CN214050733U

CN214050733U - Oil filtering system

Info

Publication number: CN214050733U
Application number: CN202022225749.XU
Authority: CN
Inventors: 路建伟; 刘威; 李维
Original assignee: Kunshan Wsd Environmental Protection Equipment Co ltd
Current assignee: Kunshan Wsd Environmental Protection Equipment Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-08-27
Anticipated expiration: 2030-10-09

Abstract

The application relates to an oil filtration system, it includes: the oil path comprises an oil inlet path, an oil outlet path, a first oil path, a second oil path and a third oil path; the oil inlet oil path is provided with an oil inlet valve, an oil absorption filter and an oil pump, the oil outlet oil path is provided with an oil outlet valve, and the first oil path, the second oil path and the third oil path are respectively connected with the oil inlet oil path and the oil outlet oil path; the first oil way comprises a prefilter and a coalescence separator which are arranged behind the oil pump along the oil flow direction; the second oil way comprises an ion exchange filter and a collection filter which are arranged behind the oil pump along the flow direction of the oil; the third oil path comprises a charging flow mixer and a collecting filter which are arranged behind the oil pump along the flow direction of the oil; the second oil passage and the third oil passage share the same collecting filter, or different collecting filters are used, respectively. The oil filtering system can remove impurities, paint films, colloidal substances and water in oil without arranging a plurality of oil filtering devices, reduces the oil filtering cost and increases the oil filtering efficiency.

Description

Oil filtering system

Technical Field

The utility model relates to an oil filtering system belongs to oil clarification plant field.

Background

Impurities, paint films, colloidal substances and water are brought into oil products after the machine operates and cannot be reused, the operation of the machine can be influenced by the existence of the impurities and the service life of the machine is damaged, and therefore the oil filter is required to filter the oil liquid with the impurities and the water to obtain pure oil liquid, and secondary utilization is facilitated. However, the existing oil filter is often used only for removing water and impurities, or, alternatively, for removing paint films, and impurities, paint films, gums, and water cannot be removed by one device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an oil filtering system can all detach impurity, paint film, colloidal matter and water in the fluid, need not to set up a plurality of oil filter devices, has reduced the oil strain cost and has increased oil strain efficiency.

In order to achieve the above purpose, the utility model provides a following technical scheme: an oil filtration system comprising:

the oil path comprises an oil inlet path, an oil outlet path, a first oil path, a second oil path and a third oil path; the oil inlet oil path is provided with an oil inlet valve, an oil absorption filter and an oil pump, the oil outlet oil path is provided with an oil outlet valve, and the first oil path, the second oil path and the third oil path are respectively connected with the oil inlet oil path and the oil outlet oil path;

the first oil way comprises a pre-filter and a coalescence separator which are arranged behind the oil pump along the oil flow direction; the second oil way comprises an ion exchange filter and a collection filter which are arranged behind the oil pump along the oil flow direction; the third oil path comprises a charging flow mixer and a collecting filter which are arranged behind the oil pump along the flow direction of the oil; the second and third oil passages share the same collecting filter, or different collecting filters are used, respectively.

Furthermore, the oil filtering system comprises a first oil suction filter, a second oil suction filter, a first oil pump and a second oil pump, wherein the first oil pump and the second oil pump are arranged behind the first oil suction filter and the second oil suction filter respectively along the oil flow direction.

Further, the first oil passage and the third oil passage are arranged behind the first oil pump in the oil flow direction; the second oil passage is arranged behind the second oil pump along the oil flow direction.

Further, the second oil passage includes at least two of the ion exchange filters.

Further, a plurality of the ion filters are arranged in series or in parallel.

Further, the coalescence separator comprises a shell, a coalescence filter element and a separation filter element which are arranged in the shell, a water storage chamber communicated with the shell, and a first oil outlet communicated with the oil outlet oil way.

Further, the coalescence separator also comprises a second oil outlet which is communicated with the oil inlet oil way.

Further, the charge flow mixer comprises an inlet part, an outlet part and two branch channels communicated with the inlet part and the outlet part, wherein positive and negative high-voltage electricity is loaded on the inner wall surfaces of the two branch channels respectively.

Further, the oil filtering system further comprises a fourth oil path, and the fourth oil path is communicated with the oil outlet oil path and the oil inlet oil path, so that oil in the oil outlet oil path flows into the oil inlet oil path to be filtered again.

