CN110451104B - Full-contact flexible light rubber floating disc and application thereof - Google Patents
Full-contact flexible light rubber floating disc and application thereof Download PDFInfo
- Publication number
- CN110451104B CN110451104B CN201810426746.7A CN201810426746A CN110451104B CN 110451104 B CN110451104 B CN 110451104B CN 201810426746 A CN201810426746 A CN 201810426746A CN 110451104 B CN110451104 B CN 110451104B
- Authority
- CN
- China
- Prior art keywords
- rubber
- floating disc
- rubber membrane
- full
- storage tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D88/00—Large containers
- B65D88/34—Large containers having floating covers, e.g. floating roofs or blankets
- B65D88/42—Large containers having floating covers, e.g. floating roofs or blankets with sealing means between cover rim and receptacle
- B65D88/50—Large containers having floating covers, e.g. floating roofs or blankets with sealing means between cover rim and receptacle with resilient foam or stuffed seal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combined Devices Of Dampers And Springs (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to a full-contact flexible light rubber floating disc and application thereof, and mainly solves the problem of poor sealing effect in the prior art. The invention adopts a technical scheme that the full-contact flexible light rubber floating disc comprises a top rubber film, an inflatable capsule, a side rubber film and a fixing device, the edge of the floating disc is fixed at the inner side of the wall of a storage tank through the side rubber film, the top rubber film is transversely arranged in the inner space of the storage tank, the inflatable capsule is positioned below the top rubber film and is connected with the top rubber film to form the full-contact flexible light rubber floating disc, the diameter of the upper surface of the floating disc is larger than that of the lower surface, and the diameter of the upper surface of the floating disc is smaller than that of the storage tank, so that the problems are better solved, and the full-contact flexible light rubber floating disc can be used in an inner floating roof storage tank and an outer floating roof storage tank with a dome.
Description
Technical Field
The invention relates to a full-contact flexible light rubber floating disc and application thereof.
Background
The environmental pollution is caused by VOC (volatile organic compounds) emission of domestic normal-pressure storage tanks during operation, which causes great environmental protection pressure for petrochemical enterprises, and in addition, the oil gas in the storage tanks gathers and also causes great explosion risks for tank areas, such as many spontaneous combustion accidents like explosion accidents of floating disc sealing rings of outer floating roof storage tanks, lightning strokes of inner floating roof storage tanks or spontaneous combustion accidents of ferrous sulfide in the tanks in recent years, and great economic loss is caused.
To this, domestic enterprise has sought multiple answer scheme, if change the oil gas that the sealing washer structure reduced the floating disc sealing washer and volatilize, carries out the airtight processing of oil gas with storage tank gas phase UNICOM, adopts oil gas recovery device to deal with, and storage tank VOC's emission can't all be eliminated from the root to these technical measure, in addition, also can increase tank field risk, and it is not the best economic security's countermeasure all. The source of VOC emission is that the oil surface is exposed in the atmosphere, and oil gas molecules can freely diffuse to the external space. A large number of VOC leakage sources exist in the outer floating roof storage tank, the inner floating roof storage tank and the vault storage tank, such as a floating disc sealing ring, a gap of a floating disc accessory, a vent hole in the top of a tank wall and the like. Completely intercepting the diffusion path of these VOC molecules is essential to completely eliminate VOC emissions.
Nie Shi quan et al in oil and gas storage and transportation (2011,30 (6): 468-. Wu hong chapter et al in environmental science (2013,34 (12): 4712) states that one of the main factors of the internal floating roof VOC breathing loss is the sealing effect of the floating disc, the oil gas loss of the floating disc mainly occurs at the annular sealing ring between the floating disc and the tank wall, and the aging and deformation of the floating disc are also important reasons for aggravating the VOC leakage in the tank. The method is characterized in that gas phase spaces of storage tanks are connected, and an oil gas recovery system is arranged in the gas phase space solution for gas-liquid storage loss through oil gas recovery of oil gas in oil gas storage and transportation (2010,29 (11): 874-876).
Disclosure of Invention
One of the technical problems to be solved by the invention is the problem of poor sealing effect in the prior art, and the invention provides a novel full-contact flexible light rubber floating disc which has the advantage of good sealing effect. The second technical problem to be solved by the present invention is to provide an application of the full-contact flexible lightweight rubber floating plate corresponding to the first technical problem to be solved.
