Base oil filtering experiment device

Abstract

The utility model discloses a base oil filtering experiment device, and belongs to the technical field of oil product filtering. Comprising a pre-coating tank, a first filtering device and a second filtering device which are connected, a feeding hole in the top of the pre-coating tank is connected with the inlet end of a base oil delivery pipe; the bottom is connected with the two filtering devices; discharge holes in the bottoms of the two filtering devices are connected with the outlet end of the base oil delivery pipe through pipelines; a discharging hole of the first filtering device is connected with a feeding hole of the second filtering device; a valve is arranged on each pipeline; according to the experimental device, different experimental methods and experimental processes can be realized, key parameters such as an optimal filtering aid, adding and mixing proportions and the like can be obtained through experiments, the problem that an existing similar experimental device is simple and single in function is solved, waiting for a long time is not needed, and the experimental efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to oil filtering technical field, concretely is a base oil filtering experiment device. BACKGROUND

[0002] Coal-based Fischer-Tropsch synthesis base oil is mixed alkane made of coal as raw material by indirect liquefaction and Fischer-Tropsch synthesis, and five different viscosity grades of lubricating oil base oil products are produced by using American Chevron isomerization dewaxing patent technology. Unlike traditional petroleum smelting products, it has the advantages of high purity, no sulfur, no nitrogen, no aromatic hydrocarbon and no metal elements, and the characteristics of containing less paraffin and aromatic hydrocarbon, which meet the trend of future energy industry development, and are high-quality raw materials for producing high-quality lubricating oil base oil, white oil, low-condensation diesel and other products.

[0003] However, after the isomerization dewaxing device is in normal production, the heavy vacuum tower bottom oil becomes gray and black, and the base oil extracted from the side line turns green, which causes the new process product to be sold as inferior oil, resulting in poor economic benefits.

[0004] The existing filtering technology used in the field of oil filtering is divided into two types:

[0005] (1) Different precision filter cartridges are used to increase supporting equipment to form a filtering device, and the material is filtered according to the different precision of the filter cartridge. Such filtering can only simply filter the mechanical impurities in the oil. It is usually used for filtering and removing impurities of lubricating oil used in the unit.

[0006] (2) The blade filter is used with a pre-coating tank, a pre-coating pump, two material conveying pumps and other components. A certain proportion of mixed clay and diatomite are used to filter different types of wax produced by Fischer-Tropsch synthesis after pre-coating, focusing on filtering the catalyst particles contained in the wax, which can also be regarded as metal impurities.

[0007] The above filtering methods are all methods for filtering solid particles, and cannot filter non-solid particles.

[0008] In the first filtering method, although a higher precision filter screen is used for filtering, the product outer pipe is still not improved. The second method cannot be realized temporarily because there is no related technology.

[0009] And it is a problem in the industry to adopt which filtering system and parameters to effectively filter the base oil. In order to solve this problem, a certain proportion of filtering aids is usually used to filter the oil in the laboratory environment. Although this experimental method can also filter the oil to be clear, only the type and ratio of the corresponding filtering aid can be obtained through the experiment. The existing experimental device still needs to be combined with a long time of standing operation to complete the experimental process, and the efficiency is low. It has no positive significance for industrialization experiment and demonstration. Utility model content

[0010] The utility model overcomes the prior art's insufficient, propose a base oil filtration experimental device, solve the prior art's technical problems such as low efficiency, single function of oil product filtration experimental device.

[0011] In order to achieve the above object, the utility model is through the following technical scheme realizes:

[0012] A base oil filtration experimental device, including pre-coated jar, first filter device and second filter device, the pre-coated jar top feed inlet is connected with base oil external delivery pipe inlet end through first pipeline, and the pre-coated jar bottom is connected with the top feed inlet of first filter device and second filter device respectively through second pipeline, the bottom discharge port of first filter device is connected with third pipeline through first branch pipe, and the bottom discharge port of second filter device is connected with third pipeline through second branch pipe, and the end of third pipeline is connected with base oil external delivery pipe outlet end, and the bottom discharge port of first filter device is connected with the top feed inlet of second filter device through fourth pipeline,

[0013] The top feed inlet of first filter device is provided with no. Three valve, and the top feed inlet of second filter device is provided with no. Five valve, and no. Four valve is arranged on first branch pipe, and no. Six valve is arranged on second branch pipe, and no. Seven valve is arranged on fourth pipeline,

[0014] The first filter device and second filter device are same in structure, and are internally provided with filter screen, and the filter screen is coated with filter coating.

