CN2739137Y

CN2739137Y - Continuous beam and net-shell type floating roof

Info

Publication number: CN2739137Y
Application number: CN 200420112065
Authority: CN
Inventors: 王夫安; 程晖; 董旭; 傅伟庆; 孟庆鹏; 胡春伟; 李金国
Original assignee: China Petroleum Pipeline Engineering Corp
Current assignee: China National Petroleum Corp; China Petroleum Pipeline Bureau Co Ltd
Priority date: 2004-11-05
Filing date: 2004-11-05
Publication date: 2005-11-09
Anticipated expiration: 2014-11-05

Abstract

The utility model discloses a continuous beam and net-shell type floating roof of upright steel weld joint oil tank, comprising a continuous beam annular cabin 1, a flexible single disc 3, a net-shell type vault 4, a catch pit 5, a nonreturn valve 6, a floating roof water outlet pipe 7 and an emergency drain component 8; the continuous beam annular cabin 1 is around the floating roof; the inner of the floating roof is provided with a radical direction and annular direction continuous beam 2; the flexible single disc 3 is connected with the lower part of the inner edge of the continuous beam annular cabin 1; the net-shell type vault 4 is fixedly connected with the lower segment of the inner edge plate of the annular cabin 1; the catch pit 5 is installed on the flexible single disc 3; the nonreturn valve 6 is arranged in the catch pit 5; the nonreturn valve 6 is connected with the floating roof water outlet pipe 7; the emergency drain component 8 is installed on the flexible single disc 3; the floating roof adopts continuous beam and net-shell type structure, has enough strength, stability and excellent anticorrosion performance, and also the expenditure of construction is lower.

Description

The floating top of continuous beam and net shell-type

Technical field

The utility model relates to a kind of continuous beam and floating top of net shell-type that is used for vertical steel soldering oil jar, belongs to oil tank floating roof structure technical field, is used for vertical steel soldering oil jar.

Background technology

There are single-deck formula and two kinds of versions of double plate in the outer floating top that vertical steel soldering oil jar is commonly used at present.The single-deck distortion on the floating top of single-deck formula is big, and ponding subjects to corrosion, and anti-high wind performance, heat-insulating property are poor; The steel structure on the floating top of common double plate is unreasonable, and load-carrying capacity is poor, easily tilts behind the ponding, and stability is bad, complex structure, and steel quantity consumption is big, the fabrication cost height.

Summary of the invention

The purpose of this utility model is to provide a kind of new-type floating roof structure---the floating top of continuous beam and net shell-type.Should adopt continuous beam and net shell-type structure in floating top, enough intensity, stability and good Corrosion Protection are arranged, fabrication cost is lower.

The purpose of this utility model is achieved in that and comprises continuous beam ring cabin 1, flexible single-deck 3, net shell-type vault 4, catch pit 5, check valve 6, floating roof drain 7, urgent drainage element 8, the Fu Ding border is continuous beam ring cabin 1, it is inner installs radially and hoop continuous beam 2, flexible single-deck 3 is connected 1 inner edge bottom, continuous beam ring cabin, net shell-type vault 4 is fixedly connected on the hypomere of the inner platform in ring cabin 1, catch pit 5 is installed on the flexible single-deck 3, check valve 6 is set in the catch pit 5, check valve 6 links to each other with floating roof drain 7, and urgent drainage element 8 is installed on the flexible single-deck 3.

Continuous beam 2 is continuous between cabin and cabin.

Ring cabin 1 and the radial girders and the hoop beam 2 that encircle between the cabin 1, promptly radially reinforced rib and hoop reinforced rib to pass the cabin dividing plate continuous, be not open circuited.

Vault 4 is to be made of latticed shell structure, is rounded net shell-type.

The floating top of continuous beam and net shell-type is mainly formed by encircling cabin, flexible single-deck and net shell vault three parts and catch pit, check valve floating roof drain, urgent freeing arrangement etc.The steel structure in ring cabin is made of to beam (or being referred to as reinforced rib) continuous radial girders and continuous loop.

Floating top periphery is mutual fully enclosed ring cabin (the ring cabin can be a circle or a multi-turn), flexible single-deck periphery is connected the hypomere of ring cabin inner platform, middle part, floating top is a net shell-type vault, net shell-type vault is installed in the top of continuous beam ring cabin inner platform, catch pit and urgent freeing arrangement are installed on the flexible single-deck, check valve is installed in the catch pit, and check valve links to each other with floating roof drain.

