CN108480041B - Magnetic suction net-hanging type filter - Google Patents
Magnetic suction net-hanging type filter Download PDFInfo
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- CN108480041B CN108480041B CN201810410833.3A CN201810410833A CN108480041B CN 108480041 B CN108480041 B CN 108480041B CN 201810410833 A CN201810410833 A CN 201810410833A CN 108480041 B CN108480041 B CN 108480041B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/30—Combinations with other devices, not otherwise provided for
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Abstract
The invention relates to the technical field of filtration, in particular to a magnetic suction hanging net type filter, which comprises a tank body, a water inlet pipe, a water return pipe and a deslagging pipe, wherein the water inlet pipe which can be communicated with the inside of the tank body is arranged in the tank body; the lower part of the tank body is provided with a magnetic adsorption device. The invention has reasonable and compact structure and convenient use, and realizes orderly water flow rising through the cooperation of the filter screen cylinder and the guide hanging net; the guiding and hanging filtration step by step can be realized through the particle size by the guiding and filtering device; the guide filter device is deeply flushed through the flushing device, and the guide filter device has the characteristics of rapidness, high efficiency and durability.
Description
Technical Field
The invention relates to the technical field of filtration, in particular to a magnetic suction hanging net type filter.
Background
At present, the interior of a common water pipe and an oil pipeline in China is not subjected to any corrosion-resistant treatment, so that the interior of the pipeline is easy to rust. Because pipeline carries out high pressure high-speed hot water or oil circulation for a long time, rust, the iron slag that drops in a large number in the trunk line and silt that carries in the water can get into the branch pipeline, and big granule can block the pipeline, and little granule adheres to and causes the pipe internal diameter to diminish, causes the unsmooth scheduling problem of rivers, and especially ground heating pipeline above-mentioned problem is more serious, need often wash ground heating pipeline to influence availability factor greatly, cause the waste of resource, waste of manpower and material resources when increasing the washing pipeline.
Disclosure of Invention
The invention provides a magnetic suction hanging net type filter, which overcomes the defects of the prior art, can effectively solve the problems of easy blockage and unsmooth water flow of the existing pipeline, and can further solve the problems of time and labor waste in pipeline cleaning.
The technical scheme of the invention is realized by the following measures: the magnetic suction net-hanging type filter comprises a tank body, a water inlet pipe, a water return pipe and a deslagging pipe, wherein the water inlet pipe capable of being communicated with the inside of the tank body is arranged in the tank body; the lower part of the tank body is provided with a magnetic adsorption device, at least two groups of guide filter devices which are distributed at intervals up and down are fixedly arranged between the inner wall of the tank body and the water inlet pipe corresponding to the position above the lower end of the water inlet pipe through a fixing device, the mesh number of the guide filter devices is sequentially increased from bottom to top, the guide filter devices comprise at least two filter screen cylinders which are sleeved together from inside to outside, and a guide hanging net is arranged between every two groups of adjacent filter screen cylinders.
The following are further optimizations and/or improvements to the above-described inventive solution:
an annular cavity can be formed between every two groups of adjacent filter screen barrels, and a guide hanging net capable of dividing each annular cavity into at least two fluid channels is arranged in each corresponding annular cavity.
The projection of the guiding hanging net in the horizontal direction can be polygonal.
The upper position of each group of guide filtering devices can be provided with a flushing device, each flushing device comprises a flushing switch valve, flushing pipes and flushing spray heads, the flushing pipes are positioned above the guide filtering devices at corresponding positions, the outer ends of the flushing pipes are positioned outside the tank body, the inner ends of all the flushing pipes are sealed and positioned inside the tank body, the lower side of the inner end of each flushing pipe is provided with at least one flushing spray head, and each flushing pipe positioned outside the tank body is provided with a flushing switch valve; the outer ends of all flushing pipes are communicated with the outer ends of the water return pipes through communicating pipes.
