Oil and gas pipeline winter blockage removal device

Abstract

The utility model discloses a kind of oil gas pipeline winter deplugging devices, it includes: water storage container, first pipeline is connected between it and flowback water collection tank, and circulating pump is provided on the first pipeline;Combustion boiler, second pipeline is connected between it and water storage container;Pipeline dredger, third pipeline is connected between it and combustion boiler;And high-pressure spray head, it is set in frozen pipe, and high-pressure steel wire rubber tube is connected with pipeline dredger, and the water injection end of frozen pipe is located directly above flowback water collection tank.The utility model device uses fuel oil boiler to provide stable and controllable temperature hot water as main deplugging medium, directly for frozen ice column heat conduction melting, effect is remarkable.

Description

Technical Field

[0001] This utility model specifically relates to the field of oil and water pipeline unblocking technology, and more specifically to an oil and gas pipeline unblocking device for winter. Background Technology

[0002] As the scale of effective fracturing in coalbed methane fields increases, the amount of flowback fluid from gas wells also increases. In winter, low temperatures make pipelines highly susceptible to freezing and blockage, especially in mountainous areas with numerous gullies. Laying gas and water collection pipelines is difficult in these areas; insufficient burial depth or inadequate insulation in low-lying or suspended locations prevents timely drainage of accumulated fluid, easily leading to freezing and blockage. Water expands by 9% when it freezes, which can cause localized blockages or ruptures in pipelines. In pipelines used to transport natural gas, saturated water in the gas is easily converted into condensate due to pressure and temperature variations. In low temperatures, this can cause ice blockage in gas transmission pipelines, preventing normal production at gas gathering stations and drainage wells.

[0003] Traditional methods for dealing with frozen pipelines in winter can generally be divided into the following two types:

[0004] 1. Take preventive measures: These include heating pipelines with electric heating tape, adding methanol to lower the freezing point, vacuuming between double-layer stainless steel pipes, and backflow in pipelines. Although these methods can alleviate the ice blockage of pipelines in winter to some extent, they are expensive and difficult to implement in mountainous and field areas.

[0005] 2. Take measures to unblock the blockage: such as pouring hot water on the pipeline, injecting hot water and steam into the pipeline, digging out the outside of the pipeline for heating, etc. Although these methods are simple and easy to implement, they are not very effective in unblocking the blockage, and the workload is large and the construction period is long. For pipelines buried deep underground, traditional methods are often ineffective. Utility Model Content

[0006] Therefore, this utility model proposes a winter unblocking device for oil and gas pipelines to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a winter unblocking device for oil and gas pipelines, comprising:

[0008] A water storage container is connected to a first pipeline, and a circulation pump is installed on the first pipeline.

[0009] A combustion boiler, which is connected to a water storage container by a second pipeline;

[0010] A pipe cleaner, which is connected to a third pipe in a combustion boiler;

[0011] And a high-pressure nozzle, which is installed inside the frozen pipe and connected to the pipe cleaner by a high-pressure steel wire hose, and the water injection end of the frozen pipe is located directly above the backflow collection tank.

[0012] The combustion boiler includes:

[0013] The furnace body has a flue pipe connected to one side;

[0014] The burner is fixed at the ignition port of the furnace body;

[0015] Heating tank, which is fixed to the furnace body;

[0016] A heating tube is installed inside a heating tank, with both ends of the heating tube passing through the side wall of the heating tank and extending out, and then connected to a second pipe and a third pipe respectively;

[0017] And a flow propulsion component, which is provided in multiples and evenly arranged at the bottom of the heating tank, so as to turn the heat flow at the bottom of the heating tank from bottom to top, thereby accelerating the heat transfer inside the heating tank.

[0018] Optionally, the middle part of the heating tube adopts a spiral structure, and a temperature gauge is installed on the end of the heating tube that connects to the third pipeline.

[0019] Optionally, a level gauge is installed on the heating tank, and an observation window is also provided on the side wall of the heating tank.

[0020] Optionally, the streaming component includes:

[0021] The base is fixed to the inner wall of the heating tank;

[0022] A primary spring-push assembly is inclined, with one end of the primary spring-push assembly fixed to the base and the other end of the primary spring-push assembly rotatably connected to the connecting handle.

[0023] The secondary spring-pushing assembly has one end fixedly connected to the connecting handle;

[0024] And the push plate, which has an arc structure and is rotatably connected to the other end of the secondary spring-push assembly.

