阅读说明：本技术 管输成品油中机械杂质的处理方法及系统 (Method and system for treating mechanical impurities in pipe transportation product oil ) 是由 邢建文 赵青 耿健 董红军 魏安河 崔秀国 李姣姣 石胜明 李�杰 于 2018-07-16 设计创作，主要内容包括：本发明公开了一种管输成品油中机械杂质的处理方法及系统,属于管输成品油处理领域。该管输成品油中机械杂质的处理方法包括：打开第一阀门,使第一油品储罐中的含机械杂质管输成品油进入主管线；采用第一过滤器对含机械杂质管输成品油进行机械过滤处理,得到第一中间成品油；采用第二过滤器对第一中间成品油进行聚结过滤处理,得到第二中间成品油；采用第三过滤器对第二中间成品油进行分离过滤处理,得到除去机械杂质后的管输成品油,并输入至第二油品储罐。通过对含机械杂质管输成品油顺次进行机械过滤处理、聚结过滤处理、分离过滤处理,能够高效地将管输成品油中的机械杂质除去,从而确保管输成品油的质量达标。(The invention discloses a method and a system for treating mechanical impurities in pipe transportation product oil, and belongs to the field of pipe transportation product oil treatment. The treatment method of mechanical impurities in the pipe transportation product oil comprises the following steps: opening a first valve to enable the mechanical impurity-containing pipe in the first oil product storage tank to convey the product oil into a main pipeline; mechanically filtering the pipe-conveying product oil containing mechanical impurities by using a first filter to obtain first intermediate product oil; carrying out coalescence filtering treatment on the first intermediate product oil by adopting a second filter to obtain second intermediate product oil; and separating and filtering the second intermediate product oil by using a third filter to obtain the pipe transportation product oil without mechanical impurities, and inputting the pipe transportation product oil into a second oil product storage tank. Mechanical impurities in the pipe transportation product oil can be efficiently removed by sequentially carrying out mechanical filtration treatment, coalescence filtration treatment and separation filtration treatment on the pipe transportation product oil containing the mechanical impurities, so that the quality of the pipe transportation product oil is ensured to reach the standard.)

1. A method for treating mechanical impurities in pipe transportation product oil is characterized by comprising the following steps:

opening a first valve (7) to enable the mechanical impurity-containing pipe in the first oil product storage tank (1) to convey the product oil into a main pipeline (6);

mechanically filtering the mechanical impurity-containing pipe transportation product oil by using a first filter (2) to obtain first intermediate product oil;

carrying out coalescence filtering treatment on the first intermediate product oil by adopting a second filter (3) to obtain second intermediate product oil;

and (3) separating and filtering the second intermediate product oil by using a third filter (4) to obtain the pipe-conveying product oil without mechanical impurities, and conveying the pipe-conveying product oil into a second oil product storage tank (5).

2. The method for processing mechanical impurities in pipe transportation product oil as claimed in claim 1, further comprising:

and pressurizing the mechanical impurity-containing pipe-conveyed product oil in the first oil product storage tank (1) through a sliding vane pump (8) so as to enter the first filter (2) for mechanical filtration treatment.

3. The method for treating mechanical impurities in pipe transportation product oil as claimed in claim 1, further comprising:

opening a third valve (13) on a first branch pipeline (10) every 1.5-2.5 hours to obtain and detect a first intermediate product oil sample;

and/or opening a third valve (13) on a second branch pipeline (11) to obtain and detect a second intermediate product oil sample;

and/or opening a third valve (13) on a third branch pipeline (12), and acquiring and detecting the pipe transportation product oil sample after the mechanical impurities are removed.

4. The method for treating mechanical impurities in pipe transportation product oil as claimed in claim 1, further comprising:

opening a third valve (13) on the first branch pipeline (10) every 1.5-2.5 hours, and discharging sewage and releasing pressure of the first filter (2);

and/or opening a third valve (13) on a second branch pipeline (11) to drain and depressurize the second filter (3);

and/or opening a third valve (13) on a third branch line (12) to drain and depressurize the third filter (4).

