WO2019153575A1

WO2019153575A1 - Simple disassembling/assembling apparatus for boom flange connection device

Info

Publication number: WO2019153575A1
Application number: PCT/CN2018/087908
Authority: WO
Inventors: 徐桂根
Original assignee: 淄博洪安化工科技有限公司
Priority date: 2018-02-12
Filing date: 2018-05-22
Publication date: 2019-08-15

Abstract

A simple disassembling/assembling apparatus for a boom flange connection device, comprising a boom (4). A hook lifting means (5) and a hook (6) are provided at the upper end of the boom (4); the lower end of the boom (4) is connected to a bushing (3). The disassembling/assembling apparatus features a simple structure, low costs, flexible use, and high efficiency.

Description

Simple disassembly and assembly device for boom flange connection equipment

Technical field

The invention particularly relates to a simple disassembly and assembly device for a boom flange connection device.

Background technique

In industrial production, there are many devices that can be disassembled by flange connection. Lifting equipment (driving, car hanging, reverse chain, etc.) is required during the assembly or disassembly of the two parts to be connected. Especially during the maintenance of the device, due to the limitation of the height of the road, the height of the device, the space, etc., it is extremely troublesome to disassemble the device at the site.

Summary of the invention

The object of the present invention is to solve the problem that the lifting equipment is needed when the flange connecting equipment is disassembled and assembled, and the utility model has the advantages of high cost, time-consuming and laborious disassembly, and inconvenience, and provides a simple disassembly and assembly device for the boom connecting device. It eliminates the need for lifting equipment and saves time and effort.

The present invention is achieved by the following technical solutions:

The utility model relates to a simple disassembly and assembly device of a boom flange connecting device, which is characterized in that the utility model comprises a lifting arm, and a lifting hook lifting device and a hook are arranged at an upper end of the lifting arm, and a lower end of the lifting arm is connected with the sleeve.

The lower end of the boom of the present invention is connected to the first cylinder (housing) of the flange connecting device through a sleeve, and the boom is connected to the second cylinder (housing) through the hook, and the second lifting device is slightly raised by the hook lifting device. The cylinder body gently pushes the second cylinder to rotate relative to the first cylinder, and no lifting equipment is required for disassembly and assembly.

Further, when the present invention is applied to a vertical flange connection device, the boom is an inverted L-shaped bent structure, and the sleeve is set at a lower portion of the vertical portion thereof, and a connecting plate is disposed on the inner side of the sleeve, and the upper end of the boom The horizontal part is provided with a hook lifting device and a hook.

The utility model connects the boom through the sleeve and the connecting plate to the first cylinder (housing) below the flange, and the upper end of the boom extends above the second cylinder (housing) above the flange, and uses the hanging The hook hooks the second cylinder (housing), and the second cylinder (housing) can be rotated relative to the first cylinder (housing), and the lifting and unloading equipment is not required.

When the flange connection device allows welding, the connecting plate can be fixed to the device by direct welding;

When the flange connection equipment does not allow welding, a clamp or gantry can be placed outside the equipment to weld the joint plate to the clamp or gantry.

Further, when the present invention is applied to a horizontal flange connection device, the boom is a tilted straight arm, and the shaft is mounted on the bearing seat through a bearing, and the sleeve is sleeved on the shaft, and the lower end of the boom is connected with the sleeve.

The utility model fixes the bearing seat to the side of the first cylinder body (housing) on one side of the flange, and the upper end of the boom extends to the upper side of the second cylinder body (housing) on the other side of the flange, and the hook is used The second cylinder (housing) is hooked, and the second cylinder (housing) is rotatable relative to the first cylinder (housing), and no lifting equipment is required for disassembly and assembly.

When the first cylinder (housing) allows welding, the bearing housing can be fixed to the first cylinder (housing) by direct welding;

When the first cylinder (housing) is not allowed to be welded, a clamp or a gantry may be provided outside the first cylinder (housing) to weld the bearing housing to the clamp or the gantry.

