CN201120208Y - Circular 18-core diesel oil prefilter with by-pass - Google Patents

Abstract

The utility model discloses an annular eighteen-core diesel oil pre-filtering device, which comprises a cylinder shell whose upper end is opened and bottom is in semi-ball shape, a semi-ball shape shell cover, a pure oil cavity and a filter cavity which are arranged in the shell, eighteen two-stage filtering filter elements which are homogeneously and symmetrically distributed in the shell, wherein an oil inlet, an oil outlet and a sewage outlet are opened on the shell, the pure oil cavity and the filter cavity take a buffer plate as a boundary, the pure oil cavity is positioned on the lower portion of the filter cavity, the two-stage filtering filter elements are positioned on the upper portion of the pure oil cavity and are installed on the filter element mounting seats, the cavities of the two-stage filtering filter elements are communicated with the pure oil cavity through the filter element mounting seats, an air outlet which is communicated with the filter cavity is arranged on the shell cover, and the oil inlet is positioned on the middle upper portion of the side wall of the shell and is communicated with the filter cavity, the oil outlet is communicated with the pure oil cavity, and the sewage outlet and the filter element mounting seats are arranged in parallel. The annular eighteen-core diesel oil pre-filtering device has the advantages of simple and reasonable structure, and convenient assembly and use, not only has high filtering accuracy and strong pollution receiving capacity, but also has high filtering efficiency and big flow, and can effectively solve problems of cleaning and filtering diesel oil, and the continuous oil supply during changing filtering elements.

Description

A kind of circle 18 core diesel oil pre-filtrating equipments with bypass

Technical field

The utility model relates to technical field of fuel filtration, especially relates to a kind of circle 18 core diesel oil pre-filtrating equipments 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 circle 18 core diesel oil pre-filtrating equipments with bypass are provided, this filter apparatus configuration is simple, easy to install and use, flow is big, 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 circle 18 core diesel oil pre-filtrating equipments with bypass, comprise that upper end open and bottom are hemispheric cylinder housing 2, hemispherical shell lid 10, be arranged on the absolute oil chamber 11 and filter chamber 12 of enclosure interior, and 18 double-stage filtering filter cores 1 that are laid in housing 2 inside symmetrically, offer oil-in 3 on the wherein said housing 2, 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 the middle and upper part of housing 2 sidewalls 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 16 between housing 2 outsides, oil-in 3 and oil-out 4, an end of by-pass line 16 is provided with valve 17.

As a kind of preferred version of the present utility model, the pressure indicator 13 that described housing 2 sidewalls are provided with differential pressure transmitter device 9 or have positive and negative deixis.

To sum up, adopt a kind of circle 18 core diesel oil pre-filtrating equipments 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, flow is big, and the flow that filters back diesel oil can reach about 400 liters of per minutes, is suitable for and need carries out quick filtration treatment to diesel oil, and need the occasion of big flow supply clean diesel; 5, water environment capacity is strong, and has higher drainage function; 6, have automatic warning function or pressure deixis, can in time remind the user that filter core is changed, guarantee that pre-filtrating equipment can continue operate as normal; 7, can be implemented under the situation that continues fuel feeding, 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 structural representation of the utility model first preferred implementation.

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

Fig. 3 is the structural representation of the utility model second preferred implementation.

Description of reference numerals:

1-double-stage filtering filter core; The 2-housing; 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; The 9-differential pressure transmitter device;

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

The 13-pressure indicator; The 14-bracing frame; The 15-bolt;

The 16-by-pass line; The 17-valve.