The water inlet pipe is provided with the water inlet switch valve, the water return switch valve and the slag removal switch valve, the water return pipe is provided with the water return switch valve at the outer end, and the slag removal switch valve is provided with the slag removal switch valve at the lower end.
The tank body is provided with an oil return connecting pipe, one end of the oil return connecting pipe is positioned between the upper end of the water inlet pipe and the water inlet switch valve and is communicated with the water inlet pipe, the other end of the oil return connecting pipe is positioned between the inner end of the water return pipe and the water return switch valve and is communicated with the water return pipe, and the oil return connecting pipe is provided with the oil way valve.
The fixing device can be a fixing frame capable of enabling liquid to pass through, the fixing frame is arranged at the upper end of the guiding filtering device or/and the lower end of the guiding filtering device, and the guiding filtering device is fixedly arranged on the inner wall of the tank body through the fixing frame.
The magnetic adsorption device can be a permanent magnet, the permanent magnet is arranged on the outer side of the lower part of the tank body corresponding to the lower part of the lower end of the water inlet pipe, and the permanent magnet is arranged on the outer side of the bottom of the tank body.
The tank body is provided with an exhaust pipe and a pressure gauge, and the exhaust pipe is provided with an exhaust valve.
The tank body can further comprise lifting lugs, and a group of lifting lugs which are symmetrically distributed are arranged at the upper end of the tank body.
The invention has reasonable and compact structure and convenient use, and realizes orderly water flow rising through the cooperation of the filter screen cylinder and the guide hanging net; the guiding and hanging filtration step by step can be realized through the particle size by the guiding and filtering device; the guide filter device is deeply flushed through the flushing device, and the guide filter device has the characteristics of rapidness, high efficiency and durability.
Drawings
Fig. 1 is a schematic view of a partial cross-sectional structure of a first embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view of FIG. 1 at A-A.
Fig. 3 is a schematic view of a partial cross-sectional structure of a second embodiment of the present invention.
The codes in the drawings are respectively: 1 is a tank body, 2 is a water inlet pipe, 3 is a water inlet switch valve, 4 is a water return pipe, 5 is a water return switch valve, 6 is a deslagging pipe, 7 is a deslagging switch valve, 8 is a filter screen cylinder, 9 is a guide hanging net, 10 is a flushing switch valve, 11 is a flushing pipe, 12 is a flushing spray head, 13 is a communicating pipe, 14 is a fixing frame, 15 is a permanent magnet, 16 is an exhaust pipe, 17 is a pressure gauge, 18 is a lifting lug, 19 is an exhaust valve, 20 is an oil return connecting pipe, and 21 is an oil way valve.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments can be determined according to the technical scheme and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative positional relationship of each component is described according to the layout manner of fig. 1 of the specification, for example: the positional relationship of the front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.
The invention is further described below with reference to examples and figures:
embodiment one: as shown in figures 1 and 2, the magnetic suction hanging net type filter comprises a tank body 1, a water inlet pipe 2, a water return pipe 4 and a deslagging pipe 6, wherein the water inlet pipe 2 which can be communicated with the inside of the tank body 1 is arranged in the tank body 1, the upper end of the water inlet pipe 2 is positioned above the tank body 1, the water return pipe 4 which can be communicated with the inside of the tank body is arranged on the outer wall of the upper part of the tank body 1, the outer end of the water return pipe 4 is positioned outside the tank body 1, the deslagging pipe 6 which can be communicated with the inside of the tank body 1 is arranged at the bottom of the tank body 1, and the lower end of the deslagging pipe 6 is positioned below the tank body 1; the lower part of the tank body 1 is provided with a magnetic adsorption device, at least two groups of guide filter devices which are distributed at intervals up and down are fixedly arranged between the inner wall of the tank body 1 corresponding to the position above the lower end of the water inlet pipe 2 and the water inlet pipe 2 through a fixing device, the mesh number of the guide filter devices is sequentially increased from bottom to top, the guide filter devices comprise at least two filter screen barrels 8 which are sleeved together at intervals from inside to outside, and a guide hanging net 9 is arranged between every two groups of adjacent filter screen barrels 8.
