Work shed for sand blasting construction of oil and gas pipeline

Abstract

The utility model provides an oil and gas pipeline sand blasting construction work shed which comprises a work shed body, a sand tank, an air compressor, a dust remover, wearable rubber gloves, a pair of bottom plates, a pair of annular sand blasting guns, a pair of isolation doors, a mechanical arm sand blasting gun access port and a mechanical arm sand blasting gun. The sand tank, the air compressor, the dust remover, the wearable rubber gloves and the mechanical arm sand blasting gun access port are all installed on the outer side wall of the work shed body, the pair of bottom plates are hinged to the bottom of the work shed body, and the pair of annular sand blasting guns are installed on the pair of bottom plates in a one-to-one correspondence mode; the pair of isolation doors are installed at the two ends of the work shed body in a one-to-one correspondence mode, the mechanical arm sand blasting gun is installed on the inner wall of the top of the work shed body, and the mechanical arm sand blasting gun is connected with the mechanical arm sand blasting gun access port through a pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of steel surface treatment before coating a long-distance oil and gas pipeline, in particular to a sandblasting construction shed for an oil and gas pipeline. Background Art

[0002] Traditional manual sandblasting and rust removal equipment was once widely used in the surface treatment of girth welds in the line section of oil and gas pipeline construction, playing an important role in the anti-corrosion patching link of oil and gas pipeline construction. In recent years, the anti-corrosion operation of oil and gas pipelines has gradually combined with automation control technology to achieve mechanized patching, and rust removal equipment has reached a new level: mechanized automatic girth sandblasting and rust removal equipment can solve the shortcomings of rust removal operations such as high labor intensity, low efficiency, low rust removal quality and poor safety, and has played a huge role in promoting environmental protection.

[0003] However, the upgrade and transformation of mechanized rust removal equipment faces the problems of a large increase in maintenance and repair costs, increased consumption of supporting machinery and equipment, and a significant improvement in the capabilities of on-site construction workers. At the same time, bottleneck problems such as insufficient height and span size in some special sections and special terrain construction areas of pipeline engineering construction have emerged, resulting in the inability to use mechanized anti-corrosion processes in some operating scenarios. Therefore, combined with the existing conditions of oil and gas pipeline line engineering construction, how to flexibly apply mechanized rust removal technology to the upgrade and transformation of existing rust removal equipment is an issue that pipeline construction and operation units must consider.

[0004] Manual rust removal also has certain problems. Horizontal sandblasting rust removal equipment using compressed air as the medium plays an important role in the anti-corrosion patching of oil and gas pipelines: it improves the quality of surface treatment, improves work efficiency, and is conducive to the centralized operation of pipeline anti-corrosion patching. However, horizontal sandblasting rust removal equipment is a manual or semi-automatic equipment that uses compressed air as the power to spray sand and pellets for rust removal. Manual handheld spray guns are used to blast rust removal on the fixed pipeline surface. Manual intervention can ensure the rust removal effect, but there are also problems such as high equipment failure rate, operator safety and occupational health and hygiene.

[0005] How to combine the advantages of mechanized patching and manual rust removal, combine the advantages of welding sheds and anti-corrosion sheds for secondary development, and develop a new type of fully enclosed intelligent unmanned and pollution-free rust removal equipment for oil and gas pipelines, while ensuring the real-time collection requirements of relevant process parameters of the intelligent construction site, is a key technical problem that needs to be urgently solved in the field of oil and gas pipeline anti-corrosion technology. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a sandblasting construction shed for oil and gas pipelines in view of the deficiencies of the prior art.

[0007] The technical solution of the present utility model to solve the above technical problems is as follows: An oil and gas pipeline sandblasting construction shed, comprising: a shed body, a sand tank, an air compressor, a dust collector, rubber gloves for wearing, a pair of bottom plates, a pair of annular sandblasting guns, a pair of isolation doors, a robotic arm sandblasting gun inlet, and a robotic arm sandblasting gun. The sand tank, the air compressor, the dust collector, the rubber gloves for wearing, and the robotic arm sandblasting gun inlet are all installed on the outer side wall of the shed body. A pair of the bottom plates are hinged to the bottom of the shed body. A pair of the annular sandblasting guns are respectively installed on the pair of bottom plates. A pair of the isolation doors are respectively installed at both ends of the shed body. The robotic arm sandblasting gun is installed on the inner wall of the top of the shed body. The robotic arm sandblasting gun is connected to the robotic arm sandblasting gun inlet through a pipeline.

