Long-distance pipeline accumulated liquid discharging device

Abstract

The utility model provides a long-distance pipeline accumulated liquid discharging device, and relates to the field of accumulated liquid discharging devices, the long-distance pipeline accumulated liquid discharging device comprises a control panel, the control panel is inserted in a mounting seat, through the arrangement of two sets of flow channel mechanisms, accumulated liquid in a natural gas pipeline can be discharged on the premise that the whole natural gas pipeline is not closed, and the whole natural gas pipeline is not closed. The device is convenient and flexible to use, the use experience of a terminal user is not affected, meanwhile, the two flow channel mechanisms follow the liquid discharging rule that gas is cut off first and then liquid is discharged, the phenomenon of natural gas leakage does not occur in the liquid discharging process, use is stable, and the problem that according to an existing mode that accumulated liquid in a natural gas pipeline is discharged through a liquid discharging valve, the using cost is low is solved. And during operation, the whole conveying pipeline needs to be closed, so that the problems that when the liquid discharging valve discharges liquid, natural gas can also leak from the liquid discharging valve, normal conveying and using of the natural gas can be affected by closing the whole conveying pipeline, and the using experience of a terminal user is affected are solved.

Description

A device for draining accumulated liquid in long-distance pipelines Technical Field

[0001] This utility model relates to the technical field of liquid drainage devices, and in particular to a liquid drainage device for long-distance pipelines. Background Technology

[0002] Natural gas long-distance pipelines refer to pipelines that transport natural gas over long distances. During long-distance transportation, water and heavy hydrocarbon components are prone to undergo gas-liquid phase changes and precipitate out. These components cannot be completely carried out during pipeline transportation, resulting in the formation of liquid accumulation in low-lying areas of the undulating pipeline. Therefore, it is necessary to install a drain valve at the lower end of the pipeline at regular intervals. By controlling the opening and closing of the drain valve, these accumulated liquids can be removed, ensuring the normal transportation of natural gas.

[0003] The existing method of draining liquid from natural gas pipelines requires shutting down the entire pipeline during operation to prevent natural gas from leaking out of the drain valve while it is draining. However, shutting down the entire pipeline will affect the normal delivery and use of natural gas, impacting the user experience for end users. This method is inflexible and not very practical. Summary of the Invention

[0004] This utility model relates to a liquid drainage device for long-distance pipelines, which has a flow channel mechanism. By setting up two sets of flow channel mechanisms, it is possible to drain the liquid inside the natural gas pipeline without shutting down the entire natural gas pipeline. It is convenient and flexible to use and will not affect the user experience of the end user. At the same time, the two flow channel mechanisms follow the liquid drainage rule of cutting off the gas first and then draining the liquid, so there will be no natural gas leakage during the liquid drainage process. It is stable in use and has extremely high flexibility, stability and practicality.

[0005] This utility model provides a device for draining accumulated liquid in a long-distance pipeline, specifically including: a connecting assembly, a control board, a flow channel mechanism, a conveying pipeline, and a hydraulic push rod. The connecting assembly includes a connecting pipeline and a mounting base. The mounting base is fixedly installed on the side of the connecting pipeline, and the conveying pipeline is fixedly connected to the connecting pipeline. The control board is inserted into the interior of the mounting base, and the hydraulic push rod is fixedly installed on the exterior of the mounting base, with its top end fixedly installed on the side of the control board. The flow channel mechanism includes an opening / closing valve and a linkage seat. The opening / closing valve is rotatably connected to the interior of the connecting pipeline, and the linkage seat is inserted into the interior of the mounting base.

[0006] Furthermore, the interior of the connecting pipe is provided with a connecting channel, a liquid accumulation channel and a discharge channel from top to bottom, and the conveying pipe flows through the connecting channel, while the two ends of the liquid accumulation channel are connected to the connecting channel and the discharge channel respectively.

[0007] Furthermore, the flow channel mechanism is provided in two sets, and the two sets of flow channel mechanisms are respectively set at the upper and lower ends of the liquid accumulation channel, and the included angle between the internal channels of the opening and closing valve column of the two sets of flow channel mechanisms is ninety degrees.

[0008] Furthermore, the control board has an internal linkage groove, which consists of an inclined opening and closing groove and a vertical holding groove, and the groove bodies of the holding groove and the opening and closing groove are connected to each other.

