CN112460487B - Auxiliary process system and auxiliary process method for downloading of oil delivery station of finished oil pipeline - Google Patents
Auxiliary process system and auxiliary process method for downloading of oil delivery station of finished oil pipeline Download PDFInfo
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- CN112460487B CN112460487B CN202011327131.2A CN202011327131A CN112460487B CN 112460487 B CN112460487 B CN 112460487B CN 202011327131 A CN202011327131 A CN 202011327131A CN 112460487 B CN112460487 B CN 112460487B
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- 238000000034 method Methods 0.000 title claims abstract description 56
- 230000008569 process Effects 0.000 title claims abstract description 45
- 238000002156 mixing Methods 0.000 claims abstract description 213
- 238000004891 communication Methods 0.000 claims description 17
- 238000011144 upstream manufacturing Methods 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000007774 longterm Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000002283 diesel fuel Substances 0.000 description 3
- 230000029087 digestion Effects 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/14—Conveying liquids or viscous products by pumping
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/18—Arrangements for supervising or controlling working operations for measuring the quantity of conveyed product
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses an auxiliary process system and an auxiliary process method for downloading of an oil delivery station of a finished oil pipeline, which comprise the following steps: the first variable frequency pump is connected in series with the pressure relief tank and the main flow of the pipeline through a first pipeline, and the first variable frequency pump is connected in series with the first oil mixing tank, the second oil mixing tank and a loading and unloading vehicle reserved pipeline through a second pipeline; the second variable frequency pump is connected in series with the first oil mixing tank, the second oil mixing tank and the pipeline main flow through a third pipeline, and the second variable frequency pump is connected in series with the first oil mixing tank, the second oil mixing tank, the pressure relief tank and a loading and unloading vehicle reserved pipeline through a second pipeline and a third pipeline; the first oil mixing tank is connected in series with the main flow of the pipeline through a fourth pipeline, and the first oil mixing tank is connected in series with the first variable frequency pump, the second variable frequency pump and the reserved pipeline of the loading and unloading vehicle through a second pipeline; the second oil mixing tank is connected in series with the main flow of the pipeline through a fifth pipeline, and the second oil mixing tank is connected in series with the first variable frequency pump, the second variable frequency pump and the reserved pipeline of the loading and unloading truck through a second pipeline. Therefore, the pressure relief reinjection device has the functions of oil mixing and mixing, collecting and unloading and the like.
Description
Technical Field
The invention relates to an auxiliary process system and an auxiliary process method for downloading of an oil delivery station of a finished oil pipeline.
Background
In the running process of the finished oil pipeline, a certain amount of gasoline and diesel oil mixture is inevitably generated due to convection diffusion when gasoline and diesel oil are sequentially conveyed in the closed pipeline, namely the gasoline and diesel oil mixture is called as 'mixed oil'. At present, the common method of domestic pipeline enterprises is to accurately cut out the oil mixing part through density measurement and calculation, distinguish two types of rich gasoline and rich diesel according to the proportion of gasoline and diesel, and adopt separately arranged oil mixing tanks for respective storage. In the subsequent pipeline oil product downloading process, on the premise of ensuring qualified quality, the mixed oil is injected into the main flow of the downloading pipeline for online mixing by utilizing the quality potential of the downloaded oil product and the mixed oil mixing process flow, so that the in-situ digestion of the mixed oil is ensured. However, with the continuous upgrading of oil product labels in recent years, the in-situ blending digestion pressure of the mixed oil is getting larger, and it has become a normal work that part of the mixed oil with less download amount is dragged back to other sites for remote blending or refinery blending.
In the construction period of the oil transportation station of the prior finished oil pipeline in China, pressure relief and reinjection process flows are arranged for preventing overpressure of the pipeline, and mixed oil downloading and mixing process flows are arranged for mixed oil downloading and reinjection, but the unloading process of road loading and external transportation and remote back dragging of the mixed oil when the mixed oil cannot be digested on site is not considered. At present, when oil mixing at an oil transportation station needs to be loaded and transported outside, or when oil mixing at different places is dragged back to the station for unloading, temporary pipelines are usually externally connected only through a seabed valve of an oil mixing tank, and the oil mixing tank is collected and unloaded by a self-carrying pump or an externally-connected temporary pump. The main problems of the prior art are that the unloading and receiving mode of the external temporary pump is low in efficiency, and time and labor are wasted; secondly, the pump is continuously operated in the open air, and particularly under the condition of high-temperature weather, great potential safety hazards exist; thirdly, if a new oil mixing unloading process flow is added, the pipeline and a new machine pump need to be laid again, and other large investment is needed; and fourthly, in order to realize basic functions of pressure relief reinjection, oil mixing and blending and the like, a plurality of oil pumps with different flow ranges are arranged in the oil delivery station, the site layout is crowded, the daily use of the process flows of pressure relief reinjection and the like is less, and the equipment is in a long-term idle state.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide an auxiliary process system for downloading of an oil delivery station of a finished oil pipeline, which can solve the problems of crowded layout, long-term idle of part of equipment, no mixed oil collecting and unloading function and the like of the existing downloading auxiliary process system of the oil delivery station of the finished oil pipeline.
The invention also aims to provide an auxiliary process method for downloading of the oil delivery station of the finished oil pipeline, which has a simple structure, has the functions of pressure relief, reinjection, oil mixing and blending and the like, and can realize the functions of quick, efficient and safe unloading and collecting of the oil mixing.
