Intelligent device suitable for shale gas pipeline agent coating

Abstract

The utility model relates to the technical field of shale gas pipeline maintenance, and discloses an intelligent device suitable for shale gas pipeline medicament coating, which comprises a medicament coating mechanism, the medicament coating mechanism comprises a steel skeleton structure and a coating unit, the steel skeleton structure comprises a main skeleton, a mounting bracket is arranged at the front end of the main skeleton, and the coating unit is arranged on the mounting bracket. The mounting bracket is detachably connected with the main framework, a guide plate is fixed on the mounting bracket, the coating unit comprises a coating piece rotationally arranged on the mounting bracket, the coating piece comprises fan blades and a brush, and the brush is fixedly arranged on the fan blades. The fan blades and the brush are pushed to rotate by utilizing airflow, so that the medicament is uniformly coated in the pipeline, the problems of non-uniform medicament distribution and gravity influence are effectively solved, and the medicament effect is remarkably improved. The device is driven by self operation pressure difference, external equipment or pipeline modification is not needed, the flexibility and convenience of medicament filling are remarkably enhanced, and the modification restriction on existing pipelines is reduced.

Description

Technical Field

[0001] This utility model relates to the field of shale gas pipeline maintenance technology, specifically to an intelligent device suitable for chemical coating of shale gas pipelines. Background Technology

[0002] During the operation of shale gas gathering and transportation systems, bactericides, corrosion inhibitors, and other chemicals are added to meet the actual production needs of the gas field. These chemicals are mostly liquid and are typically injected into the pipeline using pumps or balance tanks. The chemicals then flow within the pipeline or adhere to the pipe wall, carried by the surrounding medium. However, the current method of injecting liquid chemicals presents the following problems:

[0003] Firstly, liquid agents can only flow in the pipeline by being carried by the medium inside the pipe. Generally, the agent is concentrated near the injection point, and the agent content gradually decreases at the far end, which cannot achieve the desired dosing effect.

[0004] Secondly, due to the influence of gravity, the agent is concentrated at the bottom of the pipe, and the top and sides of the inside of the pipe can hardly be coated with the agent. For agents that need to be coated on the pipe wall, the efficacy can hardly be exerted.

[0005] Third, external dosing devices are required to dosing the chemicals. For pipelines without a chemical dosing process, an additional dosing process needs to be built, which imposes certain limitations on pipelines that do not have the conditions for chemical dosing. Utility Model Content

[0006] The present invention aims to provide an intelligent device suitable for chemical coating of shale gas pipelines, so as to reduce the restrictions on chemical dosing and improve the effect of chemical dosing.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: an intelligent device suitable for chemical coating of shale gas pipelines, comprising a chemical coating mechanism, the chemical coating mechanism comprising a steel frame structure and a coating unit, the steel frame structure comprising a main frame, a mounting bracket provided at the front end of the main frame, the mounting bracket being detachably connected to the main frame, a guide plate being fixed on the mounting bracket, and the coating unit comprising a coating component rotatably mounted on the mounting bracket, the coating component comprising a fan blade and a brush, the brush being fixedly mounted on the fan blade.

[0008] The beneficial effects of this solution are as follows: 1. When the device is running in the pipeline, the airflow drives the fan blades to rotate, which in turn drives the brush to rotate. The coating unit, through the rotating brush, enables the agent to be evenly coated in the pipeline, effectively overcoming the problems of uneven agent distribution and the influence of gravity. This ensures that the agent can be fully coated at the far end of the pipeline and in all parts, thereby significantly improving the efficacy. 2. The device requires no additional setup. It utilizes the pressure difference of the agent coating device advancing in the pipeline to drive the agent coating device to run in the pipeline. It does not require external filling devices or additional construction of filling processes, greatly reducing the requirements for modifying existing pipelines, improving the flexibility and convenience of agent filling, and reducing limitations.

[0009] Furthermore, the coating unit also includes a reagent chamber, which includes a pusher baffle. The reagent chamber is located inside the main frame, and the pusher baffle is slidably connected to the storage bin.