[0015] Further, no. One valve is arranged on first pipeline, and no. Two valve is arranged on third pipeline.

[0016] Further, no. Nine valve is arranged at the top feed inlet of pre-coated jar.

[0017] Further, the second pipeline is connected with wire sweep and high point exhaust port, and no. Eight valve is arranged on wire sweep and high point exhaust port.

[0018] Further, temporary sampling points are arranged on first branch pipe and second branch pipe.

[0019] Further, the pre-coated jar top is provided with pressure charging point.

[0020] Further, the first filter device and second filter device are internally provided with feed distributor, porcelain ball layer, upper layer grid plate, filter screen and lower layer grid plate from top to bottom.

[0021] Further, the porcelain ball layer comprises an upper porcelain ball layer and a lower porcelain ball layer, and the porcelain ball diameter of the upper porcelain ball layer is greater than that of the lower porcelain ball layer.

[0022] Further, the upper grid plate, the filter screen and the lower grid plate are connected with the inner walls of the first filter device and the second filter device by welding.

[0023] Further, the top and the bottom of the first filter device and the second filter device are connected by flanges and bolts.

[0024] The beneficial effects of the present application compared with the prior art are as follows:

[0025] The experimental device can realize various experimental methods and experimental processes, and can obtain the key parameters such as the best filtering aid, the adding and mixing ratio, the usage amount, and the raw material processing amount, thereby providing data support for the later industrialization demonstration and solving the problem of simple and single function of the existing similar experimental device. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of the base oil filtration experimental device of the present application;

[0027] Figure 2 is a schematic diagram of the structure of the first filter device or the second filter device;

[0028] REFERENCE NUMERALS:

[0029] 1, pre-coated tank; 2, first filter device; 3, second filter device; 4, first pipeline; 5, base oil delivery pipe; 6, second pipeline; 7, first branch pipe; 8, third pipeline; 9, second branch pipe; 10, fourth pipeline; 11, No. 3 valve; 12, No. 5 valve; 13, No. 4 valve; 14, No. 6 valve; 15, No. 7 valve; 16, filter screen; 17, No. 1 valve; 18, No. 2 valve; 19, No. 9 valve; 20, wire sweeping and high point exhaust port; 21, No. 8 valve; 22, temporary sampling point; 23, pressure charging point; 24, feed distributor; 25, upper grid plate; 26, lower grid plate; 27, upper porcelain ball layer; 28, lower porcelain ball layer. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical schemes and beneficial effects to be solved by the utility model clearer and more apparent, the utility model will be further described in detail in combination with embodiments and drawings. It should be understood that the specific embodiments described herein are only used to explain the utility model and not used to limit the utility model. The technical scheme of the utility model will be described in detail below in combination with embodiments and drawings, but the protection scope is not limited by this.

[0031] Referring to Figure 1 and Figure 2 , the embodiment provides a base oil filtration experiment device, which comprises a pre-coating tank 1, a first filtration device 2 and a second filtration device 3. The pre-coating tank 1 is connected with the inlet end of a base oil delivery pipe 5 through a first pipeline 4. The bottom of the pre-coating tank 1 is connected with the top feed inlet of the first filtration device 2 and the second filtration device 3 through a second pipeline 6. The bottom discharge outlet of the first filtration device 2 is connected with a third pipeline 8 through a first branch pipe 7. The bottom discharge outlet of the second filtration device 3 is connected with the third pipeline 8 through a second branch pipe 9. The end of the third pipeline 8 is connected with the outlet end of the base oil delivery pipe 5. The bottom discharge outlet of the first filtration device 2 is connected with the top feed inlet of the second filtration device 3 through a fourth pipeline 10. The top and bottom of the first filtration device 2 and the second filtration device 3 are connected by flanges and bolts.

