Device for removing accumulated liquid in natural gas pipeline

Abstract

The utility model relates to the technical field of natural gas pipeline drainage, in particular to a natural gas pipeline accumulated liquid discharging device which comprises a pipe body, an eccentric concave portion fixedly connected to the bottom of the pipe body, a liquid discharging pipe fixedly connected to the bottom of the eccentric concave portion, a concave portion arranged at the top end of the liquid discharging pipe, an electric control valve installed in the liquid discharging pipe, and a liquid collecting tank in threaded connection with the bottom end of the liquid discharging pipe. An exhaust port is formed in one side of the upper portion of the liquid collecting tank, a vertical pipe is fixedly connected to one side of the bottom in the eccentric concave part, and a triggering mechanism used for triggering the electric control valve is arranged in the vertical pipe. The trigger mechanism is matched with the electric control valve, accumulated liquid is automatically discharged, the efficiency and convenience of pipeline maintenance are improved, natural gas can be effectively prevented from leaking to the liquid collecting tank from the pipeline through the liquid seal design of the electric control valve, meanwhile, air in the liquid collecting tank is prevented from entering the natural gas pipeline, and the safety of the natural gas pipeline is improved. Therefore, the quality of natural gas and the transportation efficiency of the pipeline are kept.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural gas pipeline liquid discharge technical field especially relates to a natural gas pipeline liquid discharge device. BACKGROUND

[0002] Natural gas is transported through the transportation pipeline, because the transportation pipeline is generally long, and the natural gas will produce liquid accumulation in the pipeline during long-distance transportation, if the liquid accumulation is not treated, it will easily lead to the increase of the pressure in the pipeline, increase the risk of pipeline damage, and long-term liquid accumulation can easily cause corrosion to the inner wall of the pipeline, shorten the service life of the pipeline, therefore, the liquid accumulation needs to be discharged and treated.

[0003] The existing natural gas pipeline liquid discharge device will cause the natural gas in the pipeline to leak into the liquid accumulation collection container through the liquid discharge hole during use, causing the waste of natural gas, or the air in the liquid accumulation collection container will enter the natural gas pipeline through the liquid discharge hole, reducing the quality of the natural gas. UTILITY MODEL CONTENTS

[0004] In order to overcome the shortcomings of the prior art, the utility model provides a natural gas pipeline liquid discharge device.

[0005] Technical scheme: a natural gas pipeline liquid discharge device, including the pipe body, the eccentric recess is fixedly connected at the bottom of the pipe body, the liquid discharge pipe is fixedly connected at the bottom of the eccentric recess, the top end of the liquid discharge pipe has a recess, the electric control valve is installed in the liquid discharge pipe, the bottom end of the liquid discharge pipe is screwedly connected with the liquid collecting tank, the exhaust port is opened in one side of the upper portion of the liquid collecting tank, the vertical pipe is fixedly connected on one side of the inner bottom of the eccentric recess, the trigger mechanism for triggering the electric control valve is arranged in the vertical pipe.

[0006] In addition, it is particularly preferred that the trigger mechanism comprises a floating plate and trigger switches, a sliding groove is formed in one side of the vertical pipe, the floating plate is slidably connected in the sliding groove, and the two trigger switches are respectively installed at the top and bottom of the sliding groove; the trigger switch at the top is used for cooperating with the upper portion of the floating plate to trigger the electric control valve to open, and the trigger switch at the bottom is used for cooperating with the lower portion of the floating plate to trigger the electric control valve to close.

[0007] In addition, it is particularly preferred that the vertical pipe has an opening at the top and a through groove is formed in the lower portion of the vertical pipe, so that the liquid level in the vertical pipe is flush with the liquid level in the eccentric recess.

[0008] In addition, it is particularly preferred that the bottom of the sliding groove is higher than the highest position of the through groove, so that when the electric control valve is closed, the recess at the top end of the liquid discharge pipe can form effective liquid sealing for the electric control valve.

[0009] In addition, it is particularly preferred that a transparent window is formed in one side of the liquid collecting tank.

[0010] In addition, it is particularly preferred that a waterproof layer is arranged on the inner surface of the eccentric recess.

[0011] Beneficial effects: the utility model discloses through trigger mechanism and electric control valve cooperation, realizes the automatic removal of hydrops, improves the efficiency and convenience of pipeline maintenance, and through the liquid seal design of electric control valve, can effectively prevent natural gas from leaking from the pipeline to the liquid collecting tank, also avoids the air in the liquid collecting tank into the natural gas pipeline, thereby maintains the quality of natural gas and the transportation efficiency of pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0013] Figure 2 It is the internal structure section view of the pipe body of the utility model.

[0014] Figure 3 It is the internal structure section view of the vertical pipe of the utility model.

[0015] Figure 4 It is the internal structure section view of the drain pipe of the utility model.

[0016] Among them, the above-mentioned drawing includes the following figure marks: 1-pipe body, 2-eccentric recess, 3-drain pipe, 301-recess, 4-electric control valve, 5-liquid collecting tank, 501-exhaust port, 6-vertical pipe, 601-slotted, 602-slotted, 7-trigger mechanism, 701-floater, 702-trigger switch, 8-transparent window. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of the utility model protection.

