Water hammer preventing system for oil conveying pipe

Abstract

The utility model discloses a water attack prevention system for an oil conveying pipe, and discloses a water attack prevention system for the oil conveying pipe, which can effectively reduce the safety problem caused by a water attack phenomenon and release pipeline pressure. An oil delivery pipe water hammer prevention system comprises an oil delivery pipe, a pressure relief pipe, a pressure relief tank and an automatic pressure relief valve. One end of the pressure relief pipe is communicated with the oil conveying pipe, and the pressure relief tank is communicated with the other end of the pressure relief pipe. And the pressure relief valve is arranged on the pressure relief pipe. The pressure relief valve controls connection or disconnection of the oil conveying pipe and the pressure relief tank. The opening pressure of the pressure release valve can be adjusted according to requirements. By combining the communication design of the oil delivery pipe and the pressure relief tank, pressure can be released in a graded manner when water attack occurs, pressure shock in the oil delivery pipe is effectively relieved, damage to the pipe body is avoided, and the system safety is improved.

Description

Technical Field

[0001] This utility model relates to the field of oil transportation technology, and in particular to a waterproof system for oil pipelines. Background Technology

[0002] In oil pipeline systems, pressure surges caused by water hammer often lead to pipeline vibration and even structural damage. Traditional pressure relief devices generally use pressure relief valves with fixed opening pressures, which are difficult to adapt to dynamically changing transportation conditions. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a water hammer prevention system for oil pipelines, which can effectively reduce safety problems caused by water hammer and relieve pipeline pressure.

[0004] An oil pipeline waterproofing system according to an embodiment of the present invention includes an oil pipeline, a pressure relief pipe, a pressure relief tank, and an automatic pressure relief valve. One end of the pressure relief pipe is connected to the oil pipeline; the pressure relief tank is connected to the other end of the pressure relief pipe; the automatic pressure relief valve is installed on the pressure relief pipe, and the automatic pressure relief valve controls the connection or disconnection between the oil pipeline and the pressure relief tank. The pressure opening pressure of the automatic pressure relief valve can be adjusted as needed.

[0005] The system offers at least the following advantages: A water hammer prevention system for oil pipelines includes an oil pipeline, a pressure relief pipe, a pressure relief tank, and an automatic pressure relief valve. One end of the pressure relief pipe is connected to the oil pipeline, and the pressure relief tank is connected to the other end of the pressure relief pipe. The pressure relief valve is installed on the pressure relief pipe. The pressure relief valve controls the connection or disconnection between the oil pipeline and the pressure relief tank. The opening pressure of the pressure relief valve can be adjusted as needed. The adjustable opening and closing pressure of the pressure relief valve, combined with the connection design between the oil pipeline and the pressure relief tank, allows for staged pressure release during water hammer, effectively mitigating sudden pressure changes within the oil pipeline, preventing pipe damage, and improving system safety.

[0006] According to some embodiments of the present invention, the pressure relief pipe includes a pressure relief main pipe and a plurality of pressure relief branch pipes, the two ends of the plurality of pressure relief branch pipes being respectively connected to the pressure relief main pipe and the oil supply pipe.

[0007] According to some embodiments of this utility model, each of the pressure relief branch pipes is equipped with an automatic pressure relief valve.

[0008] According to some embodiments of the present invention, the pressure relief pipe further includes an active pressure relief pipe and an active pressure relief valve. One end of the active pressure relief pipe is connected to the oil pipeline, and the other end is connected to the pressure relief tank. The active pressure relief valve is disposed on the active pressure relief pipe.

[0009] According to some embodiments of this utility model, the automatic pressure relief valve includes a valve seat, a valve core, a valve stem, an elastic reset member, and a valve cover. The valve seat is provided with an inlet, an outlet, and a valve port. The valve cover is disposed on the valve seat. The valve core is movably disposed in the valve cover. The elastic reset member is disposed in the valve cover. One end of the elastic reset member abuts against the valve core, and the other end abuts against the valve cover. The valve stem is inserted into the valve core and slides axially along the valve cover with the valve core. One end of the valve stem near the valve seat is movably inserted into the valve port.

[0010] According to some embodiments of this utility model, the elastic reset element is a compression spring.

[0011] According to some embodiments of this utility model, the end of the valve stem near the valve port is frustum-shaped.