5. The system for treating the mechanical impurities in the pipe transportation product oil is applied to the method for treating the mechanical impurities in the pipe transportation product oil as claimed in any one of claims 1 to 4, and comprises the following steps: the device comprises a first oil storage tank (1), a first filter (2), a second filter (3), a third filter (4), a second oil storage tank (5), a main pipeline (6) and a first valve (7);

the outlet of the first oil product storage tank (1) is communicated with the inlet of the second oil product storage tank (5) through the main pipeline (6);

the first valve (7), the first filter (2), the second filter (3) and the third filter (4) are sequentially arranged on the main pipeline (6);

the first filter element of the first filter (2) is a mechanical filter element;

the second filter element of the second filter (3) is a coalescing filter element;

and the third filter element of the third filter (4) is a separation filter element.

6. The system for treating mechanical impurities in pipe-conveyed product oil according to claim 5, wherein the aperture of the filter hole of the first filter element is 18-22 μm, the aperture of the filter hole of the second filter element is 4-6 μm, and the aperture of the filter hole of the third filter element is 4-6 μm.

7. The system for treating mechanical impurities in pipe transportation product oil according to claim 6, wherein the diameter of the first filter element is 140-160 mm, and the length of the first filter element is 910-920 mm;

the diameter of the second filter element is 140-160 mm, and the length of the second filter element is 740-760 mm;

the diameter of the third filter element is 140-160 mm, and the length of the third filter element is 1100-1130 mm.

8. The system for processing mechanical impurities in pipe-transportation product oil of claim 5, further comprising: a vane pump (8);

the sliding vane pump (8) is arranged on the main pipeline (6) between the first valve (7) and the first filter (2).

9. The system for processing mechanical impurities in pipe-transportation product oil of claim 5, further comprising: a second valve (9);

the second valve (9) is arranged on the main pipeline (6) between the third filter (4) and the second oil product storage tank (5).

10. The system for treating mechanical impurities in the pipe transportation product oil according to any one of claims 5 to 9, further comprising: a first branch line (10), a second branch line (11), a third branch line (12), and three third valves (13);

one end of the first branch line (10) communicates with the main line (6) between the first filter (2) and the second filter (3);

one end of the second branch line (11) communicates with the main line (6) between the second filter (3) and the third filter (4);

one end of the third branch line (12) communicates with the main line (6) at the outlet of the third filter (4);

the three third valves (13) are respectively disposed on the first branch line (10), the second branch line (11), and the third branch line (12).

Technical Field

The invention relates to the field of treatment of pipe transportation product oil, in particular to a method and a system for treating mechanical impurities in the pipe transportation product oil.

Background

The pipe transportation product oil generally contains mechanical impurities which can not meet the requirements of national oil product standards, so that the mechanical impurities in the pipe transportation product oil need to be treated to ensure that the impurity indexes in the pipe transportation product oil are within the range of the national oil product standards.

Disclosure of Invention

The embodiment of the invention provides a method and a system for treating mechanical impurities in pipeline product oil, which can solve the technical problem. The specific technical scheme is as follows:

in one aspect, an embodiment of the present invention provides a method for processing mechanical impurities in pipe transportation product oil, where the method for processing mechanical impurities in pipe transportation product oil includes:

opening a first valve to enable the mechanical impurity-containing pipe in the first oil product storage tank to convey the product oil into a main pipeline;

mechanically filtering the mechanical impurity-containing pipe transportation product oil by using a first filter to obtain first intermediate product oil;

carrying out coalescence filtering treatment on the first intermediate product oil by adopting a second filter to obtain second intermediate product oil;

and separating and filtering the second intermediate product oil by using a third filter to obtain the pipe transportation product oil without mechanical impurities, and inputting the pipe transportation product oil into a second oil product storage tank.

In one possible design, the method for processing mechanical impurities in the product oil in pipeline further comprises:

and pressurizing the product oil conveyed by the pipe containing the mechanical impurities in the first oil product storage tank through a sliding vane pump so as to enter the first filter for mechanical filtration treatment.

