RU184441U1 - LIQUID CLEANING FILTER - Google Patents

Abstract

The utility model relates to devices for cleaning liquids from solid impurities and can be used in the oil refining, petrochemical, oil and gas industries. A filter for cleaning liquid includes a vertical body, fittings for slurry inlet, filtrate outlet, sludge removal, drainage fitting, drainage pipe, channel suspension supply, upper and lower grates, filtering element, inclined bottom, vertical wall, internal nozzle, removable cover in the upper part of the body, suspension inlet zone, zone boron sediment and filtrate zone, while the sediment collection zone is placed under the filter element, is limited to the lower grille, inclined bottom, vertical wall, inner surface of the housing, so that the drainage pipe is located between the lower part of the slurry inlet zone and the sediment collection zone with the internal branch pipe bent down.

Description

The utility model relates to devices for the purification of liquids from solid impurities and can be used in the oil refining, petrochemical, oil and gas industries.

Known filter for cleaning fluid containing a vertical case with inlet and outlet nozzles, a partition with frontal and two horizontal parts placed in the case, and a filtering element, the ends of which are mounted into the horizontal part of the partition, and dividing the case into the working chamber and filtrate receiving chamber (RF patent No. 37469, B01D 29/33 of 04/27/2004).

The disadvantage of this device is that the flow of the cleaned fluid moving through the lower gap formed by the front wall, will prevent the accumulation of mechanical impurities on the bottom bottom of the housing and their subsequent removal. As a result, the deposition of mechanical impurities on the filter element will be much more intensive, which will reduce the period of its uninterrupted operation.

Known filter for cleaning fluid from mechanical impurities, containing a vertical body with coaxially located nozzles for the passage of the cleaned fluid and a drainage nozzle in its lower part, a partition placed in the housing, dividing it into a working chamber and a filtrate receiving chamber and a filtering element with an internal cylindrical surface ( copyright certificate number 1443934, B01D 29/10 dated 12/15/1988).

The disadvantages of this device are:

- trapped mechanical impurities accumulate in the lower part of the body, fill the discharge (drainage) fitting and the pipeline, compacted or stick together, forming a plug, which can lead to the impossibility of their removal through the pipeline and the need to stop, empty, disassemble and clean the filter;

- combining the functions of drainage of fluid and removal of mechanical impurities in one fitting located in the lower part of the filter. If this fitting is clogged with mechanical impurities, it is impossible to drain the fluid from it when the filter is regulated or emergency shutdown, which is an unacceptable situation.

Technical tasks to be addressed by the claimed utility model are to prevent clogging of the drainage pipeline with solid impurities and to increase the reliability of removing solid impurities from the filter.

The tasks are solved due to the fact that in the filter for cleaning fluid containing a vertical case with fittings of the suspension inlet and filtrate outlet, drainage fitting, suspension supply channel, upper and lower gratings, between which the filter element is located, suspension inlet zone, sludge collection zone and a filtrate zone, and that additionally contains a removable lid in the upper part of the body, a sludge disposal fitting located in the sludge collection zone, a drainage pipe, while the sludge collection zone is located under the filter element It is bounded by a lower grate, a sloping bottom with a slope towards the sludge removal fitting and an internal branch pipe, a vertical wall, the inner surface of the housing, and the drainage fitting is located in the filtrate zone, and that the drainage pipe is located between the lower part of the suspension inlet zone and the sludge collection zone, and the sludge removal fitting is installed with the inner pipe bent down.

Placing the sediment collection area under the filter element, as well as limiting it to the lower grille, inclined bottom, vertical wall and the inner surface of the housing will prevent accumulation of sediment and plug formation in the drainage fitting at the bottom of the housing.

The location of the drainage pipe between the lower part of the suspension inlet zone and the sediment collection zone will allow liquid to be removed from the suspension supply channel when the filter is stopped.

Installing a sludge removal fitting with a downwardly bent inner tube eliminates the possibility of clogging with solid impurities and increases the reliability of sludge removal from the filter.

In more detail the utility model is explained using the drawing.

FIG. 1 shows a general view of the filter for cleaning liquids from solid impurities.

