A kind of multi-stage filter cartridge structure for filter deviceTechnical field
The present invention relates to filtration art, specially a kind of multi-stage filter cartridge structures for filter device.
Background technology
Filter (filter) is indispensable a kind of device on pumped (conveying) medium pipeline, is typically mounted on pressure reducing valve, lets outPressure valve, Valve for keeping constant water level, the import end equipment of square work filter miscellaneous equipment.Filter is by cylinder, stainless steel filtering net, blowdown portionDivide, transmission device and electrical control division are grouped as.After the filter cylinder of strainer screen, impurity is blocked pending water,When needing cleaning, as long as dismountable filter cylinder is taken out, reloaded after processing, therefore, working service is extremely convenient.Also there are many filter devices in the market, built-in cartridge filter, still, most of cartridge filter is an entirety, internal activated carbonIt is all crowded together, internal activated carbon because length issue is easily broken off, influences filter effect over time in this way.
Invention content
Present invention solves the technical problem that being to overcome the problems, such as that existing filter effect is bad, provide a kind of for filtering dressThe multi-stage filter cartridge structure put.It is good that the multi-stage filter cartridge structure for filter device has the characteristics that filtering is imitated.
To achieve the above object, the present invention provides following technical solution：A kind of multi-stage filter cartridge structure for filter device,Including upper filter cylinder, the downside of the upper filter cylinder is equipped with middle filter cylinder, and the downside of middle filter cylinder is equipped with lower filter cylinder, the upper filter cylinder, inThe upper end of filter cylinder and lower filter cylinder is circumferentially equipped with external screw thread, and the lower end inside of upper filter cylinder and middle filter cylinder is circumferentially equipped with and outer spiral shellThe internal thread of line connection, is attached between the upper filter cylinder, middle filter cylinder and lower filter cylinder by adjacent external screw thread and internal thread,And the lower end of lower filter cylinder is connected with the connector of annular, the inner cavity upper and lower side of the upper filter cylinder, middle filter cylinder and lower filter cylinder is equipped withFilter screen, and the middle part of filter screen is equipped with jack, is plugged with central tube in the jack, and the upper and lower ends of central tube respectively withTop side is connected with the jack of lower side, the central tube is equipped with port, and the lower end of the filter screen of lower side is equipped with annularOn divide water ring, and on the lower end of water ring is divided to be deep into connector, it is described on divide between water ring and connector there are into water space,Lower cover is threaded on the downside of the lower filter cylinder, the intracavity bottom of the lower cover is equipped with what is be connected with upper point water ringUnder divide water ring, and on water ring is divided to be plugged on down divide in water ring, the inner cavity bottom end of the lower cover is circumferentially with inlet opening, and intakeHole face is into water space, and between lower point of water ring and the inner wall of lower cover, the bottom of the lower cover is equipped with for the inlet openingApopore, and apopore is located in lower point of water ring, the lower end of the apopore is connected with outlet pipe, the upper filter cylinder, middle filter cylinderWith, filled with filtrate, the filtrate is between corresponding two filter screens in lower filter cylinder.
Preferably, the upper end of the upper filter cylinder is equipped with upper cover, and is threadedly coupled between upper cover and upper filter cylinder.
Preferably, the filtrate in the upper filter cylinder, middle filter cylinder and lower filter cylinder can differ.
Preferably, it is an integral molding structure between the connector and lower filter cylinder.
Compared with prior art, the beneficial effects of the invention are as follows：This is used for the multi-stage filter cartridge structure of filter device, upper filterCylinder, middle filter cylinder and lower filter cylinder are standardization filter cylinder, can be end to end, due to being divided into three sections, corresponding activated carbon also byBe divided into three sections, the activated carbon of a section independent in this way due to length shortens and stress ability to bear enhances, it is not easy to break, using moreLong, filter effect is more preferable, and the filter screen of lower side has Intercepting effects to bulky grain object, stifled during by intermediate filter screenSituation has greatly reduced, therefore does not need to block clearing of entering regularly, it is only necessary to reference to backwash periodically to nethermost mistakeStrainer is cleaned.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the structure diagram of the lower cover of the present invention；
Fig. 3 is the middle filter cylinder of the present invention and the connection diagram of filter screen；
Fig. 4 is the filter screen of the present invention and the connection diagram of central tube.
