Temporary trepanning device for hydraulic engineering pipeline

Abstract

The utility model discloses a hydraulic engineering pipeline temporary trepanning device which comprises a main pipe, welding pipes are installed on the two sides of the top face of a main pipe damage point in a welding mode, the top faces of the welding pipes are connected with branch pipes in a pre-assembling mode through flanges, the branch pipes are of a U-shaped structure on the whole, and the tops of vertical pipes on the two sides of the branch pipes are higher than horizontal pipes. The hydraulic engineering pipeline temporary trepanning device solves the problems that when a pipeline is temporarily trepanned at present, a valve is in an open state during installation, the valve is still in a water burst state when a hole is broken, and even if the dissociation speed is high, part of the water burst state is still caused.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy pipeline equipment, in particular to a temporary hole-opening device for water conservancy engineering pipelines. Background Art

[0002] Temporary opening devices for pipes in water conservancy projects are usually used to repair, modify or repair existing pipelines without interrupting flow. This device can safely open holes or seal pipes without interrupting flow. This technology is considered safe, environmentally friendly, economical and efficient because it allows necessary maintenance and modifications to be made without stopping the operation of the pipeline, thereby reducing the inconvenience and economic losses caused by water or gas outages. In summary, the temporary opening device for pipes in water conservancy projects is a professional equipment that makes it possible to maintain and modify pipelines without interrupting flow, while ensuring the safety and efficiency of operations.

[0003] Currently, when temporarily opening a hole in a pipeline, it is necessary to first install connecting pipes above both sides of the damaged pipeline. The installation method is welding or clamp sealing. A valve is installed on the connecting pipe, and the drill bit passes through the valve port and the connecting pipe in turn to open a hole in the pipeline. After the hole is opened, a branch pipe is installed on the top of the connecting pipe. Although this method can achieve the effect of temporarily opening a hole, there is also the problem that the valve is in an open state during installation, and water will still gushed out when the hole is broken. Even if the extraction speed is fast, some water will still gushed out.

[0004] Therefore, it is necessary to provide a temporary hole opening device for water conservancy project pipelines to solve the above technical problems. Utility Model Content

[0005] In view of the above situation, in order to overcome the defects of the existing technology, the utility model provides a temporary hole opening device for water conservancy project pipelines to solve the current problem that when the pipeline is temporarily opened, the valve is in an open state during installation, and the water will still be in a gushing state when the hole is broken. Even if the opening and extraction speed is fast, it will still cause partial water gushing.

[0006] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0007] A temporary opening device for a water conservancy project pipeline comprises: a main pipe;

[0008] Welded pipes are installed on both sides of the top surface of the damaged point of the main pipe by welding. The top surface of the welded pipe is pre-assembled and connected to the branch pipe through a flange. The branch pipe is a U-shaped structure as a whole. The top of the vertical pipes on both sides is higher than the horizontal pipe. The top of the vertical pipe is open, and a top cap is screwed into the top. The inner diameter of the vertical pipes on both sides of the branch pipe is larger than the diameter of the drilling mechanism. The main valve is installed at the vertical pipe perpendicular to the branch pipe and below the horizontal pipe.

[0009] In one embodiment, a drain port is installed at the side end of the welded pipe, and a shut-off valve is installed in the drain port.

[0010] In one embodiment, when the drilling mechanism is inserted into the branch pipe, the top is connected to the top opening of the vertical pipe of the branch pipe through the bearing seat.

[0011] In one embodiment, the drilling mechanism consists of a drill rod, a drill bit, a magnetic sheet, and an adsorption groove. The drill rod is connected to the top surface of the drill bit through a locking buckle. The inner circumference of the drill bit is installed with a magnetic sheet by adhesion. The magnetic sheet has an arc surface structure, and its inner circumference is provided with an adsorption groove. There are multiple adsorption grooves, which are arranged in an array.

[0012] In one embodiment, a magnetic block is adhered and installed at the center of the inner top surface of the drill bit. The magnetic block is a cylindrical structure with a gap between it and the bottom surface of the drill bit. The height of the gap is greater than the thickness of the hole wall at the opening.