Furthermore, a detector is arranged on the oil outlet oil way and/or the fourth oil way to detect the content of impurities in the oil.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses an oil filtration system comes to carry out filtering separation to water and impurity, small particulate matter, paint film and colloidal matter etc. respectively through integrated first oil circuit, second oil circuit and third oil circuit, so this oil filtration system can all detach impurity, paint film, colloidal matter and water in the fluid, need not to set up a plurality of oil filter equipment, has reduced the oil strain cost and has increased oil strain efficiency.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Fig. 1 is a flow chart illustrating a structure of an oil filtering system according to an embodiment of the present invention;

FIG. 2 is a schematic illustration of a coalescer in the oil filtration system of FIG. 1;

fig. 3 is a schematic structural view of a charge flow mixer in the oil filtering system shown in fig. 1.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

It should be noted that: the terms such as "upper", "lower", "left", "right", "inner" and "outer" of the present invention are described with reference to the drawings, and are not intended to be limiting terms.

Referring to fig. 1 to 3, the oil filtering system shown in this embodiment is integrated by multiple oil paths, and specifically includes an oil inlet path 1, an oil outlet path 2, a first oil path 3, a second oil path 4, and a third oil path 5, where the oil inlet path 1 is provided with an oil inlet valve 11, an oil suction filter 12, and an oil pump 13, the oil outlet path 2 is provided with an oil outlet valve 21, and the first oil path 3, the second oil path 4, and the third oil path 5 are respectively connected to the oil inlet path 1 and the oil outlet path 2. The oil inlet valve 11 is opened, the oil liquid flows into the oil absorption filter 12 under the action of the oil pump 13, and then large particles of insoluble impurities are filtered.

In the present embodiment, the first oil path 3 is used for removing insoluble impurities and water from the oil, and specifically, the first oil path 3 includes a pre-filter 31 and a coalescing separator 32 which are disposed after the oil pump 13 along the oil flow direction. The second oil passage 4 includes an ion exchange filter 41 and a collection filter 42 disposed after the oil pump 13 in the oil flow direction for removing varnish and colloids from the oil. The third oil path 5 includes a charge flow mixer 51 and a collection filter 42 disposed after the oil pump 13 in the oil flow direction for removing small particle insoluble impurities from the oil.

In order to avoid the need to frequently clean the oil suction filter 12, the oil filter system is provided with a first oil suction filter 121, a second oil suction filter 122, and a first oil pump 131 and a second oil pump 132 respectively arranged after the first oil suction filter 121 and the second oil suction filter 122 along the oil flow direction in the present embodiment. The first oil passage 3 and the third oil passage 5 are provided after the first oil pump 131 in the oil flow direction; the second oil passage 4 is provided after the second oil pump 132 in the oil flow direction. By additionally arranging the second oil suction filter 122 and the second oil pump 132 to be in butt joint with the second oil path 4, frequent cleaning of the first oil suction filter 121 can be avoided, and the efficiency of oil filtering is ensured.

Shear stresses in the lubrication system can cause the oil to auto-degrade, which is the root cause of the sludge/varnish contamination. When these stresses are present, soft contamination can result, leading to control failure. For turbines, the low flow areas present in the lubrication system are particularly susceptible to degradation of oil quality. During turbine operation, these oil degradation by-products are highly soluble and not easily removed by the balanced charge technique due to the high oil temperature, and therefore soluble contaminants are removed by providing ion exchange filter 41. The ion exchange filter 41 performs functional group replacement of acidic oxides formed in the fluid by releasing ions, thereby rapidly removing a soluble paint film and reducing the MPC value. The fluid after being adsorbed and filtered by the ion exchange filter 41 is finally filtered by the collection filter 42, and oil with excellent oil quality can be obtained. In the present embodiment, two ion exchange filters 41 are included, and the ion exchange filters 41 are preferably arranged in series, but may be arranged in parallel in another embodiment.

In the present embodiment, the coalescing separator 32 includes a housing 321, a coalescing filter element 322 and a separating filter element 323 provided in the housing 321, a water storage chamber 324 communicating with the housing 321, and a first oil outlet 325 communicating with the oil outlet passage 2, which are of conventional structure and will not be described in detail. The oil liquid enters the first oil suction filter 121 under the action of the first oil pump 131, after large-particle insoluble impurities are removed, the oil liquid enters the pre-filter 31 to remove the insoluble impurities with common sizes, and then enters the coalescence separator 32, most of moisture in the oil liquid is removed by utilizing the coalescence separation principle, and the moisture is stored in the water storage chamber 324 and is discharged from the water discharge pipeline 326; the oil flows from the first oil outlet 325 to the oil outlet valve 21.

In the present embodiment, the coalescer separator 32 further includes a second oil outlet 327, and the second oil outlet 327 is connected to the suction filter 12 through a drain valve 328 and a pipe. This design may facilitate filter replacement for coalescer separator 32 by opening drain valve 328 and pumping out residual oil in coalescer separator 32 through second oil outlet 327 when filter replacement is desired.