In order to solve one of the problems, the technical scheme adopted by the invention is as follows: the utility model provides a flexible light rubber floating disc of full contact, includes top rubber membrane, aerifys capsule, side rubber membrane, fixed device, the edge of floating disc is fixed at the inboard position of storage tank jar wall through side rubber membrane, and top rubber membrane transversal arrangement is in storage tank inner space, aerifys the capsule and is located under the top rubber membrane and meet with top rubber membrane, constitutes the flexible light rubber floating disc of full contact, floating disc upper surface diameter is greater than the lower surface diameter, and floating disc upper surface diameter is less than the storage tank diameter, the total area of aerifing the capsule is 20 ~ 80% of top rubber membrane total area.
Among the above-mentioned technical scheme, preferably, the rubber membrane comprises polylith rubber membrane concatenation, and seam crossing needs to be sealed to satisfy the strength requirement.
In the above technical scheme, preferably, the inflatable capsule is strip-shaped and is uniformly arranged under the top rubber membrane.
Among the above-mentioned technical scheme, preferably, when the side rubber membrane at rubber membrane both ends was fixed with jar wall and floating plate edge, need adopt metal stationary blade, gasket and bolt, guaranteed that the fixed department at rubber membrane edge is sealed, and has sufficient support strength.
Among the above-mentioned technical scheme, preferably, the one end of side rubber membrane is fixed on the jar wall circumference, fixes the metal block in fixed height department welding, and the retainer plate adopts square angle bar, and the outer wall carries out anticorrosive treatment.
In the technical scheme, preferably, the diameter of the upper surface of the floating disc is 1.2-1.3 of the diameter of the lower surface; the diameter of the upper surface of the floating plate is 0.80-0.90 of the diameter of the storage tank.
In the technical scheme, preferably, the material of the inflatable capsule is the same as that of the rubber membrane, the inflatable capsule and the rubber membrane are welded at high temperature through glue, and finally the side rubber membrane at the edge of the tank wall is combined with the rubber membrane at the bottom to form a complete closed flexible rubber membrane.
In the above technical solution, preferably, the rubber film is formed of butadiene-acrylonitrile rubber having a thickness of 2 mm.
Among the above-mentioned technical scheme, preferably, the gasket is the rubber gasket, and the rubber gasket periphery is equipped with the metal stationary blade.
In the technical scheme, preferably, the side rubber membranes in the vertical direction of the floating disc are sequentially fixed on the tank wall, bolts and gaskets are adopted for fixing and sealing, and the overlapped parts of the connected rubber membranes are used for seams; and after the rubber membranes on the tank wall are fixedly installed, sequentially sealing the seams of the adjacent rubber membranes.
In order to solve the second problem, the invention adopts the following technical scheme: the application of a full-contact flexible light rubber floating disc is used for sealing a floating roof storage tank.
The flexible rubber floating disc of this patent relies on its self soft characteristic and self buoyancy to cover the liquid level completely, has thoroughly eliminated the face of volatilizing of storage medium to the free floating of flexible rubber membrane has satisfied the demand that the jar interior gas phase space volume that the storage tank size breathed and causes changes, has cut off oil level and external passageway, thereby has thoroughly eliminated because of the volatile storage tank VOC who causes of liquid level discharges. Compared with the prior art, this patent has following advantage: (1) the oil gas volatilization in the tank is completely eliminated, and the environmental pollution is avoided; (2) the oil gas accumulation of the gas phase space in the tank is eliminated, and the explosion risk of the storage tank is eliminated. (3) The corrosion of oil products to the upper part of the tank wall and the tank top is eliminated; (4) because the flexible floating plate is completely sealed and the thickness of the floating plate is very small, the effective volume of the storage tank can be increased, and the maximum storage liquid level of the storage tank is improved. (5) Because the gas phase space at the bottom of the flexible floating disc is very small and is only the space between the inflatable capsule and the oil surface, when the storage tank discharges oil outwards, the floating disc can fall to the bottom of the tank completely, the throughput of the storage tank is increased, and a better technical effect is achieved.
Drawings
Fig. 1 is a schematic front view of installation of a full-contact flexible lightweight rubber floating disc.
FIG. 2 is a schematic view of the fixation of a full-contact flexible lightweight rubber floating plate.
Fig. 3 is a schematic front view of the installation of the full-contact flexible lightweight rubber floating plate.
In fig. 1-3, 1, the filler pipe; 2. a fixed point A; 3. a fixed point B; 4. an air-filled capsule; 5. a rubber film; 6. welding seams; 7. a gasket; 8. a tank wall; 9. a metal fixing sheet; 10. fixing the bolt; 11. fixing the metal block; 12. the top of the floating plate; 13. the bottom edge of the floating plate.
