CN202860238U - Motor-driven horizontal double-stage self-cleaning screen filter - Google Patents

Abstract

The utility model discloses a motor-driven horizontal double-stage self-cleaning net filter. The horizontal filter tank is separated into a coarse filter tank and a fine filter tank by a partition, and water inlets are respectively arranged on the coarse filter tank and the fine filter tank. and the water outlet, the coarse and fine filter tanks are respectively provided with a cylindrical coarse filter and a fine filter, and the two ends of the coarse filter are respectively connected with the end wall and the partition in the coarse filter, The inner port of the sewage pipe set on the axis of the tank is connected with the fine filter tank, the outer port of the sewage pipe is connected with the sewage pipe, and a solenoid valve is installed on the sewage pipe. It is connected with the cover, and the rotating shaft driven by the motor extends into the fine filter screen. The sewage suction nozzles evenly distributed on the sewage suction pipe connected to the end of the rotating shaft cooperate with the cylindrical wall of the fine filter screen to absorb the waste water. The sewage pipe extends into the sewage delivery pipe. The utility model can realize the automatic cleaning of the filter, has less water demand and low water pressure during cleaning, shortens the cleaning time, does not affect the normal operation of the system, and saves investment.

Description

Motor-driven horizontal two-stage self-cleaning screen filter

technical field

The utility model belongs to the improvement of a water-saving irrigation water filter device, in particular to a motor-driven horizontal double-stage automatic cleaning net filter. the

Background technique

The development of water-saving irrigation in Xinjiang is advancing by leaps and bounds, especially the large-scale popularization of drip irrigation technology, especially the requirements for river water treatment are becoming more and more common. However, the river water in Xinjiang is a river with many sediments, and the water quality is generally poor. Single-stage automatic cleaning net type The filter has low treatment capacity for poor river water quality, so it is required to build a complete sedimentation tank and trash rack to improve the use effect of the filter. the

Contents of the invention

The purpose of this utility model is to provide an electric-driven horizontal double-stage self-cleaning mesh filter, which can realize the automatic cleaning of the filter, does not need to be equipped with special personnel, and only needs a small amount of water and low water pressure during cleaning. The time is short, the normal work of the system will not be affected during cleaning, and the high investment in the construction of the grit chamber can be saved. the

The purpose of this utility model is achieved in this way: a motor-driven horizontal double-stage self-cleaning screen filter, the horizontal filter tank is separated into a coarse filter tank and a fine filter tank by a partition, and the coarse filter tank and the fine filter tank A water inlet and a water outlet are respectively arranged on the tank wall of the tank, and a cylindrical coarse filter screen and a fine filter screen closed at both ends are arranged axially in the coarse filter tank and the fine filter screen, and the two ends of the cylindrical coarse filter screen are They are respectively connected with the end wall and partition in the coarse filter tank. The inner port of the sewage pipe arranged along the axis of the coarse filter tank is connected with the fine filter tank, and the outer port of the sewage pipe is connected with the sewage pipe located outside the tank. A solenoid valve is installed on the sewage pipe, and the two ends of the cylindrical fine filter are respectively connected with the separator of the fine filter tank and the cover of the tank body. into the fine filter, the end of the rotating shaft is connected to the sewage suction pipe, and the outer ends of the sewage suction nozzles evenly distributed on the sewage suction pipe match the cylindrical wall of the fine filter, and the sewage suction pipe passes through the The bearing extends into the sewage pipe of the coarse filter tank. the

