Marine fuel oil filtering system

Abstract

The utility model discloses a marine fuel oil filtering system, which relates to the technical field of filters, and comprises a pump, a magnetic filter, a centrifugal filter, a dehydration filter and a PP cotton filter, the pump is communicated with the magnetic filter through a pipeline, the magnetic filter is communicated with the centrifugal filter, and the dehydration filter is communicated with the PP cotton filter through a pipeline. The centrifugal filter is communicated with the dewatering filter, and the dewatering filter is communicated with the PP cotton filter, so that high-precision, low-material-consumption, low-cost and high-efficiency dewatering is realized, the vacancy of the technical barrier of the traditional fuel filter is filled to a great extent, and the defects of the prior art are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filters, in particular to a marine fuel filter system. Background Art

[0002] According to statistics, the presence of water causes up to 40% of the faults in the fuel supply system. Water not only damages the fuel system and accelerates metal corrosion, but also causes mechanical impurities in the fuel to condense, causing the fuel filter to quickly clog; it causes microorganisms to be produced in the fuel, and also causes microorganisms to decompose additives in the fuel and non-metallic materials in the fuel tank, clogging the injector holes and causing damage to the fuel system. Therefore, during the transportation process, the fuel should be prevented from mixing with fresh water, seawater and mechanical impurities. Generally, a fuel filter needs to be implanted in the fuel system to achieve this purpose.

[0003] The marine fuel filter is a part of the fuel system. Its main function is to purify the fuel and diesel to be used by the ship, filter out dust and other solid particles in the fuel, prevent the fuel system from being blocked, reduce machine wear, ensure the stable operation of the engine, and improve its reliability.

[0004] There are two main types of traditional mainstream marine fuel filters. The first type is a duplex filter that only has the function of removing impurities. This type of filter does not have the function of dehydration, so it cannot meet the treatment of water-containing fuel. The other type of filter has both the function of removing impurities and dehydration. The dehydration uses a coalescing separation filter element. This type of filter has a small dirt holding capacity. When mechanical impurities cover the surface of the filter element to a certain extent, the coalescing filter element's hydrophobic layer's ability to aggregate small water droplets is greatly reduced, resulting in a significant decrease in water separation efficiency, which will lead to a large amount of consumables and high costs.

[0005] Therefore, in view of the shortcomings of the above scheme in actual production and implementation, it is revised and improved. At the same time, in the spirit and concept of seeking excellence, with the assistance of professional knowledge and experience, and after many ingenuity and experiments, a marine fuel filtration system is provided to solve the technical problems existing in the prior art. Utility Model Content

[0006] The utility model aims to provide a marine fuel filter system to solve the technical problems existing in the prior art.

[0007] The technical solution of the utility model is achieved in this way:

[0008] A marine fuel filtration system comprises a pump, a magnetic filter, a centrifugal filter, a dehydration filter and a PP cotton filter, wherein the pump is connected to the magnetic filter via a pipeline, the magnetic filter is connected to the centrifugal filter, the centrifugal filter is connected to the dehydration filter, and the dehydration filter is connected to the PP cotton filter.

[0009] As a preferred embodiment, it includes a PLC, and the PLC is communicatively connected with a pump, a magnetic filter, a centrifugal filter, a dehydration filter, a PP cotton filter, a first pressure sensor, and a second pressure sensor.

[0010] As a preferred implementation, the dehydration filter is equipped with a first pressure sensor.

[0011] As a preferred embodiment, the PP cotton filter is equipped with a second pressure sensor.

[0012] PLC can realize remote control, BMS monitoring, and timer function. The pressure sensor installed in each filter tank will stop feeding when the pressure is greater than 0.40Mpa, so as to realize remote supervision and control.

[0013] The magnetic filter mainly removes ferromagnetic particles and magnetotactic bacteria in the fuel.

[0014] As a preferred embodiment, the maximum rotation speed of the centrifugal filter is 4500r / min and the fuel flow rate is 50L / min.

