Ground gathering and transportation pipeline connector with hydrate anti-blocking structure

Abstract

The utility model discloses a ground gathering and transportation pipeline connector with a hydrate anti-blocking structure, which belongs to the technical field of natural gas gathering and transportation pipelines and comprises a main frame, anti-blocking inner frames are arranged on the top surface and two ends of the main frame, a heat preservation cavity is arranged in the main frame, and each anti-blocking inner frame comprises a power box. One side of the power box is provided with a power interface, the bottom end of the power box is connected with a panel frame, and the interior of the panel frame is connected with an electric heating rod. According to the pipeline connector, the metal ring pieces are fixedly embedded into the inner walls of the two ends of the outer pipe frame, each set of metal ring pieces can be connected with the electrical bar through the top face connecting parts and can be matched with the electrical bar connected with the power box for heating, the metal ring pieces connected with the two ends of the electrical bar are heated, and therefore hydrates generated at the pipeline connecting positions due to low temperature are heated and melted; and an anti-freezing agent can be synchronously injected in cooperation with a spraying frame, so that thawing of the hydrate at the joint is completed at the maximum efficiency, dismounting is convenient, and follow-up treatment on the hydrate in the pipeline system is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural gas gathering pipeline technical field, concretely is a ground gathering pipeline connector with hydrate anti -blocking structure. BACKGROUND

[0002] Natural gas gathering pipeline refers to the oil and gas pipeline between the wellhead of oil well or gas well and the oil and gas field external handling station. Its main function is to collect and transport the untreated natural gas mined from the formation to the gas processing plant or starting point compressor station, and in the gathering pipeline, the formation conditions of hydrate include that there is liquid water or natural gas water vapor partial pressure close to saturation state in the pipeline, and the natural gas in the pipeline needs high enough pressure and low enough temperature, the main connection mode of the existing pipeline is through welding or flange fixing, once the hydrate is formed at the pipeline connection, it will be combined with the metal of the flange butt joint position firmly, the hydrate itself will reduce the flow area of the valve at the pipeline connection, cause throttling and further hydrate generation, and finally may cause the blockage of the pipeline, valve and equipment, seriously affect the safe operation of the pipeline.

[0003] In the above process, in view of the influence of hydrate existing in the inner wall of the pipeline, steam injection or adding antifreeze in advance is often used to handle, and the hydrate formed in the pipeline will also combine with the metal gap at the flange connection to cause influence, so that when the hydrate formed in the pipeline is handled and maintained, the flange connection is difficult to remove, thereby affecting the solution scheme of adding methanol and other antifreezes to decompose hydrate or steam heating, therefore, we propose a ground gathering pipeline connector with hydrate anti-blocking structure. Utility model content

[0004] The content part of the application is used to introduce the concept in a brief form, which will be described in detail in the specific embodiment part. The content part of the application is not intended to identify the key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0005] The utility model aims at providing a ground gathering pipeline connector with hydrate anti-blocking structure to solve the problems in the above background technology.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a ground-based gathering and transportation pipeline connector with a hydrate anti-clogging structure, comprising a main frame, an anti-clogging inner frame provided on the top surface and both ends of the main frame, and an insulation cavity provided inside the main frame, the anti-clogging inner frame including a power supply box, and a power interface provided on one side of the power supply box, a panel frame connected to the bottom end of the power supply box, an electric heating rod connected inside the panel frame, and metal rings connected to both ends of the electric heating rod, a spray frame attached to the inner wall of the metal rings, and spray nozzles provided on both sides of the spray frame, and a pump pipe connected to one side of the top end of the spray frame.

[0007] Furthermore, the metal ring is embedded along the inner walls of both ends of the main frame, and the metal ring is fixedly connected to the panel frame via a heating rod.

[0008] Furthermore, the power supply box is electrically connected to the heating rod, and the metal rings and spray racks are symmetrically distributed along both ends of the main frame.

[0009] Furthermore, the main frame includes an outer tube frame, the inner wall of which is provided with an insulation cavity, and a pressure gauge is embedded in one side of the top of the outer tube frame. Flange rings are connected to both ends of the outer tube frame, and a rubber ring is embedded in one side of the flange ring. An installation hole is opened inside the flange ring.

[0010] Furthermore, the flange ring is fixedly connected to both ends of the outer pipe support, and the mounting holes are circumferentially opened around the inside of the flange ring and the rubber ring.

[0011] Furthermore, the insulation cavity includes an air supply cavity, and the air supply cavity is surrounded by a cavity wall. The outer walls of the cavity wall are covered with a fiberglass layer, and the outer walls of the fiberglass layer are covered with an outer tube frame.

