of the first adjusting cavity (205), and the lower end of the first liquid guide cavity (211) is communicated with the upper end of a supporting liquid guide cylinder (202).

2. The filter cartridge of claim 1, wherein A first limiting groove (207) is formed in the cavity wall of the first adjusting cavity (205), a first limiting block (210) is slidably connected in the first limiting groove (207), the first limiting block (210) is fixedly connected with the side wall of the sealing block (209), and a supporting groove (212) is formed in the middle of the outer periphery of the filter core top cover (201).

3. A filter cartridge according to claim 2, wherein, The lower surface of the filter core top cover (201) is fixedly connected with the supporting liquid guide cylinder (202) in the middle, the lower end of the supporting liquid guide cylinder (202) is fixedly connected with a liquid discharging regulator, the liquid discharging regulator comprises an adjusting cylinder (213), the lower end of the adjusting cylinder (213) is fixedly connected with a filter core bottom plate (203) in the outer periphery, the supporting liquid guide cylinder (202) is wrapped with a filter core cloth sleeve (204), and a plurality of through grooves (215) which are uniformly distributed in annular array are formed in the cylinder wall of the supporting liquid guide cylinder (202).

4. A filter cartridge according to claim 3, wherein The middle part of the adjusting cylinder (213) is sleeved with a first liquid guide block (214), a second adjusting cavity (216) is arranged in the middle of the lower end face of the adjusting cylinder (213) and extends into the wall of the adjusting cylinder (213), the second adjusting cavity (216) is slidably sleeved with a sealing cylinder (217), a second limiting groove (218) is arranged on the cavity wall of the second adjusting cavity (216), a second limiting block (219) is slidably connected in the second limiting groove (218), the second limiting block (219) is fixedly connected with the side wall of the sealing cylinder (217), a second spring (220) is arranged in the second adjusting cavity (216), the two ends of the second spring (220) are fixedly connected with the sealing cylinder (217) and the adjusting cylinder (213), a second liquid guide cavity (221) is arranged in the middle part of the first liquid guide block (214), a second liquid guide block (222) is fixedly connected with the lower end of the first liquid guide block (214), a third liquid guide cavity (223) is arranged in the second liquid guide block (222), the second liquid guide cavity (221) is in communication with the support liquid guide cylinder (202) and the third liquid guide cavity (223) respectively, the lower end of the third liquid guide cavity (223) is located on the surrounding side wall of the second liquid guide block (222), and the lower part of the sealing cylinder (217) is sealingly and slidably sleeved on the outer periphery of the second liquid guide block (222).

5. A filter comprising a filter cartridge as claimed in claim 4, characterized in that The filter assembly (100) comprises a filter tank (101), a liquid supply tank (103), a liquid collecting tank (109) and an aeration tank (111) are arranged on one side of the filter tank (101), the top of the filter tank (101) is in communication with the liquid supply tank (103) through a liquid supply pipe (102), the end of the liquid supply pipe (102) in the filter tank (101) is arranged vertically downward, and the end of the liquid supply pipe (102) is also provided with a liquid discharge regulator through a communication block (104), a support push rod (105) is fixedly and sealingly arranged at the bottom of the filter tank (101), the support push rod (105) is coaxial with the communication block (104), and a support frame (106) is mounted on the movable end of the top of the support push rod (105).

6. A filter according to claim 5, wherein The bottom of the filter tank (101) is sealed and penetrates a first liquid outlet pipe (107) and a second liquid outlet pipe (108), the bottom of the first liquid outlet pipe (107) is sealed and penetrates an atmosphere pipe (110), a liquid collecting tank (109) collects the liquid product in the filter tank (101) through the first liquid outlet pipe (107) and the second liquid outlet pipe (108), an air charging tank (111) fills the protective atmosphere into the filter tank (101) through the atmosphere pipe (110), an annular sealing frame (112) is fixedly sleeved on the inner side wall of the middle part of the filter tank (101), a transmission gear ring (113) is rotatably sleeved on the annular sealing frame (112), a plurality of support swing rods (114) are evenly distributed in an annular array and are hinged on the inner peripheral edge of the annular sealing frame (112), and one end of the support swing rod (114) is marked with a tooth pattern meshing with the transmission gear ring (113), a regulating motor (115) is installed on the inner wall of the filter tank (101) and above the annular sealing frame (112), a regulating gear (116) is installed on the lower end of the rotating shaft of the regulating motor (115), and the regulating gear (116) is in meshing transmission with the transmission gear ring (113).

7. A filter according to claim 6, wherein A sealing ring (117) is fixedly sleeved on the inner side wall of the middle part of the filter tank (101) and below the annular sealing frame (112), a sealing air bag ring (118) is installed on the inner periphery of the sealing ring (117), an air charging pipeline is embedded in the sealing ring (117), the sealing air bag ring (118) is in communication with the air charging tank (111) through the air charging pipeline, the upper end of the first liquid outlet pipe (107) is sealingly penetrated through the sealing ring (117), and the first liquid outlet pipe (107), the second liquid outlet pipe (108) and the atmosphere pipe (110) are all provided with valves for opening and closing.

8. An automatic replacement device of a filter cartridge, filter, for replacing the filter cartridge in the filter according to claim 7, characterized by The upper core mechanism (300) and the lower core mechanism (400) are included, the upper core mechanism (300) includes an upper core box (301), one end of the upper core box (301) is in communication with the upper part of the side surface of the filter tank (101), the upper core box (301) controls the opening and closing of the communication process with the filter tank (101) through a first gate (302), a replacement box (303) is installed at the lower part of the upper core box (301), the upper core box (301) is in communication with the replacement box (303) through a penetrating communication groove (304), the upper core box (301) controls the opening and closing of the communication groove (304) through a second gate (305), a first sliding table (306) is installed on the inner side top of the upper core box (301), a vertical sliding table (307) is installed on the sliding end of the first sliding table (306), a first clamping sliding table (308) is installed on the sliding end of the vertical sliding table (307), and a first clamping frame (309) is installed on the two sliding ends of the first clamping sliding table (308).

9. The automatic replacement device for a filter cartridge according to claim 8, characterized in that The inner middle part of the replacement box (303) is provided with a partition plate (310), the side close to the first shutter (302) of the partition plate (310) is provided with a lifting sliding table (311), the sliding end of the lifting sliding table (311) is provided with a lifting support (312), the side close to the lifting support (312) of the side wall of the replacement box (303) is provided with a sealing box door (313), the bottom of the other side of the replacement box (303) is provided with a circulating fan (314), the air inlet of the circulating fan (314) is located at the top and the air outlet is sealed and penetrates through the partition plate (310), the upper side of the replacement box (303) is provided with a dust filter net (315), and the upper side of the replacement box (303) is provided with a dust filter cavity (316).

10. The automatic replacement device for a filter cartridge according to claim 9, characterized in that The lower core mechanism (400) comprises a lower core box (401), one end of the lower core box (401) is communicated with the lower side of the filter tank (101), the lower core box (401) is controlled to be opened and closed through the third shutter (406) to be connected with the filter tank (101), the inner top of the lower core box (401) is provided with a second sliding table (402), the sliding end of the second sliding table (402) is provided with a supporting sliding frame (403), the supporting sliding frame (403) is provided with a second clamping sliding table (404), the two sliding ends of the second clamping sliding table (404) are provided with a second clamping frame (405), the bottom of the lower core box (401) and below the second clamping frame (405) are provided with a core outlet (407), and the lower core box (401) is controlled to be opened and closed through the fourth shutter (408) to control the opening and closing of the core outlet (407).

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