Foaming agent filling device for pipeline joint coating and pipeline joint coating system

By using the foaming agent filling device of the metering container and the mixing filling container in the pipeline filling system, the problems of difficulty in controlling the mixing ratio of the foaming agent and foam dissipation are solved, and the precise filling and efficient mixing of the foaming agent are achieved, which improves the filling effect and environmental protection.

CN222811426UActive Publication Date: 2025-04-29CHINA PETROLEUM & CHEMICAL CORP +1
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Patent Information

Application Number
CN202421943741.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-12
Publication Date
2025-04-29
Estimated Expiration
2034-08-12

AI Technical Summary

Technical Problem

In mountainous high-sulfur gas fields, pipelines often corrode. In the prior art, the mixing ratio of foaming agent cannot be controlled during the addition of foaming agent, and the foam insulation layer during foaming often dissipates, polluting the environment, making it difficult to achieve on-site operation and quality control.

Method used

A foaming agent filling device for pipe replenishment is provided, including a metering container and a mixing and filling container. It is connected through a pipeline to achieve accurate metering and full mixing of the foaming agent, ensuring that the amount and proportion of the foaming agent filling on the pipe is controllable.

Benefits of technology

Through precise metering and full mixing, the mixing effect of foaming agent and the accuracy of filling on the pipe are improved, the waste of foaming agent is avoided, utilization is improved, and environmental pollution is reduced.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of pipeline corrosion prevention and joint coating, in particular to a foaming agent filling device for pipeline joint coating and a pipeline joint coating system.The filling device comprises a metering container and a mixed filling container which are communicated through a pipeline. A filling port is formed in the mixing and filling container, the foaming agent can be input into the mixing and filling container along the pipeline for mixing after being metered in the metering container, and the mixing and filling container can fill the mixed foaming agent through the filling port. According to the foaming agent filling device, the filling device can be mounted at a specified position on a pipeline, the foaming agent can be accurately metered by using the metering container, so that the proportion of different components in the foaming agent is controllable, the mixing and filling container is used for fully mixing, the mixing effect can be effectively improved, and the filling amount of the foaming agent on the pipeline can be effectively controlled.
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Description

Technical Field

[0001] The utility model relates to the technical field of pipeline anticorrosion and patching, in particular to a foaming agent filling device for pipeline patching and a pipeline patching system. Background Art

[0002] In high-sulfur gas fields in mountainous areas, pipelines are often corroded due to factors such as undulating terrain and high soil moisture content. Currently, pipelines are protected from corrosion through intelligent detection, excavation verification, anti-corrosion patching and other measures. However, in anti-corrosion patching operations, due to terrain restrictions and operational risks, the equipment is cumbersome and inefficient during the operation. The foaming agent is added by turning the bucket upside down, stirring the mixed liquid with a wooden stick, and pouring it into the black polyethylene opening interlayer of the pipeline through the bucket. It is impossible to effectively control the ratio of the two foaming agents in mountainous terrain operations so that the foaming agents can be mixed and then poured into the pipeline. In addition, the foam insulation layer during the foaming process often escapes and pollutes the environment, which is not convenient for on-site operations and quality control. Therefore, there is an urgent need for an oil and gas pipeline anti-corrosion patching foaming agent filling and recovery device that can effectively measure the foaming amount, facilitate dumping, and facilitate on-site cleaning. Utility Model Content

[0003] The utility model aims to overcome the technical problem in the prior art that the mixing ratio of the foaming agent cannot be controlled during the process of adding the foaming agent to the pipeline, and provides a foaming agent filling device and a pipeline patching system for pipeline patching.

[0004] In a first aspect, the utility model provides a filling device for a foaming agent used for pipe patching, comprising a metering container and a mixing filling container, wherein the metering container is connected to the mixing filling container through a pipeline, and the mixing filling container is provided with a filling port, wherein the foaming agent can be metered in the metering container and then input into the mixing filling container along the pipeline for mixing, and the mixing filling container can fill the mixed foaming agent through the filling port.

[0005] Compared with the technical defect of the prior art that the mixing ratio of the foaming agent cannot be controlled by manually mixing the foaming agent in a barrel and directly pouring and filling it, the present application can install a filling device for the foaming agent used for pipe patching at a designated position on the pipe, and inject the foaming agent into a metering container. After the volume of the foaming agent is measured by the metering container, the foaming agent is input into a mixing and filling container through a pipeline for stirring and mixing. Then, the foaming agent can be filled into the designated position on the pipe through the mixing and filling container for patching and anti-corrosion operations. The metering container can be used to accurately measure the foaming agent, so that the ratio of different components in the foaming agent can be controlled, and then the mixing and filling container can be used for sufficient mixing, which can effectively improve the mixing effect and effectively control the amount of foaming agent filled on the pipe.

