CN2774615Y - Double stage intelligent control differential pressure filter - Google Patents

Abstract

The utility model discloses a double-stage intelligence-control differential pressure filtering machine, which comprises a machine body, and a water inlet and a water outlet which are provided by the machine body, wherein the center in the machine body is axially provided with a waste drainage pipe which is provided with a suction mouth in the radial direction; one end of the waste drainage pipe is connected with a speed reduction machine assembly arranged on the outer side of the machine body by a transmission control device, and the other end is led into a waste drainage chamber with a waste drainage opening; a water drainage hole is axially arranged on the waste drainage pipe arranged on the led end; the transmission control device is provided with a flange sleeve, and a sliding block is arranged in the transmission control device and connected with a transmission screw rod; one end of the transmission screw rod is inserted into the waste drainage pipe arranged on the sliding block; a spacing pin is arranged on the sliding block and arranged between two contacts of a spacing switch which are symmetrically arranged in the position of an opening of the flange sleeve; the waste drainage hole is arranged on the waste drainage pipe on the led end. In the state of operation, the waste drainage pipe moves to the inner side of a Y-shaped sealing ring arranged on one end cover of the machine body, and the stroke is the same as the distance from the spacing pin to the contacts of the spacing switch. The utility model has the advantages of simple structure, and stable and reliable operation of a system, and furthermore, the utility model is the ideal filtering device at present.

Description

Double-stage intelligent control differential filter machine

Technical field

The utility model relates to a kind of water treatment filtering separation device that is used for, and is a kind of double-stage intelligent control differential filter machine specifically.

Background technology

In the face of shortage of water resources and water pollution problem, application for the water treatment filtering separation device, demand as fields such as advanced treatment of wastewater, middle water reuse, recirculated cooling water filtration, the purifications of productive life water is urgent day by day, and its requirement of handling quality is also more and more higher.Differential filter as the existing market sale, mainly comprise body and the sewage inlet that is provided with thereof and water purification delivery port, the center position of its body one side is established a reducing motor, is a blow-off pipe when what be installed in the internal body concentric, is distributed with suction nozzle on it; The other end of this blow-off pipe is extended out in the blowdown chamber of opposite side of body.Be provided with mudhole on the blowdown caliber of its end of extending, its axial end is provided with the sewage water discharge mouth that has on an axial blowoff valve and the corresponding blowdown chamber and directly seals or open.Above-mentioned technology of giving has solved similar technology and has adopted magnetic valve to control automatically, has investment greatly, complex structure, the defective that fault rate is high.But also having some problems, is to rely on the displacement of blow-off pipe with respect to sewage draining exit as this blowoff valve, and it is opened or closed, and sewage draining exit is to be positioned at axial centre position, blowdown chamber, therefore, during sewage effluent, need then to discharge by the center sewage draining exit by the blowdown chamber.On the one hand, this blowdown control valve is worked in water body for a long time, easily causes the malfunctioning appearance of valve body to leak; On the other hand, the sealing property and the cleaning problem of easy sewage deposition affects valve body in the blowdown chamber.In addition, the axial displacement of blow-off pipe is that the nut that is provided with in leading screw and the body by the setting of one end cooperates, and at this leading screw end a dial is set, and cooperates control device of composition with the shift fork that transmission one end is provided with.Its problem is, this cover control device is mounted in the body of sewage inlet one side, and be in the sewage environment equally can to its operation flexibility can and the processing quality of sewage direct influence be arranged.

The utility model content

The purpose of this utility model is for addressing the above problem, and provides a kind of reliable working performance, the double-stage intelligent control differential filter machine of long service life.

For achieving the above object, technical solution of the present utility model is finished like this: a kind of double-stage intelligent control differential filter machine, comprise body and be provided with water inlet and delivery port, central shaft is to a blow-off pipe that radially has a suction nozzle is set in this body, its blow-off pipe one end by transmission control device be installed in body outside reductor assembly and be connected, the other end blowdown that has sewage draining exit outside body of extending is indoor; Radially be provided with mudhole at the blow-off pipe that is positioned at the blowdown chamber, wherein said transmission control device has a flange cover, be installed on the body outside one end, establish a slide block in it, be connected with drive screw by establishing screw thread in the slide block, a this drive screw wherein end inserts in the blow-off pipe that is installed on the slide block, establishes a spacer pin on this slide block and is installed between the symmetrically arranged limit switch of flange cover opening part two contacts; Therefore, this transmission control device is not to work in the water body in body, thereby has effectively guaranteed the reliability and the flexibility of its service behaviour, has prolonged the service life of complete machine.The described blowdown chamber mudhole that end is provided with on the blow-off pipe of extending that is positioned under the running status, is displaced to body end cap y-type seal ring inboard, and the trip is same as the distance of spacer pin to the limit switch contact.Only in this way could guarantee the sealing that it is good, effectively substitute the effect of blowoff valve.