The working principle of the utility model is: when the pressure water enters the filter cavity of the coarse filter from the water inlet, the impurities with larger particles will be intercepted by the coarse filter to ensure that the impurities in the water will not enter the second-stage fine filter tank. Block the suction nozzle. When the pressure water reaches the second-stage fine filter tank, the impurities are intercepted by the fine filter tank net, and the clean water is filtered by the filter net and then discharged from the water outlet. When the filter works for a certain stage or the water quality entering the filter chamber is poor, when there is more dirt attached to the inner wall of the filter screen, the amount of water filtered by the precision filter screen decreases, so that when a certain pressure difference is generated between the inner and outer chambers, the pressure will increase. The differential sensor starts, and the controller drives the deceleration motor and the solenoid valve to work at the same time. The deceleration motor drives the sewage suction pipe to rotate through the transmission shaft. Dirt, under the action of water pressure, the water entrained with dirt enters the sewage suction pipe, and is discharged through the sewage discharge pipe through the solenoid valve. When the dirt on the filter screen is exhausted and the pressure difference between the inner and outer chambers tends to be similar or equal, the geared motor stops working at this time. The working time and intermittent time of cleaning the filter screen of the utility model can be arbitrarily set through the controller panel. The utility model realizes automatic cleaning of the filter with a high degree of automation, does not need to be equipped with special personnel, only needs a small amount of water and low water pressure during cleaning, and the cleaning time is short, and the normal operation of the system is not affected during cleaning. When the filter is being cleaned, the normal water supply is uninterrupted, and the self-cleaning time only needs 20-40 seconds, which has no effect on the normal water supply. The control method can be diversified, and the electric control panel can meet various requirements: the pressure difference or time can be controlled for cleaning, and it can also be cleaned continuously. When the pressure suddenly rises to a dangerous pressure, the filter drain valve will automatically open. Pressure relief to protect the safety of the system. The utility model realizes the automatic cleaning of the filter, does not need to be equipped with a special person, only needs a small amount of water and a low water pressure during cleaning, the cleaning time is short, and the normal operation of the system is not affected during the cleaning, and the construction of the grit chamber is saved. high investment. the

Description of drawings

The utility model will be further described below in conjunction with the accompanying drawings, and Fig. 1 is a structural representation of the utility model. the

Detailed ways

A horizontal two-stage self-cleaning screen filter driven by a motor, as shown in Figure 1, the horizontal filter tank is divided into a coarse filter tank 2 and a fine filter tank 4 by a partition 18, and the coarse and fine filter tank 2 Water inlet 1 and water outlet 3 are respectively provided with on the tank wall of , 4, and the cylindrical coarse filter screen 20 and fine filter screen 17 that both ends are closed axially are respectively arranged in coarse and fine filter tank 2,4, wherein The two ends of the cylindrical coarse filter screen 20 are respectively connected with the end wall and the dividing plate 18 in the coarse filter tank 2, and the sewage pipe 19 which is arranged along the axis of the coarse filter tank is communicated with the fine filter tank 4 at its inner port, and the dirt is transported The outer port of the pipe 19 is connected with the blowdown pipe 21 positioned outside the tank, and the solenoid valve 22 is installed on the blowdown pipe 21. The cover is connected, and the rotating shaft 14 driven by the motor 5 through the reducer 10 extends into the fine filter screen 17 through the bearing provided by the tank body cover. Its outer end of the dirt suction nozzle 15 that cloth is provided matches with the cylinder wall of the fine filter screen 17, and the dirt suction pipe 16 stretches in the sewage delivery pipe 19 of the coarse filter tank 2 by the bearing on the dividing plate. The rotating shaft 14 outside the fine filter tank 4 is connected with a screw 13, the screw 13 is matched with the nut 12 installed through the support, the right end of the screw 13 is connected with the transmission shaft 6 with the axial guide groove 11, the transmission shaft 6 is connected with the deceleration The shaft hole of the hollow output shaft of the machine 10 is dynamically matched, and a guide keyway 11 is arranged on the inner wall of the shaft hole of the hollow output shaft. The transmission shaft 6 upper end of the speed reducer 10 is fixed to the positioning disc 9, and the positioning disc 9 cooperates with the upper and lower limit switches 7,8 fixed on the vertical rod on the top of the speed reducer 10. When the motor drives the drive shaft to rotate, the screw section of the drive shaft cooperates with the fixed nut on the support seat to push the drive shaft forward, and the guide keyway section of the drive shaft is restrained by the guide key in the center hole of the geared motor rotor. Sliding forward in the transmission, so that the suction nozzle of the hollow sewage suction pipe moves forward while rotating; when the contact disk of the transmission shaft moving forward in the transmission touches the limiter on the geared motor, the controller controls the deceleration The motor reverses, and the nut is fixed on the support seat so that the transmission shaft drives the sewage suction pipe backward. When the contact plate on the backward transmission shaft touches the limiter on the lower side of the motor, the motor rotates forward and automatically reciprocates. A pressure sensor 23 and a differential pressure sensor 24 are respectively arranged on the tank bodies of the coarse and fine filter tanks 2 and 4 . Coarse strainer 20 is made of 2 layers of 5-20 purpose stainless steel filter screens. Fine filter screen 17 is made of 4-5 layers of 40-150 purpose stainless steel filter screen. the