In the present embodiment, the charge flow mixer 51 includes an inlet 511, an outlet 512, and two branch passages 513 connecting the inlet 511 and the outlet 512, and positive and negative high voltage electricity is loaded on inner wall surfaces of the two branch passages 513, respectively. When oil enters the charging mixer 51, the fluid carrying small particles is divided into two branches, high-voltage electrodes arranged on the branches load and charge the small particles respectively, positive charges are loaded on one branch runner 513, negative charges are loaded on the other branch runner 513, then the particles loaded with opposite charges are mixed and accumulated again at the outlet part 512, the positive charges and the negative charges are mutually attracted and accumulated together to form large-size particles, the particles with increased sizes are easily captured by a traditional precise mechanical filter, and therefore the small particles which are not easy to filter are more easily filtered and removed. Therefore, in the present embodiment, a collection filter 42 is provided in the third oil passage 5 for trapping the collected particulate matter.

In order to avoid the occurrence of backflow, the check valve 100 is arranged in the oil outlet valve 21, the first oil path 3 and the second oil path 4, so that the normal operation of the oil filter is guaranteed, and the safety of the equipment is improved.

In the present embodiment, the oil filtering system further includes a fourth oil path 6, and the fourth oil path 6 communicates the oil outlet path 2 and the oil inlet path 1, so that the oil in the oil outlet path 2 flows into the oil inlet path 1 for re-filtering. Preferably, a detector 61 is arranged on the oil outlet path 2 and/or the fourth oil path 6 to detect the content of impurities in the oil, and determine whether the oil needs to be filtered again according to the detection result.

The oil filtering system of the embodiment can control the whole oil purifying process through an electric controller (not shown).

The present embodiment combines the charge balancing technology, the coalescence-separation technology and the exchange resin adsorption technology, and has submicron-level purification function, fast speed of decontamination and water removal, and high precision (capable of removing 0.02 μm of contaminants). The van der Waals effect and the coulomb effect between the active sites of the adsorbent and the charged ions, particles or polar molecules are utilized to selectively capture the ions, particles or molecules harmful to the oil liquid, so that the aim of purifying and regenerating the oil liquid is fulfilled. The resin adsorption regeneration can not only remove the paint film degradation product dissolved in the oil, but also quickly recover the physical and chemical indexes of the oil, thereby greatly prolonging the service life of the oil. By utilizing the principle of coalescence and separation, the water in the oil can be quickly removed.

In summary, the following steps: the utility model discloses an oil filtration system comes to carry out filtering separation to water and impurity, small particulate matter, paint film and colloidal matter etc. respectively through integrated first oil circuit, second oil circuit and third oil circuit, so this oil filtration system can all detach impurity, paint film, colloidal matter and water in the fluid, need not to set up a plurality of oil filter equipment, has reduced the oil strain cost and has increased oil strain efficiency.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An oil filtration system, comprising:

2. An oil filtration system as claimed in claim 1, comprising a first oil suction filter, a second oil suction filter, and first and second oil pumps arranged after the first and second oil suction filters, respectively, in the oil flow direction.

3. An oil filtration system as claimed in claim 2, wherein the first and third oil passages are disposed after the first oil pump in the oil flow direction; the second oil passage is arranged behind the second oil pump along the oil flow direction.

4. An oil filtration system as claimed in claim 3, wherein the second oil path comprises at least two of the ion exchange filters.

5. An oil filtration system as claimed in claim 4, wherein a plurality of the ion exchange filters are arranged in series or in parallel.

6. An oil filtration system as claimed in claim 1 or 3, wherein the coalescing separator comprises a housing, coalescing and separating filter elements disposed within the housing, a water storage chamber in communication with the housing, and a first oil outlet in communication with the oil outlet passage.

7. The oil filtration system of claim 6 wherein the coalescer separator further comprises a second oil outlet in communication with the oil inlet passage.

8. An oil filtration system as claimed in claim 1, wherein the charge flow mixer comprises an inlet part, an outlet part and two branch channels communicating the inlet part and the outlet part, and the inner wall surfaces of the two branch channels are loaded with positive and negative high-voltage electricity respectively.

9. An oil filtration system as claimed in claim 1, further comprising a fourth oil path communicating the outlet oil path and the inlet oil path such that oil in the outlet oil path flows into the inlet oil path for re-filtration.

10. An oil filtration system as claimed in claim 9, wherein a detector is provided on the outlet oil path and/or the fourth oil path to detect the content of impurities in the oil.