CN102407046A - High Flow Basket Filter - Google Patents

Abstract

The invention relates to a large-flow basket filter for pipeline transportation, which comprises a cylinder body with a material inlet and a material outlet, wherein a closed cleaning bin for covering the material outlet is arranged in the cylinder body, a filter plate is arranged on the wall surface of the cleaning bin facing the material inlet, and a vertical filter basket with openings at two ends is arranged in the cleaning bin. According to the invention, the cleaning bin is arranged in the filter cylinder body, and the filter plate and the filter basket are arranged on the cleaning bin, so that the filtering area can be obviously increased; filter residues attached to the filter plate and the filter basket fall into the lower part of the cylinder under the scouring action of fluid, so that the filter plate and the filter basket are not blocked and can continuously work; the lower part of the cylinder body is used as a dirt containing space, and the dirt containing amount is large.

Description

High Flow Basket Filter

technical field

The invention relates to a pipeline filter, in particular to a large flow basket filter.

Background technique

The pipeline filter is a filter involved in the pipeline transportation process. It is installed on the pipeline and can remove large solid impurities in the fluid, so that the machinery and equipment (including compressors, pumps, etc.) Process, the role of ensuring safe production.

Existing pipeline filters generally adopt a T-shaped basket structure, and the T-shaped basket is arranged between the material inlet and the material outlet in the filter cylinder. When the liquid enters the cylinder from the material inlet, the solid impurity particles are blocked in the filter basket, while the clean fluid passes through the filter basket and is discharged from the material outlet. The pipeline filter has the following problems: 1. The dirt-holding capacity is very low. Since the filter screen specifications (mesh size, filter area) in the pipeline filter have been fixed, with the extension of the filter time, the impurities deposited on the filter screen will continue to increase, so that the effective filter area will gradually decrease, resulting in the continuous increase of the internal resistance of the pipeline. The working (filtering) efficiency gradually decreases, and even causes pipeline blockage in severe cases, which seriously threatens the equipment behind; 2. The filtering area is relatively small. Due to the single-net filter, the filter area is directly proportional to the size of the filter shell. To achieve a larger filter area, the equipment must be enlarged, which increases the cost of the equipment and takes up more space; 3. It cannot be continuous filter. Since the pipeline filter cannot automatically remove dirt, after the filter has been working for a period of time, it must be stopped and the filter screen (core pulling) must be taken out for cleaning. If the cleaning timing of the filter cannot be synchronized with the planned maintenance cycle of important equipment in the system, it will directly affect the long-term operation of the system, resulting in unnecessary system stop and start-up losses.

Contents of the invention

Aiming at the above problems, the present invention provides a large-flow basket filter, which has a large dirt-holding capacity, relatively large filtering area, and can work continuously.

According to the technical solution of the present invention: a large-flow basket filter, including a cylinder with a material inlet and a material outlet, the cylinder is provided with a closed cleaning chamber covering the material outlet, and the cleaning chamber faces A filter plate is arranged on the wall surface of the material inlet, and a vertical filter basket with openings at both ends is arranged in the clean chamber.

There are two walls of the clean chamber facing the material inlet, and an angle less than 180° is formed between the two walls.

The clean chamber is surrounded by the two walls, the wall of the barrel, an upper cover and a lower cover.

The two wall surfaces are respectively provided with filter frames, and the filter plates are plugged into the filter frames.

The shape of the filter plate is square, circular or rhombus.

A deflector is arranged at the junction of the two filter frames.

The cross section of the filter basket is triangular, square, circular or rhombus.

There are two or more than two filter baskets.

The upper part of the cylinder body is movably connected with a flange cover, and the flange cover is provided with a vent port.

The bottom of the cylinder is provided with a sewage outlet.

The technical effects of the present invention are: the present invention is provided with a cleaning chamber in the filter cylinder, and a filter plate and a filter basket are arranged on the clean chamber, which can significantly increase the filtering area; Under the action of scouring, if it falls into the lower part of the cylinder, the filter plate and filter basket will not be blocked and can work continuously; the lower part of the cylinder is used as a dirt holding space with a large amount of dirt.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Fig. 2 is a sectional view along line A-A of Fig. 1 .

Detailed ways

The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

In Fig. 1 and Fig. 2, it includes vent 1, flange cover 2, flange 3, cylinder 4, material inlet 5, deflector 6, filter plate 7, lower cover 8, sewage outlet 9, and material outlet 10 , Filter basket 11, cleaning bin 12, upper cover 13, wall 14, filter frame 15, etc.

As shown in Figures 1 and 2, the present invention is a large flow basket filter, comprising a cylindrical vertically arranged cylinder 4, the wall of the cylinder 4 is provided with a material inlet 5 at the same height and Material export 10. A flange 3 is arranged on the upper part of the cylinder body 4, and a flange cover 2 is movably connected by bolts, and a vent 1 is arranged on the flange cover 2. The bottom of the cylinder 4 is provided with a sewage outlet 9 .