[0009] Furthermore, the linkage groove is provided in two sets: the retaining groove of the top linkage groove is located at the top of the opening and closing groove, and the retaining groove of the bottom linkage groove is located at the bottom of the opening and closing groove.

[0010] Furthermore, the rotating shaft of the valve column and the linkage seat are connected by a gear and rack transmission, and the linkage seat is provided with a linkage column on its side. The linkage columns of the two sets of flow channel mechanisms are respectively inserted into the interior of the two sets of linkage slots.

[0011] This utility model provides a device for draining accumulated liquid in long-distance pipelines, which has the following beneficial effects:

[0012] By setting up two sets of flow channels, it is possible to drain the liquid inside the natural gas pipeline without shutting down the entire pipeline. This is convenient and flexible to use and will not affect the user experience of the end users. At the same time, the two flow channels follow the principle of shutting off the gas first and then draining the liquid, so there will be no natural gas leakage during the liquid draining process. The operation is stable, which improves the flexibility, stability and practicality of the device. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0014] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0015] In the attached diagram:

[0016] Figure 1 shows a schematic diagram of the structure of this utility model.

[0017] Figure 2 shows a schematic diagram of the internal channel structure of this utility model.

[0018] Figure 3 shows a schematic diagram of the internal structure of the present invention when collecting liquid accumulated in a pipe.

[0019] Figure 4 shows a schematic diagram of the disassembled flow channel mechanism and control board of this utility model.

[0020] Figure 5 shows a schematic diagram of the internal structure of the hydraulic push rod in Figure 2 of this utility model when it retracts.

[0021] Figure 6 shows a schematic diagram of the internal structure of this utility model when draining liquid accumulated in the pipe.

[0022] List of reference numerals

[0023] 1. Connecting component; 101. Connecting pipe; 1011. Connecting channel; 1012. Liquid accumulation channel; 1013. Drainage channel; 102. Mounting base;

[0024] 2. Control panel; 201. Opening / closing slot; 202. Holding slot;

[0025] 3. Flow channel mechanism; 301. Opening and closing valve spool; 302. Linkage seat; 3021. Linkage column;

[0026] 4. Delivery pipelines;

[0027] 5. Hydraulic push rod. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] Please refer to Figures 1 to 6: Example 1:

[0030] This utility model proposes a device for draining accumulated liquid in a long-distance pipeline, comprising: a connecting assembly 1, a control plate 2, a flow channel mechanism 3, a conveying pipeline 4, and a hydraulic push rod 5. The connecting assembly 1 includes a connecting pipeline 101 and a mounting base 102. The mounting base 102 is fixedly installed on the side of the connecting pipeline 101, and the conveying pipeline 4 is fixedly connected to the connecting pipeline 101. The control plate 2 is inserted into the interior of the mounting base 102, and the hydraulic push rod 5 is fixedly installed on the exterior of the mounting base 102, with the top end of the hydraulic push rod 5 fixedly installed on the side of the control plate 2. The flow channel mechanism 3 includes an opening and closing valve spool 301 and a linkage seat 302. The opening and closing valve spool 301 is rotatably connected to the interior of the connecting pipeline 101, and the linkage seat 302 is inserted into the interior of the mounting base 102.

[0031] The connecting pipe 101 has a connecting channel 1011, a liquid accumulation channel 1012, and a discharge channel 1013 arranged sequentially from top to bottom inside. The conveying pipe 4 flows through the connecting channel 1011. The two ends of the liquid accumulation channel 1012 are connected to the connecting channel 1011 and the discharge channel 1013, respectively. In use, the connecting component 1 can connect the conveying pipe 4 to achieve long-distance natural gas transportation. With the setting of two sets of flow channel mechanisms 3, the liquid accumulation inside the pipe can be collected and discharged. When collecting the liquid, the top flow channel mechanism 3 is in the open state and the bottom flow channel mechanism 3 is in the closed state. The liquid can enter the liquid accumulation channel 1012 from the connecting channel 1011. Since the bottom flow channel mechanism 3 is closed, the liquid cannot be discharged. The liquid will be temporarily stored inside the liquid accumulation channel 1012 for subsequent discharge operations, which is convenient to use.