[0032] A first valve 17 is arranged on the first pipeline 4, and a second valve 18 is arranged on the third pipeline 8. A third valve 11 is arranged at the top feed inlet of the first filtration device 2. A fifth valve 12 is arranged at the top feed inlet of the second filtration device 3. A fourth valve 13 is arranged on the first branch pipe 7. A sixth valve 14 is arranged on the second branch pipe 9. A seventh valve 15 is arranged on the fourth pipeline 10. A wire sweeping and high point exhaust port 20 is connected with the second pipeline 6. An eighth valve 21 is arranged on the wire sweeping and high point exhaust port 20. A ninth valve 19 is arranged at the top feed inlet of the pre-coating tank 1.

[0033] Specifically, the first valve 17 is a front guide shower of a base oil delivery adjusting valve, the second valve 18 is a rear guide shower of the base oil delivery adjusting valve, the third valve 11 is an inlet hand valve of the first filtration device 2, the fourth valve 13 is an outlet hand valve of the first filtration device 2, the fifth valve 12 is an inlet hand valve of the second filtration device 3, the sixth valve 14 is an outlet hand valve of the second filtration device 3, the seventh valve 15 is an inlet hand valve of the second filtration device 3 from the outlet of the first filtration device 2, the eighth valve 21 is a hand valve at the wire sweeping and high point exhaust port 20 and is installed at the highest point of the whole device, and the ninth valve 19 is an inlet hand valve of the pre-coating tank 1.

[0034] The first filter device 2 and the second filter device 3 are identical in structure, and are provided with a feed distributor 24, a porcelain ball layer, an upper grid plate 25, a filter screen 16 and a lower grid plate 26 from top to bottom. The upper grid plate 25, the filter screen 16 and the lower grid plate 26 are integrally connected with the inner wall of the first filter device 2 and the second filter device 3 by welding.

[0035] The filter screen 16 is coated with a filter coating layer; the thickness and type of the filter coating layer are determined by the purpose of the experiment, and the specification of the filter screen 16 is selected according to the filter coating layer.

[0036] The porcelain ball layer includes an upper porcelain ball layer 27 and a lower porcelain ball layer 28, and the porcelain ball diameter of the upper porcelain ball layer 27 is greater than that of the lower porcelain ball layer 28.

[0037] The pre-coating tank 1 is provided with a pressure charging point 23 at the top.

[0038] The first branch pipe 7 and the second branch pipe 9 are both provided with a temporary sampling point 22.

[0039] The working principle of the base oil filtration experiment device is as follows:

[0040] The material enters the experiment device from the base oil delivery pipe 5 and a first valve 17 on the first pipeline 4, and then returns to the base oil product line through a second valve 18, so as to realize online filtration experiment of the base oil by using the pressure difference between the first valve 17 and the second valve 18.

[0041] (1) The third valve 11 and the fourth valve 13 are opened, the fifth valve 12 and the sixth valve 14 are opened, and the seventh valve 15 is closed, a filter coating layer of a certain thickness of different proportions of clay and diatomite or other filter agents is pre-coated on the filter screen 16 in the first filter device 2 and the second filter device 3 respectively, or other filter agents are filled on the filter screen 16 to filter the material, and the temporary sampling point 22 at the outlet of each is used for sampling observation and comparison, so as to test the filtration effect of different proportions of clay and diatomite or other filter agents on the base oil, and the pressure difference before and after the filter coating layer, and the law is summarized by comparison. This step is intended to experiment the best filtration ratio.

[0042] (2) The third valve 11 is opened, the fourth valve 13 is closed, the fifth valve 12 is closed, the sixth valve 14 is opened, and the seventh valve 15 is opened, so as to realize series filtration of the first filter device 2 and the second filter device 3, and the temporary sampling point 22 at the outlet of the second filter device 3 is used for sampling observation and comparison of the filtration effect. This step is intended to experiment the best thickness of the filter coating layer and the pressure difference before and after the filter coating layer.

[0043] (3) The filter screen inside the first filter device 2 and the second filter device 3 is not pre-coated, a certain amount of mixed clay and diatomite or other filter aids is added in the pre-coating tank 1 in proportion, the mixed material is delivered to the first filter device 2 and the second filter device 3 for filtering in a way of nitrogen gas line scanning, and then the filtering effect is experimented.

