Integrated bulk oil batch conveying auxiliary matching system

Abstract

An integrated bulk oil batch conveying auxiliary matching system comprises an integrated pipeline system, the integrated pipeline system comprises a pipe cleaner assembly and a filtering and metering device, the pipe cleaner assembly is connected with the filtering and metering device in series through a valve, and a gas-liquid separation device is connected between the pipe cleaner assembly and the filtering and metering device in parallel. The gas-liquid separation device is communicated in parallel through a valve A and a valve I; the pipe cleaner assembly comprises an inlet pipeline, a sampler is arranged on the inlet pipeline, and an inlet of the inlet pipeline is detachably connected with a pipe cleaner receiving device. The integrated system integrates a pipe cleaner receiving function, filtering and metering, the pipe cleaner receiving device and the outlet elbow are detachably connected to the inlet and the outlet of the inlet and outlet pipeline, and in a non-working state, the pipe cleaner receiving device and the outlet elbow are detached from the inlet and the outlet, so that the integrated system is divided into three parts, and the integrated system is simple in structure and convenient to use. Therefore, the occupied space of the whole system in a non-working state is reduced, and the applicability of the system is improved.

Description

Technical Field

[0001] This utility model belongs to the field of oil pipelines, specifically relating to an auxiliary system for bulk oil transportation. Background Technology

[0002] During wartime, the main means of ensuring fuel supply is through oil pipelines. Generally, oil pipelines are composed of several grooved steel pipes or standard flexible hoses connected by joints. The operating environment of oil pipelines is usually quite harsh. The large-scale and frequent connection, disassembly, and replacement of pipelines at transportation sites cause the following two problems: First, it causes certain damage to the oil pipelines. For example, impurities in the oil pipelines, such as particulate matter, moisture, oxygen, and carbon dioxide, can lead to pipeline blockage, corrosion, and scaling, reducing oil transportation efficiency and even causing safety accidents. Second, it reduces the quality of the oil, which in turn leads to a series of problems such as decreased performance of the power mechanism of downstream equipment, increased fuel consumption, and increased failures.

[0003] Therefore, pipeline cleaning is required using pigs. How to receive pigs launched from upstream oil pipelines downstream, ensure the normal transport of oil downstream, and understand oil quality is a problem that urgently needs to be solved. Summary of the Invention

[0004] The purpose of this utility model is to overcome the above-mentioned shortcomings of the prior art and provide an integrated auxiliary system for bulk oil transportation, which integrates pig receiving, online sampling, and filtration metering.

[0005] The technical solution of this utility model is as follows: it includes an integrated pipeline system, which includes a pig assembly and a filter metering device. The pig assembly is connected in series with the filter metering device via a valve, and a gas-liquid separator is connected in parallel between the pig assembly and the filter metering device. The gas-liquid separator is connected in parallel by valves A and I. The pig assembly includes an inlet pipeline with a sampler installed on it. The pig assembly also includes a pig receiving device that is detachably connected to the inlet of the inlet pipeline.

[0006] The pig receiving device is made of a tee, which includes a main pipe and a branch pipe. The branch pipe of the pig receiving device can be detachably connected to the inlet of the inlet pipe. One end of the main pipe of the pig receiving device is the inlet connected to the upstream oil pipeline, and the other end of the main pipe of the pig receiving device is the outlet, which is equipped with a plug.

[0007] The plug is installed at the outlet via an adapter.

[0008] There is a connecting branch between the inlet pipeline and the filter metering device, and a valve is installed on the connecting branch. A pressure reducing valve is installed on the inlet pipeline.

[0009] There is valve A at the inlet of the gas-liquid separator and valve I at the outlet of the gas-liquid separator.

[0010] The gas-liquid separator is connected to the end of the inlet pipeline via valve A, and to the outlet pipeline via valve I. A detachable connector is provided at the outlet of the outlet pipeline; this connector can be an outlet joint or a pig launching device. The outlet joint is an outlet elbow, and the branch pipeline of the pig receiving device is an elbow, symmetrically arranged with the outlet elbow. The outlet elbow lowers the outlet height of the outlet pipeline to near ground level, facilitating connection to the downstream oil pipeline via a flexible hose. The design of the elbow and outlet elbow maintains a certain distance between the flexible hose and the container wall, preventing the hose from being scratched by the container wall.