[0006] Preferably, a recovery unit is further included, wherein the recovery unit is connected to the metering container, the recovery unit is arranged on both sides of the pipeline and can match the pipeline, and the recovery unit can recover the foaming agent overflowing from the pipeline.

[0007] Preferably, the recovery unit comprises two recovery baffles arranged opposite to each other, and the two recovery baffles can be arranged on both sides of the pipeline respectively.

[0008] Preferably, a stirring mechanism is provided in the mixing and filling container.

[0009] Preferably, the stirring mechanism comprises a handle and a stirring rod connected to each other.

[0010] Preferably, two metering containers are included, and the two metering containers are connected to the mixing and filling container through two pipelines respectively.

[0011] Preferably, a first valve is respectively provided on the two pipelines.

[0012] Preferably, the measuring container is provided with scale lines.

[0013] Preferably, a second valve is provided on the filling port.

[0014] In a second aspect, the utility model provides a pipeline patching system, comprising a foaming agent filling device for pipeline patching as described above and a pipeline.

[0015] The foaming agent filling device for pipeline patching of the present application can be installed at a specified position on the pipeline before filling. After being measured and mixed, the foaming agent can be accurately filled to the patching position on the pipeline through a mixing and filling container. The component ratio in the foaming agent and the amount of foaming agent added to the pipeline can be precisely controlled, thereby improving the mixing and patching effects, avoiding waste of the foaming agent, and improving utilization.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] 1. The utility model provides a filling device for a foaming agent used for pipe patching, which can be installed at a designated position on a pipe, and the foaming agent is injected into a metering container, and after the volume of the foaming agent is measured by the metering container, the foaming agent is input into a mixing filling container through a pipeline for stirring and mixing, and then the foaming agent can be filled into the designated position on the pipe through the mixing filling container for patching and anti-corrosion operation; the metering container can be used to accurately measure the foaming agent, so that the proportion of different components in the foaming agent can be controlled, and then the mixing filling container can be used for sufficient mixing, which can effectively improve the mixing effect and also effectively control the filling amount of the foaming agent on the pipe.

[0018] 2. The utility model provides a pipe patching system, which can install a filling device for a foaming agent used for pipe patching at a designated position on the pipe before filling. After being measured and mixed, the foaming agent can be accurately filled to the patching position on the pipe through a mixing and filling container. The component ratio in the foaming agent and the amount of foaming agent filled in the pipe can be precisely controlled, thereby improving the mixing and patching effects, avoiding waste of the foaming agent, and improving utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of a foaming agent filling device for pipe patching of the utility model.

[0020] Markings in the figure:

[0021] 1. Measuring container, 2. Mixing and filling container, 21. Filling port, 3. Pipeline, 4. Recovery partition, 5. Handle, 6. Stirring rod, 7. First valve, 8. Pipeline. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with specific embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0023] Unless otherwise specified, in the description of the specific embodiments of the present utility model, the expression terms indicating the orientation or position relationship such as "upper", "lower", "left", "right", "center", "inside", "outside", etc. are all based on the expression of the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product / equipment / device of the utility model is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the utility model or simplifying the description in the specific embodiments, so that technicians can quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present utility model.

[0024] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the solution of the utility model.

[0025] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0026] In addition, in the description of the embodiments of the present invention, "several", "multiple" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0027] In addition, in the description of the technical solution of the utility model, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two components.

[0028] Example 1

[0029] This embodiment provides a foaming agent filling device for pipe patching.

[0030] Figure 1 It is a schematic diagram of a foaming agent filling device for pipe patching of the utility model.

[0031] like Figure 1As shown in the figure, the filling device of the foaming agent for pipe patching described in this embodiment may include a metering container 1 and a mixing filling container 2. The metering container 1 and the mixing filling container 2 may be connected via a pipeline 3. The mixing filling container 2 is provided with a filling port 21. The foaming agent can be poured into the metering container 1 for metering. After a preset volume of the foaming agent is measured by the metering container 1, the foaming agent is input into the mixing filling container 2 along the pipeline 3 for mixing. The mixing filling container 2 can fill the mixed foaming agent to a designated position on the pipeline 8 through the filling port 21.