[0010] Beneficial effects: 1. By utilizing the pressure difference generated as the coating device advances within the pipeline, the rate at which the reagent flows out of the reagent chamber can be effectively controlled. As the airflow propels the coating device forward, the pusher baffle is subjected to reverse pressure and moves inward towards the reagent chamber, squeezing out the reagent as needed. The greater the pressure difference, the faster the reagent flows out, and vice versa, thus achieving precise control over the reagent release rate; 2. It avoids waste caused by releasing a large amount of reagent at once, ensuring uniform distribution of the reagent within the pipeline. Especially during periods of low pressure or no pressure difference, the pusher baffle does not rebound, effectively preventing unnecessary reagent loss and improving reagent utilization efficiency; 3. By closely integrating reagent release with the operating status of the coating device, the automation level of the coating operation is further improved, reducing the burden of manual intervention. This is beneficial for implementing reagent coating tasks in complex and long-distance shale gas pipeline environments, ensuring uniform coverage and effective use of the reagent throughout the pipeline.

[0011] Furthermore, the medicine chamber includes a liquid outlet, a liquid outlet pipe is fixedly installed at the liquid outlet, a check valve is installed on the liquid outlet pipe, and a discharge port is installed on the mounting bracket. The liquid outlet pipe is connected to the discharge port.

[0012] Beneficial effects: 1. By installing a one-way valve on the outlet pipe, it is ensured that the agent can only flow from the agent chamber to the brush part of the coating unit in one direction, effectively preventing the backflow of the agent when the coating device moves in the opposite direction or when there is no airflow drive, ensuring that the agent is always in a positive delivery state; 2. The one-way valve design can prevent external media (such as shale gas) from flowing back into the agent chamber through the outlet pipe when the pressure fluctuates, contaminating or diluting the agent, thereby maintaining the purity and efficacy of the agent, and also avoiding abnormal internal pressure of the device that may be caused by media backflow; 3. Through the precise design of the discharge port and its connection with the outlet pipe, the agent can be accurately and timely delivered to the coating position, enhancing the uniformity and effectiveness of the agent coating, and further improving the performance of the entire intelligent device in shale gas pipeline agent coating operations.

[0013] Furthermore, the mounting bracket is provided with protrusions, and the protrusions are attached to the coating part and have several grooves on the bonding surface. The protrusions are provided with annular grooves, the grooves are connected to the annular grooves, and the annular grooves are connected to the liquid outlet pipe.

[0014] Beneficial effects: 1. Through the precise design of the annular groove and groove opening, the agent can be effectively guided to the brush surface during the flow process, reducing splashing and evaporation losses, thereby improving agent utilization efficiency and reducing production costs. Simultaneously, the process of the agent flowing from the annular groove through the groove opening to the brush ensures the stability and controllability of agent delivery, preventing sudden large-scale influx or interruption of the agent, thus reducing waste and ensuring the continuity and consistency of the agent coating operation; 2. After flowing into the annular groove through the outlet pipe, the agent is then evenly dispersed onto the brush through the groove opening, enabling a fine and uniform distribution on the brush, avoiding agent accumulation or uneven distribution, thereby effectively improving the coating quality and coverage of the agent on the inner wall of the pipeline; 3. The agent can be evenly distributed on the brush at a suitable speed and concentration. During the brush rotation, the agent is evenly coated on the inner wall of the pipeline, significantly improving the treatment effect of the agent on pipeline corrosion prevention and scale prevention, extending pipeline service life, and reducing maintenance costs.

[0015] Furthermore, a spacer is installed between the medicine compartment and the steel frame structure.

[0016] Beneficial effects: The septum effectively prevents the chemical tank from shifting position during operation due to factors such as force or vibration, ensuring a stable connection between the chemical tank and the coating unit and maintaining the stability of chemical delivery. As a buffer element, the septum absorbs and disperses the force borne by the chemical tank when subjected to impact or pressure changes, thereby protecting the internal structure of the chemical tank, extending its service life, and reducing the possibility of chemical leakage. The septum also enhances the sealing between the chemical tank and the steel frame structure, preventing chemical leakage into the steel frame structure and ensuring that the chemical flows only within the predetermined path, thus improving the accuracy and efficiency of chemical coating.