In order to achieve the above object, the present invention provides an auxiliary process system for downloading in an oil transportation station of a finished oil pipeline, comprising: the upstream of the main flow of the pipeline is connected with the upstream pipeline injection flow, and the downstream is connected with the pipeline metering downloading flow; a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a fifth pipeline and a sixth pipeline; the water hammer pressure relief valve, the pressure relief tank, the first variable frequency pump, the second variable frequency pump, the first oil mixing tank and the second oil mixing tank are arranged on the water hammer; the first variable frequency pump is connected in series with the pressure relief tank and the main flow of the pipeline through a first pipeline, and the first variable frequency pump is connected in series with the first oil mixing tank, the second oil mixing tank and a loading and unloading vehicle reserved pipeline through a second pipeline; the second variable frequency pump is connected in series with the first oil mixing tank, the second oil mixing tank and the pipeline main flow through a third pipeline, and the first oil mixing tank, the second oil mixing tank, the pressure relief tank and the loading and unloading vehicle reserved pipeline through a second pipeline and a third pipeline; the first oil mixing tank is connected in series with a main flow of the pipeline through a fourth pipeline, and the first oil mixing tank is connected in series with a first variable frequency pump, a second variable frequency pump and a loading and unloading vehicle reserved pipeline through a second pipeline; the second oil mixing tank is connected in series with the main flow of the pipeline through a fifth pipeline, and the second oil mixing tank is connected in series with the first variable frequency pump, the second variable frequency pump and the reserved pipeline of the loading and unloading vehicle through a second pipeline; wherein the pressure relief tank is connected in series with the main flow of the pipeline through a sixth pipeline.
In a preferred embodiment, the first pipeline comprises a first pipeline first valve, a first filter, a first variable frequency pump, a first flow meter and a first pipeline second valve which are connected through pipes.
In a preferred embodiment, the second line comprises a first line valve, a second line three valve, a second line four valve, a second line five valve, a second line six valve, and a second line seven valve connected by tubing.
In a preferred embodiment, the third pipeline comprises a third pipeline first valve, a second filter, a second variable frequency pump, a second flow meter and a third pipeline second valve which are connected through pipes.
In a preferred embodiment, the fourth line comprises a fourth line one valve, a fourth line two valve and a fourth line three valve connected by piping.
In a preferred embodiment, the fifth line comprises a fifth line one valve, a fifth line two valve and a fifth line three valve connected by tubing.
In a preferred embodiment, the sixth pipeline comprises a sixth pipeline first valve, a sixth pipeline second valve and a surge relief valve which are connected through pipes.
In a preferred embodiment, the communication points between the first, second, third, fourth, fifth and sixth pipelines include:
the communication points of the first pipeline and the second pipeline are respectively arranged between the middle of a first pipeline first valve and a first filter at the inlet of the first variable frequency pump and the middle of a second pipeline first valve and a second pipeline fourth valve, and between the middle of a first flowmeter and a first pipeline second valve at the outlet of the first variable frequency pump and the middle of a second pipeline second valve and a second pipeline fifth valve;
the communication point of the third pipeline and the second pipeline is respectively arranged between the middle of a second flowmeter and a third pipeline valve at the outlet of the second variable frequency pump and the middle of a second pipeline valve and a second pipeline fifth valve, and between the middle of a second filter and a third pipeline first valve at the inlet of the second variable frequency pump and the second pipeline third valve;
the communication point of the fourth pipeline and the pipeline is arranged between the fourth pipeline two valve and the fourth pipeline three valve and the second pipeline six valve;
the communication point of the fifth pipeline and the second pipeline is arranged between the middle of the fifth pipeline valve and the fifth pipeline three valve and the second pipeline seven valve; and
the communication point of the sixth pipeline and the first pipeline is arranged as follows:
the first pipeline valve is connected with the sixth pipeline valve through the pressure relief tank.
In a preferred embodiment, the main pipeline flow path is connected with a first pipeline two valve, a third pipeline two valve, a fourth pipeline three valve and a fifth pipeline three valve respectively, and the upstream of the main pipeline flow path of the pipeline is connected between the upstream pipeline injection flow path and the surge relief valve and is connected with a sixth pipeline two valve through the surge relief valve.
In order to achieve another purpose, the invention provides an auxiliary process method for downloading a finished oil pipeline oil delivery station, which comprises the following steps: the outlet of the first variable frequency pump is connected with the first flowmeter, the first pipeline valve and the main flow path of the pipeline; an inlet of the first variable frequency pump is connected with the first filter, the first pipeline valve and the pressure relief tank, and oil products in the pressure relief tank can be injected into a main flow of a pipeline through the first variable frequency pump so as to realize a pressure relief and reinjection function; the outlet of the second variable frequency pump is connected with a second flowmeter, a third pipeline two valve and a pipeline main flow, the inlet of the second variable frequency pump is connected with a second filter, a third pipeline one valve, a second pipeline four valve, a first pipeline one valve and a pressure relief tank, and oil in the pressure relief tank can be injected into the pipeline main flow through the second variable frequency pump so as to realize the pressure relief and reinjection functions; the outlet of the first variable frequency pump is connected with the first flowmeter, the first pipeline first valve and the pipeline main flow, the inlet of the first variable frequency pump is connected with the first filter, the second pipeline fourth valve, the second pipeline sixth valve, the fourth pipeline second valve, the fourth pipeline first valve and the first oil mixing tank, and the first variable frequency pump can be used for injecting the first oil mixing tank oil product into the pipeline main flow so as to realize the oil mixing and blending function; the outlet of the first variable frequency pump is connected with the first flowmeter, the first pipeline first valve and the pipeline main flow, the inlet of the first variable frequency pump is connected with the first filter, the second pipeline fourth valve, the second pipeline seventh valve, the fifth pipeline second valve, the fifth pipeline first valve and the second oil mixing tank, and the product of the second oil mixing tank oil can be injected into the pipeline main flow through the first variable frequency pump so as to realize the oil mixing function; the outlet of the second variable frequency pump is connected with a second flowmeter, a third pipeline two valve and a pipeline main flow