Vertical storage tank outer wall construction hanger and installation method thereof

Abstract

The present application belongs to the technical field of vertical cylindrical storage tank anticorrosion and heat preservation construction, and particularly relates to a vertical storage tank outer wall construction hanging bracket and a mounting method thereof, comprising a Z-shaped support frame and a ring track, the Z-shaped support frame is mounted on the guardrail stand of the tank top, the Z-shaped support frame is arranged along the outer wall of the storage tank for one round, the Z-shaped support frame hoists the ring track through the track hook, the ring track is mounted with a hand-pulled trolley, and the hand-pulled trolley is hung with a hanging cage type workbench. The present application is used for the anticorrosion and heat preservation construction of the vertical cylindrical storage tank by mounting the ring track hanging bracket on the tank top, and the construction process can be continuously and one-time completed without special qualification personnel, thereby saving time and effort and reducing construction cost.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of vertical cylindrical tank anticorrosion and thermal insulation construction, and particularly relates to a vertical tank outer wall construction hanger and a mounting method thereof. BACKGROUND

[0002] The vertical cylindrical tank is a commonly used material storage device in chemical enterprises. With the increase of the device scale, the volume of a single vertical cylindrical tank is also getting larger and larger, and several ten thousand liter tanks are very common. The vertical cylindrical tank has a large diameter and a high height, which brings difficulties to the anticorrosion and thermal insulation construction of the outer surface of the tank. The commonly used construction method is to erect a scaffold from the bottom to the top. Taking a 50,000 liter tank as an example, the tank has a diameter of 60 meters and a wall height of 19.37 meters. A double-row scaffold needs to be erected along the tank wall, with an area of 3773 square meters. According to the “Petroleum and Chemical Industry Maintenance Engineering Budget Quota (2009)”, 370 working days are required for erection and removal, i.e. 20 people work for 18.5 days. The existing construction method for tank anticorrosion construction is to erect a scaffold or to use high-altitude hoarding construction, which requires high-altitude operation qualification personnel. The existing construction method is time-consuming, labor-intensive and high in construction cost. SUMMARY

[0003] In view of the defects of the prior art, the present application aims to provide a vertical tank outer wall construction hanger and a mounting method thereof. The construction process can be completed continuously and at one time without the need for special qualification personnel, thereby saving a large amount of manpower and resources and reducing the construction cost.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the present application is as follows: a vertical tank outer wall construction hanger, comprising a Z-shaped support frame and a ring-shaped track, the Z-shaped support frame is installed on the guardrail stand column of the tank top, the Z-shaped support frame is arranged along the outer wall of the tank, the Z-shaped support frame is hoisted by a track hook to hoist the ring-shaped track, a hand-pulled trolley is installed on the ring-shaped track, and a cage-type workbench is hung below the hand-pulled trolley.

[0005] Further, the cage-type workbench is supported on the tank wall reinforcing ring through rollers installed at the bottom of the cage-type workbench.

[0006] Further, the ring-shaped track is formed by connecting a plurality of H-shaped steel structures, the upper flange plate of the H-shaped steel structure is connected with the track hook, and the H-shaped steel structure is arranged in one-to-one correspondence with the Z-shaped support frame.

[0007] Further, the H-shaped steel structure is arranged in an arc shape, and the curvature of the H-shaped steel structure is matched with the curvature of the outer wall of the tank.

[0008] Further, the upper flange plate of the H-shaped steel structure has a width of 50 mm and a thickness of δ6 mm, the lower flange plate has a width of 88 mm and a thickness of δ6 mm, and the vertical stud plate has a height of 110 mm and a thickness of δ5 mm.

[0009] Further, several H-shaped steel structures are bolted to form a ring track.

[0010] Further, a T-shaped slot matched with the upper flange of the H-shaped steel structure is arranged on the track hook.

[0011] Further, the Z-shaped support frame is arranged one-to-one with the guardrail column, and the Z-shaped support frame comprises an upper end plate connected with the guardrail column, a lower end plate connected with the track hook, and a middle connecting end plate, the connecting end plate is arranged obliquely, the angle formed between the connecting end plate and the upper end plate is an acute angle, and the angle formed between the connecting end plate and the lower end plate is an acute angle.

[0012] The vertical storage tank outer wall construction hanging bracket installation method comprises the following steps: installing a Z-shaped support frame on the guardrail column on the tank top, hanging and installing an H-shaped steel structure on the Z-shaped support frame through a track hook, connecting several H-shaped steel structures to form a ring track around the outer wall of the storage tank, and installing a work platform on the ring track.

[0013] Further, a hand-pulled trolley is installed on the ring track, and a cage-type workbench is hung below the hand-pulled trolley.