According to the requirements, a guiding hanging net 9 can be arranged between the outermost filter screen cylinder 8 and the inner wall of the tank body 1, and the outermost filter screen cylinder 8 can be in direct contact with the inner wall of the tank body 1; a guiding hanging net 9 can be arranged between the innermost filter screen cylinder 8 and the outer wall of the water inlet pipe 2, and the innermost filter screen cylinder 8 can be in direct contact with the outer wall of the water inlet pipe 2; different groups of guiding filter devices, different meshes of guiding hanging nets 9 and different meshes of filter screen drums 8 can be arranged according to actual conditions, so that the filter requirements can be met; the embodiment can be internally provided with a water inlet switch valve 3, a water return switch valve 5 and a slag removal switch valve 7 which are known in the prior art, the upper end of the water inlet pipe 2 is provided with the water inlet switch valve 3, the outer end of the water return pipe 4 is provided with the water return switch valve 5, and the lower end of the slag removal pipe 6 is provided with the slag removal switch valve 7; three groups of guiding and filtering devices which are distributed at intervals up and down can be fixedly arranged in the tank body 1 corresponding to the position between the water return pipe 4 and the lower end of the water inlet pipe 2 through a fixing device, the particle size of the guiding and filtering device at the lowest position can be between 0.2mm and 0.5mm, the particle size of the guiding and filtering device at the middle position can be between 0.1mm and 0.2mm, and the particle size of the guiding and filtering device at the highest position can be smaller than 0.1mm; in addition, the magnetic adsorption device can adopt the prior known electromagnet, permanent magnet and the like, when the electromagnet is used, the magnetism of the magnetic adsorption device is controlled by powering on and off the electromagnet, and when the permanent magnet is used, the magnetic adsorption device is controlled by mounting and dismounting the permanent magnet; the filter screen cylinder 8 can be formed into a cylinder shape by connecting the end to end of a known stainless steel filter screen, and the guide hanging net 9 is made of a stainless steel material. In the use process, the annular cavity between every two groups of guide filtering devices which are distributed at intervals up and down is called a filtering buffer area, and water flow entering the filtering buffer area is in a disordered rolling state; the embodiment is connected with the prior known vessel for storing the liquid to be filtered, such as a floor heating heat supply pipeline and the like, the vessel for storing the liquid to be filtered is provided with a water outlet pipeline and a water inlet pipeline, the upper end of the water inlet pipe 2 is fixedly arranged with the water outlet pipeline, the outer end of the water return pipe 4 is fixedly arranged with the water inlet pipeline, and filtering operation can be performed at the moment. In the operation of filtering operation, the water inlet switch valve 3 and the water return switch valve 5 can be opened, water flow in the vessel storing the liquid to be filtered flows into the bottom of the tank body 1 through the water inlet pipe 2, the magnetic adsorption device arranged at the bottom of the tank body 1 is used for adsorption filtration, and the iron rust slag in the water flow is adsorbed by the adsorption force of the magnetic adsorption device, so that the iron rust slag is prevented from entering the guide filter device to cause the internal blockage of the guide filter device; the rivers that flow into the jar body 1 through inlet tube 2 will be unordered roll the form in jar body 1 to continuously rise to the direction filter equipment that is in the below position in jar body 1, accessible direction filter equipment carries out the direction through this moment and hangs the filtration, and specific direction hangs the filtration process and does: the guide hanging net 9 enables unordered rolling water flow to rise orderly through diversion, impurities in the water flow are blocked in meshes through meshes of the guide hanging net 9, and guide hanging filtration is