[0015] Centrifugal filters are mainly used to remove sludge and large mechanical impurities > 5μm and water from fuel. The sludge and large mechanical impurities and water produced by oil centrifugation can be discharged from the drain port at the lower end of the centrifugal filter, and the centrifuge rotor can be taken out for cleaning and replacement.

[0016] The dehydration filter includes a polymer water-absorbing fiber filter element, which uses adsorption dehydration to mainly remove emulsified water and free water in the fuel. The free water removal rate can reach 99.7%, and the emulsified water removal rate can reach 99.2%. When the pressure reaches 0.4Mpa, the filter alarm reminds you to replace the filter element.

[0017] PP cotton filter, made of polypropylene polymer material, with an accuracy of 2μm, and a mechanical impurity removal rate of >2μm of 99.6%. Set the pressure difference alarm. When the pressure reaches 0.4Mpa, the filter alarm will remind you to replace the filter element.

[0018] The beneficial effects of the utility model are:

[0019] This solution improves the fuel dehydration method and adds a magnetic filtration process to achieve high-precision, low-consumables, low-cost, and high-efficiency dehydration, which greatly fills the gap in the technical barriers of traditional fuel filters and improves the shortcomings of existing technologies.

[0020] Compared with traditional fuel filters, this solution

[0021] (1) A magnetic filter is added to the front end to effectively remove magnetotactic bacteria in the fuel, preventing bacteria from decomposing additives and non-metallic materials in the fuel;

[0022] (2) The dehydration method using a centrifugal filter and a polymer water-absorbing filter element has overcome the technical difficulties of the traditional coalescence separation dehydration filter element, which has a small dirt holding capacity and low dehydration efficiency. While improving the fuel dehydration efficiency, it has also greatly reduced the amount of filter materials used in the terminal process and reduced the cost of consumables. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 It is a schematic structural diagram of an implementation method of the utility model.

[0025] In the figure, 1-magnetic filter; 2-centrifugal filter; 3-dehydration filter; 4-PP cotton filter; 5-PLC. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, the descriptions of "first", "second", etc. in the present invention are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0029] In the description of the embodiments, unless otherwise clearly specified and limited, the terms "disposed", "connected" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or it can be connected through an intermediate medium, or it can be a communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] like Figure 1 As shown, a marine fuel filtration system includes a pump, a magnetic filter 1, a centrifugal filter 2, a dehydration filter 3 and a PP cotton filter 4. The pump is connected to the magnetic filter 1 through a pipeline, the magnetic filter 1 is connected to the centrifugal filter 2, the centrifugal filter 2 is connected to the dehydration filter 3, and the dehydration filter 3 is connected to the PP cotton filter 4.

[0031] As a preferred embodiment, it includes PLC5, and the PLC5 is communicatively connected with the pump, the magnetic filter 1, the centrifugal filter 2, the dehydration filter 3, the PP cotton filter 4, the first pressure sensor, and the second pressure sensor.

[0032] As a preferred embodiment, the dehydration filter 3 is equipped with a first pressure sensor.

[0033] As a preferred embodiment, the PP cotton filter 4 is equipped with a second pressure sensor.

[0034] PLC5 can realize remote control, BMS monitoring, and timer function. The pressure sensor installed in each filter tank will stop feeding when the pressure is greater than 0.40Mpa, so as to realize remote supervision and control.

[0035] The magnetic filter 1 mainly removes ferromagnetic particles and magnetotactic bacteria in the fuel.

[0036] As a preferred embodiment, the maximum rotation speed of the centrifugal filter 2 is 4500r / min and the fuel flow rate is 50L / min.

[0037] The centrifugal filter 2 is mainly used to remove sludge and large mechanical impurities with a size of more than 5 μm and water from the fuel. The sludge and large mechanical impurities and water produced by oil centrifugation can be discharged from the drain port at the lower end of the centrifugal filter, and the centrifuge rotor can be taken out for cleaning and replacement.

[0038] The dehydration filter 3 includes a polymer water-absorbing fiber filter element, which adopts adsorption dehydration to mainly remove emulsified water and free water in the fuel. The free water removal rate can reach 99.7%, and the emulsified water removal rate can reach 99.2%. When the pressure reaches 0.4Mpa, the filter alarm reminds to replace the filter element.