Claims (5)

1. motor-driven Horizontal two-stage automatic cleaning screen filter, it is characterized in that: be separated into coarse filtration tank (2) and smart filter tank (4) by dividing plate (18) in the Horizontal-type filtering tank, slightly, smart filter tank (2,4) be respectively arranged with water inlet (1) and delivery port (3) on the tank skin, slightly, smart filter tank (2, cylindrical shape coarse strainer (20) and the smart filter screen (17) of closed at both ends axially are being set respectively 4), wherein the two ends of cylindrical shape coarse strainer (20) respectively with coarse filtration tank (2) in end wall be connected with dividing plate (18), defeated dirty pipe (19) its inner end mouth that arranges along coarse filtration tank axis is communicated with smart filter tank (4), the external port of defeated dirty pipe (19) is connecting the blow-off pipe (21) that is positioned at outside the tank body, at blow-off pipe (21) magnetic valve (22) is installed, the two ends of the smart filter screen of cylindrical shape (17) are connected with tank seal cover with the dividing plate (18) of smart filter tank (4) respectively, stretched in the smart filter screen (17) through the rotating shaft (14) of reductor (10) the transmission bearing by the tank seal cover setting by motor (5), the end of rotating shaft (14) is connecting dirt sucking tube (16), match with the cylindrical wall of smart filter screen (17) in its outer end of pollution-absorbing nozzle (15) in the upper uniform setting of dirt sucking tube (16), dirt sucking tube (16) extend in the defeated dirty pipe (19) of coarse filtration tank (2) by the bearing on the dividing plate.

2. motor-driven Horizontal two-stage automatic cleaning screen filter according to claim 1, it is characterized in that: be positioned in the outer rotating shaft (14) of smart filter tank (4) and connecting screw rod (13), screw rod (13) matches with the nut (12) of installing by bearing, the right-hand member of screw rod (13) is connecting the power transmission shaft (6) with axially directed groove (11), the axis hole of power transmission shaft (6) and reductor (10) hollow output shaft movingly, shaft hole inner wall in hollow output shaft is arranging guide key groove (11), feather key matches with guide key groove (11) on power transmission shaft (6) and the hollow output shaft axis hole wall simultaneously, affixed the positioning disk (9) in the power transmission shaft that stretches out reductor (10) (6) upper end, positioning disk (9) be packed in upper in reductor (10) the top vertical rod, lower position switch (7,8) match.

3. motor-driven Horizontal two-stage automatic cleaning screen filter according to claim 1 is characterized in that: pressure sensor (23) and differential pressure pickup (24) are being set respectively on the tank body of thick, smart filter tank (2,4).

4. motor-driven Horizontal two-stage automatic cleaning screen filter according to claim 1, it is characterized in that: coarse strainer (20) is made of 2 layer of 5-20 purpose stainless steel filtering net.

5. motor-driven Horizontal two-stage automatic cleaning screen filter according to claim 1, it is characterized in that: smart filter screen (17) is made of 4-5 layer of 40-150 purpose stainless steel filtering net.

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