RU194756U1 - FILTRATION UNIT FOR CLEANING HYDRAULIC FLUID AND METHOD OF ITS APPLICATION - Google Patents

Abstract

The utility model relates to devices for cleaning used oils, in particular for filtering hydraulic fluids used in hydraulic valves of ball valves from solid mechanical impurities in order to protect equipment from wear and tear, it is designed to reuse technical liquids of hydraulic systems of shutoff valves of ball valves of main gas pipelines. A useful model is to ensure the reuse of technical fluids of various types of hydraulic systems. piping fittings. The problem is solved by creating a special filtration unit, as well as a method for its use for cleaning hydraulic fluids used in hydraulic valves of ball valves from solid mechanical impurities, designed to reuse technical fluids of hydraulic systems of valves of ball valves of main gas pipelines. from a supporting frame, made of longitudinal and transverse channels welded together. On the supporting frame, vertical racks made of a corner are installed. A base made from a corner is mounted on vertical racks for installing four filtration units with a cleaned hydraulic fluid. Each filter unit is a stainless steel housing, which is closed by a lid designed to protect the coarse filter from contamination. The coarse filter installed in the upper part of the filtration unit is a frame in which a grid with a mesh size of 0.01 mm for liquids PMS-20 and Nikolyub 4020 with a mesh size of 0.2 mm for oils AMG-10 and VMGZ is fixed. An oil pipe with an installed shut-off ball valve has been introduced at the bottom of the filtration unit. An oil pipe connects the filter unit to the fine filter housing. A fine filter, which is a replaceable Regotmas filter element, is mounted through a screw cap into the fine filter housing. In the lower part of the fine filter housing, an oil line with an installed outlet ball valve is introduced. For ease of use, the filtration unit for cleaning hydraulic fluid is made mobile and equipped with a handle and wheel pairs.

Description

The utility model relates to devices for cleaning used oils, in particular for filtering hydraulic fluids used in hydraulic valves of ball valves from solid mechanical impurities in order to protect equipment from wear and tear, it is intended for reuse of technical liquids of hydraulic systems of shutoff valves of ball valves of gas mains.

A number of devices are known for filtering a working fluid in order to protect equipment from wear and tear when pumping liquids with a high content of solids.

A known installation for cleaning and drying of light petroleum products (RF patent No. 2084490, IPC C10G 31/09, 07/20/1997), which contains a working tank with a perforated partition to place on it a fabric membrane and cells with granular filling.

The disadvantage of this installation is poor access to the working capacity to replace oil cleaning materials, because It is located in an oil bath.

In order to prevent the ingress of dirty oil from the working tank into a clean one, its cover is tightened, which further complicates access to its filters.

The small volume of the working capacity and the presence of one tissue membrane suggest a small amount of oil being cleaned.

The heater in the installation is located in a bath with dirty oil, which leads to its oxidation and the formation of soot.

Also known is the "Method for cleaning and drying light petroleum products and installation for its implementation" (RF patent No. 2119371, 09.29.1998). The installation contains a working tank, into the housing of which a fine filter is introduced, including a copper fine-mesh mesh with several layers of batting on it, on which the upper perforated plate is located. All this is laid on a cellular divider with a filler, which is located on a tissue membrane located on the middle perforated septum. The filter is packed in burlap.

The disadvantage of this installation is the inconvenience of its maintenance, because a huge tank with dirty oil is installed under the filter tank, which, together with the oil pipe system, makes it difficult to replace the filters, restricting free access to them.

Closest to the claimed is an installation for cleaning oils (RF patent No. 2246337, IPC B01D 17/022, 20.11.2002) selected as a prototype, made in a shape resembling a six-pointed star, each beam of which has a rectangular cross section and is a two-stage cleaning unit, and all the front end surfaces of each block are interconnected in such a way that they form a hexagonal space, in the center of which a vertical cylindrical tank is installed at the intersection of the vertical axial planes of the blocks and is connected to each block by means of oil pipelines and valves, each block being placed in a case with a hermetically sealed lid through a felt pad and contains sequentially from the center a perforated plate with stops, a fabric pad, a mold with filler cells, a fine copper mesh, batting, a perforated plate, a perforated plate with stops, fabric gasket, mold with cells for the filler, fine copper mesh, batting, perforated plate with stops, outlet for clean oil on the rear end wall of the housing and input on the front.

A disadvantage of the known device is the structural complexity of manufacturing the installation, the presence of a heating element and a pump, which in turn reduces the mobility of the installation for filtration under route conditions, the inability to simultaneously filter several types of oils (hydraulic fluids).

The objective of the utility model is to ensure the reuse of technical fluids of various types of hydraulic systems of pipeline valves.

EFFECT: simultaneous cleaning of a hydraulic fluid of various types used in hydraulic valves of ball valves for its subsequent use.

The problem is solved by creating a special filtration unit, as well as a method of its application for cleaning the hydraulic fluid used in hydraulic valves of ball valves from solid mechanical impurities, designed to be able to reuse technical fluids of hydraulic systems of shutoff valves of ball valves of gas pipelines.

The claimed filtration unit and method of its use for cleaning hydraulic fluid is illustrated using:

FIG. 1 is a general view of a filtration unit for cleaning a hydraulic fluid.