[0011] The filtration metering device includes a filter separator, a coarse filter, and a flow meter.

[0012] The coarse filter includes two coarse filters connected in parallel. One coarse filter is installed on pipe one, and the other coarse filter is installed on pipe two. Pipe one and pipe two are connected to the inlet of the filter separator. The outlet of the filter separator is connected to pipe three. A flow meter is installed on pipe three. Valves are installed at the inlet and outlet of the filter separator. The inlet of pipe one, the inlet of pipe two, and the outlet of pipe three are connected to the outlet pipe. A valve is installed on the outlet pipe. The inlet pipe and pipe one are connected by a branch line, and a valve is installed on the branch line.

[0013] The inlet of the filter separator is connected in series with the outlet of the filter separator via a branch, and a valve is installed on the branch; butterfly valves are installed at both ends of the coarse filter.

[0014] When the oil quality is high, close valves A and I at the inlet and outlet of the gas-liquid separator, close the filter separator, and open the valves on the connecting branch and branch to allow the oil to bypass the gas-liquid separator and filter separator and flow directly from pipeline one, branch and pipeline three to the outlet of the outlet pipeline.

[0015] When the oil quality is high, close the gas-liquid separator and the filter metering device, and open the valves on the connecting branch and the outlet pipeline. The oil will bypass the gas-liquid separator and the filter metering device and flow directly out through the outlet of the outlet pipeline.

[0016] The pig receiving device and outlet elbow of this utility model are detachably connected to the inlet and outlet of the pipeline. When not in operation, the pig receiving device and outlet elbow can be removed from the inlet and outlet, making the integrated system a three-part structure. This reduces the space occupied by the entire system when not in operation and improves the applicability of this utility model.

[0017] This utility model consists of a filtration and metering device, a gas-liquid separation device, and a pipeline system. The filtration and metering device and the gas-liquid separation device are integrated into an integrated system by the pipeline. It has the functions of removing mechanical impurities and moisture from oil, metering the amount of oil transported, and separating oil and gas in the pipeline during cleaning and emptying. The inlet of the integrated system is connected to the pig assembly in the supporting equipment to have the function of receiving the pig. The outlet of the integrated system is connected to the outlet elbow to have the function of connecting to the downstream of the pipeline.

[0018] This invention utilizes integrated unit technology to effectively integrate equipment such as filtration, metering, gas-liquid separation, and pigging components into a single unit. It enables oil filtration and metering during oil transportation, pre-pipeline cleaning filtration, and pig receiving functions, improving the efficiency of oil pipeline system tasks such as preparation, deployment, implementation support, and equipment withdrawal, and comprehensively enhancing the support capabilities of bulk oil transportation systems. This invention is installed at the end of the pipeline system, responsible for ensuring the quality and quantity of oil transported in bulk, and can also separate oil and gas within the pipeline and receive pigs during cleaning and emptying processes. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the principle of this utility model;

[0020] Figure 2 yes Figure 1 A magnified view of a portion of the image. Detailed Implementation

[0021] Please refer to the accompanying drawings for a detailed explanation of the structure and workflow of this application:

[0022] Figure 1 The integrated pipeline system 100 of this utility model includes a pig assembly 110 and a filter metering device 130. The pig assembly 110 is connected in series with the filter metering device 130 via valve 1. The pig assembly 110 and the filter metering device 130 are connected in parallel via a gas-liquid separator 120, which is connected in parallel by valves A and I. The pig assembly 110 includes an inlet pipe 111, on which a sampler 112 and a pressure reducing valve are installed. The inlet of the inlet pipe 111 is detachably connected to a pig receiving device 200. The pig receiving device 200 is made of a tee, which includes a main pipe and a branch pipe. The branch pipe of the pig receiving device 200 is detachably connected to the inlet of the inlet pipe 111. One end of the main pipe of the pig receiving device 200 is an inlet connected to the upstream oil pipeline, and the other end of the main pipe is an outlet, which is equipped with a plug.