[0008] The beneficial effects of adopting the technical solution of the present utility model are as follows: The annular sandblasting guns are installed on the split bottom plates of the shed and automatically close on the lower half circumference of the pipeline anticorrosion joint construction position when buckled on the pipeline by a hoisting machine. The robotic arm sandblasting gun is used to cover the sandblasting range on the upper half circumference of the pipeline anticorrosion joint construction position. When the hoisting equipment buckles the shed on the pipeline, the split isolation doors are manually closed and locked by the operator. The lower part of the isolation door is tightly buckled with the shed bottom plate to prevent air leakage. When the bottom plates contact the ground after the hoisting equipment drops the shed, they will automatically close and lock to complete the bottom seal and achieve the bottom plate seal. The shed is designed to be fully enclosed. If internal operation is required, the hand can be inserted into the interior through the rubber gloves for wearing for simple treatment to achieve the operation form in a sealed state. It is convenient for installation and use, and has high construction efficiency. It can quickly and efficiently complete the surface treatment operation of steel pipelines, effectively shield a large amount of dust and noise generated during the sandblasting and rust removal process, prevent sandblasting construction from polluting the air and environment, and protect the physical health of construction workers.

[0009] Further, a working state detection mechanism is installed on the top of the shed body.

[0010] The beneficial effect of adopting the above further technical solution is that the working state detection mechanism is a detection or acquisition device for various internal and external system parameters.

[0011] Further, the working state detection mechanism includes: an infrared temperature detection system, a humidity detection system, a visual recognition system for the cleanliness of the steel pipe surface, and a video acquisition system. The infrared temperature detection system, the humidity detection system, the visual recognition system for the cleanliness of the steel pipe surface, and the video acquisition system are all facing the position of the pipe orifice construction.

[0012] The beneficial effects of adopting the above further technical solution are as follows: The infrared temperature detection system inside the shed can detect the temperature at the position of the sandblasting nozzle in real time. The humidity detection systems inside and outside the shed can detect the temperature values of the internal and external environments of the shed in real time. The visual recognition system for the cleanliness of the steel pipe surface is used to collect high-resolution image information. The video acquisition system is used to monitor the construction images inside the shed in real time. The integrated detection means can reduce the labor intensity of the detection personnel, improve the detection efficiency and detection accuracy.

[0013] Furthermore, a wireless operation handle is installed on the shed main body, and the robotic arm sandblasting gun, the infrared temperature detection system, the humidity detection system, and the video acquisition system are all connected to the wireless operation handle; the wireless operation handle is connected to a project construction information management system through WIFI wireless local area network technology.

[0014] The beneficial effects of adopting the above further technical solution are as follows: The infrared temperature detection system inside the shed can detect the temperature at the position of the sandblasting nozzle in real time. The humidity detection systems inside and outside the shed can detect the temperature values of the internal and external environments of the shed in real time, and synchronously upload the test results to the wireless operation handle in real time with the infrared temperature detection system. Through comprehensive judgment, it can be known whether the construction environment will cause dew or frost on the nozzle. The visual recognition system for the cleanliness of the steel pipe surface collects high-resolution image information, comprehensively compares it with the results of visual big data training, and will intelligently determine the cleanliness level of the pipe orifice surface after treatment. The video acquisition system is connected to the wireless operation handle and the project construction information management system through WIFI wireless local area network technology, and can monitor the construction images inside the shed in real time. The integrated detection means can reduce the labor intensity of the detection personnel, improve the detection efficiency and detection accuracy. Remote control sandblasting and rust removal can be carried out for the anti-corrosion repair of oil and gas pipelines.

[0015] Furthermore, the sand tank and the air compressor are both connected to a pair of the annular sandblasting guns through pipelines; the dust collector is communicated with the inside of the shed body.

[0016] The beneficial effects of adopting the above further technical solution are as follows: The sand tank is used to provide quartz sand for sandblasting and rust removal. The air compressor is used to provide compressed air with a stable pressure of 0.8 MPa. The dust collector is used to clean and circulate the air inside the shed.

[0017] Furthermore, the access port of the robotic arm sandblasting gun is isolated by a sealing material, and the sealing material is one or more of a polyethylene strip, a PVC strip, a soft brush, an aerogel felt, and a silicone strip.

[0018] The beneficial effects of adopting the above further technical solution are as follows: The top access port is sealed, and a fully enclosed design of the shed is realized.

[0019] Further, the isolation door is a double-opening isolation door, and an opening adapted to the outer diameter of the pipeline to be constructed is provided on the isolation door, and the inner diameter position of the opening is sealed and isolated by soft felt, polyethylene pad, soft brush or silicone strip.