The filter for cleaning the liquid (Fig. 1) includes a vertical body 1, fittings for slurry inlet 2 and filtrate outlet 3, drainage pipe 4, sludge removal pipe 5, channel 6 for supplying slurry, top 7 and bottom 8 grids between which filter element 9 is mounted , a drainage pipe 10, an inclined bottom 11 with a slope in the direction of the nozzle of the sludge removal 5, the vertical wall 12, the inner nozzle 13, a removable cover 14 in the upper part of the body, the sediment collection area 15, the suspension inlet zone 16 and the filtrate zone 17.

The filter element 9 is made removable, its connection with the grids 7 and 8 should be sealed. The sludge removal fitting 5 has a downwardly bent inner nozzle 13. A drainage pipe 10 connects the lower part of the slurry feed channel 6 and the sludge collection zone 15.

The zone of entry of the suspension 16 includes a channel 6 for supplying the suspension, a space above the upper grid 7 and the internal cavity of the filter element 9. The collection zone of the sludge 15 is formed by the lower grid 8, the inclined bottom 11, the vertical wall 12 and the internal surface of the housing 1. The rest of the filter space is occupied by the filtrate zone 17

Filter for cleaning fluid from mechanical impurities works as follows.

The suspension stream containing liquid and solid impurities is fed into the housing 1 through the fitting of the suspension inlet 2 and through the suspension supply channel 6 is sent to the upper part of the housing 1 on the inner surface of the filter element 9. As the suspension passes through the filtering material, a part of solid impurities settles on the inner surface the filter element 9, and part (the largest particles) under the action of gravitational force is lowered into the sediment collection zone 15, thereby reducing the ingress of impurities into the filter element 9.

The solid impurities deposited on the inner surface of the filter element 9 gradually accumulate, come off and also settle in the sediment collection zone 15. With the accumulation of solid impurities, the sediment collection zone 15 is released from it through the sediment removal fitting 5 by periodically opening the shut-off and control valves. When the valves are opened together with solid impurities, a certain amount of the suspension entering the filter is removed. At the same time, in the internal cavity of the filter element 9, a movement of liquid occurs, directed along the filter element 9 down to the sediment collecting zone 15, which picks up a part of solid impurities deposited on the inner surface of the filter material, i.e. self-cleaning filter. Accumulation of precipitated solids inside the nozzle remove sediment 5 does not occur, because the nozzle is bent down the inner nozzle 13. Passed through the filter element 9, the filtrate is discharged through the nozzle 3 output filtrate. Since the drainage nozzle 4 is in the zone of the filtrate, the accumulation of solid impurities in it does not occur and its clogging is excluded. When the filter is stopped, the liquid is removed through the drainage nozzle 4, and from the suspension supply channel 6, the liquid flows by gravity through the drainage pipe 10 into the sediment collection area 15 and through the sediment removal nozzle. 5 is removed from the apparatus.

As the filter element 9 becomes contaminated, it is cleaned or replaced through a removable cover 14 in the upper part of the housing.

Thus, the placement of the drainage fitting in the zone of the filtrate eliminates the possibility of clogging with solid impurities, and the design of the horizontal fitting with the internal branch pipe bent down increases the reliability of sludge removal.

Claims (3)

1. Filter for cleaning fluid containing a vertical case with fittings of the suspension inlet and filtrate outlet, drainage fitting, suspension supply channel, upper and lower gratings, between which the filter element is located, suspension inlet zone, sludge collection zone and filtrate zone, characterized in which additionally contains a removable lid in the upper part of the housing, a sludge removal fitting located in the sludge collection area, a drainage pipe, with the sludge collection area located under the filter element and limited to the bottom grid Oh, a sloping bottom with a slope in the direction of the nozzle of sediment removal and the internal pipe, a vertical wall, the inner surface of the housing, and the drainage pipe is located in the zone of the filtrate. 2. The filter according to claim 1, characterized in that the drainage pipe is located between the lower part of the suspension inlet zone and the sediment collection zone. 3. The filter according to claim 1, characterized in that the nozzle for removing sediment is installed with the internal branch pipe bent down.