A heating and antifreeze device for oil wellhead pipelines

Abstract

This utility model discloses a heating and antifreeze device for oil wellhead pipelines, including a covering component and a pipeline body. A sealing gasket is installed at the lower end of the covering component, and the pipeline body is installed inside the covering component. An upper fixing clamp is provided at the upper end of the covering component, and a lower fixing clamp is installed around the sealing gasket. The lower fixing clamp and the sealing gasket are stitched together. Compared with existing heating and antifreeze devices, this heating and antifreeze device for oil wellhead pipelines wraps the covering component around the pipeline body. After closing it into a cylindrical shape with a sealing zipper, the upper and lower fixing clamps are used to fix the sealing gaskets on the upper and lower sides of the covering component to close the opening and prevent air leakage. Air is first blown into the covering component to fill it, and then the device switches to an internal circulation mode, using a circulation hose to achieve hot air circulation heating. The puncture-resistant layer, airbag layer, heat-reflective layer, and insulation layer of the covering component together constitute a multi-layered protective system, significantly improving the overall heat insulation effect.

Description

Technical Field

[0001] This utility model relates to the field of oil wellhead pipeline technology, specifically to an oil wellhead pipeline heating and antifreeze device. Background Technology

[0002] Oil production engineering is a general term for various engineering and technical measures taken by production wells and injection wells to improve oil reservoirs according to development goals during oilfield development. As a comprehensive applied discipline, it studies the theories, engineering design methods, and implementation technologies of various engineering and technical measures that can economically and effectively act on oil reservoirs to improve oil well production and crude oil recovery rate. In current oil production work, due to the low temperature in some areas, the wellhead pipeline may freeze, which greatly affects the operation of oil production personnel. Furthermore, the freezing of the wellhead pipeline may also render the entire pipeline inoperable, greatly increasing the operating costs.

[0003] The existing patent, CN219808984U, entitled "A Heating and Antifreezing Device for Oil Wellhead Pipelines," relates to the field of oil production technology. Specifically, it describes a heating and antifreezing device for oil wellhead pipelines, comprising a pipeline. The device is characterized by: an arc-shaped sleeve plate slidably connected to the outer surface of the pipeline near its top; first connecting frames on both sides of the rear surface of the arc-shaped sleeve plate; second connecting frames at the ends of the first connecting frames away from the arc-shaped sleeve plate; a support plate at the bottom of the second connecting frames; a heating box on the top surface of the support plate; a damage-resistant plate at the front end of the heating box; and multiple sets of heat-flow grooves on the surface of the damage-resistant plate. This invention, through the arc-shaped sleeve plate, the first and second clamping plates, the first bolts and nuts on the first and second clamping plates, and the heat-flow grooves on the heating box, the damage-resistant plate, and the damage-resistant plate, allows the device to be easily moved up and down to the desired working position for heating, with uniform heat distribution, greatly improving work efficiency.

[0004] The aforementioned device, through the arc-shaped sleeve plate, the first clamping plate and the second clamping plate, the first bolts and nuts on the first and second clamping plates, the heating box and the anti-damage plate, and the heat flow grooves opened on the surface of the anti-damage plate, allows the device to be easily moved up and down to the required working position for heating. However, heating the device in an open area will cause a large amount of heat to dissipate, resulting in resource waste and low efficiency, which cannot well meet people's usage needs. In view of the above situation, technical innovation is carried out on the basis of existing heating and antifreeze equipment. Utility Model Content

[0005] The purpose of this invention is to provide a heating and antifreeze device for oil wellhead pipelines to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a heating and antifreeze device for oil wellhead pipelines, comprising a covering component and a pipeline body. A sealing gasket is installed at the lower end of the covering component, and the pipeline body is installed inside the covering component. An upper fixing hoop is provided at the upper end of the covering component, and a lower fixing hoop is installed around the sealing gasket. The lower fixing hoop and the sealing gasket are stitched together. The upper fixing hoop and the lower fixing hoop are fixed to the sealing gaskets on the upper and lower sides of the covering component. While fixing the covering component, the upper and lower openings are closed to prevent air leakage.

[0007] Furthermore, a sealing zipper is installed on the side of the covering component, and the sealing zipper is sewn to the covering component. The sealing zipper closes the covering component into a cylindrical shape, which covers the pipe body.

[0008] Furthermore, the covering component includes a puncture-resistant layer and an airbag layer, and an airbag layer is installed on the inner side of the puncture-resistant layer. The puncture-resistant layer prevents the covering component from being punctured, and the airbag layer effectively isolates the internal and external temperatures.

[0009] Furthermore, the covering assembly also includes a heat-reflective layer and a heat-insulating layer. The heat-reflective layer is installed on the inner side of the airbag layer, and the heat-reflective layer is installed on the inner side of the heat-reflective layer. The heat-reflective layer reflects most of the heat back to the pipe body, and the heat-insulating layer reduces the heat loss inside the covering assembly.