[0020] The beneficial effects of adopting the above further technical solution are as follows: both the inlet end and the outlet end of the pipeline are sealed by double-opening isolation doors. The opening of the double-opening isolation door is consistent with the outer diameter of the pipeline to be constructed. The inner diameter position of the opening in direct contact with the pipeline is sealed and isolated by soft felt, polyethylene pad, soft brush and silicone strip, so as to realize the sealing of the inlet end and the outlet end of the pipeline and the fully enclosed design of the shed.

[0021] Further, an observation hole and a ventilation opening are installed on the outer side wall of the shed body; the robotic arm sandblasting gun is installed at the central position of the inner wall of the top of the shed body; quartz sand is provided in the sand tank; the air compressor is an air compressor with an air tank; the dust collector includes one or two of a bag filter, a cartridge filter, an electrostatic precipitator and an electro-bag composite precipitator connected in series.

[0022] The beneficial effects of adopting the above further technical solution are as follows: the robotic arm sandblasting gun is installed at the central position of the top of the shed, and the sandblasting range covering the upper half week of the pipeline anti-corrosion repair joint construction position is realized through the control of the wireless operation handle. The sand tank is used to provide quartz sand for sandblasting and rust removal. The air compressor is used to provide compressed air with a stable pressure of 0.8 MPa. The operator monitors the internal construction status through the observation hole. If internal operation is required, the operator can put on rubber gloves and stretch the hand into the interior for simple treatment to realize the operation form under the sealed state. The ventilation opening can be opened or closed as required. The dust collector is used to clean and circulate the air inside the shed.

[0023] Further, the annular sandblasting gun includes: a support base and a plurality of fixed nozzles. The support base is installed on the bottom plate. An arc structure adapted to the outer diameter of the pipeline to be constructed is provided at the top of the support base. The plurality of fixed nozzles are installed on the arc structure. The support base is connected to the sand tank and the air compressor through pipelines.

[0024] The beneficial effects of adopting the above further technical solution are as follows: the support base is connected to the sand tank and the air compressor through a conduit to realize the continuous supply of quartz sand and compressed air, and the rapid sandblasting and rust removal operation of 180° for the lower half week of the pipe orifice is realized after the bottom plate is buckled.

[0025] Further, the robotic arm sandblasting gun includes: multiple sections of support connecting rods, a plurality of universal joints and a movable spray gun. The multiple sections of support connecting rods are sequentially connected through the plurality of universal joints. The top of the multiple sections of support connecting rods is connected to the access port of the robotic arm sandblasting gun through a pipeline. The movable spray gun is installed at the bottom of the multiple sections of support connecting rods.

[0026] The beneficial effects of adopting the above further technical solution are as follows: The robotic arm sandblasting gun adopts a multi-section support connecting rod structure, and with the universal joint, it can freely control the position, sandblasting direction, and moving speed of the moving gun, realizing the sandblasting and rust removal operation for 180° of the upper half circumference of the pipe orifice.

[0027] The advantages of the additional aspects of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0028] Figure 1 It is one of the structural schematic diagrams of the oil and gas pipeline sandblasting construction shed provided by the embodiment of the present utility model.

[0029] Figure 2 It is the second structural schematic diagram of the oil and gas pipeline sandblasting construction shed provided by the embodiment of the present utility model.

[0030] Figure 3 It is the third structural schematic diagram of the oil and gas pipeline sandblasting construction shed provided by the embodiment of the present utility model.

[0031] Figure 4 It is the fourth structural schematic diagram of the oil and gas pipeline sandblasting construction shed provided by the embodiment of the present utility model.

[0032] Figure 5 It is the fifth structural schematic diagram of the oil and gas pipeline sandblasting construction shed provided by the embodiment of the present utility model.

[0033] Explanation of the reference numerals in the drawings: 1. Sand tank; 2. Air compressor; 3. Dust collector; 4. Wireless operation handle; 5. Wear rubber gloves; 6. Bottom plate; 7. Support base; 8. Ring-shaped sandblasting gun; 9. Isolation door; 10. Ventilation opening; 11. Robotic arm sandblasting gun access port; 12. Observation hole; 13. Robotic arm sandblasting gun; 14. Universal joint; 15. Moving gun; 16. Infrared temperature detection system; 17. Humidity detection system; 18. Visual recognition system for the cleanliness of the steel pipe surface; 19. Video acquisition system. Detailed Embodiment

[0034] The principles and features of the present utility model will be described below in conjunction with the drawings. The illustrated embodiments are only used to explain the present utility model and are not intended to limit the scope of the present utility model.