[0023] The inlet pipeline 111, the filter metering device 130, and the gas-liquid separator 120 are all equipped with pressure gauges 102. The filter metering device 130 and the gas-liquid separator 120 are connected to the oil collection basin 101.

[0024] Figure 2 In the process, the filtration metering device 130 includes a filter separator 131, a coarse filter 132, and a flow meter 133. The coarse filter 132 includes two coarse filters arranged in parallel. One coarse filter is installed on pipeline one, and the other coarse filter is installed on pipeline two. Pipelines one and two are connected to the inlet of filter separator 131. The outlet of filter separator 131 is connected to pipeline three. The flow meter 133 is installed on pipeline three. Valves are installed at the inlet and outlet of filter separator 131. The inlets of pipeline one and two and the outlet of pipeline three are connected to outlet pipeline 114. A valve is installed on outlet pipeline 114. An outlet connector is detachably connected to the outlet of outlet pipeline 114. The outlet connector is an outlet elbow 201.

[0025] The filtration and metering device 130 adopts three operating modes: bypass, coarse filtration + metering, and coarse filtration + filtration separation + metering, to meet the needs of the end process of the oil pipeline system. The dual coarse filters are used in parallel and can be replaced online. The gas-liquid separator 120 is equipped with a two-stage flow limiter and has the ability to separate gas and liquid during the two-stage cyclone separation pipeline cleaning and emptying process. The pig assembly 110 has pressure reduction and pig receiving functions, which improves the guarantee capability of the bulk oil transportation system.

[0026] When the upstream oil pipeline completes its oil transportation operation and is in the gas cap venting stage, the pig delivery device at the front end of the upstream oil pipeline is loaded with a pig. Compressed gas is provided by the pressure test and venting container in front. The compressed air is used to force the pig from the pig delivery device into the upstream oil pipeline. The pig sweeps along the upstream oil pipeline. After the pig reaches the pig receiving device 200, the compressed air supply is stopped, the gas source is closed, and the internal pressure of the pig delivery device is released. The remaining oil or foreign matter in the upstream oil pipeline is swept into the downstream oil tank or oil tank of the oil pipeline from the pig assembly 110, gas-liquid separation device 120, and filter metering device 130 of this utility model.

[0027] After the pig receiving device 200 of the pig assembly 110 receives the pig ball 8, the plug-in plug assembly 103 is opened by the plug-in wrench to remove the pig ball 8. After removing the pig ball 8, the plug-in plug assembly 103 is plugged back in, and oil transfer operations can be carried out.

[0028] After the pigging and receiving process is completed and the cap is plugged, oil transportation operations can begin. The inlet of inlet pipeline 111 is connected to the oil pipeline, and the outlet of outlet pipeline 114 is connected to the oil tank or oil tank downstream of the oil pipeline.

[0029] During oil transportation operations, the valves at the inlet and outlet of the gas-liquid separator 120 are open, and the valves at the inlet and outlet of the filter separator 131 are open. The oil flow direction is: inlet of inlet pipeline 111 → inlet pipeline 111 → gas-liquid separation pipeline 120 → filter metering pipeline 130 → outlet of outlet pipeline 114 → downstream oil depot.

[0030] When the oil quality is high, close the valves at the inlet and outlet of the gas-liquid separator 120, close the valves at the inlet and outlet of the filter separator 131, and open the butterfly valves on the connecting branches 113 and 134. This allows the oil to flow directly from pipeline one, branch 134, and pipeline three to the outlet of the outlet pipeline 114 without passing through the gas-liquid separator 120 and the filter separator 131, thereby improving the overall system's fluid transfer efficiency.

[0031] When the oil quality is high, close the valves at the inlet and outlet of the gas-liquid separator 120, close the butterfly valves at both ends of the coarse filter, the inlet valve and the outlet valve of the filter separator 131, and open the valves on the connecting branch 113 and the outlet pipeline 114. The oil bypasses the gas-liquid separator 120 and the filter metering device 130 and flows directly out from the outlet of the outlet pipeline 114, further improving the overall system's liquid transfer efficiency.

