Product oil pipeline fire connecting head construction component

Abstract

The utility model discloses a product oil pipeline fire connecting head construction component which comprises an air bag embedded and plugged in a pipe body, a non-high-temperature-melting plugging body is arranged on one side of the air bag, and a positioning component connected with the plugging body is arranged on the outer side of the plugging body. The plugging body is a granular body filled in the pipe body, the outer side of the filled granular body is of a slope surface structure, and the positioning component is a positioning plug embedded in the pipe body and attached to the slope surface structure of the granular body. The plugging body can effectively solve the problem that at present, butter is melted at high temperature and chemically reacts with finished oil, and the problem that residues formed on a butter wall influence the quality of the finished oil and potential safety hazards existing in the reconstruction construction process are solved after the fire connecting head is plugged. And the plugging position of the plugging body is guaranteed through the positioning component, the problem that the plugging effect is reduced after the plugging body moves is solved, and the safety of construction operation is guaranteed.

Description

Technical Field

[0001] This application relates to the technical field of hot tapping connection construction for refined oil pipelines, and particularly to a construction component for hot tapping connection of refined oil pipelines. Background Art

[0002] The hot tapping connection construction of new and old pipelines of oil storage tanks mainly involves modifying the pipelines of oil storage tanks, such as adding or extending pipelines, etc. Since the oil storage tanks have usually been in use before modification and their pipelines have been used for oil transportation, when carrying out pipeline reconstruction, the residual oil in the pipelines has a great safety impact on pipeline welding. Currently, the hot tapping connection construction of new and old pipelines of large oil storage tanks has high safety requirements, and how to do a good job in plugging and isolation is a very important link.

[0003] The currently commonly used plugging method is to use an airbag plus a butter wall for plugging. After the temperature rises during the high-temperature environment, the butter wall is likely to melt, reducing the plugging effect. The airbag will also move due to temperature changes, forming the disadvantages and deficiencies of unstable operation. The refined oil residue contains carbon monoxide, hydrogen sulfide, etc., resulting in differences in safety guarantee during the hot tapping connection process. When injecting refined oil into the pipeline to discharge the butter wall from the pipeline after construction is completed, some butter may remain in the pipeline. The butter will chemically react with the refined oil, thus affecting the quality of the refined oil. Therefore, using the traditional butter wall plugging is unstable in a high-temperature environment and poses a greater safety risk. Summary of the Invention

[0004] In view of the above problems, this application aims to provide a construction component for hot tapping connection of refined oil pipelines. Through the plugging body, the problem that butter currently melts at high temperatures and chemically reacts with refined oil can be effectively solved, and the quality of refined oil caused by the formation of residues after plugging and isolation during hot tapping connection and the potential safety hazards during the reconstruction construction process can be eliminated.

[0005] To achieve the above object, the technical solution adopted in this application is as follows: A construction component for hot tapping connection of refined oil pipelines includes an airbag embedded and plugged in a pipe body, and is characterized in that: on one side of the airbag, there is a non-high-temperature melting plugging body, and on the outer side of the plugging body, there is a positioning component connected thereto.

[0006] Preferably, the plugging body is a granular body filled in the pipe body, and the outer side of the filled granular body is a slope structure.

[0007] Preferably, the positioning component is a positioning plug head embedded in the pipe body and attached to the inclined surface structure of the granular body.

[0008] Preferably, the positioning plug head is divided into a plurality of single-body parts with a fan-shaped structure, and a disassembly hole is provided on the outer end surface of each single-body part.

[0009] Preferably, a conical hole communicating with each monomer part is formed in the center of the positioning plug, and an expansion rod is inserted into the conical hole.

[0010] The beneficial effects of the present application are as follows: the plugging body can effectively solve the problem that the current butter melts at high temperature and reacts chemically with the refined oil, and solve the problems of the quality of the refined oil caused by the formation of residues after the butter wall is eliminated after the hot work connection plugging and the potential safety hazards existing in the reconstruction construction process. And the positioning member ensures the plugging position of the plugging body, solves the problem that the plugging effect decreases due to its displacement, and ensures the safety of the construction operation. Description of the Drawings

[0011] Figure 1 It is a schematic diagram of the process of filling the airbag and granular body of the present application into the pipeline.

[0012] Figure 2 It is a schematic diagram showing that the top of the granular body is easily dispersed and collapsed under the influence of external force after being filled in the present application.

[0013] Figure 3 It is a schematic diagram of shaping and positioning the granular body by embedding the positioning plug into the pipeline in the present application.

[0014] Figure 4 It is a schematic diagram of the side view of the positioning plug and its sequential insertion into the pipeline in the present application.

[0015] Figure 5 It is a schematic diagram of removing the positioning plugs one by one in the present application.

[0016] Figure 6 It is a schematic diagram of the structure of the conical hole formed in the positioning plug in the present application.

[0017] Figure 7 It is a schematic diagram of pressing and sealing the monomer part of the positioning plug against the inner wall of the pipeline by the expansion rod in the present application.

[0018] Figure 8 It is a schematic diagram of discharging the granular body and the airbag after the construction is completed in the present application.

[0019] In the figure: 5 - pipeline; 6 - extraction rod. Detailed Embodiments

[0020] In order to enable those of ordinary skill in the art to better understand the technical solutions of the present application, the technical solutions of the present application will be further described below with reference to the drawings and embodiments.

