Utility model content
The purpose of this utility model is to provide a kind of rotary wind type hydro powered twin-stage automatic cleaning screen filter, can realize filter and automatically clean, not need to be equipped with special messenger, when cleaning, only need little water yield, scavenging period is short, and does not affect the normal work of system while cleaning.
The purpose of this utility model is achieved in that a kind of rotary wind type hydro powered twin-stage automatic cleaning screen filter, its outlet of horizontal tank body that side is provided with water inlet is connecting the inlet tube of vertical tank body lower part by flange, the horizontal cylinder shape coarse strainer that connects water inlet is installed in horizontal tank body, in vertical tank body, diaphragm plate is being set, vertical and cylindrical essence filter screen is installed in the vertical tank body above diaphragm plate, this tank body is divided into filter chamber and water-supplying chamber, on the vertical tank body of water-supplying chamber, delivery port is being set, the compound drainage pipe device of hydro powered is installed by bearing in filter chamber, in the blow-off pipe of this device, be fixedly mounted with water inlet pipe, churning pipe uniform on water inlet pipe stretches out blow-off pipe, on blow-off pipe, the pollution-absorbing nozzle of uniform setting is corresponding one by one with churning pipe, pollution-absorbing nozzle matches with smart filter screen, below diaphragm plate, connecting decontamination chamber, the blow-off pipe stretching out from diaphragm plate below is positioned at decontamination chamber, the import of decontamination chamber bottom is connecting the import of water inlet pipe by flexible pipe, Compress Spring is installed in flexible pipe, in the import of decontamination chamber, water intaking valve is installed, stretch out on decontamination chamber's discharge pipe of vertical tank body inlet tube blowoff valve is installed.
The rear portion of the utility model water inlet in horizontal tank body is installed with cylindrical shape coarse strainer, the accurate filter screen of cylindrical shape is installed in vertical tank body, in accurate filter screen, blow-off pipe and the some water inlet pipes chewed with some soil pick-ups are installed, after the bright and clean drive bearing of mounting surface above blow-off pipe seals by sealing ring, stretch out filter outside.In the water inlet of horizontal tank body and the water outlet of vertical tank body, pressure sensor probe and differential pressure pickup probe are housed respectively.The vertical hydro powered twin-stage of the utility model rotor automatic cleaning screen filter, water for cleaning amount is few, scavenging period is short, does not affect the normal work of system when cleaning.
Operation principle of the present utility model is: when press water enters the filter chamber of coarse strainer of horizontal tank body from water inlet in, the impurity of larger particles is just tackled by coarse strainer, ensures to enter impurity in the filter chamber water of the second level vertical tank body essence filter screen and can not stop up soil pick-up and chew.When press water has arrived the filter of second level essence filter screen, impurity is just tackled by accurate filter screen, and clean water is discharged from delivery port after strainer filtering.When a stage of filter work or enter water quality in filter chamber when poor, on filter screen inwall, adhere to dirt when more, through the discharge reduction of accurate strainer filtering, while making inside and outside chamber produce certain pressure reduction, differential pressure pickup starts, and open water inlet pipe valve, current, by the band tubing (interior with Compress Spring) with retractility, connect water inlet pipe water inlet.Current produce a pair of moment turning clockwise from the ejection of hydraulic jet grouting pipe after entering water inlet pipe, and the blow-off pipe that drives some soil pick-ups to chew rotates, and soil pick-up is chewed silt is entered to blow-off pipe simultaneously, is got rid of by blowoff valve.Brute spring is pushed downwards by blow-off pipe gradually by relaxed state simultaneously, in the time that the force value of spring reaches bearing value, differential pressure pickup is to inlet valve signal, water intaking valve aperture is reduced, the water yield that hydraulic jet grouting pipe flows out reduces, spring receives that downward power reduces, spring has compressive state to return to the