Connecting structure for inner tank suspended ceiling beam of low-temperature storage tank

Abstract

The utility model relates to the technical field of low-temperature storage tanks, and discloses a connecting structure for an inner tank suspended ceiling beam of a low-temperature storage tank, which comprises an assembling base ring, a plurality of uniformly distributed assembling frames are arranged on the periphery of the assembling base ring, first hinging pieces are connected between the assembling frames and the assembling base ring, and second hinging pieces are connected between the adjacent assembling frames; gaps are reserved between the assembling frames and the assembling base ring, the first hinge pieces are fixedly installed on the tops of the assembling base ring and the assembling frames through bolts, and gaps are reserved between the adjacent assembling frames. Due to the arrangement of the first hinging pieces, a worker can conveniently adjust the angles of the assembling frames relative to the assembling base ring, so that the assembling frames swing up and down to enable the assembling frames and the assembling base ring to form a required fixed angle, the assembling base ring and the assembling frames can form an arch shape, the strength of a suspended ceiling can be improved, and the service life of the suspended ceiling is prolonged. Meanwhile, the diameters of the circumferences where the outer ends of the assembling frames are located can be adjusted, so that the assembling frames are suitable for suspended ceilings of different inner tanks.

Description

Technical Field

[0001] The utility model relates to the technical field of low-temperature storage tanks, and more specifically, to a connection structure for a tank ceiling beam inside a low-temperature storage tank. Background Art

[0002] Cryogenic storage tanks are often used to store low-temperature, normal-pressure liquefied gases (ammonia, ethylene, propylene, LPG, natural gas and other gases that can be liquefied at room temperature or low temperature). The storage tanks are divided into inner tanks and outer tanks. The inner tank is in contact with the liquefied gas, and pearlescent sand is filled between the inner and outer tank cylinders for insulation. The top of the inner tank needs to use a specially designed suspended ceiling to close the upper opening of the inner tank to achieve the function of insulating the top of the inner tank and prevent the loss of cold water in the low-temperature liquid in the inner tank. The suspended ceiling is connected to the outer tank top grid shell by a pull rod, and the weight of the suspended ceiling will generate additional loads on the outer tank top grid shell; therefore, the suspended ceiling design must not only meet the requirements of insulation, construction and other load conditions, but also be light in weight, easy to assemble and convenient for on-site construction.

[0003] At present, most of this type of suspended ceiling adopts a reinforced circular flat plate structure welded by stainless steel plates and aluminum plates. It is heavy and requires a lot of welding work in the closed space of the outer tank. The harmful and dirty gases generated during the welding process cause a harsh construction environment on site. The geometric dimensions of the suspended ceiling cannot be accurately guaranteed due to on-site manufacturing. Therefore, it is necessary to develop a new type of assembled suspended ceiling to solve the shortcomings of the current status of the suspended ceiling of the inner tank of the above-mentioned low-temperature storage tank. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a connection structure for a ceiling beam inside a low-temperature storage tank.

[0005] To achieve the above object, the utility model provides the following technical solution: a connection structure for a ceiling beam of an inner tank of a low-temperature storage tank, comprising an assembly base ring, a plurality of assembly racks evenly distributed around the assembly base ring, a first hinge connected between the assembly rack and the assembly base ring, and a second hinge connected between adjacent assembly racks;

[0006] A gap is left between the assembly frame and the assembly base ring, the first hinge is fixedly installed to the assembly base ring and the top of the assembly frame by bolts, a gap is left between adjacent assembly frames, the second hinge is installed to the top or bottom of the assembly frame by bolts, and the second hinges connected to the left and right sides of the same assembly frame are fixedly installed on the upper and lower sides of the assembly frame by bolts respectively.

[0007] As a preferred technical solution of the utility model, a first support frame is fixedly connected inside the assembly base ring, a second support frame is fixedly connected inside the assembly frame, a plurality of lifting nodes are fixedly connected to the top of the second support frame, a suspension rod is movably connected to the lifting node, and the upper end of the suspension rod is fixedly connected to the top of the outer tank ceiling.

[0008] As a preferred technical solution of the utility model, one end of the assembly frame away from the assembly base ring swings up and down around the side of the assembly frame under the restriction of the first hinge, and the other end of the assembly frame away from the assembly base ring is fixed to the top of the inner tank by bolts.

[0009] As a preferred technical solution of the utility model, the suspension rod includes a rotating seat fixedly connected to the ceiling of the outer tank, the bottom of the rotating seat is rotatably connected to an adjustment sleeve, the internal thread of the adjustment sleeve is sleeved with a screw rod, and the lower end of the screw rod extends to the bottom of the adjustment sleeve and is fixedly connected to the lifting node.