achieved; then the water flow continuously rises to the guide filtering device positioned above in a disordered way, and guide hanging filtering is carried out according to the mode; therefore, step-by-step guiding suspension filtration can be realized through each guiding filtration device, and the filtration effect of the embodiment is enhanced; the water flow after being guided and suspended and filtered by all the guiding and filtering devices enters the water inlet pipeline through the water return pipe 4, so that the water flow circulation is realized. When the cleaning operation is required for the embodiment, firstly, the water inlet switch valve 3 is closed, then the adsorption force of the magnetic adsorption device is canceled, and then the slag removal switch valve 7 is opened, so that water flow in the water inlet pipeline flows back into the tank body 1 from the water return pipe 4 due to the high pressure, the flushing of the guide filtering device is realized through water pressure, and the flushed sundries are discharged from the slag removal pipe 6. After the cleaning operation is finished, the slag removal switch valve 7 is closed, and the water inlet switch valve 3 is opened after the adsorption force of the magnetic adsorption device is recovered. In addition, this embodiment is not only applicable to the liquid filtration in petrochemical, more be applicable to the filtration of hot water in the heating pipeline of heating floor in urban heating system, the heating pipeline of heating floor is the steel sheet book system and forms, except outside with heat preservation foam and plastics parcel, inside does not do any anticorrosive treatment, it is extremely easy rust to lead to in the heating pipeline, when need to filter hot water in the heating pipeline of heating floor, can pack this embodiment into the heating pipeline, the heating pipeline is equipped with play water route and inlet channel, inlet tube 2 upper end and play water route fixed mounting together, the return pipe 4 outer end and inlet channel fixed mounting together, not only can be used for every individual use of family, can also be used for the filtration of hot water in the heating pipeline of heating floor of whole building and whole district according to actual demand. The embodiment has reasonable and compact structure and convenient use, and realizes orderly rising of water flow by the cooperation of the filter screen cylinder 8 and the guide hanging net 9; the guiding and hanging filtration step by step can be realized through the particle size of the guiding and filtering device, and the device has the characteristics of rapidness, high efficiency and durability.
The magnetic suction net type filter can be further optimized or/and improved according to actual needs:
as shown in fig. 1 and 2, an annular cavity is formed between every two groups of adjacent filter screen barrels 8, and a guiding hanging net 9 capable of dividing each annular cavity into at least two fluid channels is arranged in each corresponding annular cavity. In the use, can make unordered rolling form rivers become orderly when passing through direction string net 9 through this kind of setting, on the other hand, through the area of contact of increase direction string net 9 and rivers to increase direction string net 9 filtration efficiency.
As shown in fig. 1 and 2, the projection of the guiding screen 9 in the horizontal direction is polygonal. In the use, can make unordered rolling form rivers become orderly at uniform velocity when going through direction string net 9 through this kind of setting to make direction string net 9 and rivers have bigger area of contact, thereby further promote the filtration efficiency of direction string net 9. According to the requirements, the projection of the horizontal direction of the guiding hanging net 9 can be in a star-shaped polygon, and the best filtering effect is obtained when the projection of the horizontal direction of the guiding hanging net 9 is in a regular star-shaped polygon. The guiding hanging net 9 can be made of the prior known stainless steel hanging net, and the prior known stainless steel hanging net is folded back and forth into a sector and then is arranged in an annular cavity between every two groups of adjacent filter screen barrels 8.