path, and the inlet of the second variable frequency pump is connected with a second filter, a third pipeline one valve, a second pipeline six valve, a fourth pipeline two valve, a fourth pipeline one valve and a first oil mixing tank, so that the oil product of the first oil mixing tank can be injected into the pipeline main flow path through the second variable frequency pump to realize the oil mixing function; the outlet of the second variable frequency pump is connected with a second flowmeter, a third pipeline two valve and a pipeline main flow path, the inlet of the second variable frequency pump is connected with a second filter, a third pipeline one valve, a second pipeline seven valve, a fifth pipeline two valve, a fifth pipeline one valve and a second oil mixing tank, and oil in the second oil mixing tank can be injected into the pipeline main flow path through the second variable frequency pump so as to realize the oil mixing function; the outlet of the first variable frequency pump is connected with a first flow meter, a second pipeline five valve, a second pipeline six valve, a fourth pipeline two valve, a fourth pipeline first valve and a first oil mixing tank, the inlet of the first variable frequency pump is connected with a first filter, a second pipeline first valve and a loading and unloading vehicle reserved pipeline, and external oil mixing can be injected into the first oil mixing tank through the first variable frequency pump so as to realize the oil mixing and unloading functions; the outlet of the first variable frequency pump is connected with the first flow meter, the second pipeline fifth valve, the second pipeline seventh valve, the fifth pipeline second valve, the fifth pipeline first valve and the second oil mixing tank, the inlet of the first variable frequency pump is connected with the first filter, the second pipeline first valve and the loading and unloading vehicle reserved pipeline, and external oil mixing can be injected into the second oil mixing tank through the first variable frequency pump so as to realize the oil mixing and unloading functions; the outlet of the second variable frequency pump is connected with a second flowmeter, a second pipeline fifth valve, a second pipeline sixth valve, a fourth pipeline second valve, a fourth pipeline first valve and a first oil mixing tank, the inlet of the second variable frequency pump is connected with a second filter, a second pipeline third valve and a loading and unloading vehicle reserved pipeline, and external oil mixing can be injected into the first oil mixing tank through the second variable frequency pump so as to realize the oil mixing and unloading functions; the outlet of the second variable frequency pump is connected with a second flowmeter, a second pipeline fifth valve, a second pipeline seventh valve, a fifth pipeline second valve, a fifth pipeline first valve and a second oil mixing tank, the inlet of the second variable frequency pump is connected with a second filter, a second pipeline third valve and a loading and unloading vehicle reserved pipeline, and external oil mixing can be injected into the second oil mixing tank through the second variable frequency pump so as to realize the oil mixing and unloading functions; the outlet of the first variable frequency pump is connected with the first flowmeter, the second pipeline two-valve and the loading and unloading vehicle reserved pipeline, the inlet of the first variable frequency pump is connected with the first filter, the second pipeline four-valve, the second pipeline six-valve, the fourth pipeline two-valve, the fourth pipeline one-valve and the first oil mixing tank, and the mixed oil of the first oil mixing tank can be injected into the loading and unloading vehicle reserved pipeline through the first variable frequency pump so as to realize the function of loading and unloading the vehicle; the outlet of the first variable frequency pump is connected with the first flowmeter, the second pipeline two-valve and the loading and unloading vehicle reserved pipeline, the inlet of the first variable frequency pump is connected with the first filter, the second pipeline four-valve, the second pipeline seven-valve, the fifth pipeline two-valve, the fifth pipeline one-valve and the second oil mixing tank, and the mixed oil of the second oil mixing tank can be injected into the loading and unloading vehicle reserved pipeline through the first variable frequency pump so as to realize the function of mixed oil loading; the outlet of the second variable frequency pump is connected with the second flow meter, the second pipeline two valve and the loading and unloading vehicle reserved pipeline, the inlet of the second variable frequency pump is connected with the second filter, the third pipeline first valve, the second pipeline sixth valve, the fourth pipeline two valve, the fourth pipeline first valve and the first oil mixing tank, and the mixed oil of the first oil mixing tank can be injected into the loading and unloading vehicle reserved pipeline through the second variable frequency pump so as to realize the function of loading and unloading the mixed oil; the outlet of the second variable frequency pump is connected with a second flowmeter, a second pipeline two-valve and a loading and unloading vehicle reserved pipeline, the inlet of the second variable frequency pump is connected with a second filter, a third pipeline one-valve, a second pipeline seven-valve, a fifth pipeline two-valve, a fifth pipeline one-valve and a second oil mixing tank, and the mixed oil of the second oil mixing tank can be injected into the loading and unloading vehicle reserved pipeline through the second variable frequency pump so as to realize the function of loading and unloading the mixed oil; the main flow of the pipeline is connected with a fourth pipeline three-valve, a fourth pipeline two-valve, a fourth pipeline one-valve and a first oil mixing tank so as to realize the function of oil mixing downloading; the main flow of the pipeline is connected with the fifth pipeline three valve, the fifth pipeline two valve, the fifth pipeline one valve and the second oil mixing tank so as to realize the oil mixing downloading function.
Compared with the prior art, the auxiliary process system and the auxiliary process method for downloading the finished oil pipeline oil transportation station have the following beneficial effects: the invention completely meets the operation requirement of the finished oil pipeline, realizes the functions of pressure relief reinjection, oil mixing blending, oil mixing loading and unloading and the like by only using one variable frequency pump (one pump is used and the other pump is standby), and effectively solves the problems of crowded process layout, long-term idle of part of equipment and the like of the existing oil transportation station. On one hand, for a newly-built oil transportation station, the variable frequency pump is used as a power source, different flow requirements of operations such as pressure relief reinjection, oil mixing blending, oil mixing loading and unloading can be met simultaneously by optimizing the process flow setting and only adopting a one-use one-standby mode, and a large amount of investment is saved; on the other hand, for the construction of an oil transportation station which is put into use but is not provided with an oil mixing loading and unloading function, the oil mixing unloading and collecting function can be realized by utilizing the existing reinjection and oil mixing process and only adding a small part of pipe fittings and valves under the condition of keeping the original pressure relief reinjection and oil mixing functions unchanged, and the heavy risk operation such as large-scale transformation, oil-carrying fire driving and the like is avoided.