As mentioned above, in this body, be provided with thick, fie screen, form soil chamber and water-purifying cavity.

As mentioned above, be provided with between this water-purifying cavity fie screen and the body and divide meshed recoil cask washing on it, on the body at this place, be provided with backwashing pump, be communicated with the body water-purifying cavity by backwash water inlet pipe and backwash outlet pipe.

Double-stage intelligent control differential filter machine of the present utility model because of the transmission control device of blow-off pipe has adopted outer setting, does not contact with current, effectively improved the flexibility of blow-off pipe and has prolonged service life; Dictyosome adopts thick, thin twice to filter dictyosome, and its material is knotted for the 316L stainless steel is roasting, and filtering accuracy reaches as high as 2 microns, and application is extensive.In addition, the blowdown apparatus of this filter is to utilize an end of blow-off pipe to offer mudhole, during operation, the pipeline section that has mudhole retreats in the dictyosome of body end cap, when the impurity that is trapped when filter screen stops up to a certain degree, control system reductor assembly drives blow-off pipe and enters the blowdown chamber, the beginning automatic pollution discharge.At this moment, the high pressure backwashing pump is worked simultaneously, the recoil fie screen, and interior suction, outwash are carried out simultaneously, make dictyosome recover the initialization performance.Therefore, this filter has been cancelled the blowdown valve body, simplifies the structure, and has improved the unfailing performance of using, and makes system's operation more stable.In addition, the outlet of blowdown chamber is located at bottom, does not have stagnant water and impurity in it.

Description of drawings

Fig. 1 is this novel structure chart.

Fig. 2 is the structure enlarged drawing of Fig. 1 transmission control device.

The specific embodiment

Below in conjunction with accompanying drawing embodiment, to this novel being described further.

By double-stage intelligent control differential filter machine shown in Figure 1, this body 3 is made by seamless steel pipe.The below of body 3 is welded with water inlet 1 and delivery port 5, and interface shape is flange and connects.The installation pressure difference transmitter interface 2 and 6 that reserves respectively on entery and delivery port 1 and 5 is used to connect pressure difference transmitter.The body two ends are the end cap 18 that can freely dismantle, are connected with body 3 with hex bolts.The upper fixed of this body 3 is equipped with backwashing pump 13.The two ends that are positioned at backwashing pump 13 are respectively equipped with backwash water inlet pipe 12 and link to each other with filter delivery port 5; And the backwash water inlet 4 of welding links to each other on backwash outlet pipe 14 and the body 3.Be provided with the blowdown chamber 8 of evagination in the centre of a side end cap 18 of body 3, its interface shape is that flange connects.And 8 lower ends, blowdown chamber are welded with sewage draining exit 7.The position that these body 3 inside are positioned at water inlet 1 and delivery port 5 is separately installed with coarse strainer 17 and fie screen 15, makes body form soil chamber and water-purifying cavity.Wherein fie screen 15 adopts 316L stainless steel sintering net, and its screen distance minimum is 2 microns.Slightly, adopt the O RunddichtringO to seal between the fie screen 17 and 15.For preventing that two dictyosomes from scurrying water, and can utilize dictyosome two end cap 18 location.Between fie screen 15 outsides and body 3 inwalls, the recoil cask washing 10 that corrosion resistant plate is made is installed, is distributed with mesh on it, link into an integrated entity with body 3.This body is thick, fie screen 17 and 15 center are provided with a hollow blow-off pipe 11, its be positioned at fie screen 15 cavitys blow-off pipe 11 upper edges its be radially distributed with suction nozzle 9 and be communicated with it, in order to the impurity of holding back in the absorption fie screen 15.One end of this blow-off pipe 11 passes end cap 18 sealings place and extends in the blowdown chamber 8.Radially be provided with mudhole 20 in these blow-off pipe 11 terminal fragment position.And passing 18 sealings place of body end cap equally, the other end of blow-off pipe 11 extends out.At this position of extending out the transmission control device that connects a peripheral hardware is installed and is connected to reductor assembly 19.This reductor speed ratio is 23: 1, and power of motor is 370W.Drive not only rotatable but also displacement vertically of transmission control devices control blow-off pipe 11 by reductor assembly 19, thereby guarantee not stay ground, dead angle to absorb impurity trapped on the fie screen by suction nozzle 9, by the blow-off pipe 11 of extending out and on mudhole 20 discharge.Under the running status, blow-off pipe 11 displacements retreat in the fie screen 15 at end cap 18Y RunddichtringO place mudhole 20 positions on it, utilize y-type seal ring to seal mudhole 20 rear portion pipeline sections automatically, finish a stroke.Thereby cancel valve and solved blowdown chamber sewage deposition problems.