[0013] The beneficial effects of the utility model are as follows:

[0014] (1) The utility model pre-installs flanges on the welding pipe and the branch pipe, welds the bottom of the welding pipe to the opening, unscrews the top caps of the branch pipes in sequence, and inserts the drilling mechanism into the vertical pipe of the branch pipe until the bottom of the drilling mechanism abuts against the opening of the main pipe. This allows holes to be drilled on both sides of the damaged part of the pipeline at the same time, thereby improving maintenance efficiency. After drilling is completed, the main valve is closed, the top cap seal is reset, and the main valve is opened again, so that the branch pipe forms a temporary diversion section, which is convenient for cutting and repairing the damaged part of the main pipe.

[0015] (2) The utility model is provided with a shut-off valve in the drain port. When drilling, the drain port is connected to an external pumping device to timely remove the escaping water. When the drill bit opens the hole, the dust in the pipeline is adsorbed by the magnetic sheet. After the drilling is completed, the magnetic sheet that is adhered and installed is removed to complete the debris collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structure diagram of the utility model;

[0017] Figure 2 This is a front view detail diagram of the utility model;

[0018] Figure 3 This is a detailed diagram of the branch pipe of the utility model;

[0019] Figure 4 This is a detailed diagram of the hole-opening mechanism of the utility model.

[0020] Among them, the names corresponding to the figure marks are: main pipe 1, branch pipe 2, welding pipe 3, drain port 31, top cap 4, drilling mechanism 5, drill rod 51, drill bit 52, magnetic sheet 53, adsorption groove 54, magnetic block 55, main valve 6. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. The present invention includes but is not limited to the following embodiments.

[0022] like Figure 1-Figure 2 As shown, the utility model provides a temporary hole-opening device for a water conservancy project pipeline, comprising: a main pipe 1, a branch pipe 2, a welded pipe 3, a top cap 4, a drilling mechanism 5, and a main valve 6;

[0023] like Figure 1-Figure 2 As shown, welding pipes 3 are installed on both sides of the top surface of the damaged point of the main pipe 1 by welding. The top surface of the welding pipe 3 is pre-assembled and connected to the branch pipe 2 through a flange. The branch pipe 2 is a U-shaped structure as a whole. The top of the vertical pipes on both sides is higher than the horizontal pipe. The top of the vertical pipe is open, and a top cap 4 is screwed into the top. The inner diameter of the vertical pipes on both sides of the branch pipe 2 is larger than the diameter of the drilling mechanism 5. It is a vertical pipe perpendicular to the branch pipe 2. A main valve 6 is installed below the horizontal pipe. During operation, by pre-flange-mounting the welding pipe 3 and the branch pipe 2, welding the bottom of the welding pipe 3 to the opening, unscrewing the top cap 4 of the branch pipe 2 in sequence, and inserting the drilling mechanism 5 into the vertical pipe of the branch pipe 3 until the bottom of the drilling mechanism 5 abuts against the opening of the main pipe 1, holes can be drilled on both sides of the damaged part of the pipeline 1 at the same time, improving maintenance efficiency. After drilling is completed, the main valve 6 is closed, and after the top cap 4 is sealed and restored, the main valve 6 is opened again to form a temporary diversion section of the branch pipe 2, which is convenient for cutting and repairing the damaged part of the main pipe 1.

[0024] Preferably, in one embodiment, Figure 1-Figure 2 As shown, a drain port 31 is installed at the side end of the welded pipe 3. A shut-off valve is installed in the drain port 31. When drilling, the drain port 31 is connected to an external pumping device to pump out the escaping water in time.

[0025] Preferably, in one embodiment, when the drilling mechanism 5 is inserted into the branch pipe 2, the top is connected to the top opening of the vertical pipe of the branch pipe 2 through a bearing seat, the purpose of which is to provide a limit when the drilling mechanism 5 rotates.