In one possible design, the processing method further includes:

opening a third valve on a first branch pipeline every 1.5-2.5 hours to obtain and detect a first intermediate product oil sample;

and/or opening a third valve on a second branch pipeline to obtain and detect a second intermediate product oil sample;

and/or opening a third valve on a third branch pipeline, and obtaining and detecting the pipe transportation product oil sample after the mechanical impurities are removed.

In one possible design, the processing method further includes:

opening a third valve on the first branch pipeline every 1.5-2.5 hours, and discharging sewage and releasing pressure of the first filter;

and/or opening a third valve on a second branch pipeline, and carrying out blowdown and pressure relief on the second filter;

and/or opening a third valve on a third branch pipeline to discharge and release the pressure of the third filter.

In another aspect, an embodiment of the present invention provides a system for processing mechanical impurities in finished oil for pipe transportation, where the system for processing mechanical impurities in finished oil for pipe transportation is applied to any one of the above-mentioned methods for processing mechanical impurities in finished oil for pipe transportation, and the system for processing mechanical impurities in finished oil for pipe transportation includes: the system comprises a first oil product storage tank, a first filter, a second filter, a third filter, a second oil product storage tank, a main pipeline and a first valve;

the outlet of the first oil product storage tank is communicated with the inlet of the second oil product storage tank through the main pipeline;

the first valve, the first filter, the second filter and the third filter are sequentially arranged on the main pipeline;

the first filter element of the first filter is a mechanical filter element;

the second filter element of the second filter is a coalescing filter element;

and the third filter element of the third filter is a separation filter element.

In one possible design, the aperture of the filtering hole of the first filter element is 18-22 μm, the aperture of the filtering hole of the second filter element is 4-6 μm, and the aperture of the filtering hole of the third filter element is 4-6 μm.

In one possible design, the diameter of the first filter element is 140-160 mm, and the length of the first filter element is 910-920 mm;

the diameter of the second filter element is 140-160 mm, and the length of the second filter element is 740-760 mm;

the diameter of the third filter element is 140-160 mm, and the length of the third filter element is 1100-1130 mm.

In one possible design, the system for treating mechanical impurities in the product oil transported by the pipeline further comprises: a sliding vane pump;

the sliding vane pump is arranged on the main pipeline between the first valve and the first filter.

In one possible design, the system for treating mechanical impurities in the product oil transported by the pipeline further comprises: a second valve;

the second valve is arranged on the main pipeline between the third filter and the second oil product storage tank.

In one possible design, the system for treating mechanical impurities in the product oil transported by the pipeline further comprises: a first branch line, a second branch line, a third branch line, and three third valves;

one end of the first branch line communicates with the main line between the first filter and the second filter;

one end of the second branch line communicates with the main line between the second filter and the third filter;

one end of the third branch line is communicated with the main line at the outlet of the third filter;

the three third valves are respectively disposed on the first branch line, the second branch line, and the third branch line.

The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:

according to the method for treating the mechanical impurities in the pipe transportation product oil provided by the embodiment of the invention, the mechanical filtration treatment, the coalescence filtration treatment and the separation filtration treatment are sequentially carried out on the pipe transportation product oil containing the mechanical impurities, so that the mechanical impurities in the pipe transportation product oil can be efficiently removed, and the quality of the pipe transportation product oil is ensured to reach the standard. The method for treating the mechanical impurities in the pipe-conveyed finished oil is simple, has a good treatment effect, and is suitable for a finished oil pipeline system which is required to be subjected to tank dumping treatment in a station and causes the mechanical impurities to exceed the standard due to a long period.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a flow chart of a method for treating mechanical impurities in a pipeline product oil according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of a system for treating mechanical impurities in a pipeline product oil according to an embodiment of the present invention.