[0017] Furthermore, a front plug is provided at the front end of the mounting bracket, and a pull ring is fixed on the front plug.

[0018] Beneficial effects: 1. The hollow design of the mounting bracket is used for installing and replacing the outlet pipe. The presence of the front plug effectively prevents debris from entering the mounting bracket, avoiding damage to the outlet pipe and ensuring smooth drug delivery and normal operation of the device; 2. By fixing a pull ring on the front plug, the operator can easily pull the entire device out from the front end, which not only facilitates the installation and disassembly of the device, but also provides convenience for maintenance, cleaning and replacement of the outlet pipe, greatly improving the maintainability and service life of the device.

[0019] Furthermore, it also includes a ball-serving mechanism and a ball-retrieving mechanism. The ball-serving mechanism includes a ball-serving tube, which is connected to a pressure generating unit and is adapted to a chemical coating mechanism. The ball-retrieving mechanism includes a ball-retrieving tube, which is connected to a venting pipe.

[0020] Beneficial Effects: Further improvements have been made to this invention, integrating a launching mechanism and a retrieval mechanism. The launching mechanism includes a launching tube connected to a pressure generating unit (such as an air compressor) to provide sufficient power to drive the coating agent mechanism smoothly within the shale gas pipeline. Simultaneously, the coating agent mechanism and the launching tube are designed to be compatible, ensuring close cooperation and efficient coating operations. The retrieval mechanism includes a retrieval tube, one end of which is connected to the shale gas pipeline, and the other end is equipped with a drain pipe. A buffer layer can be designed at the connection between the retrieval tube and the drain pipe to slow down the retrieval speed of the coating agent mechanism, preventing rigid collisions, reducing device wear, and extending its service life. Furthermore, the drain pipe can be directly connected to a wastewater tank, allowing excess pressure or residual substances accumulated inside the pipeline to be safely released during retrieval, effectively preventing the risk of pipe bursts due to excessive pressure and avoiding splashing of residual substances from the shale gas pipeline, ensuring safety and environmental protection at the work site.

[0021] Furthermore, it also includes a tracker that can record the amount of medicine used at every point in the pipeline.

[0022] Furthermore, it also includes a drug usage metering system, which can clearly identify the drug usage status of the dosing pipeline.

[0023] Beneficial effects: 1. The tracker can record the amount of chemical used at every point in the pipeline in real time, forming a detailed historical record of chemical usage. This allows for easy review and analysis during subsequent use, thereby optimizing the chemical dosing strategy and achieving precise traceability of chemical usage within the pipeline; 2. Through the chemical dosing and metering system, the chemical consumption of each section of the dosing pipeline can be clearly understood. When used again, the pipeline's internal detection information can be pre-entered into the metering device, and the dosage of chemical to be injected can be pre-set for key pipe sections that are known to be severely corroded or easily corroded; 3. When the device operates to the pre-set key chemical dosing point, the tracker and metering system work together to automatically adjust the amount of chemical injected according to the preset program, ensuring sufficient chemical coverage at critical points and effectively preventing over- or under-dosing, achieving precise fixed-point and quantitative chemical dosing. Attached Figure Description

[0024] Figure 1 This is an assembly diagram of Embodiment 1 of the present invention;

[0025] Figure 2 This is a three-dimensional view of the mounting bracket and coating component in Embodiment 1 of this utility model. Detailed Implementation

[0026] The following detailed description illustrates the specific implementation method:

[0027] The reference numerals in the accompanying drawings include: main frame 11, guide plate 121, protrusion 122, liquid inlet 124, annular groove 123, groove opening 1231, front plug 13, pull ring 131, first sealing plate 141, second sealing plate 142, tail plug 15, medicine chamber 21, liquid outlet 211, medicine pushing baffle 22, fan blade 31, and brush 32.