[0010] As a preferred technical solution of the utility model, the assembly base ring, the assembly frame, the first support frame and the second support frame are all hollow structures, and the first support frame and the assembly base ring, as well as the second support frame and the assembly frame are integrally formed.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. Due to the provision of the first hinged member, the utility model can facilitate the staff to adjust the angle of the assembly rack relative to the assembly base ring, so that the assembly rack can swing up and down to make the several assembly racks and the assembly base ring present the required fixed angle, so that the assembly base ring and the several assembly racks can form an arch, which can improve the strength of the ceiling, and at the same time make the diameter size of the circumference of the outer ends of the several assembly racks adjustable, so that it is suitable for the ceilings of different inner tanks.

[0013] 2. Due to the provision of the second hinge, the utility model can connect several second hinges end to end, and then with the cooperation of the first hinge and the assembly base ring, the assembly base ring and several assembly racks form a complete whole, so that they can be hoisted on the top of the inner tank by the suspension rod, and because the second hinges on the left and right sides of the assembly rack are respectively connected to the upper and lower sides thereof, adjacent assembly racks can be folded with each other, so as to achieve the effect of easy folding, storage, carrying and transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a top view of the utility model;

[0016] Figure 3 It is a partial schematic diagram of the utility model;

[0017] Figure 4 This is a schematic diagram of the arched hoisting of the utility model;

[0018] Figure 5 It is a schematic diagram of the plane hoisting of the utility model.

[0019] In the figure: 1. assembly base ring; 2. assembly frame; 3. first hinge; 4. second hinge; 5. first support frame; 6. second support frame; 7. lifting node; 8. lifting rod; 81. adjustment sleeve; 82. rotating seat; 83. screw rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figures 1 to 5 As shown, the utility model provides a connection structure for the ceiling beam of the inner tank of a low-temperature storage tank, comprising an assembly base ring 1, a plurality of assembly racks 2 are evenly distributed around the assembly base ring 1, a first hinge 3 is connected between the assembly rack 2 and the assembly base ring 1, and a second hinge 4 is connected between adjacent assembly racks 2;

[0022] A gap is left between the assembly frame 2 and the assembly base ring 1, the first hinge 3 is fixedly installed to the assembly base ring 1 and the top of the assembly frame 2 by bolts, and a gap is left between adjacent assembly frames 2, the second hinge 4 is installed to the top or bottom of the assembly frame 2 by bolts, and the second hinges 4 connected to the left and right sides of the same assembly frame 2 are respectively fixedly installed to the upper and lower sides of the assembly frame 2 by bolts; due to the setting of the first hinge 3, it is convenient for the staff to adjust the angle of the assembly frame 2 relative to the assembly base ring 1, so that it can swing up and down so that a plurality of assembly frames 2 and the assembly base ring 1 are at the desired fixed angle, so that the assembly base ring 1 and a plurality of The assembly frame 2 is formed into an arch shape, which can improve the strength of the ceiling, and at the same time, the diameter size of the circumference of the outer ends of several assembly frames 2 can be adjusted, so that it is suitable for the ceilings of different inner tanks; due to the arrangement of the second hinge 4, several second hinges 4 can be connected end to end, and then with the cooperation of the first hinge 3 and the assembly base ring 1, the assembly base ring 1 and several assembly frames 2 form a complete whole, so that it can be hoisted on the top of the inner tank through the suspension rod 8, and because the second hinges 4 on the left and right sides of the assembly frame 2 are respectively connected to the upper and lower sides thereof, the adjacent assembly frames 2 can be folded with each other, so as to achieve the effect of folding, storage and carrying and transfer.

[0023] Among them, a first support frame 5 is fixedly connected to the inside of the assembly base ring 1, a second support frame 6 is fixedly connected to the inside of the assembly frame 2, a plurality of lifting nodes 7 are fixedly connected to the top of the second support frame 6, a suspension rod 8 is movably connected to the suspension node 7, and the upper end of the suspension rod 8 is fixedly connected to the top of the outer tank ceiling; because the first support frame 5 and the second support frame 6 can effectively improve the strength of the assembly base ring 1 and the assembly frame 2, and it is also convenient to evenly distribute the plurality of lifting nodes 7 above the assembly frame 2, so that the assembly frame 2 can be lifted stably and evenly by the suspension rod 8.

[0024] Among them, one end of the assembly frame 2 away from the assembly base ring 1 swings up and down around the side of the assembly frame 2 under the restriction of the first hinge 3, and the other end of the assembly frame 2 away from the assembly base ring 1 is fixedly installed on the top of the inner tank by bolts.