[0014] Further, the upper end plate of the Z-shaped support frame is connected with the guardrail column, the lower end plate of the Z-shaped support frame is connected with the track hook, and the upper end plate and the lower end plate are connected through the middle connecting end plate, the connecting end plate is arranged obliquely, the angle formed between the connecting end plate and the upper end plate is an acute angle, and the angle formed between the connecting end plate and the lower end plate is an acute angle.

[0015] Further, the upper end plate of the Z-shaped support frame is connected with the guardrail column angle steel, and the Z-shaped support frame is installed along the radial direction of the storage tank.

[0016] Further, the weight of the ring track is 10.60 kg / m, and the tensile strength is 40816 kg / 100 mm; the weight of the Z-shaped support frame is 21 kg / piece, and the vertical supporting force is greater than or equal to 5000 kg / piece.

[0017] The beneficial effects of the present application are: for the vertical cylindrical storage tank that has been put into use, the anticorrosion and heat preservation construction of the vertical cylindrical storage tank is carried out by installing a ring track hanging bracket on the tank top, special qualification personnel are not required for construction, the construction process can be continuously completed at one time, time and labor are saved, and the construction cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the hanging bracket installation;

[0019] Figure 2 It is a Z-shaped support frame connection enlarged view;

[0020] Figure 3The enlarged view of the H-shaped steel structure connection;

[0021] Figure 4 The enlarged view of the installation operation platform;

[0022] Figure 5 The schematic view of the connection of two H-shaped steel structures;

[0023] Figure 6 The schematic view of the fixation of the Z-shaped support frame and the guardrail upright;

[0024] In the figure: 1, Z-shaped support frame, 2, H-shaped steel structure, 3, track hook, 4, storage tank, 6, hand-pulled trolley, 7, cage-type operation platform, 8, guardrail upright, 8.1, guardrail upright angle steel. DETAILED DESCRIPTION

[0025] In order to make the structure and function of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application.

[0026] Referring to the drawings Figures 1-6 The vertical storage tank outer wall construction hoist frame comprises a Z-shaped support frame and a ring-shaped track, the Z-shaped support frame is installed on the guardrail upright on the top of the storage tank, the Z-shaped support frame is arranged along the outer wall of the storage tank, the Z-shaped support frame hoists the ring-shaped track through the track hook, the hand-pulled trolley is installed on the ring-shaped track, the cage-type operation platform is hung below the hand-pulled trolley, and the rollers at the bottom of the cage-type operation platform are supported on the tank wall reinforcing ring.

[0027] Further, the ring-shaped track is formed by connecting a plurality of H-shaped steel structures, the upper flange plate of the H-shaped steel structure is connected with the track hook, the H-shaped steel structure is arranged in one-to-one correspondence with the Z-shaped support frame, the H-shaped steel structure is arranged in an arc shape, and the curvature of the H-shaped steel structure is matched with the curvature of the outer wall of the storage tank.

[0028] Further, the width of the upper flange plate of the H-shaped steel structure is 50 mm, the thickness is δ6 mm, the width of the lower flange plate is 88 mm, the thickness is δ6 mm, the height of the vertical web plate is 110 mm, and the thickness is δ5 mm, and the plurality of H-shaped steel structures are connected into a ring-shaped track through bolts.

[0029] Further, a T-shaped slot matched with the upper flange plate of the H-shaped steel structure is arranged on the track hook.

[0030] Further, the Z-shaped support frame is arranged in one-to-one correspondence with the guardrail upright, the Z-shaped support frame comprises an upper end plate connected with the guardrail upright, a lower end plate connected with the track hook, and a middle connecting end plate, the connecting end plate is arranged in an inclined manner, the angle formed between the connecting end plate and the upper end plate is an acute angle, and the angle formed between the connecting end plate and the lower end plate is an acute angle, so as to avoid interference between the Z-shaped support frame and the corner of the top of the storage tank.

[0031] The vertical storage tank outer wall construction hanging bracket installation method installs Z-shaped support frame on the guardrail stand column of the tank top, hangs and installs H-shaped steel structure through track lifting hook on the Z-shaped support frame, a plurality of H-shaped steel structures are connected through bolts to form a ring track around the outer wall of the storage tank, a hand-pulled trolley is installed on the ring track, a hanging cage type workbench is hung below the hand-pulled trolley, three φ280 rollers are installed at the bottom of the workbench and supported on the storage tank wall reinforcing ring, and all construction work can be completed at one time without repeated disassembly and assembly.

[0032] Further, the upper end plate of the Z-shaped support frame is connected with the guardrail stand column angle steel, and the Z-shaped support frame is installed along the radial direction of the storage tank.

