Pipeline welding joint robotization internal isolation device
A technology for welding joints and pipes, which is applied in the direction of pipes/pipe joints/fittings, electric heating devices, pipeline protection, etc. It can solve the problems of unusable, no static mixer, no built-in distribution device, etc., to eliminate the impact and eliminate process continuity Effects of time and internal isolation quality
Pending Publication Date: 2022-04-05
A G 崔科
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Problems solved by technology
The device is not suitable for isolating defective sections of piping
[0008] 2) There is simply no effective way to control the mixing quality of the compound components in the device
[0009] 3) The invention does not have its own built-in dispensing device
[0010] 4) Since the unit has no temperature control, it cannot be used at temperatures other than those specified by the manufacturer for use with compounds
[0011] 5) Unable to control the thickness of the annulus cavity filled with compound
[0012] 6) Inability to control the quality of the compound filling the annular space
[0013] 7) Impossible to remove inferior compound from the circuit that feeds inferior compound into the annulus cavity
[0018] 1) No static mixer at all
Method used
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[0121] figure 1 A general view of the proposed device 1 with external connections is shown. Wheels, power cables and control cables are not shown in all figures in order to avoid the figure being too full. The proposed device is designed for robotic internal isolation of pipe welded joints. Device 1 ( figure 1 ) is equipped with: tube 2 for connection to the source of compressed air; elastic tube 3 for connection to the air pumping system; and elastic tube 4 for removal of inferior Compound and the product of cleaning the system after the process of filling the annulus with the compound.
[0122] figure 2 A general view of the proposed device 1 equipped with a vacuum trap 5 is shown. The vacuum trap 5 is connected to the device 1 through the tubes 3 and 4 through fittings 6 and 7 at one end of the vacuum trap 5 . The vacuum trap 5 has a fitting 8 mounted at the other end. The vacuum trap 5 is connected to a vacuum pump through a connector 8 and a tube 9 . The main pur...
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Abstract
The invention relates to a pipe structure which can be used for internal isolation of a welded joint between pipes with an internal protective coating. A device for internal isolation of a pipe weld joint comprises a sealing unit (10) comprising a cylindrical housing and a coaxially mounted cylindrical actuator designed to expand radially when an overpressure is generated within its cavity. A compound feeding unit (12), a compound dosing unit formed by a piston assembly (11) and a pneumatic automation unit (13) are located in the housing. And the dosage unit operation cavity of each compound component is connected with the compound feeding unit (12). The elastic actuator has a channel for feeding a compound into an annular space in the region of the weld joint, which channel is connected to the compound feeding unit and to a channel for discharging gas from the annular space. The pneumatic automation unit (13) is designed for controlling the operation of the dosing unit and the compound feeding unit (12) and for the function of generating excess air pressure in the actuator cavity of the sealing unit (10).
Description
technical field [0001] The present invention relates to pipeline construction and can be used for internal isolation of welded joints of pipelines having an internal protective coating. Background technique [0002] There is a device for implementing Chuiko's internal integral isolation method for welded pipe connections (RU2667856, published on September 24, 2018), which involves the coaxial installation of a steel protective sleeve inside the connecting pipe; after the pipe joint is welded, the The end annular gap between the protective sleeve and the connecting pipe is sealed so that an annular cavity is formed between the outer surface of the sleeve, the inner surface of the welded joint and the adjacent surface of the connecting pipe, and then the air is pumped out of the annular cavity, And filled with compounds. The device for sealing the end annulus is equipped with a power unit consisting of a cylindrical elastic actuator and a housing of elastic anti-stick materia...
Claims
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IPC IPC(8): F16L58/02F16L13/02B05C7/08F16L101/16
CPCF16L55/18F16L58/181F16L55/16455B05C7/08H05B2203/013H05B3/42F16L58/1009F16L13/0263B25J11/0075H05B3/40
Inventor A·G·崔科A·A·崔科
Owner A G 崔科