[0012] Furthermore, the fiberglass layer is fixedly connected to the cavity wall and the outer tube frame, and the fiberglass layer is evenly distributed along the gap between the cavity wall and the outer tube frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] The pipe connector has metal rings embedded and fixed on the inner walls of both ends of the outer pipe frame. Each set of metal rings can be connected to the heating rod through the top connecting part. Before disassembly, it can be heated with the heating rod connected to the power box to heat up the metal rings connected at both ends of the heating rod, thereby heating up and melting the hydrates generated at the pipe connection due to low temperature. It can also be used with the spray rack to inject antifreeze at the same time, thereby completing the thawing of the hydrates at the connection with the maximum efficiency, which facilitates disassembly and subsequent treatment of the hydrates in the pipeline system.

[0015] This pipe connector is used for docking through the flange rings at both ends of the outer pipe support. It docks with the pipeline system through the mounting holes opened on the flange rings at both ends and is fixed with bolts to maintain a stable docking. After docking, the airtightness is maintained by the rubber ring attached to one side of the flange ring, thereby maintaining the stability of the overall pipeline transmission process. During maintenance, the internal transmission pressure can also be controlled by the pressure gauge on the top of this connector, providing convenience and safety for inspection and maintenance.

[0016] This pipe connector connects to the gas supply system via the gas supply chamber, while the walls of the gas supply chamber are separated by a layer of laminated fiberglass to provide insulation within the connector pipe, thus preventing the formation of hydrates due to low internal temperatures and facilitating subsequent maintenance. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the anti-blocking inner frame of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the spray frame in the anti-clogging inner frame of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the insulation cavity of this utility model.

[0021] In the diagram: 1. Main frame; 101. Outer pipe rack; 102. Pressure gauge; 103. Flange ring; 104. Rubber ring; 105. Mounting hole; 2. Anti-clogging inner frame; 201. Power supply box; 202. Power interface; 203. Panel rack; 204. Heating rod; 205. Metal ring; 206. Spray rack; 207. Spray nozzle; 208. Pump pipe; 3. Insulation chamber; 301. Gas delivery chamber; 302. Chamber wall; 303. Fiberglass layer. Detailed Implementation

[0022] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0023] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0024] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0025] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0026] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] This utility model provides, for example Figures 1-4 The ground gathering and transportation pipeline connector with a hydrate anti-clogging structure shown includes a main frame 1, an anti-clogging inner frame 2 provided on the top surface and both ends of the main frame 1, and an insulation cavity 3 provided inside the main frame 1. The main frame 1 includes an outer pipe frame 101, the inner wall of the outer pipe frame 101 is provided with an insulation cavity 3, and a pressure gauge 102 is embedded on one side of the top of the outer pipe frame 101. Flange rings 103 are connected to both ends of the outer pipe frame 101, and a rubber ring 104 is embedded on one side of the flange ring 103. An installation hole 105 is opened inside the flange ring 103.

[0028] To ensure a tight and stable connection of the entire pipeline within the gathering and transportation pipeline system, such as Figure 1 As shown, this pipe connector is used for docking through the flange rings 103 at both ends of the outer pipe support 101. It docks with the pipeline system through the mounting holes 105 opened around the flange rings 103 at both ends, and is fixed with bolts to maintain a stable docking. After docking, the airtightness is maintained by the rubber ring 104 attached to one side of the flange ring 103, thereby maintaining the stability of the overall pipeline transmission process. During maintenance, the internal transmission pressure can also be controlled by the pressure gauge 102 on the top surface of this connector, providing convenience and safety for inspection and maintenance.

[0029] like Figures 2-3 As shown, the anti-blocking inner frame 2 includes a power supply box 201, and a power interface 202 is provided on one side of the power supply box 201. A panel frame 203 is connected to the bottom of the power supply box 201. An electric heating rod 204 is connected inside the panel frame 203. Metal rings 205 are connected to both ends of the electric heating rod 204. A spray frame 206 is attached to the inner wall of the metal ring 205. Spray nozzles 207 are opened on both sides of the spray frame 206. A pump pipe 208 is connected to one side of the top of the spray frame 206.

[0030] This connector is designed for easy disassembly and repair during pipe blockage and maintenance. Figures 2-3As shown, metal rings 205 are embedded and fixed in the inner walls of both ends of the outer pipe frame 101. Each set of metal rings 205 can be connected to the heating rod 204 through the top connecting part. Before disassembly, the heating rod 204 connected to the power supply box 201 can be used to heat the metal rings 205 connected to both ends of the heating rod 204, thereby heating up the hydrates generated at the pipe connection due to low temperature and melting them. Antifreeze can also be injected simultaneously with the spray frame 206 to maximize the efficiency of thawing the hydrates at the connection, facilitating disassembly and subsequent treatment of the hydrates in the pipeline system.