[0025] Optionally, the primary thrust assembly and the secondary thrust assembly have the same structure, wherein the secondary thrust assembly includes:

[0026] The housing has a rotating shaft rotatably installed inside its top, with both ends of the rotating shaft extending outward and fixedly connected to the push plate;

[0027] A driven turntable is fixed on a rotating shaft, and a driven pressure handle is fixed on the side wall of the driven turntable;

[0028] An active turntable is rotatably mounted inside a housing. An active pressure handle is fixed on the side wall of the active turntable, and the active pressure handle can push the driven pressure handle.

[0029] And a driven bevel gear, which is fixed on the drive turntable, the driven bevel gear meshing with the drive bevel gear driven by a waterproof motor, and the waterproof motor is fixed inside the housing.

[0030] Optionally, a torsion spring is wound around the side wall of the rotating shaft, and the two ends of the torsion spring are respectively connected to the driven turntable and the housing.

[0031] Optionally, a filter is provided on the second pipeline.

[0032] Optionally, the pipe cleaner is equipped with a booster and a hose reel, wherein the booster is connected between the inlet and outlet of the pipe cleaner.

[0033] The hose reel is wound with a high-pressure steel wire hose that is connected to the water outlet, and a pressure gauge is installed on the high-pressure steel wire hose.

[0034] Optionally, a pressure regulating valve is provided at the outlet of the booster.

[0035] This utility model adopts the above technology and has the following beneficial effects compared with the existing technology:

[0036] This utility model device utilizes a fuel-fired boiler to provide stable and controllable hot water as the main unblocking medium, directly targeting the frozen ice columns for heat conduction and melting, with significant effect. Furthermore, the bottom of the fuel-fired boiler is equipped with a flow-pushing component, which mainly achieves large-angle swing through the coordinated action of the primary and secondary spring-push components and the connecting handle, driving the arc-shaped push plate to generate a strong upward flow, thereby eliminating the stagnant area at the bottom of the heating tank, increasing the heat transfer rate, and achieving a rapid heating effect. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of a winter unblocking device for oil and gas pipelines.

[0038] Figure 2 for Figure 1 Schematic diagram of the internal structure of a medium-combustion boiler;

[0039] Figure 3 for Figure 2 Schematic diagram of the structure of the mid-flow propulsion component;

[0040] Figure 4 for Figure 3 Schematic diagram of the internal structure of the secondary spring-thrust assembly;

[0041] Figure 5 for Figure 1 A schematic diagram of the internal structure of a pipe cleaner.

[0042] In the diagram: 1. Water storage container; 2. Filter; 3. Combustion boiler; 4. Pipe cleaner; 5. High-pressure steel wire hose; 6. High-pressure nozzle; 7. Frozen pipe; 8. Backflow collection tank; 9. Circulation pump; 301. Thermometer; 302. Heating tank; 303. Heating tube; 304. Level gauge; 305. Burner; 306. Furnace body; 307. Exhaust pipe; 308. Base; 309. Connecting handle; 310. Push plate; 311. Secondary spring-push assembly; 312. Active turntable; 313. Waterproof motor; 314. Active pressure handle; 315. Driven pressure handle; 316. Torsion spring; 317. Driven turntable; 401. Pressure gauge; 402. Hose reel; 403. Pressure regulating valve; 404. Booster; 405. Inlet; 406. Outlet; 407. Start button. Detailed Implementation

[0043] With reference to the accompanying drawings of the embodiments of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below.

[0044] Example: Please refer to the appendix. Figure 1-5 This utility model provides a technical solution: a device for unblocking oil and gas pipelines in winter, comprising:

[0045] A water storage container 1 is connected to a first pipeline between itself and a backflow collection tank 8, and a circulation pump 9 is installed on the first pipeline;

[0046] The combustion boiler 3 is connected to the water storage container 1 by a second pipeline;

[0047] Pipe cleaner 4, which is connected to the combustion boiler 3 by a third pipe;

[0048] And a high-pressure nozzle 6, which is installed inside the frozen pipe 7 and connected to the pipe cleaner 4 by a high-pressure steel wire hose 5, and the water injection end of the frozen pipe 7 is located directly above the backflow collection tank 8.

[0049] It should be noted that the backflow after unblocking is collected in the backflow collection tank and then re-injected into the water storage container by the circulation pump, serving as the boiler water source, which greatly reduces water consumption and heating energy consumption.

