CN205461366U - Novel water filtration device - Google Patents

Abstract

The utility model provides a new type of water filtering device, which includes a cylinder body, upper and lower heads, water inlet and outlet pipes, sewage pipes, deflectors, confluence plates, diversion cylinders, sediment baffles, filter cartridges, differential pressure gauges, control systems and The driving mechanism for cleaning; by changing the structure of the water inlet pipe and the water outlet pipe, and setting the guide cylinder, the solid impurities are precipitated under the action of gravity, and the wedge-shaped filter screen successfully blocks small particles of fiber impurities, forming two filtration procedures; using the filter The mesh replaces the filter element, which saves the cost of use, and the wedge-shaped filter replaces the traditional filter, which effectively prevents the damage caused by the blockage of the filter, saves the cost and improves the filtering effect.

Description

A new type of water filtration device

technical field

The utility model patent relates to a filtering device, in particular to a novel water filtering device.

Background technique

The water filtration device is one of the main equipment for water quality pretreatment. According to the water quality, the corresponding design scheme is adopted to efficiently remove suspended solids, colloids, sediment, clay, humus, particulate matter and other impurities in the water body, and reduce water pollution. Turbidity, to achieve the purpose of water clarification. Water filtration devices are widely used in metallurgy, chemical industry, petroleum, papermaking, medicine, food, mining, electric power, and urban water supply fields. When the water filter device is working, the water to be filtered enters through the water inlet, flows through the filter screen, and enters the pipeline required by the user through the outlet for process circulation, and the particulate impurities in the water are trapped in the filter. With such a continuous cycle, more and more particles will be trapped, and the filtration speed will become slower and slower. However, the imported sewage will continue to enter, and the filter holes will become smaller and smaller, thus creating pressure between the inlet and outlet. Poor, when the pressure difference reaches the set value, the differential pressure transmitter transmits the electrical signal to the control system, and the control system starts the cleaning system device. When the cleaning is completed, the sewage outlet is opened, and the sewage containing a large amount of impurities is discharged from the sewage outlet. The system returns to the initial filtering state and enters the normal operation procedure.

There are two types of traditional filters, one is osmotic filtration, which is equipped with filter materials, such as quartz sand, activated carbon and fiber balls, etc.; the other is filter (canister) filtration, with special filter or filter cartridges After completing the filtration process, the filter element of its mechanism is its main water passing component.

The novel water filtering device belongs to screen filtering and does not involve permeable filtering.

In water containing many kinds of impurities, large particles of impurities can easily block the surface of the filter screen and hinder the cleaning of the filter screen. In practice, it is solved by increasing the pores of the filter screen or adopting multiple filtration methods. The former poses challenges to water equipment, and the latter increases production costs.

Therefore, it is necessary to make reasonable improvements to the existing technologies for the above-mentioned defects.

Utility model content

In view of the above defects, the utility model provides a new type of automatic cleaning water filtration device. The beneficial effect of the new type of water filtration device is: the filtration process is divided into two parts: gravity flow sedimentation and filter screen filtration. Gravity split flow sedimentation is mainly to remove large Particle impurities and impurities with a specific gravity slightly larger than water, the filter filter is mainly to remove suspended matter in the water. Under the application conditions of complex impurities in the water, the combination of the two solves the easy-to-produce filter failure and improves the quality of the water filter core. fine level.

The working principle of gravity split sedimentation is that the water inlet enters the filter device, diverts through the center to disperse around, accelerates downward along the guide tube, the water flow changes from slow to fast, and then enters the filter cartridge through the gap formed by the manifold and the lower edge of the guide tube On the outer surface of the manifold, the water flow forms a 180° direction change in the gap, and the large particles of impurities and impurities with a specific gravity greater than water enter the bottom of the manifold under the rent of their own inertial force, and continue to sink into the sediment barrier under the action of the water flow. Below the plate, the impurities under the sediment baffle will be sealed and discharged out of the cylinder when the system is cleaned.

The filter screen of the device adopts a wedge-shaped slit type, and the water surface is larger than the water-facing surface, and it is polished so that it is easy to clean without clogging. The slit should be determined according to the design water quality, and can be selected within the range of 0.035-3 mm.

The device can be applied to all water quality with complex impurity content, and it improves the filtration accuracy compared with other single filter devices of the same kind.

The device greatly saves the cost and improves the working efficiency.

The utility model adopts the following technical solutions:

A new type of water filtration device, including a cylinder, upper and lower heads, water inlet and outlet pipes, sewage pipes, deflectors, manifolds, deflectors, sediment baffles, filter cartridges, differential pressure gauges, control systems and driving mechanisms for cleaning ;

The cylinder body, upper and lower heads, differential pressure gauge and control system are the same as the traditional water filtration device. The difference is that the lower part of the water inlet is equipped with a deflector, and a deflector is installed along the inner edge of the cylinder. A manifold is installed below the manifold, and a sediment baffle is installed below the manifold. The cavity formed by the sediment baffle and the lower head forms a storage structure for sealing the particulate impurities entering the cavity.

