CN201120222Y - Diesel oil prefilter with by-pass - Google Patents

Abstract

The utility model discloses a diesel oil pre-filtering device with bypasses, which comprises a shell, a pure cavity arranged in the shell, a filter cavity and a plurality of two-stage filtering filter elements which are homogeneously and symmetrically distributed in the shell, wherein the shell comprises a shell side wall, a shell cover and a shell base, and each part is formed by one-shot through adopting the compression casting technology, and an oil inlet, an oil outlet, a sewage outlet and a pressure difference communicator mounting port are arranged on the shell, the two-stage filtering filter elements are positioned on the middle upper portion of the barrel body and are installed on filtering element mounting seats, and the cavities of the two-stage filtering filter elements are communicated with the pure oil cavity through the filtering element mounting seats, an air outlet and the oil inlet is communicated with the filter cavity, the oil outlet is communicated with the pure oil cavity, and the sewage outlet and the filtering element mounting seats are arranged in parallel, and simultaneously, the bypasses are installed. The diesel oil pre-filtering device has the advantages of simple structure and compact external form, convenient use and assembly, not only has high filtering accuracy and strong pollution receiving capacity, but also has high filtering efficiency and bigger flow range, has the automatic alarm function and can effectively solve problems of cleaning and filtering diesel oil.

Description

A kind of diesel oil pre-filtrating equipment with bypass

Technical field

The utility model relates to technical field of fuel filtration, especially relates to a kind of diesel oil pre-filtrating equipment with bypass.

Background technology

The residual colloid of meeting, asphalitine etc. in the production process of diesel oil itself, and in its transportation, storage process, some pollution problems can appear inevitably, be easy to sneak into many such as impurity such as ashes, metal fragments.This type of diesel oil is when using as used for diesel engine is oily, because atomizing effect is poor, burning back emission smoke intensity value is higher, causes air pollution easily, when wasting energy diesel engine is also caused damage to a certain extent.At present, in the prior art field, exist some to adopt filtration gauze type, that carry out simple coarse filtration on the market, it in fact just utilizes gauze that the big slightly solid impurity of some particle diameter is stopped simply, can not clean filtration effectively to diesel oil.Though also occurred some diesel oil prefilters in the market, its volume is little, and inner filter core diameter is little, and the gauze structure that is adopted also just stops bigger solid impurity simply, can not effectively solve the cleaning filtration problem of diesel oil.

The utility model content

Technical problem to be solved in the utility model is at above-mentioned deficiency of the prior art, a kind of diesel oil pre-filtrating equipment with bypass is provided, this filter apparatus configuration is simple, easy to install and use, and the cleaning that can effectively solve diesel oil is filtered and the lasting fuel feeding problem during renew cartridge more.

For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of diesel oil pre-filtrating equipment with bypass, comprise housing, be arranged on the absolute oil chamber 11 of enclosure interior, filter chamber 12 and many double-stage filtering filter cores 1 that are laid in enclosure interior symmetrically, wherein said housing comprises housing sidewall 2, case lid 10 and housing base 9, each several part adopts the extrusion process one-shot forming, offer oil-in 3 on it, oil-out 4 and sewage draining exit 5,12 of absolute oil chamber 11 and filter chambers are the boundary with dividing plate 8, absolute oil chamber 11 is positioned at filter chamber 12 bottoms, double-stage filtering filter core 1 is positioned at 11 tops, absolute oil chamber and is installed on each self-corresponding filter core mount pad 7, filter core mount pad 7 is installed in construction opening place corresponding on the dividing plate 8, and the inner chamber of double-stage filtering filter core 1 communicates with absolute oil chamber 11 by filter core mount pad 7; Case lid 10 is provided with the exhaust outlet 6 that communicates with filter chamber 12, and oil-in 3 is positioned at housing sidewall 2 middle and upper parts and communicates with filter chamber 12, and oil-out 4 communicates with absolute oil chamber 11, and sewage draining exit 5 be arranged in parallel with filter core mount pad 7; Solderless wrapped connection one by-pass line 13 between housing sidewall 2 outsides, oil-in 3 and oil-out 4, an end of by-pass line 13 is provided with valve 14.

