Auxiliary tool for hoisting heating surface tube bundle

Abstract

The utility model relates to the technical field of heating surface hoisting, and discloses an auxiliary tool for hoisting a heating surface tube row, which comprises hook connecting pairs and a water-cooled wall tube row, and the hook connecting pairs are respectively arranged on two sides of the bottom end of the water-cooled wall tube row. When the auxiliary tool for hoisting the heating surface tube bundle is used, a hoisting point twisted rope at one end of a water cooling wall tube bundle combined on the ground is hung on a crane hook, two groups of hooks are hung and fixed at fins at the tail part of the other section of tube bundle and are connected with an auxiliary pulley block, and then the crane is controlled to slowly hook; the first pulley and the second pulley on the two groups of hook connecting pairs at the tail part of the water-cooled wall tube bank are stressed in contact with the ground and slowly roll towards the lower part of the lifting hook, the two groups of hook connecting pairs can be disassembled after the water-cooled wall tube bank is completely vertical to the ground and is separated from the ground, and finally, the water-cooled wall tube bank is hooked and lifted to a heating surface mounting position for mounting. The problem that friction damage is generated between the bottom end and the ground when the heating surface water wall tube row is hoisted is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating surface hoisting, in particular to an auxiliary tool for hoisting a heating surface pipe row. Background Art

[0002] Boilers are essential components of thermal power generation, and heating surfaces are key components of boilers. These heating surfaces include the water wall, superheater, reheater, and economizer. The water wall is the primary heat-receiving part of the boiler, consisting of several rows of steel pipes distributed around the boiler furnace. Water or steam flows within it, and the outside world receives heat from the furnace flame. It primarily absorbs radiant heat from the high-temperature combustion products in the furnace, allowing the working fluid to rise and evaporate. The superheater, also known as a steam superheater, is the component in the boiler that further heats the steam from its saturation temperature to the superheated temperature. The reheater, essentially a steam superheater, further heats the low-pressure steam that has already performed work to a specific temperature. The reheater further improves the thermal efficiency of the power plant cycle and keeps the steam temperature at the final stage of the turbine blades within an acceptable range. An economizer is a device installed at the bottom of the boiler's tail flue to recover waste heat from exhaust gas. It heats the boiler feed water to saturated water at drum pressure. By absorbing heat from the high-temperature flue gas, it reduces the exhaust temperature, saving energy and improving efficiency. The heating surface is typically assembled and inspected on the ground before being hoisted into place. Therefore, hoisting the heating surface is extremely critical, ensuring that the surface itself is not damaged during the hoisting process. Hoisting the heating surface directly affects construction safety, quality, and progress.

[0003] After the heating surface water-cooled wall tube row is assembled on the ground, since the heating surface water-cooled wall tube row occupies a large area, the bottom end of the heating surface water-cooled wall tube row will inevitably rub against the ground during the hoisting process, thereby causing damage to the heating surface of the heating surface water-cooled wall tube row. Therefore, it is necessary to use auxiliary tooling for hoisting the heating surface water-cooled wall tube row to assist in the hoisting of the heating surface water-cooled wall tube row.

[0004] Now, a new auxiliary tooling for heating surface tube row hoisting is proposed to solve the above-mentioned shortcomings. Utility Model Content

[0005] The purpose of the utility model is to provide an auxiliary tool for hoisting the heating surface tube row to solve the problem of friction damage between the bottom end and the ground when hoisting the heating surface water-cooled wall tube row proposed in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an auxiliary tooling for hoisting a heated surface tube row, comprising a hook connection pair and a water-cooled wall tube row, a hook connection pair being respectively provided on both sides of the bottom end of the water-cooled wall tube row, a first bearing inner block being respectively fixed inside the bottom ends of both sides of the hook connection pair, a first pin being passed through the interior of the bottom end of the hook connection pair, and a first pulley being fixed to the outside of the first pin, a fixing frame being welded and fixed to the bottom of the rear end of the hook connection pair, and second bearing inner blocks being respectively fixed inside the two sides of the fixing frame, a second pin being passed through the interior of the fixing frame, and a second pulley being fixed to the outside of the second pin.

[0007] Furthermore, both sides of the first pin shaft respectively pass through the interior of the first bearing inner stopper, and both sides of the second pin shaft respectively pass through the interior of the second bearing inner stopper.

[0008] Furthermore, the hook connection pair passes through the interior of the water-cooled wall tube row, and the hook connection pair, the first pulley and the second pulley are symmetrically arranged with respect to a vertical center line of the water-cooled wall tube row.