The filter screen adopts a grid structure to form a strip-shaped filter gap, the outside is small and the inside is large into a wedge shape. The filter screen is designed as a cylindrical structure according to the needs. The filter cylinder is equipped with a cleaning mechanism. , The drive motor is designed on the top, and the labor brush rotates in the circumferential direction during cleaning conditions.

The water inlet pipe is set on the upper part of the cylinder, the outlet pipe is in the shape of "L", the vertical part is fixed in the center of the cylinder, and a small hole is drilled for water inlet, the top is positioned as the rotation center axis of the cleaning mechanism, and the horizontal part is set in the lower part of the cylinder.

The guide cylinder is arranged between the cylinder body and the cleaning mechanism, and is a longitudinal annular structure, which surrounds the outside of the filter screen, and is used to guide the water to filter impurities in solid form by gravity during the downward flow process;

Correspondingly, the water flows into the cavity of the cylinder body through the water inlet pipe. After the water flows into the cylinder body, under the guidance of the deflector, in the process of going down the flow channel, the impurities in the form of solids in the water sink to the bottom through the action of gravity. Store in the head and complete the first filtration process. After the first filtration process, the water flows out of the diversion cylinder and enters the space between the filter screen and the diversion cylinder. The water flows from the outside of the filter screen to the filter due to the pressure. The inner side of the screen, through the wedge-shaped structure of the filter screen, isolates small particles of fiber impurities to the outside of the filter screen, and completes the second filtering process. The water after the second filtering process flows into the horizontal pipe through the holes in the longitudinal pipe of the outlet pipe, thus Flow out of the water pipe, and install a differential pressure gauge at the water inlet and outlet.

The differential pressure gauge feeds back the monitoring results to the control system for comparison. When the pressure is unbalanced, the drive motor is controlled to drive the brush on the cleaning mechanism to clean the filter screen. The cleaned impurities are together with the impurities stored in the lower head. Discharged by the sewage pipe, thus completing the complete water filtration process.

Description of drawings

Below according to accompanying drawing, the utility model is described in further detail.

Fig. 1 is a schematic structural view of a novel water filtering device described in the embodiment of the present invention;

A in Figure 1 is an enlarged view of the filter screen structure;

Fig. 2 is a schematic diagram of a section of a filter screen of a novel water filter device described in the embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a novel water filtering device system described in the embodiment of the present invention;

In the figure: 1. cylinder; 2. upper head; 3. lower head; 4. support frame; 5. drive motor; 6. water inlet pipe; 7. water outlet pipe; 8. sewage pipe; 9. deflector ; 10, guide tube; 11, cleaning mechanism; 12, filter screen; 13, sediment baffle; 14, manifold; 15, differential pressure gauge; 16, control system N: water inflow direction; M: water outflow direction.

detailed description:

As shown in Figures 1, 2, and 3, a new type of water filtration device described in the utility model includes a cylinder body 1, an upper head 2, a lower head 3, an inlet pipe 6, an outlet pipe 7, a sewage pipe 8, Deflector 9, deflector cylinder 10, filter screen 12, sediment baffle 13, manifold 14, differential pressure gauge 15, control system 16;

The cylinder body 1 is the same as the traditional water filtering device, the upper part of which is fixed with the upper head 2 by the flange, the lower part is fixed with the lower head 3 by the flange, the outer side is fixed with the support frame 4, and it is connected with the control system 16; A drive motor 5 is installed above the upper head 2, and the cavity formed by the lower head 3 and the sediment baffle 13 arranged above it is a storage structure for storing filtered particulate matter, and the bottom thereof is connected to the sewage pipe 8;

The water inlet pipe 6 is located at the top of the cylinder body 1, and it is placed at the water inlet outside the cylinder body 1 to install a differential pressure gauge 13 for monitoring the pressure of water flowing into the cylinder body 1;

The outlet pipe 7 is "L"-shaped, its vertical part is located in the middle of the cylinder body 1, and small holes are arranged on the surface to facilitate the flow of water into the water outlet pipe 7, and its horizontal part is located at the lower part of the cylinder body 1, which is placed outside the cylinder body 1 A differential pressure gauge 13 is installed at the outlet of the water outlet to monitor the pressure of the water flowing out of the cylinder 1;

The cleaning mechanism 11 is located inside the cylinder body 1, and its middle part is sleeved on the upper part of the vertical pipe of the water outlet pipe 7, and the top is connected with the drive motor 5, and a brush is installed on it to clean the outer surface of the filter screen 12. The brush Compress it on the filter cartridge 12 with a spring in a strip shape, and take the central axis of the filter screen 12 as the center, and rotate along the circumferential direction under the drive of the drive motor 5;