As shown in fig. 1 and 2, a flushing device is arranged above each group of guide filtering devices, the flushing device comprises a flushing switch valve 10, flushing pipes 11 and flushing spray heads 12, the flushing pipes 1 are positioned above the guide filtering devices at corresponding positions, the outer ends of the flushing pipes 11 are positioned outside the tank body 1, the inner ends of all the flushing pipes 11 are closed and positioned inside the tank body 1, at least one flushing spray head 12 is arranged at the lower side of the inner end of each flushing pipe 11, and each flushing pipe 11 positioned outside the tank body 1 is provided with a flushing switch valve 10; the outer ends of all the flushing pipes 11 are communicated with the outer ends of the water return pipes 4 through communicating pipes 13. In the use process, the deep flushing of the guide filtering device is realized by arranging the flushing device, when the cleaning operation is required to be carried out on the embodiment, firstly, the water inlet switch valve 3 is closed, then the adsorption force of the magnetic adsorption device is canceled, the deslagging switch valve 7 is opened, the water flow in the water return pipe 4 flows back into the tank body 1 from the water return pipe 4 due to the self high pressure, so that the primary flushing of the guide filtering device is realized through the water pressure, sundries after the primary flushing are discharged from the deslagging pipe 6, after the primary flushing operation is finished, the deep flushing operation is carried out, at the moment, the water return switch valve 5 is closed, the water flow in the water return pipe 4 flows back into each flushing pipe 11 under the action of the communicating pipe 13, firstly, the flushing switch valve 10 of the flushing device above the guide filtering device at the uppermost position is opened, the water flow in the water return flushing pipe 11 flows back to the guide filtering device at the uppermost position through the flushing nozzle 12 at the uppermost position to realize the high-pressure deep flushing operation, and the flushing switch valve 10 at the current position is closed after flushing; then the flushing switch valve 10 of the flushing device above the guiding filtering device at the middle position is opened, the water flow in the back flushing pipe 11 passes through the flushing nozzle 12 at the position to realize high-pressure deep flushing operation on the guiding filtering device at the middle position by high-pressure water flow, and the flushing switch valve 10 at the current position is closed after flushing; finally, a flushing switch valve 10 of a flushing device above the guiding filtering device at the lowest position is opened, water flow in a backflow back flushing pipe 11 passes through a flushing nozzle 12 at the lowest position to realize high-pressure deep flushing operation on the guiding filtering device at the lowest position, and the flushing switch valve 10 at the current position is closed after flushing; after the deep flushing operation is finished, the deslagging switch valve 7 is closed, and the water inlet switch valve 3 and the water return switch valve 5 are opened after the adsorption force of the magnetic adsorption device is recovered. According to the demand, every flushing pipe 11 inner downside all is equipped with 4-8 shower nozzles 12, and the better of deep flushing operation of being convenient for goes on.
As shown in figures 1 and 2, the water inlet and outlet device further comprises a water inlet switch valve 3, a water return switch valve 5 and a deslagging switch valve 7, wherein the water inlet switch valve 3 is arranged at the upper end of the water inlet pipe 2, the water return switch valve 5 is arranged at the outer end of the water return pipe 4, and the deslagging switch valve 7 is arranged at the lower end of the deslagging pipe 6. In use, control of the present embodiment is facilitated by such an arrangement. According to the requirements, the water inlet switch valve 3, the water return switch valve 5 and the flushing switch valve 10 can be electromagnetic valves, and intelligent control of the embodiment is realized through the electromagnetic valves.
Embodiment two: as shown in fig. 3, the tank further comprises an oil return connecting pipe 20 and an oil way valve 21, the oil return connecting pipe 20 is arranged outside the tank body 1, one end of the oil return connecting pipe 20 is positioned between the upper end of the water inlet pipe 2 and the water inlet switch valve 3 and is communicated with the water inlet pipe 2, the other end of the oil return connecting pipe 20 is positioned between the inner end of the water return pipe 4 and the water return switch valve 5 and is communicated with the water return pipe 4, and the oil way valve 21 is arranged on the oil return connecting pipe 20. In the use process, when oil in the existing known oil supply pipeline is required to be filtered, the embodiment and the oil supply pipeline can be installed together, the oil supply pipeline is provided with an oil outlet pipeline and an oil inlet pipeline, the upper end of the water inlet pipe 2 is fixedly installed together with the oil outlet pipeline, the outer end of the water return pipe 4 is fixedly installed together with the oil inlet pipeline, the upper end of the water inlet pipe 2 and the outer end of the water return pipe 4 are fixedly installed together with the oil outlet pipeline, the oil circuit valve 21 is closed, oil filtration is carried out by the same method in the embodiment, when cleaning operation is required, the same method in the embodiment cannot be carried out due to the fact that the oil inlet pipeline is not pressurized, the primary flushing operation and the deep flushing operation cannot be carried out by the same method in the embodiment because the oil inlet pipeline is returned in the oil supply pipeline, at the moment, after the water inlet switch valve 3 and the water return switch valve 5 are closed, the oil circuit valve 21 is opened, and the same method in the embodiment is carried out by the pressure when the oil is fed into the oil pipeline in the oil supply pipeline. According to the demand, the oil circuit valve can adopt the solenoid valve, is convenient for intelligent control of this embodiment.