[0010] Furthermore, a hot air blower is installed on the right side of the lower fixing hoop, and the hot air blower is welded to the lower fixing hoop. The hot air blower is connected and fixed to the lower fixing hoop. The lower end of the hot air blower is an external air inlet, and the left side is an internal air inlet of the covering component. The hot air blower can draw in external air through the air inlet and blow it out, and can also draw in air through the internal air inlet of the covering component and return it to the covering component through the circulation hose. The air will be reheated when it passes through the hot air blower.

[0011] Furthermore, the upper end of the hot air blower is connected to a circulating hose, and the circulating hose is embedded in the hot air blower. The hot air blown out circulates and is heated continuously in the encapsulated component through the circulating hose.

[0012] Furthermore, a shaping ring is installed inside the side wall of the circulation hose, and the shaping ring is embedded in the circulation hose. The shaping ring ensures smooth airflow inside the circulation hose and prevents blockage.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The covering component is wrapped around the pipe body and closed into a cylindrical shape by a sealing zipper. Upper and lower fixing clamps are then used to fix the sealing gaskets on the upper and lower sides of the covering component to close the opening and prevent air leakage. A hot air blower is connected to the lower fixing clamp, first blowing air into the covering component to fill it, and then switching to internal circulation mode to achieve hot air circulation heating through a circulation hose. The puncture-resistant layer, airbag layer, heat-reflective layer, and insulation layer of the covering component together constitute a multi-layered protective system, respectively playing the roles of puncture resistance, heat insulation, heat reflection, and heat preservation, significantly improving the overall heat insulation effect, while the shaping ring ensures unobstructed airflow within the circulation hose. 1. This utility model unfolds and wraps the covering component along the axial direction of the pipe body. After adjusting it to completely cover the target area, the covering component is closed into a tight cylindrical shape by the serrated engagement structure of the sealing zipper, ensuring that it fits tightly against the surface of the pipe body. Then, the upper and lower fixing clamps are aligned with the thickened sealing pads at the top and bottom of the covering component, respectively. Uniform pressure is applied by the bolt tightening device, so that the arc-shaped inner lining of the fixing clamp completely presses against the pad, forming a double sealing structure. This design can fix the position of the covering component through the tension of the clamp and close the gap between the upper and lower openings by utilizing the elastic deformation of the pad, effectively blocking the airflow leakage path. Finally, the air outlet flange of the hot air blower is connected to the pre-set quick interface of the lower fixing clamp, and the connection is completed by rotating the buckle. The entire installation process can achieve efficient sealing and equipment integration without additional tools. 2. This utility model uses a hot air blower to continuously pump external air into the encapsulated component. As the air pressure gradually increases, the encapsulated component, supported by the puncture-resistant layer, evenly inflates, forming a stable heating chamber structure. Once the preset pressure value is reached, the hot air blower automatically closes the air inlet and switches to internal circulation mode. At this time, the high-temperature airflow forms a closed circulation system inside the encapsulated component through a high-temperature resistant circulation hose. Combined with the guide structure of the shaping ring, this ensures unobstructed airflow, preventing localized temperature buildup or airflow blockage. Throughout the heating process, the multi-layered composite structure works synergistically: the puncture-resistant layer uses a high-strength fiber woven mesh to effectively resist punctures from sharp objects; the airbag layer forms a thermal barrier through the cavity; the heat-reflective layer contains an aluminum foil film that directionally reflects over 90% of the radiant heat back to the pipe body surface; and the insulation layer uses ceramic fiber material to minimize heat loss. This three-dimensional thermal management design allows the encapsulated component to maintain a stable heating temperature and achieve efficient energy utilization during continuous thermal circulation, ultimately resulting in uniform and sustained heat transfer to the pipe body. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a heating and antifreeze device for oil wellhead pipelines according to the present invention; Figure 2This is a three-dimensional cross-sectional view of the circulating hose of an oil wellhead pipeline heating and antifreeze device according to the present invention; Figure 3 This is a three-dimensional cross-sectional view of the covering component of an oil wellhead pipeline heating and antifreeze device according to the present invention.

[0015] In the diagram: 1. Covering component; 101. Puncture-resistant layer; 102. Airbag layer; 103. Heat-reflective layer; 104. Insulation layer; 2. Sealing pad; 3. Lower fixing clamp; 4. Upper fixing clamp; 5. Sealing zipper; 6. Hot air blower; 7. Circulation hose; 8. Shaping ring; 9. Pipe body. Detailed Implementation

[0016] like Figure 1 As shown, an oil wellhead pipeline heating and antifreeze device includes a covering component 1 and a pipeline body 9. A sealing gasket 2 is installed at the lower end of the covering component 1. The pipeline body 9 is installed inside the covering component 1, and an upper fixing clamp 4 is provided at the upper end of the covering component 1. A lower fixing clamp 3 is installed around the sealing gasket 2, and the lower fixing clamp 3 is sewn to the sealing gasket 2. A sealing zipper 5 is installed on the side of the covering component 1, and the sealing zipper 5 is sewn to the covering component 1. A hot air blower 6 is installed on the right side of the lower fixing clamp 3, and the hot air blower 6 is welded to the lower fixing clamp 3. After the covering component 1 is wrapped around the pipeline body 9, it is closed into a cylindrical shape by the sealing zipper 5, ensuring that the pipeline body 9 is completely covered. Then, the upper fixing clamp 4 and the lower fixing clamp 3 are respectively fixed to the sealing gasket 2 on the upper and lower sides of the covering component 1, achieving both a stable fixation of the covering component 1 and effectively closing the upper and lower openings to prevent air leakage. The hot air blower 6 is connected and fixed through the lower fixing clamp 3, simplifying the installation process.