The specific embodiment

First preferred implementation, as Fig. 1, shown in Figure 2, the circle 18 core diesel oil pre-filtrating equipments of described band bypass, comprise that upper end open and bottom are hemispheric cylinder housing 2, hemispherical shell lid 10, be arranged on the absolute oil chamber 11 and filter chamber 12 of enclosure interior, and 18 double-stage filtering filter cores 1 that are laid in housing 2 inside symmetrically, offer oil-in 3 on the wherein said housing 2, 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 the middle and upper part of housing 2 sidewalls 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.Case lid 10 is fixedly mounted on the housing 2 by bolt 15, constitutes the shell structure of sealing, and housing 2 bottom outside are provided with bracing frame 14 simultaneously.Simultaneously housing 2 sidewalls are provided with differential pressure transmitter device 9, and between housing 2 outsides, oil-in 3 and oil-out 4 solderless wrapped connection one by-pass line 16, an end of by-pass line 16 is provided with valve 17, oil-in 3 and oil-out (4) end are provided with valve 17.

The course of work of the circle 18 core diesel oil pre-filtrating equipments 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 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 enters filter chamber 12, 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 chamber 11, the most after filtration, the diesel oil after purifying discharges through oil-out 4, and be input to and need carry out quick filtration treatment and need the occasion of big flow supply clean diesel diesel oil.

Circle 18 core diesel oil pre-filtrating equipments in this band bypass carry out in the whole process of normal filtration, be arranged on the differential pressure transmitter device 9 on the housing sidewall 2, to the pressure of absolute oil chamber 11 with filter chamber 12 inner diesel oil, be unfiltered diesel oil and filter after the pressure of diesel oil detect and analyze pressure reduction between the two in real time, when the pressure reduction between the two reaches the alarming value of setting, differential pressure transmitter device 9 in time gives the alarm, and illustrates that this moment, double-stage filtering filter core 1 blocked need were in time changed.In the normal filtration process, the valve 17 that by-pass line 16 ends are provided with is in closed condition, and by-pass line 16 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 17 of by-pass line 16 ends and connect by-pass line 13, thereby when changing double-stage filtering filter core 1, continue fuel feeding by by-pass line 16.

Second preferred implementation, as shown in Figure 3, differential pressure transmitter device 9 in corresponding first preferred implementation of the circle 18 core diesel oil pre-filtrating equipments of this band bypass, be provided with the pressure indicator 13 with positive and negative deixis, other part-structures, the course of work are identical with first preferred implementation.This pressure indicator 14 detects the pressure of filter chamber 12 with absolute oil chamber 11 inner diesel oil respectively, and shows the pressure reduction between the two.When double-stage filtering filter core 1 does not stop up, the pressure reduction during its normal filtration between filter chamber 12 and the absolute oil chamber 11 be on the occasion of, this moment pressure indicator 13 indicated value be on the occasion of; Blocked and can't normal filtration the time when double-stage filtering filter core 1, because filter chamber 12 is a negative value with pressure reduction between the absolute oil chamber 11, the indicated value of pressure indicator 13 be a negative value at this moment.In the whole process that the circle 18 core diesel oil pre-filtrating equipments of this band bypass filter,, illustrate that double-stage filtering filter core 1 blocked need in time change if when the indicated value of pressure indicator 13 is negative value.At this moment, close oil-in 3, open bung 10, take out inner blocked double-stage filtering filter core 1 and, open sewage draining exit 5 simultaneously, in time discharge being deposited in impurity around dividing plate 8 tops, the filter core mount pad 7, moisture etc. with its replacing.When changing double-stage filtering filter core 1, continue fuel feeding by by-pass line 16.

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 (2)

1. circle 18 core diesel oil pre-filtrating equipments with bypass, it is characterized in that: comprise that upper end open and bottom are hemispheric cylinder housing (2), hemispherical shell lid (10), be arranged on the absolute oil chamber (11) and filter chamber (12) of enclosure interior, and 18 the double-stage filtering filter cores (1) that are laid in housing (2) inside symmetrically, offer oil-in (3) on the wherein said housing (2), 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 the middle and upper part of housing (2) sidewall 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 (16) between housing (2) outside, oil-in (3) and oil-out (4), an end of by-pass line (16) is provided with valve (17).

2. according to the described a kind of circle 18 core diesel oil pre-filtrating equipments with bypass of claim 1, it is characterized in that: described housing (2) sidewall is provided with differential pressure transmitter device (9) or has the pressure indicator (13) of positive and negative deixis.

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