Drawings
FIG. 1 is a schematic diagram of the equipment layout of an auxiliary process system according to an embodiment of the present invention.
Description of the main reference numerals:
1: water hammer relief valve, 2: pressure relief tank, 3: first variable frequency pump, 4: second variable frequency pump, 5: first oil-mixed tank, 6: a second oil mixing tank, 1-1: first line one valve, 1-2: first line valve, LL-1: first flow meter, GL-1: first filter, 2-1: second line one valve, 2-2: second line valve, 2-3: a second pipeline three-valve, 2-4: second line four-valve, 2-5: second pipeline five valve, 2-6: second line six-valve, 2-7: second line seven valve, 3-1: third line one valve, GL-2: second filter, LL-2: second flow meter, 3-2: third line valve, 4-1: fourth line one valve, 4-2: fourth line valve, 4-3: a fourth pipeline three-valve, 5-1: fifth pipeline one valve, 5-2: fifth line valve, 5-3: a fifth pipeline triple valve, 6-1: sixth line one valve, 6-2: and a sixth line valve.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the term "comprise" or variations such as "comprises" or "comprising", etc., will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
As shown in fig. 1, an auxiliary process system for downloading at a product oil pipeline delivery station according to a preferred embodiment of the present invention comprises: the upstream of the main flow of the pipeline is connected with the upstream pipeline injection flow, and the downstream is connected with the pipeline metering downloading flow; a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a fifth pipeline and a sixth pipeline; and a water hammer relief valve 1, a pressure relief tank 2, a first variable frequency pump 3, a second variable frequency pump 4, a first oil mixing tank 5 and a second oil mixing tank 6. Wherein the first variable frequency pump 3 is connected in series with the pressure relief tank 2 and the main flow of the pipeline through a first pipeline, and the first variable frequency pump 3 is connected in series with the first oil mixing tank 5, the second oil mixing tank 6 and the reserved pipeline of the loading and unloading vehicle through a second pipeline. The second variable frequency pump 4 is connected in series with the first oil mixing tank 5, the second oil mixing tank 6 and the pipeline main flow path through a third pipeline, and the second variable frequency pump 4 is connected in series with the first oil mixing tank 5, the second oil mixing tank 6, the pressure relief tank 2 and the loading and unloading vehicle reserved pipeline through a second pipeline and a third pipeline. Wherein the first oil mixing tank 5 is connected in series with the main flow of the pipeline through a fourth pipeline, and the first oil mixing tank 5 is connected in series with the first variable frequency pump 3, the second variable frequency pump 4 and the reserved pipeline of the loading and unloading vehicle through a second pipeline. The second oil mixing tank 6 is connected in series with the main flow of the pipeline through a fifth pipeline, and the second oil mixing tank 6 is connected in series with the first variable frequency pump 3, the second variable frequency pump 4 and the reserved pipeline of the loading and unloading vehicle through a second pipeline. Wherein the pressure relief tank 2 is connected in series with the main flow of the pipeline through a sixth pipeline.
In some embodiments, the first line includes a first line first valve 1-1, a first filter GL-1, a first variable frequency pump 3, a first flow meter LL-1, and a first line second valve 1-2 connected by tubing.
In some embodiments, the second pipeline includes a second pipeline one valve 2-1, a second pipeline two valve 2-2, a second pipeline three valve 2-3, a second pipeline four valve 2-4, a second pipeline five valve 2-5, a second pipeline six valve 2-6, and a second pipeline seven valve 2-7 connected by tubing.
In some embodiments, the third line includes a third line-valve 3-1, a second filter GL-2, a second variable frequency pump 4, a second flow meter LL-2, and a third line-valve 3-2 connected by tubing.
In some embodiments, the fourth line includes a fourth line one valve 4-1, a fourth line two valve 4-2, and a fourth line three valve 4-3 connected by tubing.
In some embodiments, the fifth line includes a fifth line one valve 5-1, a fifth line two valve 5-2, and a fifth line three valve 5-3 connected by tubing.
In some embodiments, the sixth pipeline comprises a sixth pipeline first valve 6-1, a sixth pipeline second valve 6-2 and the surge relief valve 1 connected by piping.
In some embodiments, the point of communication between the first, second, third, fourth, fifth and sixth conduits with each other comprises:
the communication points of the first pipeline and the second pipeline are respectively arranged between the middle of a first pipeline first valve 1-1 and a first filter GL-1 at the inlet of the first variable frequency pump 3, the middle of a second pipeline first valve 2-1 and a second pipeline fourth valve 2-4, the middle of a first flow meter LL-1 and a first pipeline second valve 1-2 at the outlet of the first variable frequency pump 3 and the middle of a second pipeline second valve 2-2 and a second pipeline fifth valve 2-5.
The communication points of the third pipeline and the second pipeline are respectively arranged between the middle of the second flowmeter LL-2 and the third pipeline valve 3-2 at the outlet of the second variable frequency pump 4 and the middle of the second pipeline valve 2-2 and the second pipeline five valve 2-5, and between the middle of the second filter GL-2 and the third pipeline first valve 3-1 at the inlet of the second variable frequency pump 4 and the second pipeline third valve 2-3.
The communication point of the fourth pipeline and the pipeline is arranged between the middle of the fourth pipeline two-valve 4-2 and the fourth pipeline three-valve 4-3 and the second pipeline six-valve 2-6. And
the communication point of the fifth pipeline and the second pipeline is arranged between the middle of the fifth pipeline two-valve 5-2 and the fifth pipeline three-valve 5-3 and the second pipeline seven-valve 2-7.