As mentioned above, this filter also can not established back purge system, and can save recoil cask washing, backwash inlet tube and outlet tube.

Fig. 2 has provided the structure I zoomed-in view of transmission control device.This transmission control device has a flange cover 27, links to each other with body end cap 18 by hex bolts.One slide block 25 that has a built-in screw thread is set in this method cover 27, in this slide block 25 drive screw 21 that has one section screw thread is installed, drive screw 21 1 ends are connected in the speed reducer output shaft 24 that is fixed on the flange cover 27, and the other end adopts the flat key formula to insert in the blow-off pipe 11 with it in the slotted eye of corresponding matching, not only controls the rotation of blow-off pipe 11 but also blow-off pipe is slided thereon.Hard iron is turned round in 21 transmission of this drive screw, can not displacement.Be to guarantee the axial displacement of blow-off pipe 11, and blow-off pipe 11 1 ends are installed in the slot that slide block 25 has do movingly, blow-off pipe both can be rotated in slide block, can move axially with slide block again.When drive screw 21 rotates, make its slide block 25 do axial displacement along drive screw 21.Accurate for controlling travel displacement, and on slide block 25, be provided with spacer pin 22, overlap symmetrically arranged limit switch 23 installations of 27 opening parts with flange and cooperate.And by 23 liang of contact control slide blocks 25 of limit switch and blow-off pipe 11 strokes.

This novel blowdown apparatus is meant and is positioned at the mudhole of extending and be provided with on the blow-off pipe 11 of end in blowdown chamber 8 20.The position is set should displacement retreats to y-type seal ring inboard in the body end cap 18 when filter normally moves of this hole, stroke is same as the distance of spacer pin 22 to limit switch 23 contacts.So just can make its mudhole 20 be positioned at y-type seal ring 26 inboards at end cap 18 places, play the effect of valve.

This filter operation principle: in normal operation, former water enters fie screen 15 inside by water inlet 1 by coarse strainer 17, filters by fie screen 15, discharges water purification from delivery port 5.When above-mentioned duty deposits because of fie screen impurity occurring, stop up, cause into, when delivery port 1 and 5 pressure differences increase, by the pressure difference transmitter on it, convert pressure difference signal to the 4-20mA current signal, pass to secondary meter, reach on the preset value and prescribe a time limit, secondary meter starts, make motor reducer, backwashing pump enters duty simultaneously, reductor drives transmission control device, drives blow-off pipe and does rotation and axially-movable, absorbs thin impurity of considering on the net 15 by suction nozzle, when the mudhole on the blow-off pipe 20 is displaced to blowdown chamber 8, impurity sewage is discharged by sewage draining exit 7; Inlet outlet pressure differential returns to setting value down in limited time, drainage and backwashing pump quit work, and mudhole is got back to the running status position, finish a working cycles, blowdown does not influence normal product water simultaneously, and pressure differential range can be regulated arbitrarily according to concrete water quality and practical situations.

Above-mentioned related pressure difference transmitter and secondary meter are the shaped articles of being bought by market.

Claims (3)

1, a kind of double-stage intelligent control differential filter machine, comprise body and be provided with water inlet and delivery port, central shaft is to a blow-off pipe that radially has a suction nozzle is set in this body, its blow-off pipe one end by transmission control device be installed in body outside reductor assembly and be connected, the other end blowdown that has sewage draining exit outside body of extending is indoor; Blow-off pipe at the end of extending radially is provided with mudhole, it is characterized in that described transmission control device has a flange cover (27), establish a slide block (25) in it, be connected with drive screw (21) by establishing screw thread in the slide block (25), this drive screw (a 21) wherein end inserts in the blow-off pipe (11) that is installed on the slide block (25), establishes a spacer pin (22) on this slide block (25) and is installed between the symmetrically arranged limit switch of flange cover opening part (23) two contacts; The described end blow-off pipe (11) of extending is gone up the mudhole (20) that is provided with, and under the running status, is displaced to body end cap y-type seal ring inboard, and the trip is same as spacer pin (22) to limit switch (23) contact distance.

2,, it is characterized in that in described body (8), being provided with thick, fie screen (17,15) and form soil chamber and water-purifying cavity respectively by the described double-stage intelligent control differential filter of claim 1 machine.

3, by the described double-stage intelligent control differential filter of claim 2 machine, it is characterized in that between described fie screen (15) and body (3), being provided with the meshed recoil cask washing (10) that distributes on it, on the body (3) at this place, be provided with backwashing pump (13), be communicated with body (3) water-purifying cavity by backwash water inlet pipe (12) and backwash outlet pipe (14).

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