[0009] Preferably, a pressure plate is provided at the top of the hook connection pair, a threaded hole is provided at the top of the front end of the hook connection pair, and a rotating rod is rotatably connected to the inside of the threaded hole, and a rotating handle is fixed to the front end of the rotating rod.

[0010] Furthermore, the rear end of the rotating rod passes through the interior of the threaded hole and is movably connected to the front end of the pressing plate.

[0011] Furthermore, the outside of the rotating rod is provided with an external thread, and the inside of the threaded hole is provided with an internal thread that matches the external thread.

[0012] Preferably, a connecting plate is provided at the front end of the hook connecting pair, and reserved holes are respectively provided at the top and bottom of the front end of the connecting plate, mounting bolts are inserted into the inside of the reserved holes, and connecting gaskets are sleeved on the outside of the mounting bolts, a second screw hole is provided at the bottom of the front end of the hook connecting pair, and a first screw hole is provided at the top of the front end of the hook connecting pair.

[0013] Furthermore, the reserved hole passes through the interior of the connecting plate, and the rear end of the mounting bolt passes through the interior of the connecting plate and is rotatably connected to the interiors of the first screw hole and the second screw hole respectively.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: the auxiliary tooling for lifting the heating surface tube bank not only facilitates the sliding auxiliary lifting of the heating surface tube bank and facilitates the auxiliary fixing of the device on the heating surface tube bank, but also facilitates the structural reinforcement of the auxiliary tooling;

[0015] (1) By setting a hook connection pair, a first pulley, a fixing frame, a second pulley, a second bearing inner block, a second pin shaft, a first bearing inner block and a first pin shaft, and using an auxiliary tool to assist in lifting the heated surface tube row, the water-cooled wall tube row assembled on the ground is hung on the crane hook at one end of the lifting point rope, and two sets of hook connection pair pulley groups are hung and fixed at the tail fin of the other section of the tube row. Then, the crane is controlled to slowly lift the hook, so that the first pulley and the second pulley on the two sets of hook connection pairs at the tail of the water-cooled wall tube row touch the ground to bear the force, and slowly roll to the bottom of the hook. After the water-cooled wall tube row is completely perpendicular to the ground and detached from the ground, the two sets of hook connection pairs can be removed, and finally the water-cooled wall tube row is hooked and lifted to the installation position of the heated surface for installation. By setting the two sets of sliding components of the first pulley and the second pulley, the water-cooled wall tube row can be better protected from sliding when it is lifted;

[0016] (2) By providing a hook connection pair, a rotating handle, a rotating rod, a threaded hole and a pressing plate, during the use of the auxiliary tooling, after the hook connection pair is hung on the tail end of the water-cooled wall tube row, the rotating handle can be rotated to drive the rotating rod to rotate and drive the pressing plate to move back to the front end of the water-cooled wall tube row, thereby facilitating auxiliary fixing of the device and improving stability during use;

[0017] (3) By providing a hook connection pair, a connection plate, a mounting bolt, a connection gasket, a reserved hole, a first screw hole, and a second screw hole, when the auxiliary tooling is used, the connection plate provided can be passed through the reserved holes inside the front end of the hook connection pair using two sets of mounting bolts and correspondingly screwed into the first screw hole and the second screw hole to be fixed at the front end of the hook connection pair. The provided connection plate can be used to auxiliary strengthen the structure of the hook connection pair, thereby improving the bending and fracture resistance of the hook connection pair when it is supported. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0019] Figure 2 This is a side view of the hook connection structure of the present invention;

[0020] Figure 3 This is an enlarged side view of the fixing frame of the present invention;

[0021] Figure 4 This is a schematic diagram of the enlarged front view of the hook connection pair of the present invention;

[0022] Figure 5 It is a rear-view enlarged structural diagram of the hook connection pair of the present invention.

