Oil transportation buffering and degassing device

Abstract

The utility model provides an oil transportation buffering and degassing device, and particularly relates to the technical field of oil transportation. The device comprises a tank body and an exhaust oil stopper, an oil input pipe is arranged at one end of the tank body; an oil output pipe and a discharging pipe are arranged at the bottom of the tank body; the tank wall, located below the oil input pipe, of the tank body is of a curved slope plate structure. An exhaust pipe is arranged at the top of the tank body, and the exhaust oil stopper is connected with the tank body through the exhaust pipe; a double-layer bubble screen is obliquely arranged in an inner cavity of the tank body; an inlet of the oil input pipe is communicated with an oil conveying pipeline, and an outlet of the oil output pipe is communicated with oil equipment to be used. The device is simple in structure and high in practicability; through three treatments of diameter-expanding buffer preliminary separation at an oil inlet, deep separation by a double-layer bubble screen in the tank and blocking by a liquid cutting plate at an oil outlet, gas elimination in the oil transportation process is realized, and the safety performance and the service life of pipelines or elements are ensured while the oil metering accuracy is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of oil transportation, in particular to an oil transportation buffering and degassing device. Background Art

[0002] At present, oil pipelines are often inevitably mixed with air due to operations such as pressure relief, vacuuming, line sweeping, and oil jacking during use and management. If the air is not exhausted effectively, there will inevitably be a problem of gas-liquid mixing during oil supply, which will lead to large measurement errors of the flow meter at the oil receiving end. On the one hand, it affects the accuracy of oil metering. On the other hand, the mixed gas poses potential risks to the oxidation cavitation of pipelines or components and the safety of the oil transportation process. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides an oil delivery buffer degassing device, and the specific technical solution is as follows:

[0004] An oil delivery buffer and degassing device comprises a tank body and an exhaust oil blocker; an oil input pipe is provided at one end of the tank body; an oil output pipe and a discharge pipe are provided on the side of the bottom of the tank body away from the oil input pipe; the tank wall of the tank body located below the oil input pipe adopts a curved slope plate structure; an exhaust pipe is provided on the top of the tank body, and the exhaust oil blocker is connected to the tank body through the exhaust pipe; a double-layer bubble screen is obliquely provided in the inner cavity of the tank body, and the oil input pipe and the oil output pipe are respectively located on both sides of the double-layer bubble screen; the inlet of the oil input pipe is connected to the oil pipeline, and the outlet of the oil output pipe is connected to the oil equipment to be used.

[0005] Preferably, the outlet of the exhaust pipe is connected to one of the openings of the three-way pipe through a first valve, the other opening of the three-way pipe is connected to the inlet of the exhaust oil blocker through a second valve, and the third opening of the three-way pipe is connected to the atmosphere outside the tank.

[0006] Preferably, a third valve is provided upstream of the opening of the three-way pipe communicating with the atmosphere outside the tank.

[0007] Preferably, the bottom of the double-layer bubble screen is inclined toward the side close to the tank slope structure.

[0008] Preferably, a liquid indicating connecting tube made of a transparent material is installed on the outside of the tank body, and both ends of the liquid indicating connecting tube are respectively connected to the top and the bottom of the inner cavity of the tank body.

[0009] Also preferably, the top of the tank body is provided with at least two groups of light-transmitting holes and observation holes.

[0010] Also preferably, the inner cavity of the tank body is provided with a horizontal guide plate through an oblique support, and the horizontal guide plate is located directly above the outlet of the oil input pipe.

[0011] Further preferably, the inner cavity of the tank body is further provided with a liquid cutting plate via a plurality of supporting legs, and the liquid cutting plate is located directly above the inlet of the oil output pipe.

[0012] Still further preferably, the oil input pipe inlet, the discharge pipe outlet and the oil output pipe outlet are all installed with quick connectors.

[0013] More preferably, the double-layer bubble screen includes a coarse-pore screen and a fine-pore screen arranged in parallel, wherein the coarse-pore screen is arranged on a side close to the oil inlet pipe; the mesh number of the coarse-pore screen is 10-20; the mesh number of the fine-pore screen is 30.