The present invention will be further illustrated by the following examples, but is not limited to these examples.
Detailed Description
[ example 1 ]
The utility model provides a flexible light rubber floating disc of full contact, as shown in fig. 1-3, includes top rubber membrane, aerifys capsule, side rubber membrane, fixed device, the edge of floating disc is fixed at storage tank jar wall inboard position through side rubber membrane, and top rubber membrane transversal arrangement is in storage tank inner space, aerifys the capsule and is located under the top rubber membrane and meet with top rubber membrane, constitutes the flexible light rubber floating disc of full contact, floating disc upper surface diameter is greater than the lower surface diameter, and floating disc upper surface diameter is less than the storage tank diameter, the total area of aerifing the capsule is 80% of top rubber membrane total area. The rubber membrane is formed by splicing a plurality of rubber membranes, and the joints need to be sealed and meet the strength requirement. The inflatable capsules are strip-shaped and are uniformly arranged under the rubber membrane at the top. When the side rubber membranes at the two ends of the rubber membrane are fixed with the tank wall and the edge of the floating plate, metal fixing pieces, gaskets and bolts are needed, the sealing of the fixing positions at the edge of the rubber membrane is guaranteed, and the supporting strength is enough. One end of the side rubber film is fixed on the circumference of the tank wall, a metal block is welded and fixed at a fixed height, the fixing ring adopts square angle iron, and the outer wall is subjected to antiseptic treatment. The diameter of the upper surface of the floating disc is 1.2 times of that of the lower surface; the ratio of the diameter of the upper surface of the floating plate to the diameter of the storage tank is 0.94 times. The rubber film is formed by adopting butadiene-acrylonitrile rubber with the thickness of 2 mm. The material of the inflatable capsule is the same as that of the rubber membrane, the inflatable capsule and the rubber membrane are welded at high temperature through glue, and finally the side rubber membrane at the edge of the tank wall and the rubber membrane at the bottom are combined together to form a complete closed flexible rubber membrane. The gasket is a rubber gasket, and a metal fixing piece is arranged on the periphery of the rubber gasket. Firstly, sequentially fixing side rubber membranes in the vertical direction of a floating disc on the wall of a tank, fixing and sealing by adopting bolts and gaskets, and using the overlapped parts of the connected rubber membranes for seaming; and after the rubber membranes on the tank wall are fixedly installed, sequentially sealing the seams of the adjacent rubber membranes.
This floating plate is unobstructed when the operation in jar, and the rubber membrane of floating plate does not take place trouble such as extrusion, and when full liquid level, the floating plate is inseparable with the liquid level laminating, does not have unnecessary space below the floating plate in the jar, and storage tank operation liquid level reaches 100% of design safety liquid level, but liquid level upper portion has a small amount of rubber membrane to fold, and the waste of the liquid film area that causes has improved the processing cost of this floating plate.
[ example 2 ]
The utility model provides a flexible light rubber floating disc of full contact, as shown in fig. 1-3, includes top rubber membrane, aerifys capsule, side rubber membrane, fixed device, the edge of floating disc is fixed at storage tank jar wall inboard position through side rubber membrane, and top rubber membrane transversal arrangement is in storage tank inner space, aerifys the capsule and is located under the top rubber membrane and meet with top rubber membrane, constitutes the flexible light rubber floating disc of full contact, floating disc upper surface diameter is greater than the lower surface diameter, and floating disc upper surface diameter is less than the storage tank diameter, the total area of aerifing the capsule is 20% of top rubber membrane total area. The rubber membrane is formed by splicing a plurality of rubber membranes, and the joints need to be sealed and meet the strength requirement. The inflatable capsules are strip-shaped and are uniformly arranged under the rubber membrane at the top. When the side rubber membranes at the two ends of the rubber membrane are fixed with the tank wall and the edge of the floating plate, metal fixing pieces, gaskets and bolts are needed, the sealing of the fixing positions at the edge of the rubber membrane is guaranteed, and the supporting strength is enough. One end of the side rubber film is fixed on the circumference of the tank wall, a metal block is welded and fixed at a fixed height, the fixing ring adopts square angle iron, and the outer wall is subjected to antiseptic treatment. The ratio of the diameter of the upper surface of the floating disc to the diameter of the lower surface of the floating disc is 1.2 times; the ratio of the diameter of the upper surface of the floating plate to the diameter of the storage tank is 0.94 times. The rubber film is formed by adopting butadiene-acrylonitrile rubber with the thickness of 2 mm. The material of the inflatable capsule is the same as that of the rubber membrane, the inflatable capsule and the rubber membrane are welded at high temperature through glue, and finally the side rubber membrane at the edge of the tank wall and the rubber membrane at the bottom are combined together to form a complete closed flexible rubber membrane. The gasket is a rubber gasket, and a metal fixing piece is arranged on the periphery of the rubber gasket. Firstly, sequentially fixing side rubber membranes in the vertical direction of a floating disc on the wall of a tank, fixing and sealing by adopting bolts and gaskets, and using the overlapped parts of the connected rubber membranes for seaming; and after the rubber membranes on the tank wall are fixedly installed, sequentially sealing the seams of the adjacent rubber membranes.