[0017] like Figure 2 and Figure 3 As shown, the covering component 1 includes a puncture-resistant layer 101 and an airbag layer 102, and the airbag layer 102 is installed inside the puncture-resistant layer 101. The covering component 1 also includes a heat-reflective layer 103 and a heat-insulating layer 104. The heat-reflective layer 103 is installed inside the airbag layer 102, and the heat-insulating layer 104 is installed inside the heat-reflective layer 103. The upper end of the hot air blower 6 is connected to a circulation hose 7, and the circulation hose 7 is embedded in the hot air blower 6. A shaping ring 8 is installed inside the side wall of the circulation hose 7, and the shaping ring 8 is embedded in the circulation hose 7. The hot air blower 6 first blows external air into the covering component 1. After it is fully filled, it switches to the internal circulation mode, and the hot air is continuously circulated and heated through the circulation hose 7. The covering component 1 adopts a multi-layer composite structure: the puncture-resistant layer 101 enhances puncture resistance, the airbag layer 102 forms an effective heat insulation barrier, the heat-reflective layer 103 concentrates and reflects heat energy to the pipe body 9, and together with the insulation layer 104, significantly reduces heat loss. The shaping ring 8 ensures unobstructed airflow within the circulating hose 7.

[0018] Working Principle: When using this oil wellhead pipeline heating and antifreeze device, firstly, the covering component 1 is tightly wrapped around the surface of the pipeline body 9, and then quickly closed into a complete cylindrical structure using the sealing zipper 5, ensuring complete contact with the pipeline body 9. Subsequently, the upper fixing clamp 4 and the lower fixing clamp 3 are securely fixed to the sealing gaskets 2 at the upper and lower ends of the covering component 1, respectively. This operation not only achieves stable fixation of the covering component 1 but also simultaneously seals the upper and lower openings, effectively preventing hot air leakage. The hot air blower 6 is conveniently connected via the lower fixing clamp 3. After starting, it first continuously blows external air into the covering component 1. Once it is fully inflated, it automatically switches to internal circulation mode. At this time, the hot air blower 6 closes its air inlet, and the hot air continuously circulates inside the covering component 1 through the circulation hose 7, ensuring a uniform and stable heating effect. The covering component 1 adopts a four-layer composite structure: the puncture-resistant layer 101 provides basic protection against punctures by external sharp objects; the airbag layer 102 forms a highly efficient heat insulation barrier; the heat-reflective layer 103 concentrates and reflects heat energy back to the surface of the pipe body 9; and the insulation layer 104 minimizes internal heat loss. The unique design of the shaping ring 8 effectively maintains the unobstructed flow of the internal channels of the circulating hose 7, preventing airflow obstruction and thus ensuring the efficient and stable operation of the entire heating system.

Claims

1. An oil production wellhead pipe heating anti-freezing device comprising a cladding assembly (1) and a pipe body (9), characterized in that, The lower end of the covering component (1) is equipped with a sealing pad (2), the pipe body (9) is installed inside the covering component (1), and the upper end of the covering component (1) is provided with an upper fixing hoop (4). The outer periphery of the sealing pad (2) is equipped with a lower fixing hoop (3), and the lower fixing hoop (3) and the sealing pad (2) are stitched together.

2. The freeze protection apparatus for heating a wellhead conduit of an oil production well of claim 1, wherein, The side of the covering component (1) is fitted with a sealing zipper (5), and the sealing zipper (5) and the covering component (1) are stitched together.

3. The freeze protection apparatus for oil wellhead piping as claimed in claim 1, wherein, The covering component (1) includes a puncture-resistant layer (101) and an airbag layer (102), and the airbag layer (102) is installed on the inner side of the puncture-resistant layer (101).

4. The oil wellhead pipeline heating and antifreeze device according to claim 3, characterized in that, The covering component (1) further includes a heat reflective layer (103) and a heat insulation layer (104). The heat reflective layer (103) is installed on the inner side of the airbag layer (102), and the heat insulation layer (104) is installed on the inner side of the heat reflective layer (103).

5. The freeze protection apparatus for heating a wellhead conduit of an oil production well of claim 1, wherein, A hot air blower (6) is installed on the right side of the lower fixing hoop (3), and the hot air blower (6) and the lower fixing hoop (3) are welded together.

6. An oil wellhead pipe freeze protection apparatus as defined in claim 5, wherein, The upper end of the hot air blower (6) is connected to a circulation hose (7), and the circulation hose (7) and the hot air blower (6) are embedded in each other.

7. The oil wellhead pipeline heating and antifreeze device according to claim 6, characterized in that, A shaping ring (8) is installed inside the side wall of the circulation hose (7), and the shaping ring (8) and the circulation hose (7) are embedded in each other.

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