As a kind of preferred version of the present utility model, the cross section of described housing is ellipse, circle or rectangle.

As another kind of preferred version of the present utility model, described enclosure interior is provided with one, two, three, four, five or six double-stage filtering filter core 1.

To sum up, adopt a kind of diesel oil pre-filtrating equipment of the utility model, have the following advantages: 1, simple and reasonable, easy for installation with bypass; 2, filtering accuracy height can play good filter effect to diameter at impurity more than 15 microns etc.; 3, filter efficiency height, the filter efficiency of this filter can reach more than 90%; 4, range of flow is bigger, and the flow that per minute filters back diesel oil can reach about 100 liters of per minutes, is suitable for the less diesel engine of some traffic demands; 5, structure-integrated, external form is light and handy and easy to use, the installation site is flexible, and housing is that material adopts the extrusion process one-shot forming can additionally not increase metal impurities with the aluminium alloy; 6, water environment capacity is strong, and higher drainage function is arranged; 7, can be implemented under the situation that continues fuel feeding and carry out more renew cartridge.

Below by drawings and Examples, the technical solution of the utility model is described in further detail.

Description of drawings

Fig. 1 is the vertical view of the utility model preferred implementation.

Fig. 2 is the structural representation that Fig. 1 analyses and observe along the A-A face.

Fig. 3 is the structural representation that Fig. 1 analyses and observe along the B-B face.

Description of reference numerals:

1-double-stage filtering filter core; The 2-housing sidewall; The 3-oil-in;

The 4-oil-out; The 5-sewage draining exit; The 6-exhaust outlet;

7-filter core mount pad; The 8-dividing plate; 9-housing base;

The 10-case lid; 11-absolute oil chamber; The 12-filter chamber;

The 13-by-pass line; The 14-valve; The 15-bolt.

The specific embodiment

As Fig. 1, Fig. 2 and shown in Figure 3, the diesel oil pre-filtrating equipment of described band bypass, comprise housing, be arranged on absolute oil chamber 11, filter chamber 12 and three double-stage filtering filter cores 1 that are laid in enclosure interior symmetrically of enclosure interior, wherein said housing comprises housing sidewall 2, case lid 10 and housing base 9, each several part adopts the extrusion process one-shot forming, offer oil-in 3, oil-out 4 and sewage draining exit 5 on it, 12 of absolute oil chamber 11 and filter chambers are the boundary with dividing plate 8, and absolute oil chamber 11 is positioned at filter chamber 12 bottoms.The housing cross section is oval, and case lid 10 is fixedly mounted on the housing sidewall 2 by bolt 15 with housing base 9.Described shell structure is integrated, and external form is light and handy and easy to use, the installation site is flexible, and housing is material with the aluminium alloy and adopts the extrusion process one-shot forming, thereby can additionally not increase metal impurities.

Absolute oil chamber 11 is positioned at the bottom of housing sidewall 2, three double-stage filtering filter cores 1 are positioned at 11 tops, absolute oil chamber and are installed on each self-corresponding filter core mount pad 6, filter core mount pad 7 is installed in construction opening place corresponding on 11 upper baffle plates 8 of absolute oil chamber, and the inner chamber of double-stage filtering filter core 1 communicates with absolute oil chamber 11 by filter core mount pad 7.Case lid 10 is provided with the exhaust outlet 6 that communicates with filter chamber 12 in addition, oil-in 3 is positioned at housing sidewall 2 middle and upper parts and communicates with filter chamber 12, oil-out 4 communicates with absolute oil chamber 11, sewage draining exit 5 be arranged in parallel with filter core mount pad 7, while solderless wrapped connection one by-pass line 13 between housing sidewall 2 outsides, oil-in 3 and oil-out 4, one end of by-pass line 13 is provided with valve 14, and oil-in 3 is provided with valve 14 with oil-out 4 ends.