[0032] Compared with the technical defect of the prior art that the mixing ratio of the foaming agent cannot be controlled by manually mixing the foaming agent in a barrel and directly pouring and filling it, the present application can install the filling device of the foaming agent for pipe patching at a specified position on the pipe 8, and inject the foaming agent into the metering container 1. After the volume of the foaming agent is measured by the metering container 1, the foaming agent is input into the mixing and filling container 2 through the pipeline 3 for stirring and mixing, and then the foaming agent can be filled into the specified position on the pipe 8 through the mixing and filling container 2 for patching and anti-corrosion operation; the metering container 1 can be used to accurately measure the foaming agent, so that the ratio of different components in the foaming agent can be controlled, and then the mixing and filling container 2 can be used for sufficient mixing, which can effectively improve the mixing effect and effectively control the filling amount of the foaming agent on the pipe 8.

[0033] Here, the designated position on the pipeline 8 can be in the interlayer sleeved on the pipeline 8, and the interlayer material can usually be polyethylene. An annular gap can be formed between the interlayer sleeved on the pipeline 8 and the pipeline 8. The position for adding the foaming agent can be located in the annular space between the interlayer and the pipeline 8 and at the patching position on the pipeline 8. The mixed foaming agent can solidify in the annular space after injection to form a foam insulation layer, which is coated on the pipeline 8 to insulate and heat the pipeline 8. Especially for the pipeline 8 in the wild mountain environment, it is often in a low temperature environment. In order to avoid the solidification of the conveying medium in the pipeline 8 at low temperature and affect the conveying performance of the pipeline 8, the problem can be solved by adding a foaming agent to the pipeline 8 to form an insulation layer. In addition, the insulation layer coated on the pipeline 8 can also realize the functions of corrosion protection and patching of the pipeline 8.

[0034] Specifically, the composition of the foaming agent can be polyurethane black and white material. The black material and white material components can be measured separately using a metering container 1. The measured black and white material components can be input into a mixing and filling container 2 for mixing. The mixed black and white material can then be added to the interlayer of the pipe 8 for foaming. After foaming, a foam insulation layer can be formed to patch, prevent corrosion and insulate the pipe 8.

[0035] In this embodiment, the filling device for the foaming agent for pipe patching may also include a recovery unit, which can be connected to the metering container 1. The recovery unit can be arranged on both sides of the pipe 8 and matched with the pipe 8 to recover the foaming agent overflowing from the pipe 8.

[0036] During the filling process of the foaming agent, the filling speed is usually difficult to control, and the foaming agent will often overflow from the interlayer of the pipe 8 due to excessive filling. Especially during the foaming process of the foaming agent, the foaming agent is more likely to escape. In order to effectively recover the overflowed foaming agent, recovery units can be set on both sides of the pipe 8. The foaming agent overflowing from the pipe 8 can flow down along the outer wall of the interlayer of the pipe 8 and enter the recovery unit for collection, which can effectively avoid the pollution of the environment caused by the escape of the foaming agent.

[0037] Optionally, the recovery unit may include two recovery baffles 4 disposed opposite to each other, and the two recovery baffles 4 may be disposed on both sides of the pipeline 8 respectively.

[0038] Specifically, two recovery baffles 4 can be installed on both sides of the pipe 8 to receive and collect the foaming agent overflowing from the pipe 8, which can effectively prevent the foaming agent from falling to the ground and causing pollution to the environment. The foaming agent collected on the recovery baffles 4 can be cleaned up manually after the filling is completed. Compared with the foaming agent escaping into the external environment and being difficult to clean up, the foaming agent collected on the recovery baffles 4 is more convenient to clean up and recycle. However, the utility model is not limited to this, and the recovery unit can also include other forms of foaming agent recovery structures, for example, a special container can be set under the pipe 8 to recover the foaming agent, etc., and is not limited to the above-mentioned recovery baffles 4, and the utility model does not make specific limitations on this.

[0039] In this embodiment, a stirring mechanism may be provided in the mixing and filling container 2. In order to further improve the mixing effect of the foaming agent in the mixing and filling container 2, a stirring mechanism may be installed in the mixing and filling container 2 to stir and mix the foaming agent. Usually, different components of the foaming agent may be measured in the metering container 1 respectively, and then the foaming agent may be transported to the mixing and filling container 2 through the pipeline 3. Then, the stirring mechanism is turned on to fully stir and mix the various components of the foaming agent in the mixing and filling container 2. The foaming agent may be quickly and evenly mixed under the stirring action of the stirring mechanism. Compared with natural mixing and manual stirring and mixing, mixing using the stirring mechanism can achieve a higher degree of uniformity and a faster mixing speed.