[0012] According to some embodiments of the present invention, the automatic pressure relief valve is provided with a pressure regulating mechanism, the pressure regulating mechanism includes an adjusting threaded hole and an adjusting screw, the valve core is provided with a plurality of adjusting threaded holes, the adjusting screw is screwed in the adjusting threaded hole, and the end of the adjusting screw abuts against the valve stem to fix the valve stem.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0015] Figure 1 This is a schematic diagram of the pipeline according to an embodiment of the present utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the automatic pressure relief valve according to an embodiment of the present invention. Figure 1 (closure);

[0017] Figure 3 This is a schematic diagram of the valve core structure in an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the valve stem structure in an embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of the automatic pressure relief valve according to an embodiment of the present invention. Figure 2 (Start). Detailed Implementation

[0020] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0022] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0023] Reference Figures 1 to 5 An oil pipeline waterproofing system includes an oil pipeline 10, a pressure relief pipe 20, a pressure relief tank 30, and an automatic pressure relief valve 40. One end of the pressure relief pipe 20 is connected to the oil pipeline 10, and the pressure relief tank 30 is connected to the other end of the pressure relief pipe 20. The automatic pressure relief valve 40 is installed on the pressure relief pipe 20. The automatic pressure relief valve 40 controls the connection or disconnection between the oil pipeline 10 and the pressure relief tank 30. The pressure opening pressure of the automatic pressure relief valve 40 can be adjusted as needed.

[0024] Understandably, the automatic pressure relief valve 40 can adjust the opening and closing pressure. Combined with the connection design between the oil pipeline 10 and the pressure relief tank 30, it can release pressure in stages when water hammer occurs, effectively alleviate the sudden pressure change in the oil pipeline 10, avoid damage to the pipeline body, and improve system safety.

[0025] Reference Figures 1 to 5 The pressure relief pipe 20 includes a pressure relief main pipe 21 and several pressure relief branch pipes 22. The two ends of the several pressure relief branch pipes 22 are respectively connected to the pressure relief main pipe 21 and the oil pipeline 10.

[0026] Understandably, the multi-branch design allows the pressure relief branch pipe 22 to cover the key nodes of the oil pipeline 10, forming a pressure gradient buffer zone. This ensures that in the event of local pressure anomalies, the system can quickly divert the flow through the pressure relief main pipe 21, reducing the risk of single-point failure.

[0027] Reference Figures 1 to 5 Each pressure relief branch pipe 22 is equipped with an automatic pressure relief valve 40.

[0028] Understandably, the scheme of equipping each pressure relief branch 22 with an automatic pressure relief valve 40 can achieve independent control of each section. When an overpressure occurs in a certain section of the oil pipeline 10, the automatic pressure relief valve 40 of the corresponding branch will automatically relieve the pressure, avoiding the impact on the rest of the system and improving the accuracy of control.

[0029] Reference Figure 4 The pressure relief pipe 20 also includes an active pressure relief pipe 23 and an active pressure relief valve 24. One end of the active pressure relief pipe 23 is connected to the oil supply pipe 10, and the other end is connected to the pressure relief tank 30. The active pressure relief valve 24 is installed on the active pressure relief pipe 23.

[0030] Understandably, the design of the active pressure relief pipe 23 and the active pressure relief valve 24 provides a dual active and passive protection mechanism. When the staff determines that there is a safety hazard, they can manually activate the active pressure relief valve 24 to quickly release the pressure and prevent the system from entering a dangerous state.

[0031] It is worth noting that in some embodiments of this utility model, the active pressure relief valve 24 can be a valve body such as a solenoid valve or a manual ball valve.

[0032] Reference Figures 1 to 5 The automatic pressure relief valve 40 includes a valve seat 41, a valve core 42, a valve stem 43, a resilient reset member 44, and a valve cover 45. The valve seat 41 has an inlet 411, an outlet 412, and a valve port 413. The valve cover 45 is mounted on the valve seat 41. The valve core 42 is movably mounted within the valve cover 45. The resilient reset member 44 is mounted within the valve cover 45. One end of the resilient reset member 44 abuts against the valve core 42, and the other end abuts against the valve cover 45. The valve stem 43 is inserted into the valve core 42. The valve stem 43 slides axially along the valve cover 45 with the valve core 42. One end of the valve stem 43 near the valve seat 41 is movably inserted into the valve port 413.