[0035] Such as Figures 1 to 5As shown in the figure, an embodiment of the utility model provides a sandblasting construction shed for oil and gas pipelines, which includes: a shed body, a sand tank 1, an air compressor 2, a dust collector 3, rubber gloves 5 to be worn, a pair of bottom plates 6, a pair of annular sandblasting guns 8, a pair of isolation doors 9, a mechanical arm sandblasting gun access port 11, and a mechanical arm sandblasting gun 13. The sand tank 1, the air compressor 2, the dust collector 3, the rubber gloves 5 to be worn, and the mechanical arm sandblasting gun access port 11 are all installed on the outer side wall of the shed body. A pair of the bottom plates 6 are hinged to the bottom of the shed body. A pair of the annular sandblasting guns 8 are correspondingly installed on a pair of the bottom plates 6. A pair of the isolation doors 9 are correspondingly installed at both ends of the shed body. The mechanical arm sandblasting gun 13 is installed on the inner wall of the top of the shed body. The mechanical arm sandblasting gun 13 is connected to the mechanical arm sandblasting gun access port 11 through a pipeline.

[0036] The beneficial effects of adopting the technical solution of the utility model are as follows: The annular sandblasting guns are installed on the split bottom plates of the shed and automatically close on the lower half circumference of the construction position for anti-corrosion repair of the pipeline when buckled on the pipeline by the hoisting machinery. The mechanical arm sandblasting gun is used to cover the sandblasting range on the upper half circumference of the construction position for anti-corrosion repair of the pipeline. When the hoisting equipment buckles the shed on the pipeline, the split isolation doors are manually closed and locked by the operator. The lower part of the isolation door is tightly buckled with the shed bottom plate to prevent air leakage. When the hoisting equipment drops the shed, the bottom plates will automatically close and lock after contacting the ground, completing the bottom seal and realizing the bottom plate seal. The shed is designed to be fully enclosed. If internal operation is required, the hand can be inserted into the interior through the rubber gloves to be worn for simple treatment, realizing the operation form under the sealed state. It is convenient for installation and use, and has high construction efficiency. It can quickly and efficiently complete the surface treatment operation of the steel pipeline, effectively shield a large amount of dust and noise generated during the sandblasting and rust removal process, prevent the sandblasting construction from polluting the air and the environment, and protect the physical health of the construction personnel.

[0037] As Figures 1 to 5As shown in the figure, an oil and gas pipeline sandblasting construction shed provided by an embodiment of the present utility model can be an intelligent remote pollution-free oil and gas pipeline sandblasting construction shed, which includes a fully enclosed shed (shed body), an infrared temperature detection system 16 inside the shed calibrated by a contact thermometer, a humidity detection system 17 inside and outside the shed, a visual recognition system 18 for the cleanliness of the steel pipe surface, four video acquisition systems 19, a dust collector 3 for cleaning and circulating the air inside the shed, a sand tank 1 for providing quartz sand for sandblasting and rust removal, and an air compressor 2 with a regulated pressure of 0.8 MPa (which can be an air compressor with an air tank), a ring-shaped sandblasting gun 8, a robotic arm sandblasting gun 13, and a wireless operation handle 4. The infrared temperature detection system 16, the humidity detection system 17, the visual recognition system 18 for the cleanliness of the steel pipe surface, and the video acquisition system 19 are installed at positions on the shed roof facing the pipe orifice construction. The dust collector 3, the sand tank 1, and the air compressor 2 are installed on the outer wall of the shed and are connected to the internal system through a medium conduit to realize the functions of each component. The ring-shaped sandblasting gun 8 is installed on the split bottom plate 6 of the shed and automatically closes on the lower half circumference of the pipeline anticorrosion repair joint construction position when buckled on the pipeline by a hoisting machine. The robotic arm sandblasting gun 13 is installed at the central position of the shed roof and realizes the coverage of the sandblasting range on the upper half circumference of the pipeline anticorrosion repair joint construction position through the control of the wireless operation handle 4. The wireless operation handle 4 is connected to the engineering construction information management system through WIFI wireless local area network technology and has the functions of remote control, data processing, and data uploading.

[0038] Further, a working state detection mechanism is installed on the top of the shed body.

[0039] The beneficial effect of adopting the above further technical solution is that the working state detection mechanism is a detection or acquisition device for various internal and external system parameters.

[0040] As Figures 1 to 5 shown, further, the working state detection mechanism includes: an infrared temperature detection system 16, a humidity detection system 17, a visual recognition system 18 for the cleanliness of the steel pipe surface, and a video acquisition system 19. The infrared temperature detection system 16, the humidity detection system 17, the visual recognition system 18 for the cleanliness of the steel pipe surface, and the video acquisition system 19 are all facing the pipe orifice construction position.