[0040] Optionally, the stirring mechanism may include a handle 5 and a stirring rod 6 connected to each other. Specifically, the stirring rod 6 may be controlled by operating the handle 5 to mix the foaming agent; however, the present invention is not limited thereto, and the stirring mechanism may also include stirring components in other structural forms, such as a stirrer controlled by a power source such as a motor, etc., and is not limited to the above-mentioned form of manually operating the handle 5 and the stirring rod 6, and the present invention does not specifically limit this.

[0041] In this embodiment, the foaming agent filling device for pipe patching may include two metering containers 1 , and the two metering containers 1 may be connected to the mixing and filling container 2 through two pipelines 3 , respectively.

[0042] Specifically, the number of metering containers 1 can be two, and different components of the foaming agent (such as black polyurethane and white polyurethane) can be loaded into the two metering containers 1 for separate metering, and then the measured components of the foaming agent can be simultaneously transported from the two metering containers 1 to the mixing and filling container 2 for mixing. Compared with the sequential metering and transportation of the components of the foaming agent through one metering container 1, the metering and mixing efficiency can be improved, and the foaming agent can be filled more timely, so that the foaming process of the foaming agent can be carried out as much as possible after filling, and the problem of the foaming agent having foamed and solidified before filling and being unable to be filled can be better avoided. However, the utility model is not limited to this, and the number of metering containers 1 can also be arbitrarily adjusted according to actual operation needs, not limited to one or two, and the utility model does not make specific limitations on this.

[0043] Optionally, the two pipelines 3 may be provided with a first valve 7 respectively. Specifically, the first valve 7 may be provided on the pipeline 3 to adjust the open or closed state of the pipeline 3, and the first valve 7 may be used to adjust the delivery speed of the foaming agent in the metering container 1 to the mixing and filling container 2. Here, the first valve 7 may be a needle valve, and the needle valve may accurately control its opening to adjust the delivery speed of the foaming agent; however, the utility model is not limited thereto, and the specific form of the first valve 7 may also be arbitrarily selected, not limited to the needle valve, and the utility model does not make specific limitations on this.

[0044] Optionally, graduation lines may be provided on the measuring container 1. Specifically, graduation lines may be provided on the outer wall of the measuring container 1 to indicate the volume of the foaming agent in the measuring container 1, so that the amount of the foaming agent can be accurately measured; however, the present invention is not limited thereto, and other measuring tools such as a level gauge may be provided on the measuring container 1 for measurement, not limited to graduation lines, and the present invention does not specifically limit this.

[0045] Optionally, a second valve (not shown in the figure) may be provided on the filling port 21. The second valve may be provided on the filling port 21 at the lower end of the mixed filling container 2, and the filling speed of the foaming agent may be adjusted by adjusting the opening of the second valve, and the foaming agent may be filled into the interlayer of the pipeline 8 along the filling port 21; here, the mixed filling container 2 may be in the shape of a funnel, and the filling port 21 may be provided at the position of the cone tip at the lower end of the funnel. When the second valve is opened, the foaming agent in the mixed filling container 2 may naturally flow out along the filling port 21 under the action of gravity, and when the filling port 21 is aligned with the designated filling position on the pipeline 8, the foaming agent may be accurately filled at the designated filling position on the pipeline 8; the second valve may be a needle valve, and the needle valve may accurately control its opening to adjust the filling speed of the foaming agent, but the utility model is not limited thereto, and the shape of the mixed filling container 2 may also be other shapes besides the funnel shape, and the specific form of the second valve may also be arbitrarily selected, not limited to the needle valve, and the utility model does not specifically limit this.

[0046] The working process of the foaming agent filling device for pipe patching described in this embodiment is described as follows:

[0047] First, different components of the foaming agent can be added to two metering containers 1 respectively, and the different components of the foaming agent can be measured by the two metering containers 1 respectively. After the measurement is completed, the first valve 7 on the pipeline 3 below the two metering containers 1 is opened, and the foaming agent can be input into the mixing and filling container 2, and the stirring mechanism is turned on. The handle 5 is used to operate the stirring rod 6 to mix the foaming agent. After the foaming agent is fully mixed, the foaming agent is then added to the interlayer annulus of the pipeline 8 through the filling port 21 at the lower end of the mixing and filling container 2. The foaming agent can foam in the interlayer annulus and solidify to form an insulation layer, thereby realizing the functions of insulation, patching and corrosion protection of the pipeline 8; the foaming agent overflowing from the top of the pipeline 8 during the filling process can also be recovered by the recovery partition 4, so as to facilitate cleaning after filling, so as to avoid the foaming agent directly escaping into the environment and causing pollution to the environment.