The installation is made of a support frame (1) made of longitudinal and transverse channels welded together. On the supporting frame (1), vertical posts (2) made of a corner are installed. A base (3) made from a corner is mounted on vertical posts (2) to install four removable filter units (4) that are not interconnected with the hydraulic fluid to be cleaned (5). Each filter unit (4) is a sealed rectangular container made of stainless steel, closed by a lid (6) designed to protect the rough filter (7) from contamination. The coarse filter (7) installed in the upper part of the filtration unit (4) is a frame in which the mesh (8) is fixed. A mesh (8) with a mesh size of 0.01 mm for PMS-20 and Nikolyub 4020 fluids is fixed in the upper part of the two filtration units (4), a mesh (8) with a mesh size of 0.2 mm is fixed in the remaining filtration blocks (4) oils AMG-10 and VMGZ. In the lower part of the filtration unit (4), an oil pipe (9) with a shut-off ball valve (10) installed is installed. An oil line (9) connects each filter unit (4) with non-interconnected fine filter housings (11). A fine filter (13), which is a replaceable Regotmas filter element, is mounted into the fine filter housing (11) through a screw cap (12). An oil pipe (9) is welded into the lower part of the fine filter housing (11) with an installed outlet ball valve (14). For ease of use, the filtration unit for cleaning hydraulic fluid is made mobile, equipped with a handle (15) and wheel pairs (16).

The technology for cleaning hydraulic fluid used in hydraulic ball valves of solid mechanical impurities is as follows. The liquid being cleaned undergoes an initial examination for the content of water and solids in a chemical laboratory. If the sample contains water, it is necessary to sediment the consumables being cleaned at positive temperatures (at least 240 hours). With subsequent exposure to the settled material at negative temperatures (at least 240 hours) by freezing. Repeated analysis for water content in a chemical laboratory. In the absence of water in the sample, further cleaning of the hydraulic fluid occurs using a filtration unit in the following sequence. The crude technical fluid of the hydraulic systems of the valves through the coarse filter (7) is poured into the filter block (4) corresponding to the type of liquid, in which, passing through the fixed mesh (8), the primary separation of the mechanical impurities contained in the liquid occurs. After the filtration unit (4) is completely filled, the shut-off ball valve (10) is opened and the hydraulic fluid (5) passing through the primary stage of cleaning is passed through the oil pipe (9) by gravity through the hydrostatic column of liquid into the fine filter housing (11). After passing through the fine filter (13), the hydraulic fluid (5) is finally cleaned of mechanical impurities and the purified fluid is drained through the outlet ball valve (14) into a clean container. The absence of mechanical impurities in the liquid is confirmed by the result of chemical analysis.

The salient features of the claimed filtration unit and the method of its use for cleaning hydraulic fluid are:

- the design of the installation is designed in such a way that allows simultaneous cleaning of up to four types of hydraulic fluids with different physicochemical properties by using the appropriate number of filtration units;

- the device of the filtration units allows their dismantling from the frame of the filtration unit for individual use in highway conditions;

- the specified cell size of the coarse filter allows you to provide the proper ratio of throughput and degree of purification for the corresponding type of hydraulic fluid;

- the installation does not use actuators that are consumers of electrical energy, which in turn increases the scope of the installation;

- the design of the fine filter housing allows you to quickly change the paper filter element based on the degree of contamination;

- separation of the clean and dirty fraction in the fine filter housing occurs due to the tight fit of the hard end of the paper filter to the bottom of the housing by pressing it from the side of the filter cover screwed into the housing;

- the technology of cleaning hydraulic fluid from water by freezing is easily applicable in the conditions of an existing production facility and does not require large economic costs;

- the structural elements included in the installation are simple to manufacture, which will allow them to be used in a compressor station;

- for ease of use, the installation is made mobile and equipped with a handle and wheelsets;

- the introduction of this filtration unit and its method of application for cleaning hydraulic fluid allows for the reuse of expensive technical fluids of hydraulic systems of pipeline valves.

The claimed significant distinguishing features are unknown to us from the patent and scientific and technical information and are therefore “New”.

For the claimed device, working drawings, strength calculations, and a prototype were made, which were successfully tested during the work on the filtration of hydraulic fluid in the Privodinsky LPUMG of Gazprom transgaz Ukhta LLC. The purity of the hydraulic fluid required for reuse is confirmed by laboratory analysis. In this regard, the device declared by us meets the criterion of "Industrial Applicability".

The claimed installation and the method of its application for cleaning hydraulic fluid allows the hydraulic fluid used in hydraulic valves of ball valves to clean solid mechanical impurities and is designed to reuse technical fluids of hydraulic systems of stop valves of ball valves of gas pipelines, which will significantly reduce the cost of the acquisition of expensive materials.

Claims (1)

Filtration unit for cleaning hydraulic fluid, consisting of a support frame made of longitudinal and transverse channels welded together, on which are installed vertical racks with a base for filtration units, characterized in that it consists of four removable filter units that are not connected to each other, each of which is connected to a separate oil pipe and not connected to each other by fine filter housings, in the upper part two filter blocks fixed mesh with a mesh size of 0.01 mm, in the rest filter blocks fixed mesh with a mesh size of 0.2 mm.

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