[0014] The beneficial effects of the utility model are:

[0015] The utility model realizes preliminary gas-liquid separation by expanding the diameter and buffering at the oil inlet by arranging a curved slope plate structure tank wall and a horizontal guide plate below the oil inlet pipe, and discharges most of the gas through the top exhaust oil blocker; then, a double-layer bubble screen with different mesh sizes is arranged in the tank to perform a secondary separation on the gas that is not completely separated from the oil; finally, a liquid cutting plate at the oil outlet blocks the oil from flowing out directly from the outlet at a high speed, and the residual gas is output along with the oil, and only the filtered oil located below the liquid cutting plate can be output to the oil equipment to be used. The triple treatment can not only ensure continuous degassing during the oil transportation process and improve the accuracy of the oil metering value, but also improve the oil transportation efficiency and ensure the safety performance and service life of the pipeline or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings that constitute the specification of this application are used to provide further understanding of this application and do not constitute improper limitations on this application.

[0017] Figure 1 This is the main view of the utility model;

[0018] Figure 2 It is a cross-sectional view of the utility model;

[0019] In the figure, 1-oil inlet pipe; 2-horizontal guide plate; 3-slope plate structure; 4-double-layer bubble screen; 5-oil outlet pipe; 51-liquid cutting plate; 6-discharge pipe; 61-quick connector; 7-exhaust oil blocker; 8-exhaust pipe; 81-first valve; 82-tee pipe; 83-second valve; 9-liquid indicator connecting pipe; 10-light-transmitting hole; 11-observation hole. DETAILED DESCRIPTION

[0020] The specific implementation of an oil delivery buffering and degassing device provided by the utility model is further described in conjunction with the drawings and embodiments.

[0021] like Figure 1 As shown, an oil delivery buffering and degassing device includes a tank body, wherein an oil input pipe 1 is provided at one end of the tank body; an oil output pipe 5 and a discharge pipe 6 are provided on the side of the bottom of the tank body away from the oil input pipe 1, the inlet of the oil input pipe 1 is connected to the oil pipeline, and the outlet of the oil output pipe 5 is connected to the oil equipment to be used (including but not limited to tank trucks, ships, vehicles, etc.).

[0022] like Figure 2 As shown, the tank wall of the tank body located below the oil inlet pipe 1 adopts a curved slope plate structure 3, and the inner cavity of the tank body is provided with a horizontal guide plate 2 through an oblique support. The horizontal guide plate 2 is located directly above the outlet of the oil inlet pipe 1. It is worth noting here that by providing the horizontal guide plate 2 and the slope plate structure 3, on the one hand, it plays a guiding role for the oil entering the tank to prevent it from being sprayed into the inner cavity of the tank body; on the other hand, it plays a diameter-changing role for the tank cavity to avoid the oil from generating vortexes in the cavity, limit the flow direction and flow rate of the oil, and thus realize diameter expansion buffering, and complete the preliminary separation and stratification of the oil and air (the air is located above the oil due to its lighter density).

[0023] Preferably, an exhaust oil blocker 7 and an exhaust pipe 8 are provided on the top of the tank body. Specifically, the outlet of the exhaust pipe 8 is connected to one of the openings of the three-way pipe 82 through a first valve 81, and the other opening of the three-way pipe 82 is connected to the inlet of the exhaust oil blocker 7 through a second valve 83. The third opening of the three-way pipe 82 is connected to the atmosphere outside the tank body, and a third valve is provided upstream of the opening of the three-way pipe 82 connected to the atmosphere outside the tank body. It is worth noting here that when a large amount of air enters the inner cavity of the tank body, the air pressure is too high, and the float in the exhaust oil blocker 7 will not be able to fall down on its own for a while, resulting in a situation where normal exhaust cannot be performed. At this time, the first valve 81 can be manually closed, and the second valve 83 and the third valve can be opened to connect the exhaust oil blocker 7 to the external atmospheric environment for pressure relief. After the float falls back, the third valve can be closed for normal exhaust.