[0023] In the figure: 1. Hook connection pair; 2. Water-cooled wall tube row; 3. First pulley; 4. Connecting plate; 5. Mounting bolt; 6. Turning handle; 7. Turning rod; 8. Threaded hole; 9. Pressing plate; 10. Fixing frame; 11. Second pulley; 12. Second bearing inner stop; 13. Second pin; 14. First bearing inner stop; 15. First pin; 16. First screw hole; 17. Second screw hole; 18. Connecting gasket; 19. Reserved hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1: Please refer to Figure 1-5 , an auxiliary tooling for hoisting a heating surface tube row, comprising a hook connection pair 1 and a water-cooled wall tube row 2, wherein the hook connection pair 1 is respectively provided on both sides of the bottom end of the water-cooled wall tube row 2, and the inside of the bottom ends of both sides of the hook connection pair 1 are respectively fixed with a first bearing inner block 14, a first pin 15 is provided through the inside of the bottom end of the hook connection pair 1, and a first pulley 3 is fixed to the outside of the first pin 15, a fixing frame 10 is welded and fixed to the bottom of the rear end of the hook connection pair 1, and the insides of both sides of the fixing frame 10 are respectively fixed with a second bearing inner block 12, a second pin 13 is provided through the inside of the fixing frame 10, and a second pulley 11 is fixed to the outside of the second pin 13;

[0026] Both sides of the first pin 15 respectively penetrate the interior of the first bearing inner block 14, and both sides of the second pin 13 respectively penetrate the interior of the second bearing inner block 12. The hook connection pair 1 penetrates the interior of the water-cooled wall tube row 2. The hook connection pair 1, the first pulley 3, and the second pulley 11 are symmetrically arranged about the vertical center line of the water-cooled wall tube row 2.

[0027] Specifically, if Figure 1-Figure 5 As shown, the lifting rope at one end of the water-cooled wall tube row 2 assembled on the ground is hung on the crane hook, and two sets of hook connection pairs 1 pulley groups are fixed at the tail fin of the other section of the tube row. Then, the crane is controlled to slowly lift the hook, so that the first pulley 3 and the second pulley 11 on the two sets of hook connection pairs 1 at the tail of the water-cooled wall tube row 2 touch the ground to bear the force, and slowly roll to the bottom of the hook. After the water-cooled wall tube row 2 is completely perpendicular to the ground and detached from the ground, the two sets of hook connection pairs 1 can be removed, and finally the water-cooled wall tube row 2 can be lifted by the hook and hoisted to the heating surface installation position for installation. By setting the two sets of sliding components of the first pulley 3 and the second pulley 11, the water-cooled wall tube row 2 can be better protected from sliding when lifting.

[0028] Example 2: A pressure plate 9 is provided at the top of the hook connection pair 1, a threaded hole 8 is provided at the top of the front end of the hook connection pair 1, and a rotating rod 7 is rotatably connected to the inside of the threaded hole 8. A rotating handle 6 is fixed to the front end of the rotating rod 7. The rear end of the rotating rod 7 passes through the inside of the threaded hole 8 and is movably connected to the front end of the pressure plate 9. The outside of the rotating rod 7 is provided with an external thread, and the inside of the threaded hole 8 is provided with an internal thread that matches the external thread.

[0029] Specifically, if Figures 1-4 As shown, after the hook connection pair 1 is hung on the tail of the water-cooled wall tube row 2, the handle 6 can be rotated to drive the rotating rod 7 to rotate and drive the pressure plate 9 to move backward to abut against the front end of the water-cooled wall tube row 2, which is convenient for auxiliary fixation of the device and improves stability during use.

[0030] Example 3: The front end of the hook connection pair 1 is provided with a connecting plate 4, and the top and bottom of the front end of the connecting plate 4 are respectively provided with reserved holes 19, the inside of the reserved hole 19 is inserted with a mounting bolt 5, and the outside of the mounting bolt 5 is sleeved with a connecting gasket 18, the bottom of the front end of the hook connection pair 1 is provided with a second screw hole 17, the top of the front end of the hook connection pair 1 is provided with a first screw hole 16, the reserved hole 19 passes through the interior of the connecting plate 4, and the rear end of the mounting bolt 5 passes through the interior of the connecting plate 4 and is rotatably connected to the inside of the first screw hole 16 and the second screw hole 17 respectively;

[0031] Specifically, if Figure 1 、 Figure 3 and Figure 4 As shown, the connecting plate 4 provided can be passed through the internal reserved holes 19 at the front end of the hook connecting pair 1 using two sets of mounting bolts 5 and correspondingly screwed into the first screw hole 16 and the second screw hole 17 to be fixed at the front end of the hook connecting pair 1. The structure of the hook connecting pair 1 can be auxiliary strengthened by the provided connecting plate 4, thereby improving the bending and fracture resistance of the hook connecting pair 1 during support use.