Claims

1. An integrated auxiliary system for bulk oil transport, characterized in that: The system includes an integrated piping system (100), which includes a pig assembly (110) and a filter metering device (130). The pig assembly (110) is connected in series with the filter metering device (130) via a valve (1). A gas-liquid separator (120) is connected in parallel between the pig assembly (110) and the filter metering device (130). The gas-liquid separator (120) is connected in parallel by valves A and I. The pig assembly (110) includes an inlet pipe (111) with a sampler (112) on it. The pig assembly (110) also includes a pig receiving device (200) that is detachably connected to the inlet of the inlet pipe (111).

2. The integrated bulk oil batch conveying auxiliary system according to claim 1, characterized in that: The pig receiving device (200) is made of a tee, which includes a main pipe and a branch pipe. The branch pipe of the pig receiving device (200) can be detachably connected to the inlet of the inlet pipe (111). One end of the main pipe of the pig receiving device (200) is the inlet connected to the upstream oil pipeline, and the other end of the main pipe of the pig receiving device (200) is the outlet, with a plug at the outlet.

3. The integrated bulk oil batch conveying auxiliary system according to claim 2, characterized in that: The plug is installed at the outlet via an adapter.

4. The integrated bulk oil batch conveying auxiliary system according to claim 1, characterized in that: A connecting branch (113) is connected between the inlet pipe (111) and the filter metering device (130). A valve (1) is provided on the connecting branch (113), and a pressure reducing valve is provided on the inlet pipe (111).

5. The integrated bulk oil batch conveying auxiliary system according to claim 1, characterized in that: The gas-liquid separator (120) has valve A at the inlet and valve I at the outlet.

6. The integrated bulk oil batch conveying auxiliary system according to claim 2, characterized in that: The gas-liquid separator (120) is connected to the end of the inlet pipe (111) via valve A, and the gas-liquid separator (120) is connected to the outlet pipe (114) via valve I; a detachable connector is connected at the outlet of the outlet pipe (114); the connector is an outlet joint or a pig launching device, the outlet joint is an outlet elbow (201), and the branch pipe of the pig receiving device (200) is an elbow pipe, with the elbow pipe and the outlet elbow (201) arranged symmetrically.

7. The integrated bulk oil batch conveying auxiliary system according to claim 6, characterized in that: The filtration metering device (130) includes a filter separator (131), a coarse filter (132), and a flow meter (133).

8. The integrated bulk oil batch conveying auxiliary system according to claim 7, characterized in that: The coarse filter (132) includes two coarse filters arranged in parallel. One coarse filter is installed on pipe one and the other coarse filter is installed on pipe two. Pipe one and pipe two are connected to the inlet of filter separator (131). The outlet of filter separator (131) is connected to pipe three. A flow meter (133) is installed on pipe three. Valves are installed at the inlet and outlet of filter separator (131). The inlet of pipe one, the inlet of pipe two, and the outlet of pipe three are connected to the outlet pipe (114). A valve is installed on the outlet pipe (114). The inlet pipe (111) and pipe one are connected by a branch pipe (113). A valve (1) is installed on the branch pipe (113).

9. The integrated bulk oil batch conveying auxiliary system according to claim 7, characterized in that: The inlet of the filter separator (131) is connected in series with the outlet of the filter separator (131) via a branch (134), and a valve is provided on the branch (134); butterfly valves are installed at both ends of the coarse filter.

10. The integrated bulk oil batch conveying auxiliary system according to claim 7, characterized in that: When the oil quality is high, close valves A and I at the inlet and outlet of the gas-liquid separator (120), close the filter separator (131), and open the valves on the connecting branch (113) and branch (134) so ​​that the oil flows directly from pipeline one, branch (134) and pipeline three to the outlet of the outlet pipeline (114) through the gas-liquid separator (120) and filter separator (131). When the oil quality is high, close the gas-liquid separator (120) and the filter metering device (130), open the valves on the connecting branch (113) and the outlet pipe (114), and the oil flows out directly through the outlet of the outlet pipe (114) past the gas-liquid separator (120) and the filter metering device (130).

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