[0048] Example 2

[0049] This embodiment provides a pipeline patching system.

[0050] The pipe patching system described in this embodiment may include a filling device for a foaming agent for pipe patching and a pipe 8 as described in Embodiment 1. Here, the filling device for a foaming agent for pipe patching may be installed on the pipe 8.

[0051] The foaming agent filling device for pipe patching described in this embodiment can be installed at a specified position on the pipe 8 before filling. After being measured and mixed, the foaming agent can be accurately filled to the patching position on the pipe 8 through the mixing and filling container 2. The component ratio in the foaming agent and the amount of foaming agent added to the pipe 8 can be accurately controlled, thereby improving the mixing and patching effects, avoiding waste of the foaming agent, and improving utilization.

[0052] The structure and function of the foaming agent filling device for pipe patching described in this embodiment are consistent with those of the foaming agent filling device for pipe patching described in Example 1, so this embodiment will not be described in detail.

[0053] In summary, a filling device for a foaming agent used for pipe patching of the utility model can be installed at a designated position on the pipe, and the foaming agent is injected into a metering container. After the volume of the foaming agent is measured by the metering container, the foaming agent is input into a mixing filling container through a pipeline for stirring and mixing. Then, the foaming agent can be filled into the designated position on the pipe through the mixing filling container for patching and anti-corrosion operation. The foaming agent can be accurately measured by the metering container so that the proportion of different components in the foaming agent can be controlled, and then the mixing filling container is used for sufficient mixing, which can effectively improve the mixing effect and effectively control the filling amount of the foaming agent on the pipe. A pipe patching system of the utility model can install a filling device for a foaming agent used for pipe patching at a designated position on the pipe before filling. After metering and mixing, the foaming agent can be accurately filled into the patching position on the pipe through the mixing filling container. The proportion of components in the foaming agent and the amount of the foaming agent filled into the pipe can be accurately controlled, thereby improving the mixing and patching effects, avoiding waste of the foaming agent, and improving the utilization rate.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A foaming agent filling device for pipe patching, characterized in that: The invention comprises a metering container (1) and a mixing and filling container (2), wherein the metering container (1) is connected to the mixing and filling container (2) via a pipeline (3), and the mixing and filling container (2) is provided with a filling port (21). After being metered in the metering container (1), the foaming agent can be input into the mixing and filling container (2) along the pipeline (3) for mixing, and the mixing and filling container (2) can be filled with the mixed foaming agent through the filling port (21).

2. The foaming agent filling device for pipe patching according to claim 1, characterized in that: It also comprises a recovery unit, which is connected to the metering container (1), is arranged on both sides of the pipeline (8) and can match the pipeline (8), and can recover the foaming agent overflowing from the pipeline (8).

3. The foaming agent filling device for pipe patching according to claim 2, characterized in that: The recovery unit comprises two recovery baffles (4) arranged opposite to each other, and the two recovery baffles (4) can be arranged on both sides of the pipeline (8) respectively.

4. The foaming agent filling device for pipe patching according to claim 1, characterized in that: The mixing and filling container (2) is provided with a stirring mechanism.

5. The foaming agent filling device for pipe patching according to claim 4, characterized in that: The stirring mechanism comprises a handle (5) and a stirring rod (6) which are connected to each other.

6. The foaming agent filling device for pipe patching according to any one of claims 1 to 5, characterized in that: It comprises two metering containers (1), and the two metering containers (1) are respectively connected to the mixing and filling container (2) through the two pipelines (3).

7. The foaming agent filling device for pipe patching according to claim 6, characterized in that: The two pipelines (3) are respectively provided with a first valve (7).

8. The foaming agent filling device for pipe patching according to any one of claims 1 to 5, characterized in that: The measuring container (1) is provided with scale lines.

9. The foaming agent filling device for pipe patching according to any one of claims 1 to 5, characterized in that: The filling port (21) is provided with a second valve.

10. A pipeline patching system, characterized in that: It comprises a foaming agent filling device for pipe (8) patching as claimed in any one of claims 1 to 9 and a pipe (8).