[0041] The beneficial effect of adopting the above further technical solution is that the infrared temperature detection system inside the shed can detect the temperature at the sandblasting pipe orifice position in real time. The humidity detection system inside and outside the shed can detect the temperature values of the internal and external environments of the shed in real time. The visual recognition system for the cleanliness of the steel pipe surface is used to collect high-resolution image information. The video acquisition system is used to monitor the construction images inside the shed in real time. The integrated detection means can reduce the labor intensity of the detection personnel, improve the detection efficiency and detection accuracy.

[0042] As Figures 1 to 5As shown in the figure, further, a wireless operation handle 4 is installed on the shed main body, and the robotic arm sandblasting gun 13, the infrared temperature detection system 16, the humidity detection system 17, and the video acquisition system 19 are all connected to the wireless operation handle 4; the wireless operation handle 4 is connected to the engineering construction information management system through WIFI wireless local area network technology.

[0043] The beneficial effects of adopting the above further technical solution are as follows: The infrared temperature detection system inside the shed can detect the temperature at the position of the sandblasting pipe orifice in real time. The humidity detection systems inside and outside the shed can detect the temperature values of the internal and external environments of the shed in real time, and synchronously upload the test results of the infrared temperature detection system to the wireless operation handle in real time. Through comprehensive judgment, it can be known whether the construction environment will cause dew or frost on the pipe orifice. The visual recognition system for the cleanliness of the steel pipe surface collects high-resolution image information, comprehensively compares it with the results of visual big data training, and can intelligently determine the cleanliness level after the surface treatment of the pipe orifice. The video acquisition system is connected to the wireless operation handle and the engineering construction information management system through WIFI wireless local area network technology, and can monitor the construction images inside the shed in real time. The integrated detection means can reduce the labor intensity of the detection personnel, improve the detection efficiency and detection accuracy. Remote control sandblasting and rust removal can be carried out for the anti-corrosion repair of oil and gas pipelines.

[0044] It should be noted that the collection, analysis, calculation, and control methods of the sand tank 1, the air compressor 2, the dust collector 3, the wireless operation handle 4, the ventilation opening 10, the robotic arm sandblasting gun 13, the infrared temperature detection system 16, the humidity detection system 17, the visual recognition system 18 for the cleanliness of the steel pipe surface, the video acquisition system 19, and the engineering construction information management system are existing technologies, and those skilled in the art can easily figure out how to program according to actual needs, so details are not described here.

[0045] As Figures 1 to 5 shown in the figure, further, both the sand tank 1 and the air compressor 2 are connected to a pair of the annular sandblasting guns 8 through pipelines; the dust collector 3 is communicated with the inside of the shed main body.

[0046] The beneficial effects of adopting the above further technical solution are as follows: The sand tank is used to provide quartz sand for sandblasting and rust removal. The air compressor is used to provide compressed air with a stable pressure of 0.8 MPa. The dust collector is used to clean and circulate the air inside the shed.

[0047] As Figures 1 to 5 shown in the figure, further, the access port 11 of the robotic arm sandblasting gun is isolated with a sealing material, and the sealing material is one or more of a polyethylene strip, a PVC strip, a soft brush, an aerogel felt, and a silicone strip.

[0048] The beneficial effects of adopting the above further technical solution are as follows: It realizes the sealing of the top access port and realizes the fully enclosed design of the shed.

[0049] As shown Figures 1 to 5 in the figure, further, the isolation door 9 is a double-leaf isolation door, and an opening adapted to the outer diameter of the pipeline to be constructed is provided on the isolation door 9, and the inner diameter position of the opening is sealed and isolated by a soft felt, a polyethylene pad, a soft brush or a silicone strip.

[0050] The beneficial effects of adopting the above further technical solution are as follows: Both the inlet end and the outlet end of the pipeline are sealed by double-leaf isolation doors. The opening of the double-leaf isolation door is consistent with the outer diameter of the pipeline to be constructed. The inner diameter position of the opening in direct contact with the pipeline is sealed and isolated by a soft felt, a polyethylene pad, a soft brush or a silicone strip, so as to realize the sealing of the inlet end and the outlet end of the pipeline and achieve the fully enclosed design of the shed.

[0051] As shown Figures 1 to 5 in the figure, further, an observation hole 12 and a ventilation opening 10 are installed on the outer side wall of the shed body; the robotic arm sandblasting gun 13 is installed at the central position of the inner wall of the top of the shed body; quartz sand is provided in the sand tank 1; the air compressor 2 is an air compressor with an air tank; the dust collector 3 includes one or two of a bag dust collector, a cartridge dust collector, an electrostatic dust collector and an electric bag composite dust collector used in series.