Wherein the reference numerals denote:

1-a first oil product storage tank,

2-the first filter is used for filtering the waste water,

3-a second filter, which is arranged in the first filter,

4-a third filter, wherein the third filter is provided with a filter,

5-a second oil product storage tank,

6-a main pipeline, wherein the main pipeline is connected with a pipeline,

7-the first valve is set in the first valve,

8-a slide-vane pump, wherein,

9-a second valve, which is arranged in the second valve,

10-the first branch line of the first branch line,

11-the second branch line of the first branch line,

12-a third branch line which is connected to the first branch line,

13-third valve.

Detailed Description

Unless defined otherwise, all technical terms used in the examples of the present invention have the same meaning as commonly understood by one of ordinary skill in the art. Before further detailed description of embodiments of the present invention, definitions are given for some terms used to understand examples of the present invention.

The mechanical filtration treatment refers to: the particles with larger particle size are filtered out through the blocking effect of the filter holes. Coalescence filtering refers to: filtering out particles with smaller particle size by means of demulsification, coalescence and the like. The separation and filtration means that: filtering out particles with smaller particle size through a separation filter membrane or a separation filter screen.

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In one aspect, an embodiment of the present invention provides a method for treating mechanical impurities in a product oil for pipe transportation, as shown in fig. 1, the method for treating mechanical impurities in a product oil for pipe transportation includes:

step 101, opening a first valve 7 to enable the mechanical impurity-containing pipe in the first oil product storage tank 1 to convey the product oil into a main pipeline 6.

And 102, mechanically filtering the pipe transportation product oil containing the mechanical impurities by using a first filter 2 to obtain first intermediate product oil.

And 103, performing coalescence filtering treatment on the first intermediate product oil by using a second filter 3 to obtain second intermediate product oil.

And 104, separating and filtering the second intermediate product oil by using a third filter 4 to obtain the pipe transportation product oil without mechanical impurities, and inputting the pipe transportation product oil into a second oil product storage tank 5.

According to the method for treating the mechanical impurities in the pipe transportation product oil provided by the embodiment of the invention, the mechanical filtration treatment, the coalescence filtration treatment and the separation filtration treatment are sequentially carried out on the pipe transportation product oil containing the mechanical impurities, so that the mechanical impurities in the pipe transportation product oil can be efficiently removed, and the quality of the pipe transportation product oil is ensured to reach the standard. The method for treating the mechanical impurities in the pipe-conveyed finished oil is simple, has a good treatment effect, and is suitable for a finished oil pipeline system which is required to be subjected to tank dumping treatment in a station and causes the mechanical impurities to exceed the standard due to a long period.

In the actual treatment, because the quality of pipelines is different, the particle size of mechanical impurities to be treated in the product oil in the pipeline transportation has uncertainty, and the mechanical impurities in the product oil in the pipeline transportation can be efficiently removed through the cooperation of the mechanical filtration treatment of the first filter 2, the coalescence filtration treatment of the second filter 3 and the separation filtration treatment of the third filter 4, so that the quality of the product oil in the pipeline transportation is ensured.

Considering that the product oil in the first oil storage tank 1 containing mechanical impurities can be easily and quickly input into the first filter 2 for filtering treatment, the method for treating mechanical impurities in the product oil in the pipeline provided by the embodiment of the invention further comprises:

the mechanical impurity-containing pipe in the first oil product storage tank 1 is used for conveying the product oil to be pressurized through the sliding vane pump 8 so as to enter the first filter 2 for mechanical filtration treatment.

Among them, the sliding vane pump 8 has excellent performance, can transmit liquid with viscosity and volatility, and has lower power compared with the equivalent pump. The transmission device has the advantages of low rotating speed and large flow transmission, can be used for a long time with high speed and low noise, and has stable performance and no fault due to the blade structure.

In view of being able to easily detect the filtering effects of the first filter 2, the second filter 3, and the third filter 4, or detect whether the three filters are clogged, the method for processing mechanical impurities in the product oil in pipeline according to the embodiment of the present invention further includes:

and opening a third valve 13 on the first branch pipeline 10 every 1.5-2.5 hours, obtaining and detecting a first intermediate product oil sample, and determining the filtering effect of the first filter 2 or determining whether the first filter 2 is blocked.

