Tube bank hoisting device for heat exchange tube of radiator

Abstract

The utility model belongs to the technical field of hoisting devices, and discloses a tube bank hoisting device for a heat exchange tube of a radiator. The lifting device is mainly technically characterized by comprising a lifting rail and a lifting crown block, a lifting frame is arranged below the lifting crown block and comprises an end and two swing arms, the swing arms are movably connected with the end through first pin shafts, one swing arm is provided with an air cylinder seat, and the other swing arm is provided with an air cylinder. A cylinder seat is arranged on one swing arm, a cylinder is movably connected to the cylinder seat through a second pin shaft, a limiting column is arranged on the other swing arm, a lantern ring arranged on the limiting column in a sleeving mode is arranged at the front end of an ejector rod of the cylinder, and a plurality of lifting hooks are arranged below the swing arms. In the moving process, the position and the angle of the polytetrafluoroethylene tube relative to the heat exchange tube fixing frame are hardly changed, moving is more convenient, labor intensity is greatly reduced, production efficiency is high, stability performance is good, and accidents are not prone to happening.

Description

Technical Field

[0001] The utility model belongs to the technical field of hoisting devices, and in particular relates to a pipe hoisting device for heat exchange pipes of a radiator. Background Art

[0002] In the flue of power plants or other places with strong corrosiveness, in order to reduce the temperature of the flue gas in the flue and collect and reuse the heat, a heat exchanger is installed in the flue. The heat exchange core of the heat exchanger is a multi-row "U"-shaped heat exchange tube group. The heat exchange pipeline adopts corrosion-resistant and high-temperature resistant polytetrafluoroethylene tube. A heat exchange tube fixing frame with multiple through holes is set at one end of each row of heat exchange tube group. The processed heat exchange core needs to be lifted from the processing platform to the ground by multiple people, and the heat exchange core is pressure tested by the pressure test device, and then the heat exchange core is installed on the heat exchange frame. The above method has the following defects: first, because the polytetrafluoroethylene tube is relatively soft, in order to avoid mopping the floor when lifting it down from the processing platform, multiple people are required to lift it down from the processing platform, which has high labor intensity and low production efficiency; second, the "U"-shaped heat exchange tube group after the pressure test needs to be manually installed on the heat exchange rack with the heat exchange core. The "U"-shaped heat exchange tube group near the bottom of the heat exchange rack is easy to install, but the "U"-shaped heat exchange tube group near the top of the heat exchange rack is difficult to install. It is necessary for personnel to stand on a bench or other steps to install it. The staff is prone to fall and the safety performance is poor.

[0003] In order to overcome the above defects, people use ordinary overhead crane to hoist from the processing platform to the ground, and then hoist it to the heat exchange rack after pressure testing. However, due to the soft texture of the polytetrafluoroethylene tube, the polytetrafluoroethylene tube is easy to roll over during the hoisting process, causing the polytetrafluoroethylene tube to be in chaos, which is not conducive to pressure testing and installation. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a radiator heat exchange tube row pipe hoisting device which has low labor intensity, high production efficiency, and is easy to use and prevents the heat exchange tube from rolling during the hoisting process.

[0005] In order to solve the above problems, the technical solution adopted by the utility model of the radiator heat exchange tube row pipe lifting device is: it includes a lifting rail and a lifting crane, a hanger is arranged under the lifting crane, the hanger includes an end and two swing arms, the swing arm is movably connected to the end through a first pin shaft, a cylinder seat is arranged on one of the swing arms, a cylinder is movably connected to the cylinder seat through a second pin shaft, a limiting column is arranged on the other swing arm, a ring sleeved on the limiting column is arranged at the front end of the cylinder push rod, and a plurality of hooks are arranged under the swing arm.

[0006] Its additional technical features are:

[0007] The hook comprises a lifting rope and a horizontal lifting rod, and hooks are arranged at both ends of the horizontal lifting rod.

[0008] Compared with the prior art, the pipe lifting device for radiator heat exchange tubes provided by the utility model has the following advantages: first, since it includes a lifting rail and a lifting crane, a hanger is arranged below the lifting crane, the hanger includes an end and two swing arms, the swing arm and the end are movably connected via a first pin shaft, a cylinder seat is arranged on one of the swing arms, a cylinder is movably connected to the cylinder seat via a second pin shaft, a limiting column is arranged on the other swing arm, a collar sleeved on the limiting column is arranged at the front end of the cylinder's push rod, a plurality of hooks are arranged below the swing arm, the hanger is moved to above the processing platform by moving the lifting crane, the directions of the two swing arms are adjusted by extending or retracting the cylinder's push rod so that the swing arms are located above the corresponding heat exchange tube group, the hooks are hung on the corresponding heat exchange tube fixing frame, and the heat exchange tube fixing frame is fixed. The polytetrafluoroethylene tube is lifted from the processing platform, and the polytetrafluoroethylene tube with the heat exchange tube fixing frame is moved to the side of the pressure testing equipment by moving the lifting crane, and the polytetrafluoroethylene tube is pressure tested by the pressure testing equipment. After the pressure test is completed, the polytetrafluoroethylene tube with the heat exchange tube fixing frame is moved to the heat exchange frame for installation by moving the lifting crane. During the movement, the position and angle of the polytetrafluoroethylene tube relative to the heat exchange tube fixing frame hardly change, the movement is more convenient, the labor intensity is greatly reduced, the production efficiency is high, and the stability is good, and accidents are not prone to occur; secondly, since the hook includes a lifting rope and a horizontal hanging rod, hooks are provided at both ends of the horizontal hanging rod, and the two hooks are hung on the same heat exchange tube fixing frame, the heat exchange tube fixing frame is always in a horizontal state, the stability is good, and the position and angle of the polytetrafluoroethylene tube relative to the heat exchange tube fixing frame hardly change. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of a polytetrafluoroethylene tube group with a heat exchange tube fixing frame;

