Hanging structure for construction of inner wall of LNG (Liquefied Natural Gas) storage tank

Abstract

The utility model discloses a suspension structure for construction of an inner wall of an LNG (liquefied natural gas) storage tank, which comprises a hanger laterally buckled on a reinforcing ring at the top of the LNG storage tank, the hanger is provided with a top plate, a bottom plate and a vertical plate for connecting the top plate and the bottom plate, the top plate is connected with the top surface of the reinforcing ring at the top of the storage tank through two top groove wheels which are symmetrically arranged front and back, and the top groove wheels are connected with the vertical plate. The top groove wheel is in rolling connection with the top face of the storage tank top reinforcing ring and is connected with the support through a wheel shaft, the wheel shaft and the support are fixedly connected through a detachable connecting structure, the support is fixed to the top plate, the gap between a notch of the top groove wheel and the storage tank top reinforcing ring is 1-4 cm, and the bottom plate is connected with the bottom face of the storage tank top reinforcing ring through a bottom groove wheel arranged in the middle. The bottom groove wheel is installed at the bottom of the storage tank top reinforcing ring and fixed to the bottom plate, the gap between a groove opening of the bottom groove wheel and the storage tank top reinforcing ring is 1-4 cm, and a lifting lug is arranged in the middle of the lower portion of the bottom plate. The anti-derailing device can effectively prevent derailing.

Description

TECHNICAL FIELD

[0001] The utility model relates to LNG storage tank construction technical field, especially a kind of suspension structure for the inner wall construction of storage tank. BACKGROUND

[0002] After the construction of LNG storage tank top reinforcing ring is completed, the electric basket originally hung on the inside construction rail beam of LNG storage tank cannot be used, at this time, there are still a large number of polishing, repairing and other construction operations on the tank wall, so it is still necessary to hang a construction operation platform on the inside of the tank wall of LNG storage tank to carry out construction operations.

[0003] The existing common construction method is usually the following two kinds:

[0004] One is to use a "long trailer" hung on the top reinforcing ring of LNG storage tank as a construction platform for operation, which is prone to derailment and falling from the top reinforcing ring during construction, posing a great safety hazard.

[0005] The other is to use a temporary hook as a basket suspension mechanism, and use the basket as a construction platform for operation, which is fixed and cannot move along the top reinforcing ring of LNG storage tank, and the basket needs to be climbed to the top of the tank wall of LNG storage tank to reinstall the suspension mechanism each time, which is low in construction efficiency and has great safety hazards. INVENTION CONTENTS

[0006] The utility model provides a suspension structure for the inner wall construction of LNG storage tank, which can prevent derailment and solve the technical problems in the prior art.

[0007] The utility model provides a suspension structure for the inner wall construction of LNG storage tank, which can prevent derailment and solve the technical problems in the prior art. The utility model discloses a suspension structure for the inner wall construction of LNG storage tank, which comprises a hanging rack buckled on the top reinforcing ring of LNG storage tank, a top plate spanning the top of the top reinforcing ring of the storage tank, a bottom plate spanning the bottom of the top reinforcing ring of the storage tank, and a vertical plate connecting the top plate and the bottom plate. The top groove wheel is in rolling connection with the top surface of the top reinforcing ring of the storage tank, and is connected with a support through an axle. The gap between the slot of the top groove wheel and the top reinforcing ring of the storage tank is 1-4 cm. The bottom groove wheel is installed at the bottom of the top reinforcing ring of the storage tank and fixed on the bottom plate. The gap between the slot of the bottom groove wheel and the top reinforcing ring of the storage tank is 1-4 cm. A lifting lug is arranged in the middle below the bottom plate.

[0008] The wheel shaft is made of a single head bolt.

[0009] The mounting structure of the bottom recess wheel is the same as that of the top recess wheel.

[0010] The support of the bottom recess wheel is fixedly connected with the bottom plate through the reinforcing rib plate.

[0011] The reinforcing rib is arranged on the inner side of the vertical plate.

[0012] The vertical plate adopts an isosceles inverted trapezoidal structure with a wide upper part and a narrow lower part.

[0013] The utility model has the advantages and positive effects that: two top recess wheels are adopted, so that the suspension structure can freely move along the top reinforcing ring of the storage tank, the bottom recess wheel is arranged, cooperates with the top recess wheel, and limits the up and down positions, so that the possibility of the structure being separated from the top reinforcing ring of the storage tank is eliminated, and the safety factor is high. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a structural schematic view of the utility model;

[0015] Fig. 2 It is a right view structural schematic view of the utility model;

[0016] Fig. 3 It is a plan view of the utility model.

[0017] In the drawing: 1, top plate; 2, wheel shaft; 3, split pin; 4, locking nut; 5, support; 6, top recess wheel; 7, vertical plate; 8, bottom recess wheel; 9, reinforcing rib plate; 10, bottom plate; 11, lifting lug; 12, reinforcing rib, 13, top reinforcing ring of storage tank. DETAILED DESCRIPTION

[0018] In order to further understand the invention content, characteristics and effects of the utility model, the following examples are exemplified, and the detailed description is as follows in cooperation with the drawings:

[0019] Please refer to Figs. 1-3A kind of suspension structure for LNG storage tank inner wall construction, including side buckle on the hanger of tank top reinforcing ring, the hanger is equipped with top plate 1 across the top of tank top reinforcing ring 13, bottom plate 10 across the bottom of tank top reinforcing ring 13 and the vertical plate 7 connecting the top plate 1 and the bottom plate 10.