And/or, opening a third valve 13 on the second branch line 11, obtaining and detecting a second intermediate product oil sample, and determining the filtering effect of the second filter 3, or determining whether the second filter 3 is blocked.

And/or, opening a third valve 13 on the third branch pipeline 12, obtaining and detecting the pipe-conveyed product oil sample after removing the mechanical impurities, and determining the filtering effect of the third filter 4 or determining whether the third filter 4 is blocked.

Specifically, the above operation may be performed every 1.5h, 1.7h, 1.9h, 2.0h, 2.1h, 2.3h, 2.5h, etc.

In view of being able to easily perform blowdown and pressure relief on the first filter 2, the second filter 3 and the third filter 4, the method for treating mechanical impurities in the pipeline product oil provided by the embodiment of the invention further comprises the following steps:

and opening a third valve 13 on the first branch pipeline 10 every 1.5-2.5 hours to discharge and release the pressure of the first filter 2.

And/or opening a third valve 13 in the second branch line 11 to drain and depressurise the second filter 3.

And/or opening the third valve 13 in the third branch line 12 for draining and venting the third filter 4.

In another aspect, an embodiment of the present invention provides a system for processing mechanical impurities in a product oil for pipeline, which is applied to any one of the above-mentioned methods for processing mechanical impurities in a product oil for pipeline, as shown in fig. 2, and includes: the filter comprises a first oil product storage tank 1, a first filter 2, a second filter 3, a third filter 4, a second oil product storage tank 5, a main pipeline 6 and a first valve 7. Wherein, the outlet of the first oil storage tank 1 is communicated with the inlet of the second oil storage tank 5 through a main pipeline 6. The first valve 7, the first filter 2, the second filter 3 and the third filter 4 are sequentially arranged on the main pipeline 6. The first filter element of the first filter 2 is a mechanical filter element. The second filter element of the second filter 3 is a coalescing filter element. The third filter element of the third filter 4 is a separation filter element.

According to the treatment system for mechanical impurities in the pipe-conveying product oil, provided by the embodiment of the invention, the mechanical filtration treatment, the coalescence filtration treatment and the separation filtration treatment are sequentially carried out on the pipe-conveying product oil containing the mechanical impurities through the first filter 2, the second filter 3 and the third filter 4, so that the mechanical impurities in the pipe-conveying product oil can be efficiently removed, and the quality of the pipe-conveying product oil is ensured to reach the standard. The method for treating the mechanical impurities in the pipe-conveyed finished oil is simple, has a good treatment effect, and is suitable for a finished oil pipeline system which is required to be subjected to tank dumping treatment in a station and causes the mechanical impurities to exceed the standard due to a long period.

In the actual treatment, because the quality of pipelines is different, the particle size of mechanical impurities to be treated in the product oil in the pipeline transportation has uncertainty, and the mechanical impurities in the product oil in the pipeline transportation can be efficiently removed through the cooperation of the mechanical filtration treatment of the first filter 2, the coalescence filtration treatment of the second filter 3 and the separation filtration treatment of the third filter 4, so that the quality of the product oil in the pipeline transportation is ensured.

As an example, the first filter element of the first filter 2 is a mechanical filter element (e.g., a perforated plate, a mesh, etc.), the second filter element of the second filter 3 is a conventional aviation kerosene coalescing filter element, and the third filter element of the third filter 4 is a conventional aviation kerosene separating filter element.

By the arrangement, the first filter 2, the second filter 3 and the third filter 4 have good filtering effects. Moreover, the filter elements of the first filter 2, the second filter 3, and the third filter 4 are easily available.

Considering that the three filters of the first filter 2, the second filter 3, and the third filter 4 cooperate to have a good filtering effect and make the three filters sufficiently exert the filtering effect, the following example is given:

the pore diameter of the filtration pores of the first filter element is 18 to 22 μm, for example, 18 μm, 19 μm, 20 μm, 21 μm, 22 μm, etc., the pore diameter of the filtration pores of the second filter element is 4 to 6 μm, for example, 4 μm, 5 μm, 6 μm, etc., and the pore diameter of the filtration pores of the third filter element is 4 to 6 μm, for example, 4 μm, 5 μm, 6 μm, etc.