[0052] The beneficial effects of adopting the above further technical solution are as follows: The robotic arm sandblasting gun is installed at the central position of the top of the shed, and the sandblasting range covering the upper half of the pipeline anti-corrosion joint construction position is realized through the control of the wireless operation handle. The sand tank is used to provide quartz sand for sandblasting and rust removal. The air compressor is used to provide compressed air with a stable pressure of 0.8 MPa. The operator monitors the internal construction status through the observation hole. If internal operation is required, the operator can reach into the interior through wearing rubber gloves for simple treatment, realizing the operation form in a sealed state. The ventilation opening can be opened or closed as required. The dust collector is used to clean and circulate the air inside the shed.

[0053] As shown Figures 1 to 5 in the figure, further, the annular sandblasting gun 8 includes: a support base 7 and a plurality of fixed nozzles. The support base 7 is installed on the bottom plate 6. An arc structure adapted to the outer diameter of the pipeline to be constructed is provided at the top of the support base 7. The plurality of fixed nozzles are installed on the arc structure. The support base 7 is connected to the sand tank 1 and the air compressor 2 through pipelines.

[0054] The beneficial effects of adopting the above further technical solution are as follows: The support base is connected to the sand tank and the air compressor through pipelines, realizing the continuous supply of quartz sand and compressed air, and realizing the rapid sandblasting and rust removal operation of 180° for the lower half circumference of the pipe orifice after the bottom plate is buckled.

[0055] As shown Figures 1 to 5As shown in the figure, further, the robotic arm sandblasting gun 13 includes: multiple sections of support connecting rods, multiple universal joints 14, and a movable spray gun 15. The multiple sections of support connecting rods are sequentially connected through the multiple universal joints 14. The top of the multiple sections of support connecting rods is connected to the robotic arm sandblasting gun inlet 11 through a pipeline, and the movable spray gun 15 is installed at the bottom of the multiple sections of support connecting rods.

[0056] The beneficial effects of adopting the above further technical solution are: The robotic arm sandblasting gun adopts a multi-section support connecting rod structure. With the cooperation of the universal joints, the position, sandblasting direction, and moving speed of the movable spray gun can be freely controlled, realizing the sandblasting and rust removal operation of 180° on the upper half circumference of the pipe orifice.

[0057] The shed is designed with a fully enclosed structure. Among them, the robotic arm sandblasting gun inlet 11 at the top is isolated with a sealing material, and the sealing material is one or a mixture of polyethylene strips, PVC strips, soft brushes, aerogel felts, and silicone strips, realizing the sealing of the top inlet.

[0058] Both the inlet end and the outlet end of the pipeline are sealed with split isolation doors 9. The opening of the split isolation door 9 is the same as the outer diameter of the pipeline to be constructed. The inner diameter position of the opening in direct contact with the pipeline is sealed and isolated with soft felt, polyethylene pads, soft brushes, and silicone strips, realizing the sealing of the inlet end and the outlet end of the pipeline.

[0059] When the hoisting equipment buckles the shed (oil and gas pipeline sandblasting construction shed) on the pipeline, the split isolation door is manually closed and locked by the operator. The lower part of the isolation door 9 is tightly buckled with the shed bottom plate to prevent air leakage. When the shed drops to the ground during the hoisting of the bottom plate 6, it will automatically close and lock after contacting the ground, completing the bottom sealing and realizing the bottom plate sealing.

[0060] The operator monitors the internal construction status through the observation hole 12. If internal operation is required, the hand can be inserted into the interior through wearing rubber gloves 5 for simple treatment, realizing the operation form in a sealed state. The ventilation opening 10 can be opened or closed as required.

[0061] Furthermore, the infrared temperature detection system 16 inside the shed, the humidity detection system 17 inside and outside the shed, the visual recognition system 18 for the cleanliness of the steel pipe surface, and the video acquisition system 19 are all devices for detecting or collecting various internal and external system parameters. The infrared temperature detection system 16 inside the shed is calibrated regularly with a contact thermometer according to the relevant national standards and can detect the temperature at the position of the sandblasting nozzle in real time. The humidity detection system 17 inside and outside the shed can detect the temperature values of the internal and external environments of the shed in real time, and the test results are uploaded to the wireless operation handle 4 in real time synchronously with those of the infrared temperature detection system 16. Through comprehensive judgment, it can be known whether the construction environment will cause dew or frost formation at the pipe orifice. The visual recognition system 18 for the cleanliness of the steel pipe surface collects high-resolution image information, comprehensively compares it with the training results of visual big data, and will intelligently determine the cleanliness level of the pipe orifice surface after surface treatment. The video acquisition system 19 is connected to the wireless operation handle 4 and the engineering construction information management system through WIFI wireless local area network technology, and can monitor the construction images inside the shed in real time.