In figure：Filter cylinder, 3 times filter cylinders, 4 external screw threads, 5 internal threads, 6 connectors, 7 filter screens, 8 jacks, 9 in filter cylinder, 2 on 1Central tube divides under water ring, 11 times covers, 12 on 10 and divides water ring, 13 inlet openings, 14 apopores, 15 outlet pipes, cover on 16.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, completeSite preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based onEmbodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative workEmbodiment shall fall within the protection scope of the present invention.
- 4 are please referred to Fig.1, the present invention provides a kind of technical solution：A kind of multi-stage filter cartridge structure for filter device, packetFilter cylinder 1 is included, the downside of upper filter cylinder 1 is equipped with middle filter cylinder 2, and the downside of middle filter cylinder 2 is equipped with lower filter cylinder 3, upper filter cylinder 1, middle filter cylinder 2External screw thread 4 is circumferentially equipped with, and the lower end inside of upper filter cylinder 1 and middle filter cylinder 2 is circumferentially equipped with and outer spiral shell with the upper end of lower filter cylinder 3The internal thread 5 that line 4 connects, is connected between upper filter cylinder 1, middle filter cylinder 2 and lower filter cylinder 3 by adjacent external screw thread 4 and internal thread 5It connects, and the lower end of lower filter cylinder 3 is connected with the connector 6 of annular, the inner cavity upper and lower side of upper filter cylinder 1, middle filter cylinder 2 and lower filter cylinder 3 is equalEquipped with filter screen 7, and the middle part of filter screen 7 is equipped with jack 8, and central tube 9, and the upper and lower ends of central tube 9 are plugged in jack 8The jack 8 with top side and lower side is connect respectively, the central tube 9 is equipped with port, in this way by the water of filtrate through portIt enters in central tube 9, is then passed through out of upper point water ring 10, the lower end of the filter screen 7 of lower side is equipped with the Shang Fenshui of annularRing 10, and on the lower end of water ring 10 is divided to be deep into connector 6, above divide between water ring 10 and connector 6 there are into water space, underThe downside of filter cylinder 3 is threaded with lower cover 11, the intracavity bottom of lower cover 11 is equipped be connected with upper point water ring 10 underPoint water ring 12, and on water ring 10 is divided to be plugged on down divide in water ring 12, the inner cavity bottom end of lower cover 11 is circumferentially with inlet opening 13, and13 face of inlet opening is into water space, and inlet opening 13 is between lower point of water ring 12 and the inner wall of lower cover 11, the bottom of lower cover 11Portion is equipped with apopore 14, and apopore 14 is located in lower point of water ring 12, and the lower end of apopore 14 is connected with outlet pipe 15, upper filter cylinder1st, filtrate is filled in middle filter cylinder 2 and lower filter cylinder 3, filtrate is between corresponding two filter screens 7.
As a kind of technical optimization scheme of the present invention, the upper end of upper filter cylinder 1 is equipped with upper cover 16, and upper cover 16 with it is upperIt is threadedly coupled between filter cylinder 1, it is easy to disassemble.
As a kind of technical optimization scheme of the present invention, the filtrate in upper filter cylinder 1, middle filter cylinder 2 and lower filter cylinder 3 can not phaseTogether, it is activated carbon, or other.
As a kind of technical optimization scheme of the present invention, it is an integral molding structure, is convenient between connector 6 and lower filter cylinder 3Manufacture.
This is used for the multi-stage filter cartridge structure of filter device, and upper filter cylinder 1, middle filter cylinder 2 and lower filter cylinder 3 are standardization filter cylinder,Can be end to end, due to being divided into three sections, corresponding activated carbon is also divided into three sections, the activated carbon of a section independent in this way byIt shortens and the enhancing of stress ability to bear in length, not easy to break, use is more long, and filter effect is more preferable, and the filter screen 7 of lower side is rightBulky grain object has Intercepting effects, and during by intermediate filter screen 7, stifled situation has greatly reduced, therefore does not need to be frequentProperty block clearing of entering, it is only necessary to reference to backwash periodically nethermost filter screen 7 is cleaned.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be withUnderstanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replaceAnd modification, the scope of the present invention is defined by the appended.