[0033] Reference Figures 1 to 5 The elastic reset element 44 is a compression spring.

[0034] Reference Figures 1 to 5 The end of the valve stem 43 near the valve port 413 is frustum-shaped.

[0035] Understandably, when the pressure applied by the inlet 411 to the valve stem 43 is greater than the thrust applied by the elastic reset member 44 to the valve stem 43, the valve stem 43 is pushed, and the valve port 413 opens, connecting the inlet 411 and the outlet 412 to relieve pressure. When the pipeline pressure is insufficient to keep the valve stem 43 open, the valve stem 43 closes the valve port 413 under the push of the elastic reset member 44.

[0036] Reference Figures 1 to 5The automatic pressure relief valve 40 is equipped with a pressure regulating mechanism 46. The pressure regulating mechanism 46 includes an adjusting threaded hole 461 and an adjusting screw 462. The valve core 42 has several adjusting threaded holes 461. The adjusting screw 462 is screwed into the adjusting threaded hole 461. The end of the adjusting screw 462 abuts against the valve stem 43 to fix the valve stem 43.

[0037] Understandably, the pressure regulating mechanism 46 can precisely adjust the opening and closing pressure of the automatic pressure relief valve 40 by adjusting the screw depth of the adjusting screw 462, so as to adapt to different working conditions.

[0038] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A waterproofing system for oil pipelines, characterized in that, include: Oil pipeline (10); Pressure relief pipe (20), one end of which is connected to the oil pipeline (10); Pressure relief tank (30), the other end of which is connected to the pressure relief pipe (20); Automatic pressure relief valve (40) is installed on the pressure relief pipe (20). The automatic pressure relief valve (40) controls the connection or disconnection between the oil pipeline (10) and the pressure relief tank (30). The pressure opening pressure of the automatic pressure relief valve (40) can be adjusted according to the requirements.

2. The oil pipeline waterproofing system according to claim 1, characterized in that, The pressure relief pipe (20) includes a pressure relief main pipe (21) and a plurality of pressure relief branch pipes (22), the two ends of which are respectively connected to the pressure relief main pipe (21) and the oil pipeline (10).

3. The oil pipeline waterproofing system according to claim 2, characterized in that, Each of the pressure relief branch pipes (22) is equipped with an automatic pressure relief valve (40).

4. The oil pipeline waterproofing system according to claim 1, characterized in that, The pressure relief pipe (20) also includes an active pressure relief pipe (23) and an active pressure relief valve (24). One end of the active pressure relief pipe (23) is connected to the oil pipeline (10), and the other end is connected to the pressure relief tank (30). The active pressure relief valve (24) is installed on the active pressure relief pipe (23).

5. The oil pipeline waterproofing system according to claim 1, characterized in that, The automatic pressure relief valve (40) includes a valve seat (41), a valve core (42), a valve stem (43), an elastic reset member (44), and a valve cover (45). The valve seat (41) is provided with an inlet (411), an outlet (412), and a valve port (413). The valve cover (45) is disposed on the valve seat (41). The valve core (42) is movably disposed in the valve cover (45). The elastic reset member (44) is disposed in the valve cover (45). One end of the elastic reset member (44) abuts against the valve core (42), and the other end abuts against the valve cover (45). The valve stem (43) is inserted into the valve core (42). The valve stem (43) slides along the axial direction of the valve cover (45) with the valve core (42). One end of the valve stem (43) near the valve seat (41) is movably inserted into the valve port (413).

6. The oil pipeline waterproofing system according to claim 5, characterized in that, The elastic reset element (44) is a compression spring.

7. A waterproof pipeline system for oil pipelines according to claim 5, characterized in that, The valve stem (43) is frustum-shaped at the end near the valve port (413).

8. A waterproof pipeline system for preventing water hammer according to claim 5, characterized in that, The automatic pressure relief valve (40) is provided with a pressure regulating mechanism (46), which includes an adjusting threaded hole (461) and an adjusting screw (462). The valve core (42) is provided with a plurality of adjusting threaded holes (461), and the adjusting screw (462) is screwed in the adjusting threaded hole (461). The end of the adjusting screw (462) abuts against the valve stem (43) to fix the valve stem (43).

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