[0020] The top plate 1 is connected to the top surface of the tank top reinforcing ring 13 by two top groove wheels 6 arranged symmetrically, the top groove wheels 6 are rollingly connected to the top surface of the tank top reinforcing ring 13, connected to the support 5 by the wheel shaft 2, the wheel shaft 2 is fixedly connected to the support 5 by detachable connecting structure, the support 5 is fixed on the top plate 1, and the gap between the notch of the top groove wheel 6 and the tank top reinforcing ring 13 is 1-4 cm.

[0021] The bottom plate 10 is connected to the bottom surface of the tank top reinforcing ring 13 by a centrally arranged bottom groove wheel 8, the bottom groove wheel 8 is installed at the bottom of the tank top reinforcing ring 13 and fixed on the bottom plate 10, and the gap between the notch of the bottom groove wheel 8 and the tank top reinforcing ring 13 is 1-4 cm.

[0022] A lifting lug 11 is centrally arranged below the bottom plate 10, which can be used to tie electric hanging baskets, lifelines, X-ray flaw detectors and the like.

[0023] The two top groove wheels can realize the circumferential movement of the suspension structure along the tank wall top reinforcing ring, and the bottom groove wheel is used to prevent the suspension structure from derailing.

[0024] The more preferred scheme of the embodiment is as follows:

[0025] The wheel shaft 2 is made of a single head bolt, and is fixedly connected to the support by a lock nut 4 and a split pin 3, which is simple in structure and easy to manufacture.

[0026] The mounting structure of the bottom groove wheel 8 is the same as that of the top groove wheel 1, which is good in universality.

[0027] The support of the bottom groove wheel 8 is fixedly connected to the bottom plate 10 by a reinforcing rib plate 9, which has high structural strength.

[0028] Two stiffening ribs 12 are arranged on the inner side of the vertical plate 7, which plays a role in structural reinforcement.

[0029] The vertical plate 7 adopts an isosceles inverted trapezoidal structure with a wide top and a narrow bottom, considering lightweight design.

[0030] The groove wheel with relatively large diameter can effectively avoid the jamming of the suspension structure when rolling along the LNG storage tank top reinforcing ring, ensuring smooth rolling.

[0031] In application, the components except the two sets of top groove wheels are assembled into an integral body first, and then installed in place on the top reinforcing ring of the LNG storage tank wall, during installation, the assembly is lifted upward, the bottom groove wheel is tightly attached to the lower edge of the vertical plate of the top reinforcing ring of the tank wall, and then the installation of the top groove wheel is performed.

[0032] Although the preferred embodiments of the present application are described above in combination with the drawings, the present application is not limited to the specific embodiments described above, and the specific embodiments described above are only illustrative and not restrictive, and those of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims, which all belong to the protection scope of the present application.

Claims

1. A suspension structure for LNG storage tank inner wall construction, characterized by, The hanging rack comprises a top plate, a bottom plate and a vertical plate, the top plate is arranged across the top of the top reinforcing ring of the storage tank, the bottom plate is arranged across the bottom of the top reinforcing ring of the storage tank, and the vertical plate is arranged between the top plate and the bottom plate, The top plate is connected with the top surface of the top reinforcing ring of the storage tank through two top groove wheels arranged symmetrically in front and back, the top groove wheel is in rolling connection with the top surface of the top reinforcing ring of the storage tank, is connected with a support through a wheel shaft, the wheel shaft is fixedly connected with the support through a detachable connecting structure, the support is fixed on the top plate, and the gap between the notch of the top groove wheel and the top reinforcing ring of the storage tank is 1-4 cm, The bottom plate is connected with the bottom surface of the top reinforcing ring of the storage tank through a bottom groove wheel arranged centrally, the bottom groove wheel is arranged at the bottom of the top reinforcing ring of the storage tank, is fixed on the bottom plate, and the gap between the notch of the bottom groove wheel and the top reinforcing ring of the storage tank is 1-4 cm, A lifting lug is arranged centrally below the bottom plate.

2. The hanging structure for LNG storage tank inner wall construction according to claim 1, wherein, The wheel shaft is made of a single head bolt.

3. The hanging structure for LNG storage tank inner wall construction according to claim 1, wherein, The mounting structure of the bottom groove wheel is the same as that of the top groove wheel.

4. The hanging structure for LNG storage tank inner wall construction according to claim 1, wherein The support of the bottom groove wheel is fixedly connected with the bottom plate through a reinforcing rib plate.

5. The hanging structure for LNG storage tank inner wall construction according to claim 1, wherein Two stiffening ribs are arranged on the inner side of the vertical plate.

6. The hanging structure for LNG storage tank inner wall construction according to claim 1, wherein The vertical plate adopts an isosceles inverted trapezoidal structure which is wide at the top and narrow at the bottom.

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