CN205145738U

CN205145738U - Self -cleaning filter

Info

Publication number: CN205145738U
Application number: CN201520692494.4U
Authority: CN
Inventors: 陈厚
Original assignee: SHENZHEN PREUSST AIR COMPRESSOR Ltd
Current assignee: SHENZHEN PREUSST AIR COMPRESSOR Ltd
Priority date: 2015-09-08
Filing date: 2015-09-08
Publication date: 2016-04-13
Anticipated expiration: 2025-09-08

Abstract

The utility model provides a self -cleaning filter, it includes: the shell, utensil filter chamber and blowdown chamber, the filter chamber extends a water inlet and a delivery port, and a drain is extended in the blowdown chamber, filter the disc, will the filter chamber separates into colating chamber and thin filter chamber, the colating intracavity is arranged in to the coarse strainer, thin filter screen is arranged in the thin filter chamber, sewage suction pipe wears to thin filter chamber from the blowdown chamber, extends a plurality of suction nozzles in the part of thin filter chamber, and the part in the blowdown chamber is equipped with the intercommunicating pore, drive unit for drive sewage suction pipe is rotatory, drain department is arranged in to the solenoid valve, differential pressure sensor and controller. The utility model discloses self -cleaning filter detects the pressure differential in the interior outside of thin filter screen through differential pressure sensor, is rotating and the soil pick -up along thin filter screen inboard through sewage suction pipe, has realized air compressor machine water cooling circuit's self - cleaning and automatic blowdown function, removes artifical maintenance cost from, incessant water supply when rinsing the blowdown in addition, does not need the air compressor machine to shut down.

Description

Self-cleaning filter

Technical field

The utility model relates to filter cleaner technical field, particularly relates to a kind of self-cleaning filter.

Background technology

Air compressor machine can produce more heat in running, and in order to reduce the running temperature of air compressor machine, prior art adopts mode that is air-cooled or water-cooled to lower the temperature to air-compressor set.But after water-cooled air compressor cold device uses for a long time, the heavy carbonic salts substances such as the calcium in cooler in air compressor water, magnesium can form incrustation scale wherein, cooling water channel can produce corrosion, air compressor machine inlet and outlet temperature raises, air can not be cooled to predetermined temperature, so need to filter to ensure the unimpeded of cooling water channel to cooling water.

The filter of the cooler in air compressor of prior art can not carry out automatic cleaned filter screen in the process of work; need air compressor machine to shut down and the screen pack taking out filter carries out manual cleaning; although the filtration achieved air compressor cooling water loop and removal of impurities; substantially the functional requirement of equipment is met; but by reasons such as existing blowdown mode, filtration, manual operations; cannot remove impurity fast, and the more occasion of impurity still by pipeline blockage, can affect the service efficiency of equipment.

Utility model content

Technical problem to be solved in the utility model, be to provide a kind of structure simple, can automatically detect dirt deposition degree and carry out the self-cleaning filter of dirt cleaning.

The utility model solves the problems of the technologies described above adopted technical scheme:

The utility model provides a kind of self-cleaning filter, and it comprises: shell, and have the filter chamber and blowdown chamber that are isolated from each other, described filter chamber extends a water inlet and a delivery port, and a sewage draining exit is extended in described blowdown chamber; Filter disc, be placed in described filter chamber, and described filter chamber is divided into coarse filtration chamber and fine filtering chamber, described coarse filtration chamber communicates with described water inlet, and described fine filtering chamber communicates with described delivery port; Coarse strainer, is placed in described coarse filtration chamber; Fie screen, is placed in described fine filtering chamber; Dirt sucking tube, wears to fine filtering chamber from described blowdown chamber, extends multiple suction nozzle arranged in divergent shape, be provided with intercommunicating pore in the part in described blowdown chamber in the part in described fine filtering chamber; Driver element, rotates for driving described dirt sucking tube; Magnetic valve, is placed in described sewage draining exit place, for the keying of control of sewage disposal mouth; Differential pressure pickup, for detecting the pressure reduction in outside in described fie screen; And controller, it is electrically connected with described magnetic valve and differential pressure pickup.

As the further improvement of technique scheme, described driver element comprises motor, described motor by mechanical driving by power transmission to dirt sucking tube.