[0044] First, the filtering mode (1) is used to verify whether a certain proportion of clay and diatomite mixed coating or other filter aids can realize the decolorization of base oil products; on the premise of verifying the feasibility, the filtering mode (2) is used to experiment the optimal mixing ratio of clay and diatomite and the optimal coating thickness or the loading amount of other filter aids under the premise of pressure difference guarantee; the filtering mode (3) is closer to industrial production; through the above various experimental methods and experimental processes, the optimal filter aid, addition and mixing ratio, usage amount, raw material processing amount and other key parameters are experimented, data support is provided for later industrial demonstration, the problem of simple and single function of the existing similar experimental device is solved, and the internal structure of the first filter device 2 and the second filter device 3 is set, so that a long waiting time is not needed, and the experimental efficiency is improved.

[0045] The above is the further detailed description of the utility model made in combination with the specific preferred embodiments, and the specific embodiments of the utility model cannot be limited to this, for ordinary skilled persons in the technical field to which the utility model belongs, under the premise of not departing from the utility model, a number of simple deductions or substitutions can be made, and all should be regarded as belonging to the utility model, and the patent protection range is determined by the submitted claims.

Claims

1. A base oil filtration test apparatus characterized by, It includes pre-coated tank (1), first filter device (2) and second filter device (3);The pre-coated tank (1) top feed inlet is connected with the inlet end of base oil delivery pipe (5) through first pipeline (4);The pre-coated tank (1) bottom is connected with the top feed inlet of first filter device (2) and second filter device (3) respectively through second pipeline (6);The bottom discharge outlet of first filter device (2) is connected with third pipeline (8) through first branch pipe (7), the bottom discharge outlet of second filter device (3) is connected with third pipeline (8) through second branch pipe (9), and the end of third pipeline (8) is connected with the outlet end of base oil delivery pipe (5);The bottom discharge outlet of first filter device (2) is connected with the top feed inlet of second filter device (3) through fourth pipeline (10); The top feed inlet of first filter device (2) is provided with three-way valve (11), and the top feed inlet of second filter device (3) is provided with five-way valve (12);The first branch pipe (7) is provided with four-way valve (13), and the second branch pipe (9) is provided with six-way valve (14);The fourth pipeline (10) is provided with seven-way valve (15); The first filter device (2) and second filter device (3) are the same structure, and are provided with filter screen (16) inside, and the filter screen (16) is coated with filter coating.

2. The base oil filtration test apparatus according to claim 1, wherein The first pipeline (4) is provided with one-way valve (17), and the third pipeline (8) is provided with two-way valve (18).

3. The base oil filtration test apparatus according to claim 1, wherein The top feed inlet of pre-coated tank (1) is provided with nine-way valve (19).

4. The base oil filtration test apparatus according to claim 1, wherein The second pipeline (6) is connected with wire sweeping and high point exhaust port (20), and the wire sweeping and high point exhaust port (20) is provided with eight-way valve (21).

5. The base oil filtration test apparatus of claim 1, wherein The first branch pipe (7) and second branch pipe (9) are both provided with temporary sampling point (22).

6. The base oil filtration test apparatus of claim 1, wherein The top of pre-coated tank (1) is provided with pressure charging point (23).

7. The base oil filtration test apparatus of claim 1, wherein The first filter device (2) and second filter device (3) are both provided with feed distributor (24), porcelain ball layer, upper layer grid plate (25), filter screen (16) and lower layer grid plate (26) from top to bottom.

8. The base oil filtration test apparatus according to claim 7, wherein The porcelain ball layer includes upper porcelain ball layer (27) and lower porcelain ball layer (28), and the porcelain ball diameter of upper porcelain ball layer (27) is greater than that of lower porcelain ball layer (28).

9. The base oil filtration test apparatus of claim 7, wherein The upper layer grid plate (25), filter screen (16) and lower layer grid plate (26) are all connected with the inner wall of first filter device (2) and second filter device (3) by welding and integrated.

10. The base oil filtration test apparatus of claim 1, wherein The top and bottom of first filter device (2) and second filter device (3) are connected by flange and bolt.

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