As everyone knows, open circuited beam can not transmit power and moment.The radial girders and the hoop beam (or being referred to as reinforced rib) in ring cabin all are continuous beams, be that reinforced rib passes the radially dividing plate in ring cabin and the hoop dividing plate in ring cabin is connected to each other, rather than be open circuited, thereby the bulk strength and the stability on floating top have been strengthened greatly as in the past.Latticed shell structure light-duty, attractive in appearance is adopted at the middle part on floating top, has alleviated the weight on floating top.

The utility model uses as outer floating top, and ring cabin upper surface can accumulate a certain amount of rainwater under the normal circumstances, and rainwater imports catch pit by on the ring cabin and flow on the flexible single-deck on the net shell vault, by check valve by outside the floating roof drain drain tank.

The water of or other reason catch pit big when moisture conditions is when in time drain tank is outer, entered in the jar by the urgent freeing arrangement ponding that will overload, and protection is floated to push up and made it to avoid to sink.

The utlity model has following advantage: the radially reinforcing rib ring that the utility model buoyancy module steel structure adopts all is continuous beams to reinforced rib, and promptly reinforced rib passes radially dividing plate or the hoop dividing plate is connected to each other, and the high resistance to overturning of intensity is good; The Large Deflection Deformation of flexible single-deck makes ponding concentrate on middle part, floating top, and center of gravity reduces, and the floating performance of toppling of offending and disobeying with rude remarks strengthens, and can satisfy the requirement of standard carrying 250mm moisture conditions; Net shell vault mechanical property is good, and is lightly attractive in appearance, and heat insulation anticorrosive, cost is low.

Description of drawings

Fig. 1 is the scheme drawing (front view) on the utility model continuous beam and the floating top of net shell-type;

Fig. 2 is the birds-eye view of Fig. 1.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is further described:

As shown in the figure, the floating top of the utility model continuous beam and net shell-type mainly is made up of ring cabin 1, flexible single-deck 3, net shell-type vault 4 etc.The Fu Ding border is continuous beam ring cabin 1, and flexible single-deck is connected the hypomere of continuous beam 2 ring inside edges, cabin, and net shell-type vault 4 is fixed on the top of continuous beam 2 ring cabin inner side edge listriums.Catch pit 5 and urgent drainage element 8 are set on the flexible single-deck 3, check valve 6 is set in the catch pit 5, check valve 6 links to each other with floating roof drain 7.The utility model uses as outer floating top, ring cabin 1 is played buoyancy function is provided, its in-to-in radially plays with hoop beam 2 and supports and booster action, the net shell-type vault 4 on top plays the heat-insulation and heat-preservation effect, precipitation is by flowing on the flexible single-deck 3 on the ring cabin with on the net shell-type top board, import catch pit 5, by check valve 6 by outside floating roof drain 7 drain tanks.When moisture conditions water big or other reason catch pit 5 can not in time be discharged to outside the jar, overload ponding was entered in the jar by urgent drainage element 8.The deflection deformation of flexible single-deck 3 makes ponding concentrate on middle part, floating top and makes the center of gravity reduction of floating top, and the antidumping performance strengthens; Net shell-type vault plays heat-blocking action.The reinforced rib of ring cabin radial girders and hoop beam all adopts continuous beam, the good stability on floating top.

The utility model is installed in the external floating top tank, fluctuates with liquid level, has increased intensity, resistance to sinking and the decay resistance on floating top, and heat insulation effect strengthens greatly, has reduced maintenance workload, is a kind of floating safely and efficiently top form.

Claims

1, the floating top of continuous beam and net shell-type, comprise continuous beam ring cabin (1), flexible single-deck (3), net shell-type vault (4), catch pit (5), check valve (6), floating roof drain (7), urgent drainage element (8), it is characterized in that: the Fu Ding border is continuous beam ring cabin (1), it is inner installs radially and hoop continuous beam (2), flexible single-deck (3) is connected inner edge bottom, continuous beam ring cabin (1), net shell-type vault (4) is fixedly connected on the hypomere of the inner platform in ring cabin (1), catch pit (5) is installed on the flexible single-deck (3), check valve (6) is set in the catch pit (5), check valve (6) links to each other with floating roof drain (7), and urgent drainage element (8) is installed on the flexible single-deck (3).

2, the floating top of continuous beam according to claim 1 and net shell-type, it is characterized in that: continuous beam (2) is continuous between cabin and cabin.

3, the floating top of continuous beam according to claim 1 and net shell-type is characterized in that: ring cabin (1) and the radial girders and the hoop beam (2) that encircle between the cabin (1), promptly radially reinforced rib and hoop reinforced rib to pass the cabin dividing plate continuous, be not open circuited.

4, the floating top of continuous beam according to claim 1 and net shell-type, it is characterized in that: vault (4) is to be made of latticed shell structure, is rounded net shell-type.