In order to enable the treatment system for mechanical impurities in the pipe-conveyed product oil to be applicable to most of product oil pipeline systems and have excellent filtering effect, the following examples are given:

the diameter of the first filter element is 140-160 mm, for example, 140mm, 145mm, 150mm, 155mm, 160mm, etc., and the length is 910 mm-920 mm, for example, 910mm, 912mm, 914mm, 916mm, 918mm, 920mm, etc. The diameter of the second filter element is 140-160 mm, for example, 140mm, 143mm, 145mm, 147mm, 150mm, 153mm, 155mm, 157mm, 160mm, etc., and the length is 740-760 mm, for example, 740mm, 743mm, 745mm, 747mm, 750mm, 753mm, 755mm, 757mm, 760mm, etc. The diameter of the third filter element is 140-160 mm, for example, 140mm, 142mm, 145mm, 147mm, 150mm, 153mm, 155mm, 157mm, 160mm and the like, and the length is 1100-1130 mm, for example, 1100mm, 1105mm, 1110mm, 1115mm, 1120mm, 1125mm, 1130mm and the like.

Considering that the product oil in the first oil storage tank 1 containing mechanical impurities can be easily and quickly input into the first filter 2 for filtering, as shown in fig. 1, the system for processing mechanical impurities in the product oil in the pipeline provided by the embodiment of the present invention further includes: a vane pump 8; a sliding vane pump 8 is arranged on the main line 6 between the first valve 7 and the first filter 2.

Considering that the product oil in pipe transportation processed by the third filter 4 can be easily controlled to enter the second oil storage tank 5, as shown in fig. 1, the processing system for mechanical impurities in the product oil in pipe transportation provided by the embodiment of the present invention further includes: a second valve 9; a second valve 9 is arranged on the main line 6 between the third filter 4 and the second oil storage tank 5.

In view of being able to easily detect the filtering effects of the first filter 2, the second filter 3, and the third filter 4, or perform blowdown and pressure relief on the three filters, as shown in fig. 1, the system for treating mechanical impurities in the product oil in pipeline provided by the embodiment of the present invention further includes: a first branch line 10, a second branch line 11, a third branch line 12, and three third valves 13. One end of the first branch line 10 communicates with the main line 6 between the first filter 2 and the second filter 3; one end of the second branch line 11 communicates with the main line 6 between the second filter 3 and the third filter 4; one end of the third branch line 12 communicates with the main line 6 at the outlet of the third filter 4; three third valves 13 are provided on the first branch line 10, the second branch line 11, and the third branch line 12, respectively.

By controlling the opening of the third valve 13 in the first branch line 10, the first intermediate product oil treated by the first filter 2 can be outputted from the first branch line 10, and by detecting this sample, the filtering effect of the first filter 2 and whether or not the first filter 2 is malfunctioning can be easily determined. And, impurities in the first filter 2 can be discharged through the first branch line 10 to achieve the effects of pollution discharge and pressure relief.

The second branch line 11 and the third branch line 12, and the third valve 13 have the same effects as described above, and will not be described again.

As an example, the other end of the first branch line 10 may communicate with the other end of the second branch line 11, and the other end of the second branch line 11 may communicate with the other end of the third branch line 12.

In this way, when the second filter 3 is out of order, the piped product oil treated by the first filter 2 can be led directly through the first branch line 10 and the second branch line 11 into the third filter 4. When the third filter 4 is out of order, the piped product oil treated by the second filter 3 can directly enter the third branch pipeline 12 and the main pipeline 6 through the second branch pipeline 11, and finally enter the second oil product storage tank 5.

The above description is only an illustrative embodiment of the present invention, and should not be taken as limiting the scope of the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention should be included in the scope of the present invention.