[0010] Figure 2 A schematic diagram of the structure of a pipe hoisting device for heat exchange pipes of a radiator according to the utility model;

[0011] Figure 3 A schematic diagram of the structure of a pipe hanging device for a radiator heat exchange tube, each hook having two hooks. DETAILED DESCRIPTION

[0012] The structure and use principle of the pipe hanging device for heat exchange pipes of the radiator of the utility model are further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0013] like Figure 1As shown, it is a schematic diagram of the structure of a polytetrafluoroethylene tube group with a heat exchange tube fixing frame; a heat exchange tube fixing frame 3 with a plurality of through holes 2 is arranged at a distance from one end in each row of heat exchange tube groups 1, and polytetrafluoroethylene tubes 4 pass through the heat exchange tube fixing frame 3. The polytetrafluoroethylene tubes 4 are "U" shaped.

[0014] As shown Figure 2 and Figure 3 As shown, the structure diagram of the radiator heat exchange tube arrangement lifting device of the utility model comprises a lifting rail 5 and a lifting crane 6, a hanger 7 is arranged below the lifting crane 6, the hanger 7 comprises an end 71 and two swing arms 72, the swing arms 72 are movably connected with the end 71 through a first pin shaft 73, a cylinder seat 74 is arranged on one of the swing arms 72, a cylinder 76 is movably connected to the cylinder seat 74 through a second pin shaft 75, a limiting column 77 is arranged on the other swing arm 72, and a collar 79 sleeved on the limiting column 77 is arranged at the front end of the top rod 78 of the cylinder 76. A plurality of hooks 8 are arranged below the swing arm 72.

[0015] The hanger 7 is moved to the top of the processing platform by moving the lifting crane 6, and the directions of the two swing arms 72 are adjusted by extending or retracting the top rod 78 of the cylinder 76 so that the swing arms 72 are located above the corresponding heat exchange tube group, and the hook 8 is hung on the corresponding heat exchange tube fixing frame, and the polytetrafluoroethylene tube with the heat exchange tube fixing frame is lifted from the processing platform, and the polytetrafluoroethylene tube with the heat exchange tube fixing frame is moved to the side of the pressure testing equipment by moving the lifting crane, and the polytetrafluoroethylene tube is pressure tested by the pressure testing equipment. After the pressure test is completed, the polytetrafluoroethylene tube with the heat exchange tube fixing frame is moved to the heat exchange frame for installation by moving the lifting crane. During the movement, the position and angle of the polytetrafluoroethylene tube relative to the heat exchange tube fixing frame hardly change, the movement is more convenient, the labor intensity is greatly reduced, the production efficiency is high, and the stability is good, and accidents are not easy to occur.

[0016] like Figure 2 As shown, the hook 8 includes a hanging rope 81 and a horizontal hanging rod 82, and hooks 83 are arranged at both ends of the horizontal hanging rod. The two hooks 83 are hung on the same heat exchange tube fixing frame. The heat exchange tube fixing frame is always in a horizontal state with good stability. The position and angle of the polytetrafluoroethylene tube relative to the heat exchange tube fixing frame hardly change.

[0017] The protection scope of the present invention is not limited to the above-mentioned embodiments. As long as the structure is the same or similar to the structure of the pipe hanging device for the heat exchange tube of the radiator of the present invention, it falls within the protection scope of the present invention.

Claims

1. A pipe hoisting device for heat exchange pipes of a radiator, comprising a hoisting track and a hoisting crane, characterized in that: A hanger is arranged below the lifting crane, and the hanger includes an end and two swing arms, the swing arms are movably connected to the end via a first pin shaft, a cylinder seat is arranged on one of the swing arms, a cylinder is movably connected to the cylinder seat via a second pin shaft, a limiting column is arranged on the other swing arm, a ring sleeved on the limiting column is arranged at the front end of the cylinder's push rod, and a plurality of hooks are arranged below the swing arm.

2. The radiator heat exchange tube hanging device according to claim 1, characterized in that: The hook comprises a lifting rope and a horizontal lifting rod, and hooks are arranged at both ends of the horizontal lifting rod.

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