This floating plate when jar operation patency is relatively poor, and the rubber membrane of floating plate takes place slight extrusion trouble when low liquid level, and when full liquid level, the floating plate is inseparable with the liquid level laminating, does not have unnecessary space below the floating plate in the jar, and storage tank operation liquid level reaches the 95% of design safety liquid level.
[ example 3 ]
The utility model provides a flexible light rubber floating disc of full contact, as shown in fig. 1-3, includes top rubber membrane, aerifys capsule, side rubber membrane, fixed device, the edge of floating disc is fixed at storage tank jar wall inboard position through side rubber membrane, and top rubber membrane transversal arrangement is in storage tank inner space, aerifys the capsule and is located under the top rubber membrane and meet with top rubber membrane, constitutes the flexible light rubber floating disc of full contact, floating disc upper surface diameter is greater than the lower surface diameter, and floating disc upper surface diameter is less than the storage tank diameter, the total area of aerifing the capsule is 50% of top rubber membrane total area. The rubber membrane is formed by splicing a plurality of rubber membranes, and the joints need to be sealed and meet the strength requirement. The inflatable capsules are strip-shaped and are uniformly arranged under the rubber membrane at the top. When the side rubber membranes at the two ends of the rubber membrane are fixed with the tank wall and the edge of the floating plate, metal fixing pieces, gaskets and bolts are needed, the sealing of the fixing positions at the edge of the rubber membrane is guaranteed, and the supporting strength is enough. One end of the side rubber film is fixed on the circumference of the tank wall, a metal block is welded and fixed at a fixed height, the fixing ring adopts square angle iron, and the outer wall is subjected to antiseptic treatment. The diameter of the upper surface of the floating disc is 1.2 times of the diameter of the lower surface; the diameter of the upper surface of the floating plate is 0.8 times of the diameter of the storage tank. The rubber film is formed by adopting butadiene-acrylonitrile rubber with the thickness of 2 mm. The material of the inflatable capsule is the same as that of the rubber membrane, the inflatable capsule and the rubber membrane are welded at high temperature through glue, and finally the side rubber membrane at the edge of the tank wall and the rubber membrane at the bottom are combined together to form a complete closed flexible rubber membrane. The gasket is a rubber gasket, and a metal fixing piece is arranged on the periphery of the rubber gasket. Firstly, sequentially fixing side rubber membranes in the vertical direction of a floating disc on the wall of a tank, fixing and sealing by adopting bolts and gaskets, and using the overlapped parts of the connected rubber membranes for seaming; and after the rubber membranes on the tank wall are fixedly installed, sequentially sealing the seams of the adjacent rubber membranes.
This floating plate is comparatively unobstructed when jar moves, and the rubber membrane of floating plate does not take place the extrusion trouble when moving, and when full liquid level, the floating plate is inseparable with the liquid level laminating, does not have unnecessary space below the floating plate in the jar, and storage tank operation liquid level reaches the 100% of design safety liquid level.