In some embodiments, the main pipeline flow is connected to a first line valve 1-2, a third line valve 3-2, a fourth line valve 4-3, and a fifth line valve 5-3, respectively.
In some embodiments, the first inverter pump 3 and the second inverter pump 4 of the present embodiment are arranged as a single unit. The first oil mixing tank 5 and the second oil mixing tank 6 are used for storing mixed oil with more gasoline components and mixed oil with more diesel components respectively, and are in a mutually standby mode.
Referring to fig. 1, an auxiliary process for downloading from a finished oil pipeline delivery station according to a preferred embodiment of the present invention includes: the outlet of the first variable frequency pump 3 is connected with the first flow meter LL-1, the first pipeline valve 1-2 and the main flow of the pipeline. An inlet of the first variable frequency pump 3 is connected with the first filter GL-1, the first pipeline valve 1-1 and the pressure relief tank 2, and an oil product of the pressure relief tank 2 can be injected into a main flow of a pipeline through the first variable frequency pump 3 so as to realize a pressure relief reinjection function. An outlet of the second variable frequency pump 4 is connected with a second flowmeter LL-2, a third pipeline two valve 3-2 and a pipeline main flow, an inlet of the second variable frequency pump 4 is connected with a second filter GL-2, a third pipeline one valve 3-1, a second pipeline four valve 2-4, a first pipeline one valve 1-1 and a pressure relief tank 2, and oil in the pressure relief tank 2 can be injected into the pipeline main flow through the second variable frequency pump 4 so as to realize the pressure relief and reinjection functions; the outlet of the first variable frequency pump 3 is connected with a first flowmeter LL-1, a first pipeline valve 1-1 and a pipeline main flow path, the inlet of the first variable frequency pump 3 is connected with a first filter GL-1, a second pipeline four valve 2-4, a second pipeline six valve 2-6, a fourth pipeline two valve 4-2, a fourth pipeline first valve 4-1 and a first oil mixing tank 5, and oil products in the first oil mixing tank 5 can be injected into the pipeline main flow path through the first variable frequency pump 3 to realize the oil mixing function. The outlet of the first variable frequency pump 3 is connected with a first flowmeter LL-1, a first pipeline valve 1-1 and a pipeline main flow path, the inlet of the first variable frequency pump 3 is connected with a first filter GL-1, a second pipeline four valve 2-4, a second pipeline seven valve 2-7, a fifth pipeline two valve 5-2, a fifth pipeline one valve 5-1 and a second oil mixing tank 6, and oil products in the second oil mixing tank 6 can be injected into the pipeline main flow path through the first variable frequency pump 3 to realize the oil mixing function; an outlet of the second variable frequency pump 4 is connected with a second flowmeter LL-2, a third pipeline valve 3-2 and a pipeline main flow path, and an inlet of the second variable frequency pump 4 is connected with a second filter GL-2, a third pipeline valve 3-1, a second pipeline valve 2-6, a fourth pipeline valve 4-2, a fourth pipeline valve 4-1 and a first oil mixing tank 5, so that oil products in the first oil mixing tank 5 can be injected into the pipeline main flow path through the second variable frequency pump 4 to achieve an oil mixing function. An outlet of the second variable frequency pump 4 is connected with a second flowmeter LL-2, a third pipeline valve 3-2 and a pipeline main flow path, an inlet of the second variable frequency pump 4 is connected with a second filter GL-2, a third pipeline valve 3-1, a second pipeline seven valve 2-7, a fifth pipeline valve 5-2, a fifth pipeline valve 5-1 and a second oil mixing tank 6, and oil products in the second oil mixing tank 6 can be injected into the pipeline main flow path through the second variable frequency pump 4 to achieve an oil mixing function. An outlet of the first variable frequency pump 3 is connected with a first flowmeter LL-1, a second pipeline five-valve 2-5, a second pipeline six-valve 2-6, a fourth pipeline two-valve 4-2, a fourth pipeline one-valve 4-1 and a first oil mixing tank 5, an inlet of the first variable frequency pump 3 is connected with a first filter GL-1, a second pipeline one-valve 2-1 and a loading and unloading vehicle reserved pipeline, and external oil mixing can be injected into the first oil mixing tank 5 through the first variable frequency pump 3 so as to realize the function of oil mixing and unloading. An outlet of the first variable frequency pump 3 is connected with a first flowmeter LL-1, a second pipeline five-valve 2-5, a second pipeline seven-valve 2-7, a fifth pipeline two-valve 5-2, a fifth pipeline one-valve 5-1 and a second oil mixing tank 6, an inlet of the first variable frequency pump 3 is connected with a first filter GL-1, a second pipeline one-valve 2-1 and a loading and unloading vehicle reserved pipeline, and external oil mixing can be injected into the second oil mixing tank 6 through the first variable frequency pump 3 so as to realize the function of oil mixing and unloading. An outlet of the second variable frequency pump 4 is connected with a second flowmeter LL-2, a second pipeline five-valve 2-5, a second pipeline six-valve 2-6, a fourth pipeline two-valve 4-2, a fourth pipeline one-valve 4-1 and a first oil mixing tank 5, an inlet of the second variable frequency pump 4 is connected with a second filter GL-2, a second pipeline three-valve 2-3 and a loading and unloading vehicle reserved pipeline, and external oil mixing can be injected into the first oil mixing tank 5 through the second variable frequency pump 4 to realize the oil mixing and unloading function. An outlet of the second variable frequency pump 4 is connected with a second flow meter LL-2, a second pipeline fifth valve 2-5, a second pipeline seventh valve 2-7, a fifth pipeline second valve 5-2, a fifth pipeline first valve 5-1 and a second oil mixing tank 6, an inlet of the second variable frequency pump 4 is connected with a second filter GL-2, a second pipeline third valve 2-3 and a loading and unloading vehicle reserved pipeline, and external oil mixing can be injected into the second oil mixing tank 6 through the second variable frequency pump 4 to achieve the oil mixing and unloading function. The outlet of the first variable frequency pump 3 is connected with a first flowmeter LL-1, a second pipeline two-valve 2-2 and a loading and unloading vehicle reserved pipeline, the inlet of the first variable frequency pump 3 is connected with a first filter GL-1, a second pipeline four-valve 2-4, a