A closed cleaning bin 12 covering the material outlet 10 is arranged inside the barrel 4 , and a filter plate 7 is arranged on the wall 14 of the cleaning bin 12 facing the material inlet 5 .

The cleaning chamber 12 is preferably surrounded by two wall surfaces 14 facing the material inlet 5 , the wall surface of the cylinder body 4 , an upper cover plate 13 and a lower cover plate 8 . An angle less than 180° is formed between the two wall surfaces 14 facing the material inlet 5, and the two wall surfaces 14 form a wedge-shaped flow guiding structure.

Filter frames 15 are arranged on the two wall surfaces 14 respectively, and the filter plate 7 is plugged into the filter frames 15 for easy replacement. The shape of the filter plate 7 can be any one, and the commonly used ones are square, round or rhombus. The junction of the two filter frames 15 is provided with a deflector 6 , which faces the material inlet 5 and acts as a buffer and guide for the material flowing from the material inlet 5 into the barrel 4 .

A vertical filter basket 11 with openings at both ends is arranged in the cleaning chamber 12 . The cross section of the filter basket 11 can be in various shapes, such as triangular, square, circular or rhombus. The quantity of filter basket 11 is set as required, can be one, two or more than two. The filter basket 11 can adopt a plug-in structure.

The working process of the present invention is as follows: the fluid to be filtered enters the interior of the filter cylinder 4 from the material inlet 5 of the filter, and enters the cleaning chamber 12 after being filtered by the filter plate 7 and the filter basket 11 respectively, and the filter residue is filtered by the filter plate 7 and the filter basket. 11 is intercepted outside the cleaning chamber 12, and the filtered clean fluid flows out from the material outlet 10.

Compared with the prior art, the present invention has the following advantages:

1. The filter area is relatively large. The cylinder body 4 is provided with a cleaning bin 12, on which a filter plate 7 and a filter basket 11 are arranged, which can significantly increase the filtering area, and the filtering area is at least 5 times that of the original T-shaped basket structure pipeline filter.

2. It has a large amount of dirt holding capacity and can work continuously. The filter residue attached to the filter plate 7 and the filter basket 11 will fall into the lower part of the cylinder 4 under the action of fluid scouring, the filter plate 7 and the filter basket 11 will not be blocked and can work continuously; the lower part of the cylinder 4 is used as a storage tank. Dirt space, more than 5 times larger than the existing pipeline filter dirt holding capacity.

3. Wedge diversion structure. The wedge-shaped diversion structure organically distributes the fluid at the material inlet 5 according to the direction of the fluid, reducing the direct washing of the liquid on the filter plate 7, and relying on the liquid flow to bring the filter residue to the sewage outlet 9.

4. Online recoil can be realized to ensure the continuous operation of the system. When the pressure difference of the filter element reaches the set maximum allowable pressure difference value, or when the time is up to the set value, the blowback gas is introduced from the material outlet 10, and the gas is pulsed from the inside of the cleaning chamber 12, and the adhered The filter cake on the surface of the filter plate 7 and the filter basket 11 is blown off, so that the pressure difference of the filter element is reduced to the initial set value, and the filter starts to filter again.

Claims (10)

1. A large-flow basket filter, comprising a cylinder (4) with a material inlet (5) and a material outlet (10), characterized in that: the cylinder (4) is provided with a The closed cleaning bin (12) of the outlet (10), the wall (14) of the cleaning bin (12) facing the material inlet (5) is provided with a filter plate (7), and the inside of the cleaning bin (12) A vertical filter basket (11) open at both ends is provided. 2. The large-flow basket filter according to claim 1, characterized in that: the wall surface (14) of the clean chamber (12) facing the material inlet (5) is two pieces, and the two wall surfaces ( 14) form an included angle less than 180°. 3. The large-flow basket filter according to claim 2, characterized in that: the clean chamber (12) is composed of the two walls (14), the wall of the cylinder (4), and the upper cover (13) and lower cover plate (8) enclose. 4. The large-flow basket filter according to claim 2, characterized in that: the two walls (14) are respectively provided with filter frames (15), and the filter plate (7) is inserted into the inside the filter frame (15). 5. The large-flow basket filter according to claim 4, characterized in that: the shape of the filter plate (7) is square, circular or rhombus. 6. The large-flow basket filter according to claim 4, characterized in that: a deflector (6) is provided at the junction of the two filter frames (15). 7. The large-flow basket filter according to claim 1, characterized in that: the cross-section of the filter basket (11) is triangular, square, circular or rhombus. 8. The large-flow basket filter according to claim 1, characterized in that: there are two or more filter baskets (11). 9. The large-flow basket filter according to claim 1, characterized in that: the upper part of the cylinder (4) is movably connected with a flange cover (2), and the flange cover (2) is provided with Vent (1). 10. The large-flow basket filter according to claim 1, characterized in that: the bottom of the cylinder (4) is provided with a sewage outlet (9).

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