[ example 4 ]
The utility model provides a flexible light rubber floating disc of full contact, as shown in fig. 1-3, includes top rubber membrane, aerifys capsule, side rubber membrane, fixed device, the edge of floating disc is fixed at storage tank jar wall inboard position through side rubber membrane, and top rubber membrane transversal arrangement is in storage tank inner space, aerifys the capsule and is located under the top rubber membrane and meet with top rubber membrane, constitutes the flexible light rubber floating disc of full contact, floating disc upper surface diameter is greater than the lower surface diameter, and floating disc upper surface diameter is less than the storage tank diameter, the total area of aerifing the capsule is 50% of top rubber membrane total area. The rubber membrane is formed by splicing a plurality of rubber membranes, and the joints need to be sealed and meet the strength requirement. The inflatable capsules are strip-shaped and are uniformly arranged under the rubber membrane at the top. When the side rubber membranes at the two ends of the rubber membrane are fixed with the tank wall and the edge of the floating plate, metal fixing pieces, gaskets and bolts are needed, the sealing of the fixing positions at the edge of the rubber membrane is guaranteed, and the supporting strength is enough. One end of the side rubber film is fixed on the circumference of the tank wall, a metal block is welded and fixed at a fixed height, the fixing ring adopts square angle iron, and the outer wall is subjected to antiseptic treatment. The diameter of the upper surface of the floating disc is 1.1 times of that of the lower surface; the ratio of the diameter of the upper surface of the floating plate to the diameter of the storage tank is 0.9 times. The rubber film is formed by adopting butadiene-acrylonitrile rubber with the thickness of 2 mm. The material of the inflatable capsule is the same as that of the rubber membrane, the inflatable capsule and the rubber membrane are welded at high temperature through glue, and finally the side rubber membrane at the edge of the tank wall and the rubber membrane at the bottom are combined together to form a complete closed flexible rubber membrane. The gasket is a rubber gasket, and a metal fixing piece is arranged on the periphery of the rubber gasket. Firstly, sequentially fixing side rubber membranes in the vertical direction of a floating disc on the wall of a tank, fixing and sealing by adopting bolts and gaskets, and using the overlapped parts of the connected rubber membranes for seaming; and after the rubber membranes on the tank wall are fixedly installed, sequentially sealing the seams of the adjacent rubber membranes.
This floating plate when jar operation patency is good, and the rubber membrane of floating plate does not take place to extrude the trouble, and when full liquid level, the floating plate is inseparable with the liquid level laminating, does not have unnecessary space below the floating plate in the jar, and storage tank operation liquid level reaches 90% of design safety liquid level.
[ example 5 ]
The utility model provides a flexible light rubber floating disc of full contact, as shown in fig. 1-3, includes top rubber membrane, aerifys capsule, side rubber membrane, fixed device, the edge of floating disc is fixed at storage tank jar wall inboard position through side rubber membrane, and top rubber membrane transversal arrangement is in storage tank inner space, aerifys the capsule and is located under the top rubber membrane and meet with top rubber membrane, constitutes the flexible light rubber floating disc of full contact, floating disc upper surface diameter is greater than the lower surface diameter, and floating disc upper surface diameter is less than the storage tank diameter, the total area of aerifing the capsule is 50% of top rubber membrane total area. The rubber membrane is formed by splicing a plurality of rubber membranes, and the joints need to be sealed and meet the strength requirement. The inflatable capsules are strip-shaped and are uniformly arranged under the rubber membrane at the top. When the side rubber membranes at the two ends of the rubber membrane are fixed with the tank wall and the edge of the floating plate, metal fixing pieces, gaskets and bolts are needed, the sealing of the fixing positions at the edge of the rubber membrane is guaranteed, and the supporting strength is enough. One end of the side rubber film is fixed on the circumference of the tank wall, a metal block is welded and fixed at a fixed height, the fixing ring adopts square angle iron, and the outer wall is subjected to antiseptic treatment. The diameter of the upper surface of the floating disc is 1.6 times of that of the lower surface; the ratio of the diameter of the upper surface of the floating plate to the diameter of the storage tank is 0.9 times. The rubber film is formed by adopting butadiene-acrylonitrile rubber with the thickness of 2 mm. The material of the inflatable capsule is the same as that of the rubber membrane, the inflatable capsule and the rubber membrane are welded at high temperature through glue, and finally the side rubber membrane at the edge of the tank wall and the rubber membrane at the bottom are combined together to form a complete closed flexible rubber membrane. The gasket is a rubber gasket, and a metal fixing piece is arranged on the periphery of the rubber gasket. Firstly, sequentially fixing side rubber membranes in the vertical direction of a floating disc on the wall of a tank, fixing and sealing by adopting bolts and gaskets, and using the overlapped parts of the connected rubber membranes for seaming; and after the rubber membranes on the tank wall are fixedly installed, sequentially sealing the seams of the adjacent rubber membranes.
This floating plate when jar operation patency is good, and the rubber membrane of floating plate takes place slight extrusion trouble when low liquid level, and when full liquid level, the floating plate is inseparable with the liquid level laminating, does not have unnecessary space below the floating plate in the jar, and storage tank operation liquid level reaches 100% of design safety liquid level.