[0031] like Figure 4 As shown, the heat insulation cavity 3 includes an air supply cavity 301, and the air supply cavity 301 is surrounded by a cavity wall 302. The outer walls of the cavity wall 302 are attached with a fiberglass layer 303, and the outer walls of the fiberglass layer 303 are attached with an outer pipe rack 101.

[0032] Finally, to provide temperature stability at the pipe connections, such as Figure 4 As shown, this pipe connector connects to the pipe system via the air supply chamber 301, and the cavity walls 302 around the air supply chamber 301 are formed by the attached fiberglass layer 303 to provide a certain degree of insulation inside the connector pipe, thereby preventing the formation of hydrates at low internal temperatures and facilitating subsequent maintenance.

[0033] In summary, when using this pipe connector, firstly, the flange rings 103 at both ends of the outer pipe support 101 of the connector can be aligned with the flanges of the pipeline system, ensuring that the rubber ring 104 on one side of the flange ring 103 is tightly fitted. Then, bolts are inserted and tightened to secure the mating part of the flange ring 103. After the alignment is completed, during subsequent maintenance and disassembly, the operator can first observe the pressure gauge 102 to ensure that the pipeline system valves are closed. Then, the connected heating rod 204 is turned on through the control panel of the power box 201. After heating, the heating rod 204 transfers heat to the metal ring 205 for heat conduction. The metal ring 205 is located at the mating gap, providing localized heating to thaw the hydrates. Then, antifreeze can be injected through the pump pipe 208, allowing it to enter the spray frame 206 through the pump pipe 208 and spray onto the mating positions at both ends of the connector through the spray nozzles 207 of the ring cloth, thus dissolving the hydrates more quickly. It can also be injected in advance to reduce the formation of hydrates. Afterward, the user can disassemble the flange rings 103 at both ends normally.

[0034] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A ground-based gathering and transportation pipeline connector with a hydrate anti-clogging structure, comprising a main frame (1), characterized in that: The top surface and both ends of the main frame (1) are provided with anti-blocking inner frame (2), and the interior of the main frame (1) is provided with a heat insulation cavity (3). The anti-blocking inner frame (2) includes a power supply box (201), and a power interface (202) is provided on one side of the power supply box (201). The bottom end of the power supply box (201) is connected to a panel frame (203). The interior of the panel frame (203) is connected to an electric heating rod (204), and both ends of the electric heating rod (204) are connected to metal rings (205). The inner wall of the metal rings (205) is fitted with a spray frame (206), and spray nozzles (207) are opened on both sides of the spray frame (206). A pump pipe (208) is connected to one side of the top of the spray frame (206).

2. A ground-based gathering and transportation pipeline connector with a hydrate anti-clogging structure according to claim 1, characterized in that: The metal ring (205) is embedded along the inner walls of both ends of the main frame (1), and the metal ring (205) is fixedly connected to the panel frame (203) through the heating rod (204).

3. A ground-based gathering and transportation pipeline connector with a hydrate anti-clogging structure according to claim 1, characterized in that: The power supply box (201) is electrically connected to the heating rod (204), and the metal ring (205) and the spray rack (206) are symmetrically distributed along both ends of the main frame (1).

4. A ground-based gathering and transportation pipeline connector with a hydrate anti-clogging structure according to claim 1, characterized in that: The main frame (1) includes an outer tube frame (101), the inner wall of which is provided with a heat insulation cavity (3), and a pressure gauge (102) is embedded on one side of the top of the outer tube frame (101). Flange rings (103) are connected to both ends of the outer tube frame (101), and a rubber ring (104) is embedded on one side of the flange ring (103). An installation hole (105) is opened inside the flange ring (103).

5. A ground-based gathering and transportation pipeline connector with a hydrate anti-clogging structure according to claim 4, characterized in that: The flange ring (103) is fixedly connected to both ends of the outer pipe support (101), and the mounting hole (105) is opened in a ring around the inside of the flange ring (103) and the rubber ring (104).

6. A ground-based gathering and transportation pipeline connector with a hydrate anti-clogging structure according to claim 4, characterized in that: The heat insulation cavity (3) includes an air supply cavity (301), and the air supply cavity (301) is surrounded by a cavity wall (302). The outer walls of the cavity wall (302) are attached with a fiberglass layer (303), and the outer walls of the fiberglass layer (303) are attached with an outer tube frame (101).

7. A ground-based gathering and transportation pipeline connector with a hydrate anti-clogging structure according to claim 6, characterized in that: The fiberglass layer (303) is fixedly connected to the cavity wall (302) and the outer tube frame (101), and the fiberglass layer (303) is evenly distributed along the gap between the cavity wall (302) and the outer tube frame (101).

Images