[0050] Among them, the combustion boiler 3 includes:

[0051] Furnace body 306, with a flue pipe 307 connected to one side;

[0052] Burner 305, which is fixed at the ignition port of furnace body 306;

[0053] Heating tank 302 is fixed on furnace body 306. The temperature inside heating tank 302 is maintained at 50~70℃. The top of heating tank 302 is provided with a vent hole to prevent the accumulation of toxic, flammable and explosive gases.

[0054] Heating tube 303 is disposed inside heating tank 302, and both ends of heating tube 303 pass through the side wall of heating tank 302 and extend out, and are then connected to the second pipe and the third pipe respectively;

[0055] And a flow propulsion component, which is provided in multiples and evenly arranged at the bottom of the heating tank 302, so as to turn the heat flow at the bottom of the heating tank 302 from bottom to top, thereby accelerating the heat transfer inside the heating tank 302.

[0056] In this embodiment, the middle part of the heating tube 303 adopts a spiral structure, which greatly increases the heating area. A temperature gauge 301 is installed on one end of the heating tube 303 that is connected to the third pipeline. That is, the outlet temperature gauge monitors the water temperature in real time. Combined with the burner power adjustment, it avoids overheating damage to the pipeline or energy waste.

[0057] In this embodiment, a level gauge 304 is installed on the heating tank 302, and an observation window is also provided on the side wall of the heating tank 302.

[0058] In this embodiment, the streaming component includes:

[0059] The base 308 is fixed to the inner wall of the heating tank 302;

[0060] The first-stage spring-push assembly is inclined, with one end of the first-stage spring-push assembly fixed to the base 308, and the other end of the first-stage spring-push assembly rotatably connected to the connecting handle 309.

[0061] The secondary spring-pushing assembly 311 has one end fixedly connected to the connecting handle 309;

[0062] And push plate 310, which adopts an arc-shaped structure and is rotatably connected to the other end of the secondary spring push assembly 311;

[0063] It should be noted that the primary and secondary spring-push components work together through the connecting handle to achieve large-angle swing, driving the arc-shaped push plate to generate a strong upward flow. Furthermore, the secondary spring-push component performs the spring-push operation only after the primary spring-push component has completed its spring-push operation.

[0064] The push mechanism is specifically designed to use a waterproof motor to drive a bevel gear, which in turn drives the active pressure handle on the active turntable to push the driven pressure handle. When the two derail, a torsion spring ensures that the push plate quickly returns to its original position, thereby creating a high-frequency reciprocating motion to eliminate the stagnant area at the bottom of the heating tank.

[0065] In this embodiment, the primary spring-thrust assembly and the secondary spring-thrust assembly 311 have the same structure, wherein the secondary spring-thrust assembly 311 includes:

[0066] The housing has a rotating shaft rotatably installed inside its top, with both ends of the shaft extending outwards and fixedly connected to the push plate 310.

[0067] The driven turntable 317 is fixed on the rotating shaft, and the driven pressure handle 315 is fixed on the side wall of the driven turntable 317;

[0068] The active turntable 312 is rotatably installed inside the housing. An active pressure handle 314 is fixed on the side wall of the active turntable 312. The active pressure handle 314 can push the driven pressure handle 315.

[0069] And a driven bevel gear, which is fixed on the drive turntable 312. The driven bevel gear meshes with the drive bevel gear driven by the waterproof motor 313, and the waterproof motor 313 is fixed inside the housing.

[0070] In this embodiment, a torsion spring 316 is wound around the side wall of the rotating shaft, and the two ends of the torsion spring 316 are respectively connected to the driven turntable 317 and the housing.

[0071] In this embodiment, a filter 2 is installed on the second pipeline.

[0072] In this embodiment, the pipe cleaner 4 is equipped with a start button 407, and the pipe cleaner 4 is equipped with a booster 404 and a hose reel 402. The booster 404 is connected between the inlet 405 and the outlet 406 of the pipe cleaner 4.

[0073] A high-pressure steel wire hose 5, which is connected to the water outlet 406, is wound on the hose reel 402, and a pressure gauge 401 is installed on the high-pressure steel wire hose 5.

[0074] In this embodiment, a pressure regulating valve 403 is provided at the outlet of the booster 404. The maximum working pressure of the booster 404 is 16MPa. The booster, in conjunction with the pressure regulating valve, can adjust the jet pressure in real time according to the degree of freezing blockage.

[0075] In practice, the water storage container and the hot water boiler are connected in series with a flexible hose. Start the hot water boiler and check the pipe cleaner when the boiler water temperature reaches 50℃~70℃.