[0024] Preferably, a double-layer bubble screen 4 is vertically and inclinedly provided in the inner cavity of the tank body (specifically, the bottom of the double-layer bubble screen 4 is inclined toward the side close to the slope structure 3). At this time, the oil input pipe 1 and the oil output pipe 5 are respectively located on both sides of the double-layer bubble screen 4; the double-layer bubble screen 4 includes a coarse-pore screen and a fine-pore screen arranged in parallel, wherein the coarse-pore screen is arranged on the side close to the oil input pipe 1; the mesh number of the coarse-pore screen is 10 to 20; the mesh number of the fine-pore screen is 30, which can well perform secondary separation of residual gas in the oil or in the inner cavity of the tank body.

[0025] Preferably, a liquid indicating connecting tube 9 made of a transparent material is installed on the outside of the tank body, and the two ends of the liquid indicating connecting tube 9 are respectively connected to the top and bottom of the tank body cavity. When air enters the tank, the air is located above the oil, causing the oil level to drop. Then, the staff can intuitively see the changes in the liquid level through the liquid indicating connecting tube 9 from the outside of the tank body and vent the gas in time.

[0026] Also preferably, at least two groups of light-transmitting holes and observation holes are provided on the top of the tank body to facilitate staff to observe the facilities inside the tank.

[0027] Further preferably, in order to prevent the gas from being swept up and re-mixed into the oil and transported to the oil equipment to be used due to the high-speed discharge of the oil during oil output, a liquid cutting plate 51 is also installed in the inner cavity of the tank body through a number of supporting legs. The liquid cutting plate 51 is located directly above the inlet of the oil output pipe 5 and its outer diameter is larger than the inlet diameter of the oil output pipe 5, so that when the oil is discharged, only the oil that has been precipitated and filtered at the bottom of the liquid cutting plate 51 can be discharged first.

[0028] Still further preferably, in order to facilitate installation and disassembly of the pipelines, quick connectors 61 are installed at the inlet of the oil input pipe 1 , the outlet of the oil output pipe 5 , and the outlet of the discharge pipe 6 .

[0029] During the oil delivery process, first, open the valve at the inlet of the oil input pipe 1 and keep the valve on the outlet side of the oil output pipe 5 closed, and inject oil into the inner cavity of the tank until it is full; then, exhaust is carried out through the exhaust oil blocker 7 until the liquid level shown in the liquid indicating connecting pipe 9 is stable and there is no gas in the tank; then, open the valve on the outlet side of the oil output pipe 5 (keep the valve at the inlet of the oil input pipe 1 open) to deliver oil to the oil equipment to be used, and at the same time observe the changes in the liquid level of the liquid indicating connecting pipe 9 in real time. If the float of the exhaust oil blocker 7 cannot fall back and cannot be exhausted, it is necessary to manually open the third valve to relieve the pressure until the exhaust oil blocker 7 can be exhausted normally.

[0030] It is worth noting that the dimensions of the various components in the present invention can be determined according to the actual requirements of the oil inlet pipe, the oil outlet pipe and the oil pressure, and the pressure inside the tank is not less than 1.0 MPa; in order to facilitate transportation, at least two lifting rings are symmetrically provided on the top of the tank body; and supporting feet are provided at the bottom of the tank body to ensure that the degassing device as a whole is at an optimal distance of about 40 cm from the ground.

[0031] The utility model has a simple structure and is convenient for disassembly, assembly and maintenance. First, by arranging a curved slope plate structure tank wall and a horizontal guide plate under the oil inlet pipe, preliminary gas-liquid separation of the diameter expansion buffer at the oil inlet is achieved, and most of the gas is discharged through the top exhaust oil blocker; then, by arranging a double-layer bubble screen with different mesh sizes in the tank, the gas that is not completely separated from the oil is subjected to a secondary separation; finally, the liquid cutting plate at the oil outlet prevents the oil from flowing out directly from the outlet at a high speed and the residual gas is output along with the oil, but only the filtered oil located below the liquid cutting plate can be output to the oil equipment to be used. The triple treatment can not only ensure continuous degassing during the oil transportation process and improve the accuracy of the oil metering value; it can also improve the oil transportation efficiency and ensure the safety performance and service life of the pipeline or component.