As shown in fig. 1, 2 and 3, the fixing device is capable of enabling liquid to pass through the fixing frame 14, the fixing frame 14 is arranged at the upper end of the guiding filter device or/and the lower end of the guiding filter device, and the guiding filter device is fixedly arranged on the inner wall of the tank body 1 through the fixing frame 14. In the use process, the stability of the invention in use is ensured through the arrangement, and the fixed installation mode can adopt the prior known technology such as welding. In addition, in order not to affect the passage of the liquid, the projection of the fixing frame 14 in the horizontal direction may be in a groined shape.
As shown in fig. 1, 2 and 3, the magnetic adsorption device is a permanent magnet 15, the permanent magnet 15 is arranged on the outer side of the lower part of the tank body 1 corresponding to the lower part of the lower end of the water inlet pipe 2, and the permanent magnet 15 is arranged on the outer side of the bottom of the tank body 1. In the use, if use the electro-magnet, adsorb the filtration and will become invalid when having a power failure, can't realize the adsorption filtration of iron rust iron slag, consequently use permanent magnet 15 to avoid adsorbing the filtration and become invalid because of having a power failure. According to the requirement, the permanent magnet 15 can be provided with a protective cover outside, so that the invention is attractive.
As shown in fig. 1, 2 and 3, the tank further comprises an exhaust pipe 16, an exhaust valve 19 and a pressure gauge 17, wherein the exhaust pipe 16 and the pressure gauge 17 are arranged at the upper end of the tank body 1, and the exhaust valve 19 is arranged on the exhaust pipe 16. During use, the air pressure in the tank body 1 is detected by the pressure gauge 17, and when the air pressure is excessive, the exhaust pipe 16 is deflated by opening the exhaust valve 19.
As shown in fig. 1, 2 and 3, the tank further comprises lifting lugs 18, and a group of lifting lugs 18 which are symmetrically distributed are arranged at the upper end of the tank body 1. In use, the lifting installation of the invention is facilitated by the provision of lifting lugs 18.
The technical characteristics form the optimal embodiment of the invention, have stronger adaptability and optimal implementation effect, and can increase or decrease unnecessary technical characteristics according to actual needs so as to meet the requirements of different situations.
Claims (9)
1. The magnetic suction net-hanging filter is characterized by comprising a tank body, a water inlet pipe, a water return pipe and a deslagging pipe, wherein the water inlet pipe capable of being communicated with the inside of the tank body is arranged in the tank body; the lower part of the tank body is provided with a magnetic adsorption device, at least two groups of guide filter devices which are distributed at intervals up and down are fixedly arranged between the inner wall of the tank body and the water inlet pipe corresponding to the position above the lower end of the water inlet pipe through a fixing device, the mesh number of the guide filter devices is sequentially increased from bottom to top, the guide filter devices comprise at least two filter screen cylinders which are sleeved together at intervals from inside to outside, and a guide hanging net is arranged between every two adjacent filter screen cylinders; an annular cavity is formed between every two adjacent filter screen barrels, a guide hanging net capable of dividing each annular cavity into at least two fluid channels is arranged in each corresponding annular cavity, and the filter screen barrels are matched with the guide hanging net to realize orderly water flow rising.
2. The magnetically attractable screen filter of claim 1 wherein the projection of the guide screen in the horizontal direction is polygonal.