[0021] Refer to the attached Figures 1 to 8The hot-fire joint construction component of a refined oil pipeline shown in the figure includes an air bag 1 embedded in the pipe body to solve the problem that the current butter plugging construction has a chemical reaction with the refined oil and affects the quality of the refined oil, and there is a greater safety risk in the high temperature environment of the pipeline reconstruction, such as Figure 1 As shown, a non-high temperature melting plugging body is provided on one side of the airbag 1, which can effectively solve the current problem of butter melting at high temperature and chemically reacting with finished oil, as well as the potential safety hazards in the reconstruction construction process.

[0022] In order to avoid the problem of affecting the plugging effect due to the displacement of the plugging body, Figure 3 As shown, a positioning component connected to the blocking body is provided on the outside of the blocking body, and the blocking position of the blocking body is ensured by the positioning component, so as to solve the problem of reduced blocking effect after displacement and ensure the safety of construction work.

[0023] Specifically, Figure 1 As shown, the plugging body is a granular body 2 filled in the pipe body, preferably a medium-coarse granular industrial salt, which will not melt during high-temperature construction, thereby avoiding the problem of mixing and reacting with the finished oil to affect the quality of the oil product. Since the granular body 2 is filled in the pipeline, in order to avoid the problem of dispersion (collapse) under the influence of external construction force after filling and affecting the plugging effect, as shown in FIG. Figure 1 As shown, the outer side of the filled granules is a slope structure. The slope structure can effectively prevent the dispersion and collapse at the outer top of the filled granules 2.

[0024] In order to further avoid the problem of external forces affecting the dispersion and collapse of the particles 2 during pipeline construction, specifically, Figure 3 As shown, the positioning member is a positioning plug 3 embedded in the pipe body and in contact with the inclined surface structure of the granule 2. After the granule 2 is filled, the positioning plug 3 is inserted into the pipe and in contact with the slope of the granule 2, thereby effectively limiting the problem of the granule 2 being dispersed and collapsed by external forces. In order to avoid sparks during pipe welding, the positioning plug 3 can be made of explosion-proof materials, such as copper.

[0025] The airbag 1, the particle body 2 and the positioning plug 3 are usually inserted into the pipe at a position far away from the pipe welding port. Therefore, after the positioning plug 3 is inserted into the pipe body, in order to facilitate the removal of the pipe after the construction is completed, Figures 4 - 5 As shown, the positioning plug 3 is divided into a plurality of single parts 31 of fan-shaped structure, and a disassembly hole 3a is opened on the outer end surface of each single part 31, which is preferably a threaded hole structure. When the construction is completed and taken out, the plurality of single parts 31 can be pulled out by using a take-out rod 6 connected to the disassembly hole 3a, which can reduce the excessive contact friction resistance between the positioning plug 3 and the inner wall of the pipeline compared to taking out the positioning plug 3 as a whole, and facilitates the rapid removal of the positioning plug 3.

[0026] Since there is a threading gap when the positioning plug 3 is inserted into the pipeline, this gap will affect the sealing of the pipeline. At the same time, this gap will also cause the dispersed outflow of the granular body 2. Therefore, to solve this problem, as Figures 6 - 7 shown, a tapered hole 3b connected to each monomer part 31 is formed in the center of the positioning plug 3, and an expansion rod 4 is inserted into the tapered hole 3b. The expansion rod 4 is preferably a tapered structure that fits with the tapered hole 3b. After the monomer part 31 is inserted into the pipe body, the expansion rod 4 is inserted into the tapered hole 3b. During the insertion process, each monomer part 31 can be driven towards the outer direction ( Figure 7 as shown by the arrow in), thereby pressing each monomer part 31 against the inner wall of the pipeline, sealing the assembly gap, and avoiding the problem of incomplete plugging caused by the dispersion of the granular body 2 from the assembly gap. The connected pipelines usually have flange connection ports. Therefore, after the construction is completed, the positioning plugs 3 are taken out one by one, and then the granular body 2 is cleaned and the airbag 1 is taken out, as Figure 8 shown, to achieve safe and complete construction operations.

[0027] The principle of this application is: during the construction of the hot tapping connection of the refined oil pipeline, first, the airbag 1 is embedded into the pipe body, then the granular body 2 is filled on one side of the airbag 1, and then the positioning plugs 3 are embedded one by one. After embedding, the expansion rod 4 is inserted into the tapered hole 3b through threading, and the monomer part 31 is pressed against the inner wall of the pipeline. Then, the welding connection of the pipe orifice is carried out. After the construction is completed, the positioning plugs 3 are taken out one by one through the extraction rod, and then the granular body 2 is cleaned and the airbag 1 is taken out to achieve safe and complete construction operations.

[0028] The above shows and describes the basic principle, main features and advantages of this application. Without departing from the spirit and scope of this application, this application will have various changes and improvements, and these changes and improvements all fall within the scope of this application claimed.

Claims

1. A hot work joint construction component for a finished oil pipeline, comprising an air bag (1) embedded and sealed in a pipe body, characterized in that: A non-high temperature melting blocking body is arranged on one side of the airbag (1), and a positioning component connected to the blocking body is arranged on the outside of the blocking body.

2. The construction component according to claim 1, characterized in that: The plugging body is a granular body (2) filled in the tube body, and the outer side of the filled granular body is a slope structure.

3. The construction component according to claim 2, characterized in that: The positioning component is a positioning plug (3) embedded in the tube body and in contact with the inclined surface structure of the particle body (2).

4. The construction component according to claim 3, characterized in that: The positioning plug (3) is divided into a plurality of single parts (31) of fan-shaped structure, and a disassembly hole (3a) is provided on the outer end surface of each single part (31).

5. The construction component according to claim 4, characterized in that: A conical hole (3b) connected to each monomer part (31) is provided at the center of the positioning plug (3), and an expansion rod (4) is inserted into the conical hole (3b).

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