[0026] Preferably, in one embodiment, Figure 4As shown, the drilling mechanism 5 consists of a drill rod 51, a drill bit 52, a magnetic piece 53, and an adsorption groove 54. The drill rod 51 is connected to the top surface of the drill bit 52 by a locking buckle. The inner circumference of the drill bit 52 is installed with a magnetic piece 53 by adhesion. The magnetic piece 52 has an arc surface structure, and its inner circumference is provided with an adsorption groove 54. There are multiple adsorption grooves 54, which are arranged in an array. When the drill bit 52 opens a hole, the powder of the pipeline 1 is adsorbed by the magnetic piece 53. After the drilling is completed, the adhered magnetic piece 53 is removed to complete the debris collection.

[0027] Preferably, in one embodiment, Figure 4 As shown, a magnetic block 55 is adhered and installed at the center of the inner top surface of the drill bit 52. The magnetic block 55 is a cylindrical structure with a gap between it and the bottom surface of the drill bit 52. The height of the gap is greater than the thickness of the hole wall at the opening. Its purpose is to be sucked out by the upper magnetic block after the hole wall is opened.

[0028] Working principle of this utility model:

[0029] During operation, by pre-flange-installing the welding pipe 3 and the branch pipe 2, welding the bottom of the welding pipe 3 to the opening, unscrewing the top cap 4 of the branch pipe 2 in sequence, and inserting the drilling mechanism 5 into the vertical pipe of the branch pipe 3 until the bottom of the drilling mechanism 5 abuts against the opening of the main pipe 1, holes can be opened on both sides of the damaged part of the pipeline 1 at the same time, improving maintenance efficiency. After drilling is completed, the main valve 6 is closed, and after the top cap 4 is sealed and reset, the main valve 6 is opened again to form a temporary diversion section of the branch pipe 2, which is convenient for cutting and repairing the damaged part of the main pipe 1.

[0030] The above embodiment is only one of the preferred implementation methods of the present invention and should not be used to limit the scope of protection of the present invention. Any changes or modifications that have no substantive meaning made to the main design concept and spirit of the present invention, as long as the technical problems they solve are still consistent with the present invention, should be included in the scope of protection of the present invention.

Claims

1. A temporary hole opening device for a water conservancy project pipeline, characterized in that: include: director; Welded pipes are installed on both sides of the top surface of the damaged point of the main pipe by welding. The top surface of the welded pipe is pre-assembled and connected to the branch pipe through a flange. The branch pipe is a U-shaped structure as a whole. The top of the vertical pipes on both sides is higher than the horizontal pipe. The top of the vertical pipe is open, and a top cap is screwed into the top. The inner diameter of the vertical pipes on both sides of the branch pipe is larger than the diameter of the drilling mechanism. The main valve is installed at the vertical pipe perpendicular to the branch pipe and below the horizontal pipe.

2. A temporary hole opening device for a water conservancy project pipeline according to claim 1, characterized in that: A drain port is installed at the side end of the welded pipe, and a shut-off valve is installed in the drain port.

3. A temporary hole opening device for a water conservancy project pipeline according to claim 1, characterized in that: When the drilling mechanism is inserted into the branch pipe, the top is connected to the vertical pipe top opening of the branch pipe through the bearing seat.

4. A temporary hole opening device for a water conservancy project pipeline according to claim 3, characterized in that: The drilling mechanism consists of a drill rod, a drill bit, a magnetic sheet, and an adsorption groove. The drill rod is connected to the top surface of the drill bit through a locking buckle. The inner circumference of the drill bit is installed with a magnetic sheet by adhesion. The magnetic sheet has an arc surface structure, and its inner circumference is provided with an adsorption groove. There are multiple adsorption grooves, which are arranged in an array.

5. A temporary hole opening device for a water conservancy project pipeline according to claim 4, characterized in that: A magnetic block is adhered and installed at the center of the inner top surface of the drill bit. The magnetic block is a cylindrical structure with a gap between it and the bottom surface of the drill bit. The height of the gap is greater than the thickness of the hole wall at the opening.

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