The hook lifting device of the present invention is preferably, but not limited to, a worm gear lifter. Lifting devices known from the prior art can also be used in the present invention.

The turbine screw lifter of the present invention is composed of a worm gear and a worm gear. The internal thread of the worm wheel and the screw rod cooperate to perform axial movement, and are mainly used for converting the rotary motion into a linear motion or converting the linear motion into a rotary motion to complete the lifting and lowering of the object. Push and pull, etc. The biggest feature of the worm gear screw lifter is the self-locking function. When the lead angle of the worm is smaller than the equivalent friction angle between the meshing teeth, the mechanism has self-locking property, which can realize reverse self-locking, that is, it can only be driven by the worm. The worm wheel, but not the worm wheel. The self-locking function can protect the safe operation of the equipment.

Further, the bushing of the present invention is provided in plurality, and the plurality of bushings are integrally connected. Assembly is more convenient.

The vertical flange connecting device and the horizontal flange connecting device of the present invention include, but are not limited to, heat exchange equipment (heater, cooler, condenser, steam generator, waste heat boiler, heat exchanger type reactor, etc.) Etc.), open reactor, etc.

The invention has the advantages of simple structure, low cost, flexible use and high efficiency. By using the invention, the lifting and unloading equipment is not needed, and the disassembly and assembly cost is greatly reduced; the invention is small in size, and is limited by the height and space of the road and the device, and is convenient to disassemble and install on the device, and the disassembly and assembly efficiency can be greatly improved.

DRAWINGS

1 is a schematic structural view of Embodiment 1 of the present invention;

2 is a schematic structural view of a clamp used in conjunction with the present invention;

3 is a schematic structural view of a gantry used in conjunction with the present invention;

4 is a schematic structural view of Embodiment 2 of the present invention.

As shown in the figure: 1. Connecting plate; 2. Locking nut; 3. Bushing; 4. Boom; 5. Worm screw lifter; 6. Hook; 7. Clamp; 8. Gantry; 9. bearing housing; 10. shaft;

Detailed ways

Example 1

As shown in Figure 1: the flange connection equipment is a new vertical heat exchanger, which comprises a shell side and a tube box. The tube box is on the top, the shell side is on the bottom, and the boom 4 is an inverted L-shaped curved arm. Two bushings 3 are respectively provided to the lower part of the casing, and the two bushings 3 are respectively welded to the shell cylinder by the connecting plate 1, and the lower bushing 3 is provided with a lock nut 2, and the lateral portion of the boom 4 is provided. A vertical worm screw lifter 5, the hook 6 is mounted at the lower end of its lifting screw.

The process of the on-site inspection and replacement of the new vertical heat exchanger of this embodiment is as follows:

Disassembly and assembly of the upper box

1 Weld the connecting plate 1 to the shell of the heat exchanger, and connect the hook 6 and the flange (or the lifting lug) with a wire rope.

2 Remove the bolts that connect the flange of the tube to the flange of the shell tube.

3 Turn the handwheel slightly to raise the lifting screw so that the tube box is out of the tube plate flange and gently push the tube box to rotate.

To one side.

4 After the repair is completed, push back to the original position and then reverse the handwheel to completely reset the tube box and tighten the screw.

bolt.

Example 2

As shown in FIG. 4, the flange connecting device is a new horizontal heat exchanger, which comprises a shell side and a pipe box, and one side of the shell side is provided with a connecting plate 1 , and the bearing seat 9 is directly welded on the connecting plate 1 . The shaft 10 is mounted on the bearing housing 9, the sleeve 3 is set on the shaft 10, the boom 4 is inclined, the lower end is connected with the sleeve 3, and the upper end is provided with a manual worm gear screw lifter 5 and a hook 6, the hook 6 It is connected to the lifting screw of the worm wheel screw lifter 5.

The process of the on-site inspection and repair of the new horizontal heat exchanger of this embodiment is as follows:

1 directly solder the bearing housing 2 to the connecting plate 1 on the side of the shell side, and connect the hook 6 with a wire rope and

On the right side of the flange, turn the handwheel to raise the lifting screw slightly.