[0032] In the present invention, the directions or positional relationships indicated by terms such as "upper", "lower", "bottom", "top", etc. are based on the directions or positional relationships shown in the accompanying drawings. They are merely relational terms determined for the convenience of describing the structural relationships of the various parts or elements of the present invention. They do not specifically refer to the parts or elements of the present invention and cannot be understood as limitations on the present invention. Terms such as "connected" and "connect" should be understood in a broad sense, indicating that they can be fixedly connected, integrally connected, or detachably connected; they can be directly connected or indirectly connected through an intermediate medium. For relevant scientific research or technical personnel in this field, the specific meanings of the above terms in the present invention can be determined according to specific circumstances, and they cannot be understood as limitations on the present invention.

[0033] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. An oil delivery buffer and degassing device, comprising a tank body and an exhaust oil blocker; characterized in that: An oil inlet pipe is provided at one end of the tank body; an oil outlet pipe and a discharge pipe are provided on the side of the bottom of the tank body away from the oil inlet pipe; the tank wall of the tank body located below the oil inlet pipe adopts a curved slope plate structure; An exhaust pipe is provided on the top of the tank body, and the exhaust oil blocker is connected to the tank body through the exhaust pipe; A double-layer bubble screen is obliquely arranged in the inner cavity of the tank, and the oil input pipe and the oil output pipe are respectively located on both sides of the double-layer bubble screen; The inlet of the oil input pipe is connected to the oil pipeline, and the outlet of the oil output pipe is connected to the oil equipment to be used.

2. The oil delivery buffer and degassing device according to claim 1, characterized in that: The outlet of the exhaust pipe is connected to one of the openings of the three-way pipe through a first valve, the other opening of the three-way pipe is connected to the inlet of the exhaust oil blocker through a second valve, and the third opening of the three-way pipe is connected to the atmosphere outside the tank.

3. The oil delivery buffer and degassing device according to claim 2, characterized in that: A third valve is provided upstream of the opening of the three-way pipe communicating with the atmosphere outside the tank.

4. The oil delivery buffer and degassing device according to claim 1, characterized in that: The bottom of the double-layer bubble screen is inclined toward a side close to the tank body slope structure.

5. The oil delivery buffer and air eliminator according to claim 1, characterized in that: A liquid indicating communicating tube made of a transparent material is installed on the outside of the tank body, and two ends of the liquid indicating communicating tube are respectively communicated with the top and the bottom of the tank body cavity.

6. The oil delivery buffer and air eliminator according to claim 1, characterized in that: The top of the tank body is provided with at least two groups of light-transmitting holes and observation holes.

7. The oil delivery buffer and degassing device according to claim 1, characterized in that: A horizontal guide plate is provided in the inner cavity of the tank body through an oblique support, and the horizontal guide plate is located just above the outlet of the oil input pipe.

8. The oil delivery buffering and degassing device according to claim 1, characterized in that: A liquid cutting plate is also installed in the inner cavity of the tank body through a plurality of supporting legs. The liquid cutting plate is located just above the inlet of the oil output pipe.

9. The oil delivery buffer and air eliminator according to claim 1, characterized in that: The oil input pipe inlet, the discharge pipe outlet and the oil output pipe outlet are all equipped with quick connectors.

10. The oil delivery buffering and degassing device according to claim 4, characterized in that: The double-layer bubble screen includes a coarse-pore screen and a fine-pore screen arranged in parallel, wherein the coarse-pore screen is arranged on a side close to the oil input pipe; The mesh number of the coarse-pore screen is 10-20; the mesh number of the fine-pore screen is 30.

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