As the further improvement of technique scheme, described mechanical driving is worm and gear assembly.

As the further improvement of technique scheme, described mechanical driving is helical gear assembly.

As the further improvement of technique scheme, the material of described shell is ABS or nylon engineering plastic.

As the further improvement of technique scheme, the bottom in described coarse filtration chamber is provided with the centrifugal pan for making current produce whirlpool.

As the further improvement of technique scheme, be all provided with temperature sensor at described water inlet and water outlet, described temperature sensor is electrically connected with described controller.

The beneficial effects of the utility model are:

The utility model self-cleaning filter is detected the pressure reduction in outside in fie screen by differential pressure pickup; inside fie screen, rotation is being carried out and soil pick-up by dirt sucking tube; achieve automatic cleaning and the automatic blowdown function in air compressor cooling water loop; remove manual maintenance cost from, and uninterruptedly supply water when cleaning blowdown, do not need air compressor machine to shut down.

Accompanying drawing explanation

Fig. 1 is the three-dimensional cutaway view of the utility model self-cleaning filter;

Fig. 2 is the detonation configuration schematic diagram of the utility model self-cleaning filter;

Fig. 3 is the full sectional view of the utility model self-cleaning filter.

Detailed description of the invention

Be clearly and completely described below with reference to embodiment and the accompanying drawing technique effect to design of the present utility model, concrete structure and generation, to understand the purpose of this utility model, characteristic sum effect fully.Obviously; described embodiment is a part of embodiment of the present utility model, instead of whole embodiment, based on embodiment of the present utility model; other embodiments that those skilled in the art obtains under the prerequisite not paying creative work, all belong to the scope of the utility model protection.In addition, all connection/annexations related in patent, not singly refer to that component directly connects, and refer to and according to concrete performance, can connect auxiliary by adding or reducing, and form more excellent draw bail.Each technical characteristic in the utility model, can combination of interactions under the prerequisite of not conflicting conflict.

Please refer to Fig. 1 to Fig. 3, the utility model self-cleaning filter comprises shell 10, filters disc 20, coarse strainer 30, fie screen 40, dirt sucking tube 50, driver element 60, magnetic valve 70, centrifugal pan and temperature sensor.

Shell 10 has the filter chamber 11 and blowdown chamber 12 that are isolated from each other, and described filter chamber 11 extends water inlet 13 and a delivery port 14, and a sewage draining exit 15 is extended in described blowdown chamber 12; Filter disc 20 to be placed in described filter chamber 11, and described filter chamber 11 is divided into coarse filtration chamber 11a and fine filtering chamber 11b, described coarse filtration chamber 11a communicates with described water inlet 13, and described fine filtering chamber 11b communicates with described delivery port 14; Coarse strainer 30 is placed in described coarse filtration chamber 11a, and fie screen 40 is placed in described fine filtering chamber 11b.Described shell 10 is preferably to be made up in the mode of injection mo(u)lding of ABS or nylon engineering plastic, can reduce material and manufacturing cost, and acid-alkali-corrosive-resisting, and impact resistance is strong.But in various embodiments, shell 10 also can be made up of metal or other on-macromolecular materials, to have higher rigidity.

Dirt sucking tube 50 is worn to fine filtering chamber 11b from described blowdown chamber 12, extends multiple suction nozzle 51 arranged in divergent shape, be provided with intercommunicating pore 52 in the part in described blowdown chamber 12 in the part of described fine filtering chamber 11b.Driver element 60 rotates for driving described dirt sucking tube 50, and driver element 60 comprises motor 61, described motor 61 by mechanical driving by power transmission to dirt sucking tube 50, mechanical driving can be worm and gear assembly, also can be bevel gear set part.

Magnetic valve 70 is placed in described sewage draining exit 15 place, for the keying of control of sewage disposal mouth 15; Differential pressure pickup (not drawing) is for detecting the pressure reduction in outside in described fie screen, and it is placed in the outer surface of shell 10; Controller (not drawing) its be electrically connected with described magnetic valve 70 and differential pressure pickup; when the pressure reduction that differential pressure pickup collects the surfaces externally and internally of fie screen 40 exceedes predetermined value; controller just sends OPEN to magnetic valve 70; now filter just enters blowdown, cleaning state; when rinsing, filter does not need to shut down, be interrupted and supply water; local pressure very little between suction nozzle 51 and fie screen 40 changes, and the water yield consumed when rinsing is little, does not thus affect normal water supply.