[0062] Furthermore, the sandblasting device includes two parts, namely the annular sandblasting gun 8 and the robotic arm sandblasting gun 13. The annular sandblasting gun 8 includes a support base 7 and a fixed nozzle. The support base 7 is connected to the sand tank 1 and the air compressor 2 through a conduit to achieve continuous supply of quartz sand and compressed air. After the bottom plate 6 is buckled, rapid sandblasting and rust removal operations for 180° of the lower half circumference of the pipe orifice can be realized. The robotic arm sandblasting gun 13 adopts a multi-segment support link structure, and with the cooperation of the universal joint 14, the position, sandblasting direction, and moving speed of the movable sandblasting gun 15 can be freely controlled to realize sandblasting and rust removal operations for 180° of the upper half circumference of the pipe orifice.

[0063] Furthermore, the sand tank 1 and the air compressor 2 are installed and fixed at the position of the outer wall of the shed, and continuously supply quartz sand and 0.8 MPa compressed air to the sandblasting guns inside the shed through pipelines. The dust collector 3 is fixed on the outer wall of the shed and includes one or two of bag type, cartridge type, electrostatic type, and electro-bag composite type used in series.

[0064] The beneficial effects of adopting the above solution are as follows: This device (the sandblasting construction shed for oil and gas pipelines) is easy to install, convenient to use, and has high construction efficiency. The integrated detection means can reduce the labor intensity of the detection personnel, improve the detection efficiency and detection accuracy. At the same time, this device (the sandblasting construction shed for oil and gas pipelines) can perform remote control sandblasting and rust removal for the anti-corrosion repair of oil and gas pipelines, quickly and efficiently complete the surface treatment operation of steel pipelines, effectively shield a large amount of dust and noise generated during the sandblasting and rust removal process, prevent sandblasting construction from polluting the air and environment, and protect the physical health of construction personnel.

[0065] The achieved effects will be described in detail below in combination with the structure and principle.

[0066] The realization of the fully enclosed shed mainly relies on:

[0067] 1. The top access port is sealed. The access port 11 of the robotic sandblasting gun at the top is isolated with a sealing material, which is one or a mixture of polyethylene strips, PVC strips, soft brushes, aerogel felts, and silicone strips.

[0068] 2. The inlet and outlet ends of the pipeline are sealed. Both the inlet and outlet ends of the pipeline are sealed with split isolation doors 9. The opening of the split isolation door is the same as the outer diameter of the pipeline to be constructed, and the inner diameter position of the opening in direct contact with the pipeline is sealed and isolated with soft felt, polyethylene pads, soft brushes, and silicone strips.

[0069] 3. The bottom plate is sealed. When the hoisting equipment buckles the shed on the pipeline, the split isolation door is manually closed and locked by the operator. The lower part of the isolation door fits tightly with the bottom plate of the shed to prevent air leakage. When the bottom plate 6 touches the ground when the hoisting equipment lowers the shed, it will automatically close and lock to complete the bottom seal.

[0070] 4. The operation form in the sealed state. The operator monitors the internal construction status through the observation hole 12. If internal operation is required, the operator can reach into the interior through wearing rubber gloves 5 for simple handling. The ventilation opening 10 can be opened or closed as the situation requires.

[0071] This device can achieve intelligent and automated detection, mainly relying on:

[0072] 1. The infrared temperature detection system 16 inside the shed is calibrated regularly with a contact thermometer according to the relevant national standards, and can detect the temperature at the position of the sandblasting nozzle in real time.

[0073] 2. The humidity detection system 17 inside and outside the shed can detect the temperature values of the environment inside and outside the shed in real time, and synchronously upload the test results to the wireless operation handle 4 together with the infrared temperature detection system 16. Through comprehensive judgment, it can be known whether the construction environment will cause dew or frost formation at the nozzle.

[0074] 3. The visual recognition system 18 for the cleanliness of the steel pipe surface will intelligently determine the cleanliness level after the surface treatment of the nozzle by comprehensively comparing the high-resolution image information collected with the training results of the visual big data.

[0075] 4. The video acquisition system 19 is connected to the wireless operation handle 4 and the engineering construction information management system through WIFI wireless local area network technology, and can monitor the construction images inside the shed in real time.

[0076] The sandblasting and rust removal are carried out synchronously in two parts, namely the lower half and the upper half of the nozzle, including:

[0077] 1. Within the range of 180° of the lower half week, it is achieved by relying on the annular sandblasting gun.