The course of work of the diesel oil pre-filtrating equipment of this band bypass is: when at first restarting work at its first task or after changing inner filter core, open oil-in 3 and oil-out 4, close sewage draining exit 5, open the exhaust outlet 6 that is provided with on the case lid 10 simultaneously, the gas of original existence in housing sidewall 2 inside and oil-out 4 pipelines is all discharged gradually, after treating that internal gas is all discharged, close exhaust outlet 6, this moment, this pre-filtrating equipment began operate as normal.Oil-in 3 and oil-out 4 are arranged on the valve of oil-in 3 and oil-out 4 ends, control the break-make of oil-in 3 and oil-out 4 respectively.Diesel oil is after oil-in 3 flows into housing sidewall 2 inside, behind the ectonexine double-filtration through double-stage filtering filter core 1, enter double-stage filtering filter core 1 inside, and the dividing plate 8 that is provided with between double-stage filtering filter core 1 bottom and filter core mount pad 6 flows into absolute oil chambeies 11, the most after filtration, the diesel oil after purifying discharges and the input diesel engine is that it is used through oil-out 4.

Diesel oil pre-filtrating equipment in this band bypass carries out in the whole process of normal filtration, and the valve 14 that by-pass line 13 ends are provided with is in closed condition, and by-pass line 13 is disconnected.And when double-stage filtering filter core 1 blocked need are in time changed, close oil-in 3, open case lid 10, take out inner blocked double-stage filtering filter core 1 and its replacing, open sewage draining exit 5 simultaneously, in time discharge being deposited in impurity around dividing plate 8 tops, filter core mount pad 7, moisture etc.When changing double-stage filtering filter core 1, open the valve 14 of by-pass line 13 ends and connect by-pass line 13, thereby when changing double-stage filtering filter core 1, continue fuel feeding by by-pass line 13.

The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of technical solutions of the utility model according to the utility model technical spirit.

Claims (3)

1. diesel oil pre-filtrating equipment with bypass, it is characterized in that: comprise housing, be arranged on the absolute oil chamber (11) of enclosure interior, filter chamber (12) and many double-stage filtering filter cores (1) that are laid in enclosure interior symmetrically, wherein said housing comprises housing sidewall (2), case lid (10) and housing base (9), each several part adopts the extrusion process one-shot forming, offer oil-in (3) on it, oil-out (4) and sewage draining exit (5), be the boundary with dividing plate (8) between absolute oil chamber (11) and filter chamber (12), absolute oil chamber (11) is positioned at filter chamber (12) bottom, double-stage filtering filter core (1) is positioned at (11) top, absolute oil chamber and is installed on each self-corresponding filter core mount pad (7), filter core mount pad (7) is installed in dividing plate (8) and goes up corresponding construction opening place, and the inner chamber of double-stage filtering filter core (1) communicates with absolute oil chamber (11) by filter core mount pad (7); Case lid (10) is provided with the exhaust outlet (6) that communicates with filter chamber (12), oil-in (3) is positioned at housing sidewall (2) middle and upper part and communicates with filter chamber (12), oil-out (4) communicates with absolute oil chamber (11), and sewage draining exit (5) be arranged in parallel with filter core mount pad (7); Solderless wrapped connection one by-pass line (13) between housing sidewall (2) outside, oil-in (3) and oil-out (4), an end of by-pass line (13) is provided with valve (14).

2. according to the described a kind of diesel oil pre-filtrating equipment with bypass of claim 1, it is characterized in that: the cross section of described housing is ellipse, circle or rectangle.

3. according to claim 1 or 2 described a kind of diesel oil pre-filtrating equipments with bypass, it is characterized in that: described enclosure interior is provided with one, two, three, four, five or six double-stage filtering filter core (1).

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