[0032] The flow channel mechanism 3 has two sets, which are respectively located at the upper and lower ends of the liquid accumulation channel 1012. The included angle between the internal channels of the opening and closing valve column 301 of the two sets of flow channel mechanisms 3 is 90 degrees. In use, when it is necessary to discharge the collected liquid from the inside of the pipeline, it is only necessary to control the hydraulic push rod 5 to retract. After the hydraulic push rod 5 retracts, it can drive the control plate 2 to move down. When the control plate 2 moves down, it can close the top flow channel mechanism 3 and open the bottom flow channel mechanism 3. Thus, after the top flow channel mechanism 3 is closed, it can cut off the connection between the connecting channel 1011 and the liquid accumulation channel 1012, so as to avoid natural gas leakage during liquid discharge. After the bottom flow channel mechanism 3 is opened, the liquid inside the liquid accumulation channel 1012 can be discharged from the inside of the discharge channel 1013. It is stable in use, convenient for liquid discharge, and does not require shutting down the entire natural gas pipeline. Liquid discharge is fast and convenient. After the liquid discharge is completed, controlling the hydraulic push rod 5 to extend can drive the two sets of flow channel mechanisms 3 to reset, restoring the function of transporting natural gas and collecting liquid. Switching is fast and convenient.

[0033] The control panel 2 has an internal linkage groove, which consists of an inclined opening / closing groove 201 and a vertically arranged holding groove 202. The holding groove 202 and the opening / closing groove 201 are interconnected. There are two sets of linkage grooves: the holding groove 202 of the top linkage groove is located at the top of the opening / closing groove 201, and the holding groove 202 of the bottom linkage groove is located at the bottom of the opening / closing groove 201. The rotating shaft of the opening / closing valve column 301 and the linkage seat 302 are connected by a gear and rack transmission. The side of the moving seat 302 is provided with a linkage column 3021. The linkage columns 3021 of the two sets of flow channel mechanisms 3 are respectively inserted into the interior of the two sets of linkage slots. In use, during liquid discharge, the two flow channel mechanisms 3 follow the opening and closing rule of first cutting off the gas and then discharging the liquid. When the control plate 2 moves down, the opening and closing slot 201 of the top linkage slot will drive the linkage seat 302 to move through the linkage column 3021 of the top flow channel mechanism 3. When the linkage seat 302 moves, it can drive the corresponding opening and closing valve column 301 to rotate and open the channel. When the bottom linkage groove is closed, the holding groove 202 of the bottom linkage groove will not change the usage position of the linkage column 3021 of the bottom flow channel mechanism 3, so the usage state of the bottom flow channel mechanism 3 will not change. This realizes the function of cutting off the connecting channel 1011 first when draining liquid. Afterwards, when the control plate 2 continues to move down, the top linkage column 3021 will move inside the holding groove 202 of the top linkage groove, so the usage state of the top flow channel mechanism 3 will not change and can remain closed. The opening and closing groove 201 of the bottom linkage groove will drive the opening and closing valve column 301 of the bottom flow channel mechanism 3 to rotate, thereby opening the bottom of the liquid accumulation channel 1012, so that the liquid can flow out automatically. Similarly, when the liquid collection is restored (hydraulic push rod 5 extends), the bottom flow channel mechanism 3 will first block the bottom of the liquid accumulation channel 1012 before the top flow channel mechanism 3 will open to realize the liquid collection function. This can effectively avoid the occurrence of natural gas leakage when draining liquid and switching usage states, and ensure stable use.