2 Loosen and remove all bolts between the header flange and the shell plate flange.

3 Gently push the box to rotate the box to one side. Push back after the overhaul and slightly drop

You can insert the bolt and tighten the nut.

Example 3

The flange connection device is an old vertical heat exchanger, and the shell-side cylinder allows welding, and the same as in the first embodiment.

In the embodiment, the on-site inspection is identical to the first embodiment when it is first removed and then reassembled.

Example 4

The flange connection device is an old vertical heat exchanger, and the shell-side cylinder is not allowed to be welded. Others are the same as in the first embodiment.

In the embodiment, when the on-site inspection is first disassembled and then reassembled, as shown in FIG. 2, a clamp 7 is prefabricated and the clamp 7 is tightly clamped on the shell cylinder, and then the joint plate 1 is welded to the clamp 7. The rest is exactly the same as in the first embodiment.

Example 5

In the embodiment, when the on-site inspection is first removed and then reassembled, as shown in FIG. 3, a gantry 8 is prefabricated, and then the connecting plate 1 is welded to the upright of the gantry 8, and the rest is exactly the same as in the first embodiment.

The old vertical heat exchanger in the embodiment of the present invention refers to a heat exchanger that is still in use.

Example 6

The flange connection device is an old horizontal heat exchanger, and the shell-side cylinder allows welding, and the same as in the second embodiment.

In the embodiment, the on-site inspection is identical to the second embodiment when it is first removed and then reassembled.

Example 7

The flange connection device is an old horizontal heat exchanger, and the shell-side cylinder is not allowed to be welded, and the other is the same as in the second embodiment.

In the embodiment, when the on-site inspection is first removed and then reassembled, as shown in FIG. 2, a clamp 7 is prefabricated and the clamp 7 is tightly clamped on the shell cylinder, and then the connection plate 1 is welded to the clamp. The rest is exactly the same as in Example 2.

Example 8

In the embodiment, when the on-site inspection is first removed and then reassembled, as shown in FIG. 3, a gantry 8 is prefabricated, and then the connecting plate 1 is welded to the upright of the gantry 8, and the rest is exactly the same as in the second embodiment.

The old horizontal heat exchanger of the present invention refers to a heat exchanger that is still in use.

The above is only an exemplary embodiment of the present invention, and the scope of protection of the present invention is not limited thereto. Any changes or substitutions that are conceivable within the scope of the present invention are intended to be included within the scope of the present invention. If the position of the connecting plate is not fixed, the position of the connecting plate is determined according to the space conditions of the device, so that the disassembly process is as inconvenient as possible. The invention is applicable to all horizontal flange connection devices known in the prior art and vertical flange connection devices that are detachable from the top. Therefore, the scope of protection of the present invention should be determined by the scope of protection defined by the claims.

Claims

The utility model relates to a simple disassembly and assembly device for a boom flange connecting device, which is characterized in that a boom is arranged, and a hook lifting device and a hook are arranged at an upper end of the boom, and a lower end of the boom is connected with the sleeve.
A simple dismounting and dismounting device for a boom flange connecting device according to claim 1, wherein the boom is an inverted L-shaped bent structure, and the sleeve is set at a lower portion of the vertical portion thereof, and the inner side of the sleeve is provided There is a connecting plate, and the upper end of the boom is provided with a hook lifting device and a hook.
The detachable device for a simple boom flange connecting device according to claim 1, wherein the boom is a slanting straight arm, and the shaft is mounted on the bearing seat through a bearing, and the shaft is sleeved with a sleeve, and the lower end of the boom Connected to the sleeve.
The detachable device for a simple boom flange connecting device according to claim 1, wherein the hook lifting device is a worm gear screw lifter.
A simple attachment and detachment device for a boom flange connecting device according to claim 1 or 2 or 3, wherein the plurality of bushings are provided integrally, and the plurality of bushings are integrally connected.