second pipeline six-valve 2-6, a fourth pipeline two-valve 4-2, a fourth pipeline one-valve 4-1 and a first oil mixing tank 5, and the mixed oil of the first oil mixing tank 5 can be injected into the loading and unloading vehicle reserved pipeline through the first variable frequency pump 3 so as to realize the function of loading and unloading the vehicle. The outlet of the first variable frequency pump 3 is connected with a first flowmeter LL-1, a second pipeline two-valve 2-2 and a loading and unloading vehicle reserved pipeline, the inlet of the first variable frequency pump 3 is connected with a first filter GL-1, a second pipeline four-valve 2-4, a second pipeline seven-valve 2-7, a fifth pipeline two-valve 5-2, a fifth pipeline one-valve 5-1 and a second oil mixing tank 6, and the mixed oil of the second oil mixing tank 6 can be injected into the loading and unloading vehicle reserved pipeline through the first variable frequency pump 3 so as to realize the function of loading and unloading the vehicle. The outlet of the second variable frequency pump 4 is connected with a second flowmeter LL-2, a second pipeline two-valve 2-2 and a loading and unloading vehicle reserved pipeline, the inlet of the second variable frequency pump 4 is connected with a second filter GL-2, a third pipeline one-valve 3-1, a second pipeline six-valve 2-6, a fourth pipeline two-valve 4-2, a fourth pipeline one-valve 4-1 and a first oil mixing tank 5, and the mixed oil of the first oil mixing tank 5 can be injected into the loading and unloading vehicle reserved pipeline through the second variable frequency pump 4 so as to realize the function of loading and unloading the vehicle. The outlet of the second variable frequency pump 4 is connected with a second flowmeter LL-2, a second pipeline two-valve 2-2 and a loading and unloading vehicle reserved pipeline, the inlet of the second variable frequency pump 4 is connected with a second filter GL-2, a third pipeline one-valve 3-1, a second pipeline seven-valve 2-7, a fifth pipeline two-valve 5-2, a fifth pipeline one-valve 5-1 and a second oil mixing tank 6, and the mixed oil of the second oil mixing tank 6 can be injected into the loading and unloading vehicle reserved pipeline through the second variable frequency pump 4 to realize the function of loading and unloading the vehicle. The main flow of the pipeline is connected with a fourth pipeline three-valve 4-3, a fourth pipeline two-valve 4-2, a fourth pipeline one-valve 4-1 and a first oil mixing tank 5 to realize the function of oil mixing and downloading. The main flow of the pipeline is connected with a fifth pipeline three-valve 5-3, a fifth pipeline two-valve 5-2, a fifth pipeline one-valve 5-1 and a second oil mixing tank 6 so as to realize the function of oil mixing and downloading.
In summary, the auxiliary process system and the auxiliary process method for downloading in the oil transportation station of the finished oil pipeline have the following advantages: the invention completely meets the operation requirement of the finished oil pipeline, realizes the functions of pressure relief reinjection, oil mixing blending, oil mixing loading and unloading and the like by only using one variable frequency pump (one pump is used and the other pump is standby), and effectively solves the problems of crowded process layout, long-term idle of part of equipment and the like of the existing oil transportation station. On one hand, for a newly-built oil transportation station, the variable frequency pump is used as a power source, different flow requirements of operations such as pressure relief reinjection, oil mixing blending, oil mixing loading and unloading can be met simultaneously by optimizing the process flow setting and only adopting a one-use one-standby mode, and a large amount of investment is saved; on the other hand, for the construction of an oil transportation station which is put into use but is not provided with an oil mixing loading and unloading function, the oil mixing unloading and collecting function can be realized by utilizing the existing reinjection and oil mixing process and only adding a small part of pipe fittings and valves under the condition of keeping the original pressure relief reinjection and oil mixing functions unchanged, and the heavy risk operation such as large-scale transformation, oil-carrying fire driving and the like is avoided.
The foregoing description of specific exemplary embodiments of the invention has been presented for the purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (10)
1. An auxiliary process system for downloading of a finished oil pipeline oil transportation station is characterized by comprising the following steps:
the upstream of the pipeline main flow is connected with an upstream pipeline injection flow, and the downstream of the pipeline main flow is connected with a pipeline metering downloading flow;
a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a fifth pipeline and a sixth pipeline; and
the system comprises a water hammer pressure relief valve, a pressure relief tank, a first variable frequency pump, a second variable frequency pump, a first oil mixing tank and a second oil mixing tank;
the first variable frequency pump is connected with the pressure relief tank and the pipeline main flow in series through the first pipeline, and the first variable frequency pump is connected with the first oil mixing tank, the second oil mixing tank and a loading and unloading vehicle reserved pipeline in series through the second pipeline;
the second variable frequency pump is connected in series with the first oil mixing tank, the second oil mixing tank and the pipeline main flow path through the third pipeline, and the second variable frequency pump is connected in series with the first oil mixing tank, the second oil mixing tank, the pressure relief tank and the loading and unloading vehicle reserved pipeline through the second pipeline and the third pipeline;
the first oil mixing tank is connected in series with the pipeline main flow through the fourth pipeline, and the first oil mixing tank is connected in series with the first variable frequency pump, the second variable frequency pump and the loading and unloading vehicle reserved pipeline through the second pipeline;
the second oil mixing tank is connected in series with the pipeline main flow through the fifth pipeline, and the second oil mixing tank is connected in series with the first variable frequency pump, the second variable frequency pump and the loading and unloading vehicle reserved pipeline through the second pipeline;
wherein the pressure relief tank is connected in series with the main flow of the pipeline through a sixth pipeline.