[0028] Example 1

[0029] Example 1 is basically as shown in the appendix. Figure 1-2 As shown, Figure 1-2 The device shown is an intelligent device for coating agents in shale gas pipelines, comprising a launching mechanism, a collecting mechanism, and a pipeline agent coating mechanism. The launching mechanism includes a launching cylinder and a pressure generating unit. The launching cylinder is adapted to the agent coating mechanism, and the pressure generating unit is connected to the launching cylinder. The pressure generating unit is preferably an air compressor, which provides power for the movement of the pipeline agent coating mechanism in the shale gas pipeline. The collecting mechanism includes a collecting cylinder, one end of which is connected to the shale gas pipeline, and the other end is provided with an vent pipe. A buffer layer is provided at the connection end between the collecting cylinder and the vent pipe to avoid rigid collision between the pipeline agent coating mechanism and the collecting cylinder, thereby reducing the service life of the pipeline agent coating mechanism. The vent pipe is connected to a sewage tank to prevent pipe bursts or splashing of residual substances in the shale gas pipeline due to excessive pressure.

[0030] like Figure 1 As shown, the pipeline chemical coating mechanism includes a steel frame structure and a coating unit. The steel frame structure includes a main frame 11, a mounting bracket, and a front plug 13. The main frame 11 is a hollow cylindrical structure, and flanges are welded to both ends of the main frame 11. A tail plug 15 is connected to the lower end of the main frame 11 through a flange. A first sealing plate 141 is provided between the tail plug 15 and the main frame 11 to form a sealing structure, preventing the gas below the first sealing plate 141 from communicating with the gas above, so that a pressure difference is formed above and below the first sealing plate 141, thereby driving the pipeline chemical coating mechanism to move inside the shale gas pipeline.

[0031] like Figure 1 , Figure 2 As shown, a flange is welded to the lower end of the mounting bracket, and an inlet 124 is provided inside the mounting bracket. A protrusion 122 is provided in the middle section, and a groove 1231 is provided at the upper end of the protrusion 122. An annular groove 123 is provided inside the protrusion 122, and the groove 1231 communicates with the annular groove 123. A guide plate is welded to the lower end of the protrusion 122. The front end of the main frame 11 is connected to the mounting bracket through a flange. A second sealing plate 142 is provided between the mounting bracket and the main frame 11. A guide plate 121 is welded on the mounting bracket. The front plug 13 is threaded to the upper end of the mounting bracket, and a pull ring 131 is welded to the upper end of the front plug 13 to facilitate ball collection.

[0032] The coating unit includes a coating component and a reagent chamber 21. The coating component includes a fan blade 31 and a brush 32, such as... Figure 2 As shown, the fan blade 31 includes a rotating shaft, and the brush 32 includes a brush body and a connector. The brush body is snapped onto the connector, and the connector is snapped onto or welded onto the rotating shaft, preferably snapped onto.

[0033] The reagent chamber 21 is located inside the main frame 11 and includes a liquid outlet pipe and a reagent pusher baffle 22. The reagent chamber 21 includes a liquid outlet 211 and the other end of the liquid outlet pipe is connected to the liquid inlet 124. A one-way valve is installed on the liquid outlet pipe. The liquid outlet pipe connects the liquid outlet 211 and the liquid inlet 124. The reagent pusher baffle 22 is slidably connected to the reagent chamber 21, so that the reagent in the reagent chamber 21 is unidirectionally introduced into the annular groove 123 through the liquid outlet pipe, and then flows out through the groove opening 1231. At the same time, the airflow in front drives the fan blade 31 to rotate, which in turn drives the brush 32 to rotate, so that the reagent flowing out of the groove opening 1231 is coated on the inner wall of the shale gas pipeline.

[0034] The specific implementation process is as follows:

[0035] First, a certain amount of medicine is injected into the medicine chamber 21. The device is placed in the ball launching tube. The medicine coating mechanism is pushed into the ball receiving tube by the ball launching mechanism. When the air pressure drives the device to move, the medicine pushing baffle 22 also moves, pushing the medicine in the medicine chamber 21 to flow out from the liquid outlet pipe, and then flow through the slot 1231 to the brush 32. The brush 32 rotates and evenly coats the medicine on the inner wall of the pipe, realizing all-round coating of medicine on the inner wall of the pipe.