[0025] Among them, the suspension rod 8 includes a rotating seat 82 fixedly connected to the outer tank ceiling, the bottom of the rotating seat 82 is rotatably connected to an adjustment sleeve 81, the internal thread of the adjustment sleeve 81 is sleeved with a screw rod 83, the lower end of the screw rod 83 extends to the bottom of the adjustment sleeve 81 and is fixedly connected to the lifting node 7.

[0026] Among them, the assembly base ring 1, the assembly frame 2, the first support frame 5 and the second support frame 6 are all hollow structures, and the first support frame 5 and the assembly base ring 1, as well as the second support frame 6 and the assembly frame 2 are all integrally formed; due to the setting of the first support frame 5 and the second support frame 6, not only the overall support strength of the assembly base ring 1 and the assembly frame 2 is increased, but also the overall weight will not be increased too much, and the one-piece molding process can effectively reduce the huge workload of subsequent assembly and connection.

[0027] The working principle and use process of this utility model:

[0028] With the cooperation of the second hinge 4, the side edges of the plurality of assembly racks 2 are connected end to end by bolts, and with the cooperation of the first hinge 3, the assembly base ring 1 is connected between the plurality of assembly racks 2 by bolts, and then the arch angles of the plurality of assembly racks 2 and the assembly base ring 1 as a whole are adjusted according to the inner diameter size of the top of the inner tube of the low-temperature storage tank, and the plurality of assembly racks 2 are hoisted to the bottom of the outer tank ceiling by the hoisting rod 8, and finally, the ends of the plurality of assembly racks 2 away from the assembly base ring 1 are connected to the inner tank top by bolts;

[0029] During transportation, since two adjacent assembly frames 2 are connected by the second hinges 4, and adjacent second hinges 4 are respectively connected to the upper and lower connections of the corresponding assembly frames 2, several second hinges 4 can be folded and stored together through the second hinges 4, which greatly reduces the occupancy rate of the space after folding, which is not only convenient for storage, but also convenient for carrying and transfer.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A connection structure for a ceiling beam of a low-temperature storage tank, comprising an assembly base ring (1), characterized in that: A plurality of evenly distributed assembly racks (2) are arranged around the assembly base ring (1); a first hinge (3) is connected between the assembly rack (2) and the assembly base ring (1); and a second hinge (4) is connected between adjacent assembly racks (2); A gap is left between the assembly frame (2) and the assembly base ring (1); the first hinged member (3) is fixedly mounted on the assembly base ring (1) and the top of the assembly frame (2) by means of bolts; a gap is left between adjacent assembly frames (2); the second hinged member (4) is fixedly mounted on the top or bottom of the assembly frame (2) by means of bolts; and the second hinged members (4) connected to the left and right sides of the same assembly frame (2) are respectively fixedly mounted on the upper and lower sides of the assembly frame (2) by means of bolts.

2. A connection structure for ceiling beams in a low-temperature storage tank according to claim 1, characterized in that: The assembly base ring (1) is fixedly connected to a first support frame (5), the assembly frame (2) is fixedly connected to a second support frame (6), the top of the second support frame (6) is fixedly connected to a plurality of lifting nodes (7), the lifting nodes (7) are movably connected to a suspension rod (8), and the upper end of the suspension rod (8) is fixedly connected to the top of the outer tank ceiling.

3. The connection structure for the ceiling beam of the inner tank of a low-temperature storage tank according to claim 1 is characterized in that: One end of the assembly frame (2) away from the assembly base ring (1) swings up and down around the side of the assembly frame (2) under the restriction of the first hinge (3), and one end of the assembly frame (2) away from the assembly base ring (1) is fixedly installed on the top of the inner tank by bolts.

4. The connection structure for the ceiling beam of the inner tank of a cryogenic storage tank according to claim 2 is characterized in that: The suspension rod (8) comprises a rotating seat (82) fixedly connected to the outer tank ceiling, the bottom of the rotating seat (82) is rotatably connected to an adjustment sleeve (81), the internal thread of the adjustment sleeve (81) is sleeved with a screw rod (83), and the lower end of the screw rod (83) extends to the bottom of the adjustment sleeve (81) and is fixedly connected to the suspension node (7).

5. The connection structure for the ceiling beam of the inner tank of a low-temperature storage tank according to claim 1 is characterized in that: The assembly base ring (1), the assembly frame (2), the first support frame (5) and the second support frame (6) are all hollow structures, and the first support frame (5) and the assembly base ring (1) as well as the second support frame (6) and the assembly frame (2) are all integrally formed.

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