The utility model content:
In order to overcome above-mentioned drawback, the utility model provides a kind of high pressure self-cleaning air filter, can handle compressed air, and filter core is had automatic cleaning function, reduces resistance greatly, and operating cost is low and convenience is overhauled, maintenance.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of high pressure self-cleaning air filter, comprise two circular tower bodies that are symmetrical set, circular tower body connects the air inlet branch road respectively and the branch road of giving vent to anger, the air inlet branch road branch road that links to each other, gives vent to anger with admission line links to each other with outlet pipe, the air inlet branch road is provided with air intake control valve, and the branch road of giving vent to anger is provided with outgassing nonreturn valve;
It is characterized in that described circular tower body bottom is provided with the blowdown branch road, be provided with service valve, blowoff valve on the blowdown branch road successively, the blowdown branch road leads to stillpot.
Preferably, described circular tower body is provided with the self-cleaning system of blowback, the self-cleaning system of described blowback is made up of air supply system, incremental self-cleaning system, and air supply system is linked in sequence by cylinder, air entraining pipe, pulse valve, anti-blowpipe and forms, and anti-blowpipe is provided with the blowback nozzle; Anti-blowpipe one end penetrate that circular tower body is connected with pulse valve and with circular tower body welded seal; Incremental self-cleaning system is linked in sequence by Venturi, dividing plate, cartridge filter and forms, and Venturi is fixed on above the dividing plate, and cartridge filter is fixed on below the dividing plate, and dividing plate is welded on the circular tower body lumen wall.
Preferably, on the described circular tower body pressure transmitter and differential pressure transmitter are installed, the height pressure sample tap of differential pressure transmitter is connected with the lower cavity and the upper chamber of dividing plate respectively.
Preferably, described circular tower body is for can bear the pressure vessel of 0.1MPa with upward pressure.
Preferably, described blowback nozzle is directly over the axis of spindle of Venturi.
Preferably, adopt the shell flange sealing respectively bottom the described circular tower body.
Preferably, described Venturi is the Venturi that aluminum alloy materials is made.
Preferably, described cartridge filter is an air filtration cartridge.
Preferably, described air intake control valve, outgassing nonreturn valve, service valve, blowoff valve, pulse valve are butterfly valve or ball valve.
In the utility model, circular tower body periodic duty is carried out filtration treatment to compressed air incessantly.The concrete course of work is as follows:
Order one: left tower filters, right tower emptying.
The compressed air that needs to handle enters into left tower by admission line and the control of left branch road air intake control valve, carry out filtration treatment by cartridge filter, compressed air after the filtration compiles the top chamber that enters dividing plate by dividing plate, Venturi, sends equipment through left branch road outgassing nonreturn valve; The compressed air of right tower enters stillpot by right service valve, right blowoff valve through right blowdown branch road, reduces to atmospheric pressure until the tower internal pressure, and right blowoff valve cuts out.
Order two: left tower filters, and right tower blowback is self-cleaning.
When right tower emptying finishes, right pulse valve is opened successively, by right air entraining pipe the clean gas of 0.6~0.8MPa in the right cylinder is discharged by the nozzle on the anti-blowpipe, form gas jet at jet expansion, air under the jet state advances the supercharging of Venturi plume, pressure moment in the cartridge filter increases to about 1.0MPa, makes the dust and the solid particle that are attached to the cartridge filter surface be subjected to instantaneous immense pressure and break away from the surface, and filter core recovers strainability.By programme-control, recover filter capacity substantially until cartridge filter after the blowback in turn several times, blowback is self-cleaning to be finished.
Order three: left tower filters, right tower dedusting blowdown.
When self-cleaning the finishing of right tower blowback, right air intake control valve is opened, and right tower begins to boost, rise to a roof pressure power after, right air intake control valve is closed, right blowoff valve is opened, and the dust that is collected in the bottom is flowed by air take out of in the tower body, enters stillpot.When pressure is reduced to normal pressure, right blowoff valve cuts out, and right air intake control valve is opened, and right tower begins to boost, and near left pressure tower, right air intake control valve is closed until pressure.
When right tower filtered, corresponding left and right sides control valve was exchanged jobs when filtering with left tower, to finish self-cleaning and process blowdown.
As preferably, the dried and clean air that the source of the gas of described left and right sides cylinder was handled by other equipment for after-treatments is introduced, and to increase self-cleaning effect, improves the GAS QUALITY of equipment simultaneously.
As preferably, the gas outlet of described left and right sides blowoff valve is placed on stillpot.The stillpot exhaust can reduce exhaust noise, reaching corresponding criteria for noise, and can bear entering of a large amount of dusts of short time.
As preferably, the bottom of described circular tower body is provided with flue-dust retainer, with collection and the discharging that makes things convenient for dust.
The beneficial effects of the utility model are, it is big to have solved the existing in prior technology resistance, and filter core, filter paper loss are fast, the shortcoming that operation expense is high.
The specific embodiment:
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: a kind of high pressure self-cleaning air filter, comprise two circular tower bodies 6 that are symmetrical set, circular tower body connects the air inlet branch road respectively and the branch road of giving vent to anger, the air inlet branch road branch road that links to each other, gives vent to anger with admission line links to each other with outlet pipe, the air inlet branch road is provided with air intake control valve 1, and the branch road of giving vent to anger is provided with outgassing nonreturn valve 5; Described circular tower body 6 bottoms are provided with the blowdown branch road, are provided with service valve 3, blowoff valve 4 on the blowdown branch road successively, and the blowdown branch road leads to stillpot 2.Described circular tower body 6 is provided with the self-cleaning system of blowback, the self-cleaning system of described blowback is made up of air supply system, incremental self-cleaning system, air supply system is linked in sequence and is formed by cylinder 7, air entraining pipe 8, pulse valve 9, anti-blowpipe 10, and anti-blowpipe 10 is provided with blowback nozzle 11; Anti-blowpipe 10 1 ends penetrate that circular tower body 6 is connected with pulse valve 9 and with circular tower body 6 welded seals; Incremental self-cleaning system is linked in sequence and is formed by Venturi 12, dividing plate 13, cartridge filter 14, and Venturi 12 is fixed on above the dividing plate 13, and cartridge filter 14 is fixed on below the dividing plate 13, and dividing plate 13 is welded on the circular tower body 6 chamber walls.Pressure transmitter 15 and differential pressure transmitter 16 are installed on the described circular tower body 6, and the height pressure sample tap of differential pressure transmitter 16 is connected with the lower cavity and the upper chamber of dividing plate 13 respectively.Described circular tower body 6 is for can bear the pressure vessel of 0.1MPa with upward pressure.Described blowback nozzle 11 is directly over the axis of spindle of Venturi 12.Described circular tower body 6 bottoms are adopted shell flange 17 sealings respectively.The Venturi 12 that described Venturi 12 is made for aluminum alloy materials.Described cartridge filter 14 is an air filtration cartridge.Described air intake control valve 1, outgassing nonreturn valve 5, service valve 3, blowoff valve 4, pulse valve 9 are butterfly valve or ball valve.
Power drive can be adopted motorized motions or pneumatic actuation.The model scale of above-mentioned parts can design definite according to compressed-air actuated flow, temperature, Dust Capacity and filtering accuracy.
To sum up, the utlity model has simple in structure, noise is little, it is big to solve filtration resistance, filter core, filter paper loss are fast, the problem that operation expense is high, and easy to operate a kind of high pressure self-cleaning air filter.
Specific embodiment described herein only is that the utility model is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.