[0036] Example 2

[0037] Based on Example 1, the agent coating mechanism in Example 2 further includes an agent usage metering system. The agent usage metering system includes a tracker, a sonar radar, and a processor. The tracker includes a flow meter and a gyroscope. The flow meter is installed on the outlet pipe to monitor the flow rate of the outlet pipe. The gyroscope monitors the speed of the agent coating mechanism, thereby recording the agent dosage at each point in the pipeline. The processor is electrically connected to the sonar radar, gyroscope, and flow meter. The sonar radar detects pipeline corrosion and transmits the detection information to the processor, thereby clarifying the agent usage in the dosing pipeline. Furthermore, as the agent coating mechanism moves within the pipeline, it records the agent dosage and pipeline corrosion at each point in the pipeline.

[0038] It also includes a linear motor, which is electrically connected to the processor. The linear motor includes a stator and a mover. The stator is fixed to the main frame 11 by bolts, and the mover is fixedly connected to the drug pushing partition 22.

[0039] When used again, the internal detection information of the pipeline can be entered into the chemical metering device, and the amount of chemical to be injected in key parts of the pipeline (severely corroded or easily corroded pipe sections) can be set in advance. Combined with the movement position of the tracker, when the device moves to the key chemical injection point, the required amount of chemical to be injected is set according to the metering system program.

[0040] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that the technical means used to solve problems in the above embodiments of this utility model can be combined to solve multiple technical problems simultaneously. For those skilled in the art, several modifications and improvements can be made without departing from the technical solution of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A smart device suitable for chemical coating of shale gas pipelines, characterized in that: The device includes a chemical coating mechanism, which comprises a steel frame structure and a coating unit. The steel frame structure includes a main frame with a mounting bracket at its front end. The mounting bracket is detachably connected to the main frame and a guide plate is fixed on the mounting bracket. The coating unit includes a coating component that is rotatably mounted on the mounting bracket. The coating component includes a fan blade and a brush, with the brush fixed on the fan blade.

2. The intelligent device for chemical coating of shale gas pipelines according to claim 1, characterized in that: The coating unit also includes a chemical chamber, which includes a chemical pushing baffle. The chemical chamber is located inside the main frame, and the chemical pushing baffle is slidably connected to the storage bin.

3. The intelligent device for chemical coating of shale gas pipelines according to claim 2, characterized in that: The reagent compartment includes a liquid outlet, a liquid outlet pipe is fixedly installed at the liquid outlet, a check valve is installed on the liquid outlet pipe, and a discharge port is installed on the mounting bracket. The liquid outlet pipe is connected to the discharge port.

4. The intelligent device for chemical coating of shale gas pipelines according to claim 3, characterized in that: The mounting bracket has protrusions, which are attached to the coating part and have several grooves on the bonding surface. The protrusions have annular grooves, which are connected to the buffer and the annular grooves are connected to the liquid outlet pipe.

5. The intelligent device for chemical coating of shale gas pipelines according to claim 4, characterized in that: A spacer is installed between the medicine compartment and the steel frame structure.

6. The intelligent device for chemical coating of shale gas pipelines according to claim 5, characterized in that: The mounting bracket has a front plug at the front end, and a pull ring is fixed on the front plug.

7. The intelligent device for chemical coating of shale gas pipelines according to claim 6, characterized in that: It also includes a ball-serving mechanism and a ball-retrieving mechanism. The ball-serving mechanism includes a ball-serving tube, which is connected to a pressure generating unit and is adapted to a chemical coating mechanism. The ball-retrieving mechanism includes a ball-retrieving tube, which is connected to a drain pipe.

8. A smart device for chemical coating of shale gas pipelines according to any one of claims 1-7, characterized in that: It also includes a tracker that can record the amount of medicine used at every point in the pipeline.

9. The intelligent device for chemical coating of shale gas pipelines according to claim 8, characterized in that: It also includes a drug usage metering system, which can clearly identify the drug usage status of the dosing pipeline.

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