[0039] PP cotton filter 4, made of polypropylene polymer material, with an accuracy of 2μm, and a mechanical impurity removal rate of >2μm of 99.6%. A differential pressure alarm is set. When the pressure reaches 0.4Mpa, the filter alarm reminds you to replace the filter element.

[0040] During operation, the fuel first passes through the magnetic filter 1 to remove ferromagnetic particles and magnetotactic bacteria in the fuel due to system wear, preventing microorganisms in the fuel from further damaging the fuel system. Then, it passes through the centrifugal filter 2 with a maximum speed of 4500r / min and a fuel flow rate of 50L / min to further remove large-particle mechanical impurities, sludge, and clear water > 5μm, thereby reducing the filtration pressure in the later stages. The sludge, large-particle mechanical impurities, and water produced by centrifugation can be discharged from the drain port at the lower end of the centrifugal filter, and the centrifuge rotor can be taken out for cleaning and replacement.

[0041] The fuel after centrifugation is deeply dehydrated by the polymer fiber filter element. This filter element adopts hydrophilic modified polypropylene fiber composite material. The fiber material is wound on the filter element frame at a certain density. The winding thickness is 10-15cm. The upper and lower end caps, filter core and frame are solidified with AB glue to ensure the air tightness. The polymer water-absorbing fiber filter element adopts adsorption dehydration, which mainly removes emulsified water and free water in the fuel. A single filtration can achieve a water removal rate of less than 300ppm. When the fiber reaches water absorption saturation, it will generate a certain pressure. When the pressure reaches 0.4Mpa, the filter alarm reminds to replace the filter element.

[0042] The dehydrated fuel enters the PP cotton filter 4, which has an accuracy of 2μm and can remove mechanical impurities larger than 2μm. The filter element is set with a pressure difference alarm. When the pressure reaches 0.4Mpa, the filter alarm reminds you to replace the filter element. The filtered fuel directly enters the fuel system.

[0043] The beneficial effects of the utility model are:

[0044] This solution improves the fuel dehydration method and adds a magnetic filtration process to achieve high-precision, low-consumables, low-cost, and high-efficiency dehydration, which greatly fills the gap in the technical barriers of traditional fuel filters and improves the shortcomings of existing technologies.

[0045] Compared with traditional fuel filters, this solution

[0046] (1) A magnetic filter is added to the front end to effectively remove magnetotactic bacteria in the fuel, preventing bacteria from decomposing additives and non-metallic materials in the fuel;

[0047] (2) The dehydration method using a centrifugal filter and a polymer water-absorbing filter element has overcome the technical difficulties of the traditional coalescence separation dehydration filter element, which has a small dirt holding capacity and low dehydration efficiency. While improving the fuel dehydration efficiency, it has also greatly reduced the amount of filter materials used in the terminal process and reduced the cost of consumables.

[0048] The above is only a preferred embodiment of the utility model, and is not intended to limit the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement; when the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the utility model.

Claims

1. A marine fuel filtration system, characterized in that: It includes a pump, a magnetic filter, a centrifugal filter, a dehydration filter and a PP cotton filter. The pump is connected to the magnetic filter through a pipeline, the magnetic filter is connected to the centrifugal filter, the centrifugal filter is connected to the dehydration filter, and the dehydration filter is connected to the PP cotton filter.

2. A marine fuel filtration system according to claim 1, characterized in that: The maximum speed through the centrifugal filter is 4500r / min and the fuel flow rate is 50L / min.

3. A marine fuel filtration system according to claim 1, characterized in that: The dehydration filter is equipped with a first pressure sensor.

4. A marine fuel filtration system according to claim 3, characterized in that: The PP cotton filter is equipped with a second pressure sensor.

5. A marine fuel filtration system according to claim 4, characterized in that: The system comprises a PLC, wherein the PLC is communicatively connected with a pump, a magnetic filter, a centrifugal filter, a dehydration filter, a PP cotton filter, a first pressure sensor, and a second pressure sensor.

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