2. The auxiliary process system for the download of the finished oil pipeline delivery station of claim 1, wherein the first pipeline comprises a first pipeline first valve, a first filter, a first flow meter, and a first pipeline second valve connected by piping.
3. The system of claim 2, wherein the second pipeline comprises a first pipeline valve, a second pipeline triple valve, a second pipeline quadruple valve, a second pipeline quintuplet valve, and a second pipeline quintuplet valve connected by tubing.
4. The auxiliary process system for the download of the finished oil pipeline delivery station of claim 3, wherein the third pipeline comprises a third pipeline-valve, a second filter, a second flow meter, and a third pipeline-valve connected by piping.
5. The auxiliary process system for the download of the finished oil pipeline delivery station of claim 4, wherein the fourth pipeline comprises a fourth pipeline one valve, a fourth pipeline two valve and a fourth pipeline three valve connected by piping.
6. The auxiliary process system for downloading at a product oil pipeline delivery station of claim 5, wherein the fifth pipeline comprises a fifth pipeline first valve, a fifth pipeline second valve and a fifth pipeline third valve connected by tubing.
7. The auxiliary process system for the download of the finished oil pipeline delivery station of claim 6, wherein the sixth pipeline comprises a sixth pipeline first valve, a sixth pipeline second valve and the surge relief valve connected by pipe fittings.
8. The auxiliary process system for downloading at the product oil pipeline delivery station of claim 7, wherein the communication points between the first pipeline, the second pipeline, the third pipeline, the fourth pipeline, the fifth pipeline and the sixth pipeline comprise:
the communication point of the first pipeline and the second pipeline is arranged as follows:
the middle of the first pipeline first valve and the first filter at the inlet of the first variable frequency pump and the middle of the second pipeline first valve and the second pipeline fourth valve; and
between the middle of the first flow meter and first line valve and the middle of the second line valve and the second line five valve at the outlet of the first variable frequency pump;
the communication point of the third pipeline and the second pipeline is arranged as follows:
the second variable frequency pump is connected between the second line valve and the second variable frequency pump; and
between the middle of the second filter and a third line one valve at the inlet of the second variable frequency pump and the second line three valve;
the communication point of the fourth pipeline and the second pipeline is arranged as follows:
the middle of the fourth pipeline two valve and the fourth pipeline three valve and the second pipeline six valve;
the communication point of the fifth pipeline and the second pipeline is arranged as follows:
the middle of the fifth pipeline valve and the fifth pipeline three valve and the second pipeline seven valve; and
the communication point of the sixth pipeline and the first pipeline is arranged as follows:
the first pipeline valve is connected with the sixth pipeline valve through the pressure relief tank.
9. The auxiliary process system for downloading at the finished oil pipeline delivery station of claim 7, wherein the main flow path of the pipeline is connected to the first pipeline two-valve, the third pipeline two-valve, the fourth pipeline three-valve and the fifth pipeline three-valve respectively, and the upstream of the main flow path of the pipeline is connected to the upstream pipeline injection flow path and the surge relief valve and is connected to the sixth pipeline two-valve through the surge relief valve.
10. An auxiliary process method for downloading of a product oil pipeline oil delivery station, which applies the auxiliary process system of any one of claims 7-9, wherein the auxiliary process method comprises the following steps:
an outlet of the first variable frequency pump is connected with the first flowmeter, the first pipeline valve and the pipeline main flow path; an inlet of the first variable frequency pump is connected with the first filter, the first pipeline valve and the pressure relief tank, and oil in the pressure relief tank can be injected into the main flow of the pipeline through the first variable frequency pump so as to realize the pressure relief and reinjection function;
the outlet of the second variable frequency pump is connected with the second flowmeter, a third pipeline valve and the main pipeline of the pipeline, the inlet of the second variable frequency pump is connected with the second filter, the third pipeline valve, the second pipeline valve, the first pipeline valve and the pressure relief tank, and oil in the pressure relief tank can be injected into the main pipeline of the pipeline through the second variable frequency pump so as to realize the pressure relief and reinjection function;
an outlet of the first variable frequency pump is connected with the first flow meter, the first pipeline first valve and the pipeline main flow, an inlet of the first variable frequency pump is connected with the first filter, the second pipeline fourth valve, the second pipeline sixth valve, the fourth pipeline second valve, the fourth pipeline first valve and the first oil mixing tank, and products of the first oil mixing tank oil can be injected into the pipeline main flow through the first variable frequency pump so as to realize the oil mixing function;
the outlet of the first variable frequency pump is connected with the first flowmeter, the first pipeline first valve and the pipeline main flow path, the inlet of the first variable frequency pump is connected with the first filter, the second pipeline fourth valve, the second pipeline seventh valve, the fifth pipeline second valve, the fifth pipeline first valve and the second oil mixing tank, and products of the second oil mixing tank oil can be injected into the pipeline main flow path through the first variable frequency pump to realize the oil mixing and blending function;
the outlet of the second variable frequency pump is connected with the second flowmeter, a third pipeline valve and the pipeline main flow path, and the inlet of the second variable frequency pump is connected with the second filter, the third pipeline valve, the second pipeline six valve, the fourth pipeline valve and the first oil mixing tank, so that the oil product in the first oil mixing tank can be injected into the pipeline main flow path through the second variable frequency pump to realize the oil mixing and blending function;