3. The magnetic suction screen type filter according to claim 1 or 2, wherein a flushing device is arranged above each group of guide filtering devices, the flushing device comprises a flushing switch valve, flushing pipes and flushing spray heads, the flushing pipes are positioned above the guide filtering devices at corresponding positions, the outer ends of the flushing pipes are positioned outside the tank body, the inner ends of all the flushing pipes are closed and positioned inside the tank body, at least one flushing spray head is arranged on the lower side of the inner end of each flushing pipe, and each flushing pipe positioned outside the tank body is provided with a flushing switch valve; the outer ends of all flushing pipes are communicated with the outer ends of the water return pipes through communicating pipes.
4. The magnetic suction screen type filter according to claim 1 or 2, further comprising a water inlet switch valve, a water return switch valve and a slag removal switch valve, wherein the water inlet switch valve is arranged at the upper end of the water inlet pipe, the water return switch valve is arranged at the outer end of the water return pipe, and the slag removal switch valve is arranged at the lower end of the slag removal pipe.
5. The magnetic suction screen type filter according to claim 3, further comprising a water inlet switch valve, a water return switch valve and a slag removal switch valve, wherein the water inlet switch valve is arranged at the upper end of the water inlet pipe, the water return switch valve is arranged at the outer end of the water return pipe, and the slag removal switch valve is arranged at the lower end of the slag removal pipe.
6. The magnetic suction screen type filter according to claim 5, further comprising an oil return connecting pipe and an oil way valve, wherein the oil return connecting pipe is arranged outside the tank body, one end of the oil return connecting pipe is positioned between the upper end of the water inlet pipe and the water inlet switch valve and is communicated with the water inlet pipe, the other end of the oil return connecting pipe is positioned between the inner end of the water return pipe and the water return switch valve and is communicated with the water return pipe, and the oil way valve is arranged on the oil return connecting pipe.
7. The magnetic suction net type filter according to claim 1, 2, 5 or 6, wherein the fixing device is a fixing frame capable of allowing liquid to pass through, the upper end of the guiding filter device or/and the lower end of the guiding filter device is/are provided with the fixing frame, and the guiding filter device is fixedly arranged on the inner wall of the tank body through the fixing frame.
8. The magnetic net-hanging filter according to claim 7, wherein the magnetic attraction device is a permanent magnet, the permanent magnet is arranged at the outer side of the lower part of the tank body corresponding to the position below the lower end of the water inlet pipe, and the permanent magnet is arranged at the outer side of the bottom of the tank body.
9. The magnetic suction net-hanging filter according to claim 1 or 2 or 5 or 6 or 8, further comprising an exhaust pipe, an exhaust valve and a pressure gauge, wherein the upper end of the tank body is provided with the exhaust pipe and the pressure gauge, and the exhaust valve is arranged on the exhaust pipe; or/and, the tank body also comprises lifting lugs, and a group of lifting lugs which are symmetrically distributed are arranged at the upper end of the tank body.
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| CN201810410833.3A CN108480041B (en) | 2018-05-02 | 2018-05-02 | Magnetic suction net-hanging type filter |
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| CN201810410833.3A CN108480041B (en) | 2018-05-02 | 2018-05-02 | Magnetic suction net-hanging type filter |
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| CN108480041A CN108480041A (en) | 2018-09-04 |
| CN108480041B true CN108480041B (en) | 2023-08-15 |
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| CN203155367U (en) * | 2013-04-16 | 2013-08-28 | 卢林娣 | Improved fine filter for oil products |
| CN104121758A (en) * | 2014-07-05 | 2014-10-29 | 广东翔俊环保设备有限公司 | High-pressure pipe type dehydration equipment |
| CN206069441U (en) * | 2016-09-21 | 2017-04-05 | 福州新北生化工业有限公司 | A kind of active carbon filter |
| CN207996738U (en) * | 2018-05-02 | 2018-10-23 | 谭程文 | Magnetic hangs well strainer |
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