The filter screen 12 adopts a grid structure to form a strip-shaped filter gap. According to the needs, it is designed as a cylindrical structure as a whole, closed up and down, installed inside the cleaning mechanism 11, and the bottom is fastened on the outlet pipe 7. The side where the water flows in is Wedge-shaped wide surface, used to filter small fiber impurities;

The deflector 9 is located between the top of the cleaning mechanism 11 and the bottom cross-section of the water inlet pipe 6, and is used to guide the flow of water entering the cylinder 1;

The guide cylinder 10 is arranged between the cylinder body 1 and the cleaning mechanism 11, and is a longitudinal annular structure, which surrounds the outside of the filter screen 12, and is used to guide the water to filter impurities in solid form by gravity during the downward flow process; A manifold 14 is installed below to flow the gravity-filtered water into the space between the filter screen 12 and the guide tube 10;

Correspondingly, the upper part of the guide tube 10 and the outer edge of the cleaning mechanism 11 are in an airtight state;

Correspondingly, the gap of the filter screen 12 is determined according to the required water quality requirements, and can be selected within the range of 0.035-3 mm;

Correspondingly, the differential pressure gauge 13 communicates with the control system 14 to reflect the pressure difference when water flows into and out of the cylinder 1;

The usage state of the present utility model is described below.

First, water flows into the cavity of cylinder 1 through water inlet pipe 6. At this time, differential pressure gauge 13 monitors the pressure when the water flows in. After water flows into cylinder 1, it flows through the deflector under the guidance of deflector 9. In the passage between the cylinder 10 and the cylinder body 1, during the downward flow process, the impurities in the form of solids in the water sink to the lower head 3 for storage under the action of gravity, and complete the first filtration process. After the water flows out of the guide tube 10, it passes through the manifold 14 and enters the space between the filter screen 12 and the guide tube 10. Due to the pressure, the water flows from N to M, and passes through the wedge-shaped structure of the filter screen 12 to dissipate the small particles. Fibrous impurities are isolated to the outside of the filter screen 12 to complete the second filtration process. The water passing through the second filtration process flows into the horizontal pipe through the holes on the longitudinal pipe of the outlet pipe 7, and then flows out of the outlet pipe 7. At this time, the differential pressure gauge 13. Monitor the pressure when the water flows out;

The differential pressure gauge 13 feeds back the monitoring results to the control system 14 for comparison. When the pressure is unbalanced, the driving motor 5 is controlled to drive the brush on the cleaning mechanism 11 to clean the filter screen 12. The cleaned impurities are stored in the lower seal. Impurities in the head 3 are discharged together through the sewage pipe 8, thereby completing a complete water filtration procedure.

The above description of the embodiments is for those of ordinary skill in the technical field to be able to understand and apply the technology of this case. Those skilled in the art can easily make various modifications to these examples, and apply the general principles described here to other embodiments without creative effort. Therefore, this case is not limited to the above embodiments, and improvements and modifications made by those skilled in the art based on the disclosure of this case should be within the scope of protection of this case.

Claims (4)

1. A new type of water filtration device, including cylinder body (1), upper head (2), lower head (3), water inlet pipe (6), water outlet pipe (7), sewage pipe (8), diversion pipe Plate (9), guide tube (10), filter screen (12), sediment baffle (13), manifold (14); it is characterized in that: The water inlet pipe (6) is located at the upper part of the cylinder (1), the outlet pipe (7) is "L" shaped, its vertical part is located in the middle of the cylinder (1), and its horizontal part is located at the bottom of the cylinder (1) ; The cleaning mechanism (11) is located inside the cylinder body (1), and the middle part is sleeved on the upper part of the vertical pipe of the water outlet pipe (7), and the upper part is connected with the driving motor (5), and a brush is installed on it; The filter screen (12) adopts a grating structure to form a strip-shaped filter gap, which is designed as a cylinder as a whole, closed up and down, installed inside the cleaning mechanism (11), and fastened to the outlet pipe (7) at the bottom; The deflector (9) is located between the top of the cleaning mechanism (11) and the bottom cross-section of the water inlet pipe (6); The guide cylinder (10) is arranged between the cylinder body (1) and the cleaning mechanism (11), is a longitudinal ring structure, surrounds the outside of the filter screen (12), and a manifold (14) is installed below it. 2. A new type of water filtering device according to claim 1, characterized in that: the surface of the outlet pipe (7) is provided with small holes. 3. A new type of water filtering device according to claim 1, characterized in that: the upper part of the guide tube (10) and the outer edge of the cleaning mechanism (11) are in a sealed state. 4. A new type of water filtering device according to claim 1, characterized in that: the gap of the filter screen (12) is determined according to the required water quality requirements, and can be selected within the range of 0.035-3 mm.