the outlet of the second variable frequency pump is connected with the second flowmeter, the third pipeline valve and the pipeline main flow path, the inlet of the second variable frequency pump is connected with the second filter, the third pipeline first valve, the second pipeline seventh valve, the fifth pipeline first valve and the second oil mixing tank, and oil in the second oil mixing tank can be injected into the pipeline main flow path through the second variable frequency pump so as to realize the oil mixing and blending function;
the outlet of the first variable frequency pump is connected with the first flowmeter, the second pipeline five valve, the second pipeline six valve, the fourth pipeline two valve, the fourth pipeline one valve and the first oil mixing tank, the inlet of the first variable frequency pump is connected with the first filter, the second pipeline one valve and the loading and unloading vehicle reserved pipeline, and external oil mixing can be injected into the first oil mixing tank through the first variable frequency pump so as to realize the oil mixing and unloading functions;
the outlet of the first variable frequency pump is connected with the first flowmeter, the second pipeline five valve, the second pipeline seven valve, the fifth pipeline two valve, the fifth pipeline one valve and the second oil mixing tank, the inlet of the first variable frequency pump is connected with the first filter, the second pipeline one valve and the loading and unloading vehicle reserved pipeline, and external oil mixing can be injected into the second oil mixing tank through the first variable frequency pump so as to realize the oil mixing and unloading functions;
the outlet of the second variable frequency pump is connected with the second flow meter, the second pipeline five valve, the second pipeline six valve, the fourth pipeline two valve, the fourth pipeline first valve and the first oil mixing tank, the inlet of the second variable frequency pump is connected with the second filter, the second pipeline three valve and the loading and unloading vehicle reserved pipeline, and external oil mixing can be injected into the first oil mixing tank through the second variable frequency pump so as to realize the oil mixing and unloading functions;
the outlet of the second variable-frequency pump is connected with the second flowmeter, the second pipeline five valve, the second pipeline seven valve, the fifth pipeline two valve, the fifth pipeline one valve and the second oil mixing tank, the inlet of the second variable-frequency pump is connected with the second filter, the second pipeline three valve and the loading and unloading vehicle reserved pipeline, and external oil mixing can be injected into the second oil mixing tank through the second variable-frequency pump so as to realize the oil mixing and unloading functions;
the outlet of the first variable frequency pump is connected with the first flow meter, the second pipeline two valve and the loading and unloading vehicle reserved pipeline, the inlet of the first variable frequency pump is connected with the first filter, the second pipeline four valve, the second pipeline six valve, the fourth pipeline two valve, the fourth pipeline first valve and the first oil mixing tank, and the mixed oil of the first oil mixing tank can be injected into the loading and unloading vehicle reserved pipeline through the first variable frequency pump so as to realize the function of loading and unloading the mixed oil;
the outlet of the first variable frequency pump is connected with the first flowmeter, the second pipeline two-valve and the loading and unloading vehicle reserved pipeline, the inlet of the first variable frequency pump is connected with the first filter, the second pipeline four-valve, the second pipeline seven-valve, the fifth pipeline two-valve, the fifth pipeline one-valve and the second oil mixing tank, and the mixed oil of the second oil mixing tank can be injected into the loading and unloading vehicle reserved pipeline through the first variable frequency pump so as to realize the function of mixed oil loading;
the outlet of the second variable frequency pump is connected with the second flowmeter, the second pipeline two-valve and the loading and unloading vehicle reserved pipeline, the inlet of the second variable frequency pump is connected with the second filter, the third pipeline one-valve, the second pipeline six-valve, the fourth pipeline two-valve, the fourth pipeline one-valve and the first oil mixing tank, and the mixed oil of the first oil mixing tank can be injected into the loading and unloading vehicle reserved pipeline through the second variable frequency pump so as to realize the function of loading and unloading the mixed oil;
the outlet of the second variable frequency pump is connected with the second flowmeter, the second pipeline two-valve and the loading and unloading vehicle reserved pipeline, the inlet of the second variable frequency pump is connected with the second filter, the third pipeline one-valve, the second pipeline seven-valve, the fifth pipeline two-valve, the fifth pipeline one-valve and the second oil mixing tank, and the mixed oil of the second oil mixing tank can be injected into the loading and unloading vehicle reserved pipeline through the second variable frequency pump so as to realize the function of mixed oil loading;
the pipeline main flow is connected with the fourth pipeline three-valve, the fourth pipeline two-valve, the fourth pipeline one-valve and the first oil mixing tank to realize the oil mixing downloading function;
the pipeline main flow is connected with the fifth pipeline three-valve, the fifth pipeline two-valve, the fifth pipeline one-valve and the second oil mixing tank so as to realize the function of oil mixing downloading.
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| CN1253255A (en) * | 1998-11-07 | 2000-05-17 | 商鹏 | Cutting and back-mixing technology for mixed oil |
| CN201561268U (en) * | 2009-10-27 | 2010-08-25 | 贵阳铝镁设计研究院 | Oil supplying and discharging system device of heavy oil depot |
| CN207486445U (en) * | 2017-02-21 | 2018-06-12 | 王鹏 | A kind of pipeline sequentially-fed contaminated product experimental provision |
| CN206831177U (en) * | 2017-05-02 | 2018-01-02 | 中国石油天然气股份有限公司 | One kind, which is concentrated, mixes dilute equipment |
| CN207921753U (en) * | 2018-02-10 | 2018-09-28 | 西南石油大学 | A kind of oil product sequentially-fed system |
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Effective date of registration: 20220705 Address after: 430021 No.39, Changqing Road, Wuhan City, Hubei Province Applicant after: Central China branch of state oil and gas pipeline network Group Co.,Ltd. Address before: 430021 No.39, Changqing Road, Wuhan City, Hubei Province Applicant before: Central China branch of state oil and gas pipeline network Group Co.,Ltd. Applicant before: Sinopec central China branch |
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