[0034] The working principle of this embodiment is as follows: The connecting component 1 enables the connection of the conveying pipeline 4, thereby achieving long-distance natural gas transportation. With the two sets of flow channel mechanisms 3, it can collect and remove accumulated liquid inside the pipeline. When collecting accumulated liquid, the top flow channel mechanism 3 is in the open state, and the bottom flow channel mechanism 3 is in the closed state. This allows the accumulated liquid to enter the liquid accumulation channel 1012 from the connecting channel 1011. Because the bottom flow channel mechanism 3 is closed, the accumulated liquid cannot be discharged and will temporarily remain inside the liquid accumulation channel 1012 for subsequent removal. When it is necessary to remove the collected liquid from inside the pipeline, only... Simply retract the hydraulic push rod 5. After retraction, the hydraulic push rod 5 drives the control plate 2 downward. When the control plate 2 moves downward, it closes the top flow channel mechanism 3 and opens the bottom flow channel mechanism 3. Thus, closing the top flow channel mechanism 3 cuts off the connection between the connecting channel 1011 and the liquid accumulation channel 1012, preventing natural gas leakage during drainage. Opening the bottom flow channel mechanism 3 allows the liquid inside the liquid accumulation channel 1012 to be drained from the inside of the discharge channel 1013. The system is stable, easy to drain, and does not require shutting down the entire natural gas pipeline. Draining is quick and convenient. After drainage is complete, extending the hydraulic push rod 5 will reset both sets of flow channel mechanisms 3, restoring the connection. The natural gas transportation and liquid collection functions are performed by two flow channel mechanisms 3 following the principle of cutting off gas supply before draining liquid during the liquid discharge process. When the control plate 2 moves downward, the opening and closing slot 201 of the top linkage slot will drive the linkage seat 302 to move through the linkage column 3021 of the top flow channel mechanism 3. When the linkage seat 302 moves, it can drive the corresponding opening and closing valve column 301 to rotate and close the channel. At this time, the holding slot 202 of the bottom linkage slot will not change the usage position of the linkage column 3021 of the bottom flow channel mechanism 3, so the bottom flow channel mechanism 3 will not change its usage state, realizing the function of cutting off the connecting channel 1011 first during liquid discharge. Afterward, when the control plate 2 continues to move downward... The top linkage column 3021 moves inside the retaining groove 202 of the top linkage groove, so that the use state of the top flow channel mechanism 3 will not change and can remain in the closed state. The opening and closing groove 201 of the bottom linkage groove will drive the opening and closing valve column 301 of the bottom flow channel mechanism 3 to rotate, thereby opening the bottom of the liquid accumulation channel 1012, so that the liquid can flow out automatically. Similarly, when the liquid collection is restored (hydraulic push rod 5 extends), the bottom flow channel mechanism 3 will first block the bottom of the liquid accumulation channel 1012 before the top flow channel mechanism 3 opens to realize the liquid collection function, which can effectively prevent natural gas leakage when draining or switching the use state.

Claims

1. A device for draining accumulated liquid in a long-distance pipeline, characterized in that, include: The assembly comprises a connecting component (1), a control board (2), a flow channel mechanism (3), a conveying pipe (4), and a hydraulic push rod (5). The connecting component (1) includes a connecting pipe (101) and a mounting base (102). The mounting base (102) is fixedly installed on the side of the connecting pipe (101), and the conveying pipe (4) is fixedly connected to the connecting pipe (101). The control board (2) is inserted into the interior of the mounting base (102), and the hydraulic push rod (5) is fixedly installed on the exterior of the mounting base (102), with the top end of the hydraulic push rod (5) fixedly installed on the side of the control board (2). The flow channel mechanism (3) includes an opening and closing valve column (301) and a linkage seat (302). The opening and closing valve column (301) is rotatably connected to the interior of the connecting pipe (101), and the linkage seat (302) is inserted into the interior of the mounting base (102).

2. The long-distance pipeline liquid drainage device according to claim 1, characterized in that, The interior of the connecting pipe (101) is provided with a connecting channel (1011), a liquid accumulation channel (1012) and a discharge channel (1013) from top to bottom. The conveying pipe (4) flows through the connecting channel (1011), and the two ends of the liquid accumulation channel (1012) are connected to the connecting channel (1011) and the discharge channel (1013) respectively.

3. The long-distance pipeline liquid drainage device according to claim 2, characterized in that, The flow channel mechanism (3) is provided in two sets, and the two sets of flow channel mechanisms (3) are respectively set at the upper and lower ends of the liquid accumulation channel (1012). The included angle between the internal channels of the opening and closing valve column (301) of the two sets of flow channel mechanisms (3) is ninety degrees.

4. The long-distance pipeline liquid drainage device according to claim 3, characterized in that, The control panel (2) is provided with a linkage groove inside. The linkage groove is composed of an inclined opening and closing groove (201) and a vertically arranged holding groove (202), and the groove bodies of the holding groove (202) and the opening and closing groove (201) are connected to each other.

5. A long-distance pipeline liquid drainage device according to claim 4, characterized in that, The linkage groove is provided in two sets. The retaining groove (202) of the top linkage groove is located at the top of the opening and closing groove (201), and the retaining groove (202) of the bottom linkage groove is located at the bottom of the opening and closing groove (201).

6. A liquid drainage device for long-distance pipelines according to claim 5, characterized in that, The rotating shaft of the valve column (301) and the linkage seat (302) are connected by a gear and rack transmission, and the linkage seat (302) is provided with a linkage column (3021) on the side. The linkage columns (3021) of the two sets of flow channel mechanisms (3) are respectively inserted into the interior of the two sets of linkage slots.

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