[0018] As Figures 1-4As shown, a natural gas pipeline liquid discharge device, including the pipe body 1, the pipe body 1 bottom fixed eccentric recess 2, the design of the eccentric recess 2 makes the liquid more easily concentrated here, facilitate subsequent removal, at the same time, the inner surface of the eccentric recess 2 is provided with waterproof layer (not shown in the figure), in order to prevent the liquid to the eccentric recess 2 caused by corrosion, the bottom of the eccentric recess 2 is fixed with the drain pipe 3, the top end of the drain pipe 3 has recess 301, the drain pipe 3 is installed with electric control valve 4, electric control valve 4 is used to control the liquid through the drain pipe 3 discharge, the bottom end of the drain pipe 3 is screwed with the liquid collecting tank 5, the upper part of the liquid collecting tank 5 is provided with exhaust port 501, in order to in the process of liquid accumulation, the air in the liquid collecting tank 5 is discharged to the outside, keep the internal pressure of the liquid collecting tank 5 balance, the inner bottom of the eccentric recess 2 is fixed with the vertical pipe 6, the vertical pipe 6 is provided with trigger mechanism 7 for triggering electric control valve 4, the top of the vertical pipe 6 has opening, the lower part of the vertical pipe 6 is provided with through slot 602, in order to ensure the liquid level in the vertical pipe 6 with the liquid level in the eccentric recess 2 flush, in the embodiment, the number of through slot 602 is two, and is symmetrically provided.

[0019] Trigger mechanism 7 includes floating plate 701 and trigger switch 702, one side of the vertical pipe 6 is provided with sliding slot 601, the floating plate 701 is slidably connected in the sliding slot 601, two trigger switches 702 are respectively installed in the top and bottom of the sliding slot 601, the top trigger switch 702 is used to cooperate with the upper part of the floating plate 701 to trigger the electric control valve 4 to open, the bottom trigger switch 702 is used to cooperate with the lower part of the floating plate 701 to trigger the electric control valve 4 to close, the bottom of the sliding slot 601 is higher than the highest part of the through slot 602, in order to ensure that when the electric control valve 4 is closed, the recess 301 at the top end of the drain pipe 3 can form effective liquid seal for the electric control valve 4.

[0020] The liquid collecting tank 5 is provided with transparent window 8 on one side, in order to observe the liquid accumulation in the liquid collecting tank 5.

[0021] Working principle: when using, the liquid formed in the pipe body 1 is concentrated in the eccentric recess 2, the liquid enters the vertical pipe 6 through the through slot 602, so that the liquid level in the vertical pipe 6 is flush with the liquid level in the eccentric recess 2, the floating plate 701 rises with the liquid level in the vertical pipe 6, until the top trigger switch 702 is contacted, so as to trigger the electric control valve 4 to open, and then the liquid in the eccentric recess 2 is discharged into the liquid collecting tank 5 through the electric control valve 4 and the drain pipe 3, the liquid collected in the liquid collecting tank 5 will discharge the air in the tank to the outside through the exhaust port 501 in the process of accumulation, in the process of liquid discharge, the liquid level in the eccentric recess 2 and the vertical pipe 6 is constantly declining, the floating plate 701 sinks, until the bottom trigger switch 702 is contacted, so as to trigger the electric control valve 4 to close, so that the liquid is not discharged, in the process, the recess 301 at the top end of the drain pipe 3 always has a certain amount of liquid, which keeps the effective liquid seal for the electric control valve 4, so as to effectively prevent natural gas leakage and external air into the pipe body 1.

[0022] The above merely describes the embodiments of the present application and is not intended to limit the present application. Any equivalent replacement made within the principles of the present application shall be included in the protection scope of the present application. The contents not described in detail in the present application are the existing technology known to the skilled in the art.

Claims

1. A natural gas pipeline liquid loading removal device characterized by: The utility model provides an automatic liquid drainage device, including the pipe body (1), the eccentric recess (2) is fixed in the bottom of pipe body (1), the drain pipe (3) is fixed in the bottom of eccentric recess (2), the top end of drain pipe (3) has recess (301), the electric control valve (4) is installed in drain pipe (3), the bottom end of drain pipe (3) is screwed with liquid collecting tank (5), the exhaust port (501) is opened in the upper portion one side of liquid collecting tank (5), the vertical pipe (6) is fixed in the inside bottom one side of eccentric recess (2), the trigger mechanism (7) for triggering electric control valve (4) is provided in vertical pipe (6).

2. A natural gas pipeline liquid loading removal device as defined in claim 1 wherein: The trigger mechanism (7) includes float plate (701) and trigger switch (702), the slide groove (601) is opened in the inside one side of vertical pipe (6), the float plate (701) is slidably connected in the slide groove (601), two trigger switches (702) are installed in the top and bottom of slide groove (601) respectively, the trigger switch (702) for cooperating with the upper portion of float plate (701) and triggering electric control valve (4) opening is opened in the top, the trigger switch (702) for cooperating with the lower portion of float plate (701) and triggering electric control valve (4) closing is closed in the bottom.

3. A natural gas pipeline liquid loading removal device as defined in claim 2 wherein: The vertical pipe (6) top has opening, the vertical pipe (6) lower portion is opened with the through slot (602), to ensure that the liquid level in the vertical pipe (6) is flush with the liquid level in the eccentric recess (2).

4. A natural gas pipeline liquid loading removal device as defined in claim 3 wherein: The bottom of slide groove (601) is higher than the highest point of through slot (602), to ensure that the recess (301) of drain pipe (3) top can form effective liquid seal to electric control valve (4) when electric control valve (4) is closed.

5. A natural gas pipeline liquid loading removal device as defined in claim 4 wherein: The transparent window (8) is opened in the one side of liquid collecting tank (5).

6. A natural gas pipeline liquid loading removal device as defined in claim 5 wherein: The inner surface of eccentric recess (2) is provided with waterproof layer.

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