CN2474915Y - Direct returning type diesel oil filter - Google Patents

Abstract

A direct-return diesel filter relates to equipment to filter oil products such as diesel and comprises an outer barrel body, a filter cartridge assembly, an oil inlet pipe and an oil outlet pipe, wherein the inner cavity of the outer barrel body is provided with the filter cartridge assembly which comprises a filter element arranged in an inner barrel and a by-pass valve, the bottom of the inner barrel is provided with dispersion holes. The filter element is fixed by a positioning cover, the pyramidal face of the positioning cover is provided with air inlet holes, the upper surface of the positioning cover is provided with a pressure spring and the topside of the positioning cover is provided with a capping. The oil inlet pipe is connected and jacketed with a seal ring and fixed to a flange on the outer barrel body. The utility model can effectively filter off impurity in oil products and is good in matching properties, and thereby the utility model is particularly suitable for usage in oil supply places such as fuel stations and oil depots of factories and mines, or the like.

Description

The direct returning type diesel fuel filter

The utility model relates to the design and fabrication technology of the equipment that oil products such as diesel oil are filtered.

At present, generally the filter of Shi Yonging is for filtering the filter paper that is arranged in parallel in the cavity, and oil products such as diesel oil are by filtering the filter paper in the cavity, filter, remove impurity, its shortcoming is: do not match oil depot, oil cylinder, pipeline facilities in the middle of needing to increase with existing fuel charger, these facility investments are very big, and long in time limit, influence normal fuel injection, the replacing of filter paper is cumbersome, change layer by layer, the whole set equipment investment is big.

The purpose of this utility model provides and a kind ofly can leach impurity in the oil product effectively, the direct returning type diesel fuel filter that matching is good.

The purpose of this utility model is to realize like this, by simplified, filter cylinder assembly, oil inlet pipe and flowline constitute outward, be the filter cylinder assembly in the outer simplified inner chamber, the filter cylinder assembly is dress filter core and a by-passing valve in the inner core, interior tube bottom is provided with diffusion hole, filter core is fixing by the location lid, the fuel feed hole that distributes on the conical surface is covered in the location, the location face of covering is a compression spring, be upper cover topmost, air bleeding valve is arranged on the upper cover, and the structure of oil inlet pipe is that adapter sleeve, sealing ring, transition joint and high-pressure oil pipe are connected in sequence, and connects the suit sealing ring and is fixed on the outer simplified flange.Oil-out is arranged on shell body top.Pressure gauge is arranged on the outer cylinder body, and the outer cylinder body bottom is a base, adorns nylon wheel below the base.

The utility model has the advantages that: rational in infrastructure, be easy to make, easy to use, can directly be connected with nozzle with the fuel charger oil-out, do not change the original pipe-line system in gas station, it is simply suitable that connection is installed.When filter core stopped up by impurity, dirt or the system oil temperature low excessively, factors such as flow pulsation are when causing inlet pressure to surpass certain pressure; Pressure gauge is warned, at this moment should be in time renew cartridge more, as can not shut down processing at once; the by-passing valve that is located under the filter core is opened work automatically, the protection filter.Diffusion hole is established in interior letter, and it is outer simplified that oil product is flowed into reposefully, weakens the impurity of oneself deposition, the disturbance of dirt.Filter core is the glass fibre material, has the filtering accuracy height, oil filling capacity is big, and the reset pressure loss is little, the advantage that pollutant holding capability is big, filtering accuracy is higher than 30 μ m, filter efficiency n 〉=99% is effectively removed dirt, colloid, ash content, impurity etc., makes the oil product cleaning, the discharging of nuisance when reducing oil firing is specially adapted to fuel feeding field points such as gas station, factories and miness oil depot and uses.

Below in conjunction with drawings and Examples the utility model is elaborated.

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model vertical view.

This direct returning type diesel fuel filter as shown in the figure, by outer cylinder body, the filter cylinder assembly, oil inlet pipe and flowline constitute, be the filter cylinder assembly in outer cylinder body 3 inner chambers, the filter cylinder assembly is dress filter core 4 and a by-passing valve 2 in the inner core 5, interior tube bottom is provided with diffusion hole 1, the precision of filter core is 5～30 μ m, filter core covers 6 by the location to be fixed, the fuel feed hole that distributes on the conical surface is covered in the location, the location face of covering is a compression spring 7, be upper cover 8 topmost, air bleeding valve is arranged on the upper cover, the structure of oil inlet pipe is an adapter sleeve 9, sealing ring, transition joint 10 and high-pressure oil pipe 11 are connected in sequence, connecting the suit sealing ring is fixed on the outer cylinder body flange, high-pressure oil pipe is the antistatic sebific duct, and high-pressure oil pipe two end connectors must contact with oil pipe intraformational bed steel wire in pressing, only in this way could prevent effectively that static from assembling.Oil-out is arranged on shell body top.Pressure gauge 12 is arranged on the outer cylinder body, and the outer cylinder body bottom is a base 13, dress nylon wheel 14 below the base.Complete machine adopts machining technique just can produce.This filter can be designed to performance parameter: flow, 100,160,250,400L/min, pressure: 0.25Mpa, pressure loss normal operating conditions≤0.075Mpa.

Claims (3)

1, direct returning type diesel fuel filter, constitute by outer cylinder body, filter cylinder assembly, oil inlet pipe and flowline, it is characterized in that: be the filter cylinder assembly in outer cylinder body [3] inner chamber, the filter cylinder assembly is dress filter core [4] and a by-passing valve [2] in the inner core [5], and interior tube bottom is provided with diffusion hole [1], and filter core is fixing by location lid [6], the fuel feed hole that distributes on the conical surface is covered in the location, the location face of covering is compression spring [7], is upper cover [8] topmost, and air bleeding valve is arranged on the upper cover.

2, direct returning type diesel fuel filter according to claim 1, it is characterized in that: the structure of oil inlet pipe is that adapter sleeve [9], sealing ring, transition joint [10] and high-pressure oil pipe [11] are connected in sequence, connecting the suit sealing ring is fixed on the outer cylinder body flange, oil-out is arranged on shell body top, and Pressure gauge [12] is arranged on the outer cylinder body.

3, direct returning type diesel fuel filter according to claim 1 is characterized in that: outer simplified bottom is base [13], adorns nylon wheel [14] below the base.

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