original length, the blow-off pipe that drives some soil pick-ups to chew like this moves upward, spring does not receive that downward pressure or downward pressure are very little time, differential pressure pickup allows water intaking valve standard-sized sheet again, sand discharge pipe is moved downward, so repeatedly until filter screen inside and outside differential pressure is equal, differential pressure pickup provides signal, water intaking valve is closed, clean and finish.When sewage draining valve is opened, because communicating with atmosphere, blowoff valve outlet the pressure reduction not forming between such filter interior hydraulic pressure and outside atmosphere can make soil pick-up chew generation strong suction; Simultaneously because each soil pick-up is chewed top and is had a churning pipe water spray, and it is less that soil pick-up is chewed aperture area, make like this screen pack inner surface soil pick-up chew the flow rate of water flow of opening annex very large, swiftly flowing current also can sweep away the silt that is stuck in filter screen inner surface to flow in soil pick-up chews, under the double action of strong suction and high-velocity flow, just can ensure that filter screen inner surface silt has little eliminating like this.Sand grain is discharged by blowoff valve after entering sand discharge pipe.Hydraulic jet grouting pipe produces clockwise moment, and drives blow-off pipe to rotate
The utility model has been realized automatic cleaning strainer hydrodynamic(al) automatic washing, does not need to be equipped with special messenger, only needs little water yield when cleaning, and scavenging period is short, and does not affect the normal work of system while cleaning.Filter is uninterrupted normal water supply in the time cleaning, and the self-cleaning time only needs 20-40 seconds, and normal water supply is not affected.Simultaneously can also be in the time that pressure be elevated to dangerous pressure suddenly, filter blowoff valve can be opened pressure release, the safety of protection system automatically.
Detailed description of the invention
A kind of rotary wind type hydro powered twin-stage automatic cleaning screen filter, as Fig. 1, shown in Fig. 2, horizontal tank body 3 its outlets that side is provided with water inlet 1 are connecting the inlet tube of vertical tank body 4 bottoms by flange, the horizontal cylinder shape coarse strainer 5 that connects water inlet 1 is installed in horizontal tank body 3, at the interior diaphragm plate 11 that arranging of vertical tank body 4, vertical and cylindrical essence filter screen 6 is installed in the vertical tank body 4 above diaphragm plate 11, this tank body is divided into filter chamber and water-supplying chamber, on the vertical tank body 4 of water-supplying chamber, delivery port 2 is being set, the compound drainage pipe device of hydro powered is installed by bearing in filter chamber, in the blow-off pipe 8 of this device, be fixedly mounted with water inlet pipe 10, churning pipe 9 uniform on water inlet pipe 10 stretches out blow-off pipe 8, the pollution-absorbing nozzle 7 of uniform setting on blow-off pipe 8 is corresponding one by one with churning pipe 9, pollution-absorbing nozzle 7 matches with smart filter screen 6, below diaphragm plate 11, connecting decontamination chamber 17, the blow-off pipe 8 stretching out from diaphragm plate 11 belows is positioned at decontamination chamber 17, the import of decontamination chamber 17 bottoms is connecting the import of water inlet pipe 10 by flexible pipe 16, Compress Spring 15 is installed in flexible pipe 16, water intaking valve 14 is installed in the import of decontamination chamber 17, stretch out on decontamination chamber's discharge pipe of vertical tank body inlet tube blowoff valve 13 is installed.Coarse strainer 5 is made up of 1-2 layer stainless steel filtering net.Essence filter screen 6 is made up of 3-6 layer stainless steel filtering net.Pollution-absorbing nozzle 7 is positioned at the below of churning pipe 9.Pressure sensor probe is installed in the water inlet of horizontal tank body 3.At the water outlet of vertical tank body 4, differential pressure pickup probe is installed.The rotating shaft that compound drainage pipe device top arranges matches with the bearing of installing on vertical tank body upper cover, and the protective sleeve 12 that sealing ring is housed is installed on bearing block.Horizontally disposed churning pipe 9 its exits are arranging the water jet 18 that is 90 ° of-120 ° of angles with churning pipe 9 on horizontal plane.