[0078] 2. The upper half of the 180° range is achieved by using a mechanical arm sandblasting gun. The mechanical arm sandblasting gun 13 adopts a multi-stage supporting connecting rod structure, and cooperates with the universal joint 14 to freely control the position, sandblasting direction, and moving speed of the mobile spray gun 15 to achieve 180° sandblasting and rust removal of the upper half of the pipe mouth.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A sandblasting construction shed for oil and gas pipelines, characterized in that: include: A shed body, a sand pot (1), an air compressor (2), a dust collector (3), rubber gloves (5), a pair of bottom plates (6), a pair of annular sandblasting guns (8), a pair of isolation doors (9), a mechanical arm sandblasting gun access port (11), and a mechanical arm sandblasting gun (13). The sand pot (1), the air compressor (2), the dust collector (3), the rubber gloves (5), and the mechanical arm sandblasting gun access port (11) are all installed on the outer side wall of the shed body. The pair of bottom plates (6) are hinged to the bottom of the shed body. The pair of annular sandblasting guns (8) are installed on the pair of bottom plates (6) in a one-to-one correspondence. The pair of isolation doors (9) are installed at both ends of the shed body in a one-to-one correspondence. The mechanical arm sandblasting gun (13) is installed on the top inner wall of the shed body. The mechanical arm sandblasting gun (13) is connected to the mechanical arm sandblasting gun access port (11) through a pipeline.

2. The oil and gas pipeline sandblasting construction shed according to claim 1 is characterized in that: A working status detection mechanism is installed on the top of the work shed body.

3. The oil and gas pipeline sandblasting construction shed according to claim 2 is characterized in that: The working status detection mechanism comprises: an infrared temperature detection system (16), a humidity detection system (17), a steel pipe surface cleanliness visual recognition system (18), and a video acquisition system (19); the infrared temperature detection system (16), the humidity detection system (17), the steel pipe surface cleanliness visual recognition system (18), and the video acquisition system (19) are all directly facing the position of the pipe mouth construction.

4. The oil and gas pipeline sandblasting construction shed according to claim 3 is characterized in that: A wireless operating handle (4) is installed on the main body of the work shed; the mechanical arm sandblasting gun (13), the infrared temperature detection system (16), the humidity detection system (17) and the video acquisition system (19) are all connected to the wireless operating handle (4); the wireless operating handle (4) is connected to the engineering construction information management system via WIFI wireless LAN technology.

5. The oil and gas pipeline sandblasting construction shed according to claim 1, characterized in that: The sand tank (1) and the air compressor (2) are both connected to a pair of annular sandblasting guns (8) through pipelines; the dust collector (3) is connected to the interior of the shed body.

6. The oil and gas pipeline sandblasting construction shed according to claim 1, characterized in that: The mechanical arm sandblasting gun access port (11) is isolated by a sealing material, and the sealing material is one or more of a polyethylene strip, a PVC strip, a soft brush, an aerogel felt and a silica gel strip.

7. The oil and gas pipeline sandblasting construction shed according to claim 1, characterized in that: The isolation door (9) is a double-opening isolation door, and is provided with an opening adapted to the outer diameter of the pipeline to be constructed, and the inner diameter position of the opening is sealed and isolated by soft felt, polyethylene pad, soft brush or silicone strip.

8. The oil and gas pipeline sandblasting construction shed according to claim 1, characterized in that: An observation hole (12) and a vent (10) are installed on the outer wall of the shed body; the mechanical arm sandblasting gun (13) is installed at the central position of the top inner wall of the shed body; the sand tank (1) is provided with quartz sand; the air compressor (2) is an air compressor with an air tank; the dust collector (3) includes one or two of a bag dust collector, a cartridge dust collector, an electrostatic dust collector and an electric bag composite dust collector, which are used in series.

9. The oil and gas pipeline sandblasting construction shed according to claim 1, characterized in that: The annular sandblasting gun (8) comprises: a support base (7) and a plurality of fixed nozzles, the support base (7) being mounted on the bottom plate (6), the top of the support base (7) being provided with an arc structure adapted to the outer diameter of the pipeline to be constructed, the plurality of fixed nozzles being mounted on the arc structure, and the support base (7) being connected to the sand tank (1) and the air compressor (2) via a pipeline.

10. The oil and gas pipeline sandblasting construction shed according to claim 1, characterized in that: The robot arm sandblasting gun (13) comprises: a plurality of sections of supporting connecting rods, a plurality of universal joints (14) and a movable spray gun (15), wherein the plurality of sections of the supporting connecting rods are connected in sequence via the plurality of universal joints (14), the tops of the plurality of sections of the supporting connecting rods are connected to the robot arm sandblasting gun access port (11) via pipelines, and the movable spray gun (15) is installed at the bottoms of the plurality of sections of the supporting connecting rods.

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