[0033] Further, the ring track is a self-made H-shaped steel structure, the H-shaped steel structure is arranged in an arc shape, the upper flange plate has a width of 50mm and a thickness of δ6mm, is cut by laser, and the circular arc radius is the maximum storage tank radius+0.5 meters. The lower flange plate has a width of 88mm and a thickness of δ6mm, is cut by laser, and the circular arc radius is the maximum storage tank radius+0.5 meters. The vertical stud plate has a height of 110mm and a thickness of δ5mm, and a plurality of H-shaped steel structures are connected by bolts to form a ring track, and the diameter of the ring track is the maximum storage tank diameter+1 meter.

[0034] Further, the theoretical weight of the ring track is 10.60kg / m, and the tensile strength is 40816kg / 100mm.

[0035] Further, the actual weight of the Z-shaped support frame is 21kg / piece, and the vertical supporting force is ≥5000kg / piece.

[0036] Further, the guardrail stand column does not deform under the 918kg force of the Z-shaped support frame.

[0037] Further, a single tank top guardrail angle steel and a Z-shaped support frame are subjected to a simulated force test before the installation of the hanging bracket, and the bearing range is measured.

[0038] The present application only needs to erect a ring track hanging bracket on the top of the storage tank. Taking a 50000 vertical storage tank as an example, the erection and removal only need 40 workdays, that is, 10 people work for 4 days, which saves a lot of manpower and material resources and reduces the construction cost.

[0039] The above is only the best embodiment of the present application. Obviously, the present application is not limited to the above embodiment, and there are many variations. All variations that can be directly derived or thought of by those skilled in the art from the disclosed content of the present application should be considered as falling within the protection scope of the present application.

Claims

1. A construction scaffolding for the outer wall of a vertical storage tank, characterized in that: The Z-shaped support frame is installed on the guardrail stand of the tank top, and the Z-shaped support frame is arranged along the outer wall of the tank, the Z-shaped support frame is hung with the ring-shaped track through the track hook, the hand-pulled trolley is installed on the ring-shaped track, and the cage type operation table is hung below the hand-pulled trolley; the ring-shaped track is formed by a plurality of H-shaped steel structures, the upper flange plate of the H-shaped steel structure is connected with the track hook, and the H-shaped steel structure is arranged in one-to-one correspondence with the Z-shaped support frame; the H-shaped steel structure is arranged in an arc shape, and the curvature of the H-shaped steel structure is matched with the curvature of the outer wall of the tank; the diameter of the ring-shaped track is the maximum tank diameter + 1 meter; the Z-shaped support frame is arranged in one-to-one correspondence with the guardrail stand, the Z-shaped support frame comprises an upper end plate connected with the guardrail stand, a lower end plate connected with the track hook and a middle connecting end plate, the connecting end plate is arranged in an inclined manner, the angle formed between the connecting end plate and the upper end plate is an acute angle, and the angle formed between the connecting end plate and the lower end plate is an acute angle; a plurality of rollers are installed at the bottom of the cage type operation table and supported on the tank wall reinforcing ring.

2. The vertical storage tank outer wall construction hoist according to claim 1, characterized in that: The upper flange plate of the H-shaped steel structure has a width of 50 mm and a thickness of δ6 mm, the lower flange plate has a width of 88 mm and a thickness of δ6 mm, the vertical stud plate has a height of 110 mm and a thickness of δ5 mm, and a plurality of H-shaped steel structures are bolted to form a ring-shaped track.

3. The vertical storage tank outer wall construction scaffolding according to claim 1, characterized in that: A T-shaped slot matched with the upper flange plate of the H-shaped steel structure is arranged on the track hook.

4. The method of installing an external wall construction scaffolding for a vertical storage tank according to any one of claims 1 to 3, characterized in that: The Z-shaped support frame is installed on the guardrail stand of the tank top, the H-shaped steel structure is hung on the Z-shaped support frame through the track hook, a plurality of H-shaped steel structures are connected to form a ring-shaped track around the outer wall of the tank, and the operation platform is installed on the ring-shaped track.

5. The method of installing an external wall construction hoist for a vertical storage tank according to claim 4, characterized in that: The upper end plate of the Z-shaped support frame is connected with the angle steel of the guardrail stand, and the Z-shaped support frame is installed along the radial direction of the tank.

6. The method of installing an external wall construction hoist for a vertical storage tank according to claim 4, characterized in that: The weight of the ring-shaped track is 10.60 kg / m, and the tensile strength is 40816 kg / 100 mm; the weight of the Z-shaped support frame is 21 kg / piece, and the vertical supporting force is ≥5000 kg / piece.

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