In the bottom of the coarse filtration chamber 11a of self-cleaning filter with centrifugal pan, current can be made to produce vortex, form centrifugal force, solid particle can be allowed like this away from filtration disc 20, be gathered in filter top, reduce over filter cleaning frequency, improve the efficiency of cleaning simultaneously.

All temperature sensor is provided with at described water inlet 13 and delivery port 14 place, described temperature sensor is electrically connected with described controller, after having cleaned, temperature sensor detects the temperature difference of the front air compressor machine Inlet and outlet water of this cleaning and the air compressor machine Inlet and outlet water temperature difference after cleaning, and by the Effect value that display screen display is cleaned, and then realize the control of comprehensive automatically cleaning.

The course of work of self-cleaning filter is: cooling water is entered by water inlet 13, first filters the impurity of larger particles through coarse strainer 30, then arrives fine filtering chamber 11b by filtering disc 20.In the filter process of fie screen 40, fie screen 40 builds up foul, impurity in water, forms impurity screening layer, because impurity layer is deposited in the inner side of fie screen, therefore just defines a pressure reduction in the inside and outside both sides of fie screen.When this pressure reduction reaches preset value, differential pressure pickup outputs signal to controller, and controller sends the control instruction opened to magnetic valve 70, and blowoff electromagnetic valve 70 is opened, and water is also discharged by release pressure, continues to flow around here; While release sewage, driver element 60 drives suction nozzle 51 to rotate, produce one by suction nozzle 51 in outer end thus and rotate soil pick-up process, gradually sewage is discharged, the inner surface of whole fie screen can clean up by the combination of rotary motion and many suction nozzles 51 completely, and whole flushing process only needed for about 10 seconds.Blowdown motor-driven valve 70 cuts out at the end of flushing, and filter starts to prepare next flushing cycle, and the water purification after filtration is flowed out by delivery port 14.

More than that better enforcement of the present utility model is illustrated, but the utility model is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite without prejudice to the utility model spirit, and these equivalent distortion or replacement are all included in the application's claim limited range.

Claims

1. a self-cleaning filter, is characterized in that, comprising:

Shell, have the filter chamber and blowdown chamber that are isolated from each other, described filter chamber extends a water inlet and a delivery port, and a sewage draining exit is extended in described blowdown chamber;

Filter disc, be placed in described filter chamber, and described filter chamber is divided into coarse filtration chamber and fine filtering chamber, described coarse filtration chamber communicates with described water inlet, and described fine filtering chamber communicates with described delivery port;

Coarse strainer, is placed in described coarse filtration chamber;

Fie screen, is placed in described fine filtering chamber;

Dirt sucking tube, wears to fine filtering chamber from described blowdown chamber, extends multiple suction nozzle arranged in divergent shape, be provided with intercommunicating pore in the part in described blowdown chamber in the part in described fine filtering chamber;

Driver element, rotates for driving described dirt sucking tube;

Magnetic valve, is placed in described sewage draining exit place, for the keying of control of sewage disposal mouth;

Differential pressure pickup, for detecting the pressure reduction in outside in described fie screen; And

Controller, it is electrically connected with described magnetic valve and differential pressure pickup.

2. self-cleaning filter as claimed in claim 1, is characterized in that: described driver element comprises motor, described motor by mechanical driving by power transmission to dirt sucking tube.

3. self-cleaning filter as claimed in claim 2, is characterized in that: described mechanical driving is worm and gear assembly.

4. self-cleaning filter as claimed in claim 2, is characterized in that: described mechanical driving is helical gear assembly.

5. self-cleaning filter as claimed in claim 1, is characterized in that: the material of described shell is ABS or nylon engineering plastic.

6. self-cleaning filter as claimed in claim 1, is characterized in that: the bottom in described coarse filtration chamber is provided with the centrifugal pan for making current produce whirlpool.

7. self-cleaning filter according to claim 1, is characterized in that: be all provided with temperature sensor at described water inlet and water outlet, and described temperature sensor is electrically connected with described controller.