[0076] Connect the high-pressure nozzle to the high-pressure steel wire hose, insert it into the pipe opening of the frozen and blocked pipe to be thawed, start the pipe unblocking device, and use the self-priming function of the booster to pressurize the boiler water to the required unblocking pressure of 10-16MPa.

[0077] Observe the defrosting speed of the high-pressure nozzle entering the defrosting pipeline and adjust the working pressure of the booster in a timely manner.

[0078] The thawed return water is collected in the return water collection tank and then pumped to a water tank using a circulating water pump, so as to realize the recycling of the thawed water and thus realize the thawing operation of frozen and blocked pipes.

[0079] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for unblocking oil and gas pipelines in winter, characterized in that, It includes: A water storage container (1) is connected to a first pipeline between itself and a backflow collection tank (8), and a circulation pump (9) is installed on the first pipeline. A combustion boiler (3) is connected to a water storage container (1) by a second pipeline; Pipe cleaner (4), which is connected to a third pipeline between itself and the combustion boiler (3); And a high-pressure nozzle (6), which is installed in the frozen pipe (7) and connected to the pipe cleaner (4) by a high-pressure steel wire hose (5), and the water injection end of the frozen pipe (7) is located directly above the backflow collection tank (8); The combustion boiler (3) includes: The furnace body (306) has a flue pipe (307) connected to one side. The burner (305) is fixed at the ignition port of the furnace body (306); Heating tank (302), which is fixed on furnace body (306); A heating tube (303) is disposed inside a heating tank (302), and both ends of the heating tube (303) pass through the side wall of the heating tank (302) and extend out, and are then connected to a second pipeline and a third pipeline respectively; And a flow propulsion component, which is provided in multiples and evenly arranged at the bottom of the heating tank (302) to turn the heat flow at the bottom of the heating tank (302) up from bottom to top, thereby accelerating the heat propagation in the heating tank (302).

2. The oil and gas pipeline winter unblocking device according to claim 1, characterized in that: The heating tube (303) has a spiral structure in the middle, and a thermometer (301) is installed on the end of the heating tube (303) that is connected to the third pipeline.

3. The oil and gas pipeline winter unblocking device according to claim 1, characterized in that: A level gauge (304) is installed on the heating tank (302), and an observation window is also provided on the side wall of the heating tank (302).

4. The winter unblocking device for oil and gas pipelines according to claim 1, characterized in that: The streaming component includes: The base (308) is fixed to the inner wall of the heating tank (302); A primary spring-push assembly is inclined, and one end of the primary spring-push assembly is fixed on the base (308), while the other end of the primary spring-push assembly is rotatably connected to the connecting handle (309). The secondary spring-push assembly (311) has one end fixedly connected to the connecting handle (309); And a push plate (310), which has an arc-shaped structure and is rotatably connected to the other end of the secondary spring-push assembly (311).

5. The winter unblocking device for oil and gas pipelines according to claim 4, characterized in that: The primary thrust assembly and the secondary thrust assembly (311) have the same structure, wherein the secondary thrust assembly (311) includes: The housing has a rotating shaft rotatably installed inside its top, with both ends of the rotating shaft extending outward and fixedly connected to the push plate (310); A driven turntable (317) is fixed on a rotating shaft, and a driven pressure handle (315) is fixed on the side wall of the driven turntable (317). An active turntable (312) is rotatably mounted inside a housing. An active pressure handle (314) is fixed on the side wall of the active turntable (312). The active pressure handle (314) can push the driven pressure handle (315). And a driven bevel gear, which is fixed on the drive turntable (312), the driven bevel gear meshing with the drive bevel gear driven by a waterproof motor (313), and the waterproof motor (313) is fixed inside the housing.

6. The oil and gas pipeline winter unblocking device according to claim 5, characterized in that: A torsion spring (316) is wound around the side wall of the shaft, and the two ends of the torsion spring (316) are respectively connected to the driven turntable (317) and the housing.

7. The winter unblocking device for oil and gas pipelines according to claim 1, characterized in that: A filter (2) is installed on the second pipeline.

8. The winter unblocking device for oil and gas pipelines according to claim 1, characterized in that: The pipe cleaner (4) is equipped with a booster (404) and a hose reel (402), wherein the booster (404) is connected between the inlet (405) and the outlet (406) of the pipe cleaner (4); The hose reel (402) is wound with a high-pressure steel wire hose (5) that is connected to the water outlet (406), and a pressure gauge (401) is installed on the high-pressure steel wire hose (5).

9. The winter unblocking device for oil and gas pipelines according to claim 8, characterized in that: A pressure regulating valve (403) is provided at the outlet of the booster (404).

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