[0032] Working principle: When the auxiliary tooling of the utility model assists in the lifting of the heating surface tube row, the water-cooled wall tube row 2 assembled on the ground is hung on the crane hook at one end of the lifting point rope, and the other section of the tube row tail fin is hung and fixed with two sets of hook connection pair 1 pulley groups, and then the crane is controlled to slowly lift the hook, so that the first pulley 3 and the second pulley 11 on the two sets of hook connection pairs 1 at the tail of the water-cooled wall tube row 2 touch the ground to bear the force, and slowly roll to the bottom of the hook. After the water-cooled wall tube row 2 is completely perpendicular to the ground and off the ground, the two sets of hook connection pairs 1 can be removed, and finally the water-cooled wall tube row 2 is hooked and lifted to the installation position of the heating surface for installation, and then it can be installed. After the hook connection pair 1 is hung on the tail of the water-cooled wall tube row 2, the handle 6 can be rotated to drive the rotating rod 7 to rotate and drive the pressure plate 9 to move backward to the front end of the water-cooled wall tube row 2 to assist in fixing the device. When the auxiliary tooling is used, the connection plate 4 provided at the front end of the hook connection pair 1 can be passed through the internal reserved holes 19 using two sets of mounting bolts 5 and correspondingly screwed into the first screw hole 16 and the second screw hole 17 to be fixed at the front end of the hook connection pair 1. The structure of the hook connection pair 1 can be auxiliary strengthened by the provided connection plate 4, thereby improving the bending and fracture resistance of the hook connection pair 1 during support use.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An auxiliary tool for hoisting a heating surface tube bank, comprising a hook connection pair (1) and a water-cooled wall tube bank (2), characterized in that: A hook connection pair (1) is provided on both sides of the bottom end of the water-cooled wall tube row (2), and a first bearing inner block (14) is fixed inside the bottom ends of both sides of the hook connection pair (1). A first pin shaft (15) is provided inside the bottom end of the hook connection pair (1), and a first pulley (3) is fixed outside the first pin shaft (15). A fixing frame (10) is welded and fixed to the bottom of the rear end of the hook connection pair (1), and second bearing inner blocks (12) are fixed inside both sides of the fixing frame (10), a second pin shaft (13) is provided inside the fixing frame (10), and a second pulley (11) is fixed outside the second pin shaft (13).

2. The auxiliary tool for hoisting the heating surface tube bank according to claim 1, characterized in that: Both sides of the first pin shaft (15) respectively penetrate the interior of the first bearing inner stop (14), and both sides of the second pin shaft (13) respectively penetrate the interior of the second bearing inner stop (12).

3. The auxiliary tool for hoisting the heating surface tube bank according to claim 1, characterized in that: The hook connection pair (1) penetrates the interior of the water-cooled wall tube row (2), and the hook connection pair (1), the first pulley (3) and the second pulley (11) are symmetrically arranged about the vertical center line of the water-cooled wall tube row (2).

4. The auxiliary tool for hoisting the heating surface tube bank according to claim 1, characterized in that: A pressure plate (9) is provided at the top end of the hook connection pair (1), a threaded hole (8) is provided at the top end of the front end of the hook connection pair (1), and a rotating rod (7) is rotatably connected to the inside of the threaded hole (8), and a rotating handle (6) is fixed to the front end of the rotating rod (7).

5. The auxiliary tool for hoisting the heating surface tube bank according to claim 4, characterized in that: The rear end of the rotating rod (7) passes through the interior of the threaded hole (8) and is movably connected to the front end of the pressing plate (9).

6. The auxiliary tool for hoisting the heating surface tube bank according to claim 4, characterized in that: The outside of the rotating rod (7) is provided with an external thread, and the inside of the threaded hole (8) is provided with an internal thread that matches the external thread.

7. The auxiliary tool for hoisting the heating surface tube bank according to claim 1, characterized in that: The front end of the hook connection pair (1) is provided with a connecting plate (4), and the top and bottom of the front end of the connecting plate (4) are respectively provided with reserved holes (19), the inside of the reserved hole (19) is plugged with a mounting bolt (5), and the outside of the mounting bolt (5) is sleeved with a connecting gasket (18), the bottom of the front end of the hook connection pair (1) is provided with a second screw hole (17), and the top of the front end of the hook connection pair (1) is provided with a first screw hole (16).

8. The auxiliary tool for hoisting the heating surface tube bank according to claim 7, characterized in that: The reserved hole (19) passes through the interior of the connecting plate (4), and the rear end of the mounting bolt (5) passes through the interior of the connecting plate (4) and is rotatably connected to the interior of the first screw hole (16) and the second screw hole (17).

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