[ example 6 ]
The installation mode of the floating plate is described by taking a 5000 cubic meter inner floating roof storage tank as an example:
the diameter of the 5000 cubic meters storage tank is 24m, and the height of the tank wall is 16 m. After the tank is emptied, the rubber membrane and the gas-filled capsule are first designed and processed. The rubber membrane can be formed by splicing a plurality of rubber membranes, and the joint is treated by adopting special glue and a high-temperature laminating technology, so that the strength and the sealing property of the joint are ensured.
The cross-sectional area of the storage tank is 452 square meters, and after the oil in the storage tank is filled, the oil at the bottom can extrude the rubber film to cause expansion; meanwhile, when the floating plate rises, in order to prevent the oil from extruding the stacked floating plates, when the flexible floating plate is designed, the diameter of the top of the floating plate is larger than that of the bottom of the floating plate, and the diameter of the top of the floating plate is slightly smaller than the inner diameter of the storage tank.
According to the storage tank height and rubber membrane elasticity, 23.2m is got to the floating plate bottom diameter of this storage tank, and 23.8m is got to the top diameter, and the rubber membrane adopts the thick 2 mm's of membrane butyl cyanide rubber, and the regional 16 air inflation capsules that evenly set up in floating plate top for the floating plate provides buoyancy when being less than the fixed point, reduces the load of floating plate dead weight to fixed point department.
This floating disc is fixed on the circumference of jar wall 8m department, at this high welding round retainer plate, the retainer plate adopts square angle bar, 4mm of wall thickness, width 50mm, the outer wall carries out anticorrosive treatment, fix the rubber membrane of the vertical direction of floating disc on the retainer plate at jar wall middle part in proper order earlier, adopt bolt and gasket fixed and sealed, continuous rubber membrane overlap portion is wide 50mm, be used for the seam, 2m is got to the width of every rubber membrane, consequently, the width of every rubber membrane is 2050mm, 8600mm is got to length. After the rubber membrane fixed mounting of jar wall is ended, carry out seam sealing in proper order to adjacent rubber membrane, will 16 inflate the rubber membrane equipartitions of capsule below the rubber membrane of bottom surface, will contact with the oil level.
Each inflatable capsule is 200mm in diameter and 1500mm in length, and the inflatable capsules are made of the same material. And welding the inflatable capsule and the rubber film through glue and high temperature. Finally, the rubber film at the edge of the tank wall is combined with the rubber film at the bottom surface to form a complete closed flexible rubber film. The liquid can be filled at the bottom of the tank for use.
The purpose of installing the inflatable capsule is to provide a space for oil to flow at the bottom of the floating disc when the storage tank is filled with oil besides providing buoyancy for the floating disc, so that the oil is prevented from excessively impacting the rubber membrane of the floating disc, and the rubber membrane is prevented from being torn.
[ example 7 ]
At 50000m3The installation mode of the floating plate is described by taking an outer floating roof tank with a dome as an example:
50000 cubic meter of storage tank with the diameter of 60m and the height of the tank wall of 22 m. After the tank is emptied, the rubber membrane and the gas-filled capsule are first designed and processed. The rubber membrane can be formed by splicing a plurality of rubber membranes, and the joint is treated by adopting special glue and a high-temperature laminating technology, so that the strength and the sealing property of the joint are ensured.
The cross section area of the storage tank is 2826 square meters, and after oil is filled in the storage tank, oil at the bottom can extrude the rubber film to cause expansion; meanwhile, when the floating plate rises, in order to prevent the oil from extruding the stacked floating plates, when the flexible floating plate is designed, the diameter of the top of the floating plate is larger than that of the bottom of the floating plate, and the diameter of the top of the floating plate is slightly smaller than the inner diameter of the storage tank.
According to the storage tank height and rubber membrane elasticity, 54m are got to the floating plate bottom diameter of this storage tank, and 72m are got to the top diameter the rubber membrane adopts the thick 2 mm's of membrane butyl cyanide rubber, and the regional 32 air inflation capsules that evenly set up in floating plate top for the floating plate provides buoyancy when being less than the fixed point, reduces the load of floating plate dead weight to the fixed point department.
This floating disc is fixed on the circumference of jar wall 12m department, at this high welding round retainer plate, the retainer plate adopts square angle bar, 4mm of wall thickness, width 50mm, the outer wall carries out anticorrosive treatment, fix the rubber membrane of the vertical direction of floating disc on the retainer plate at jar wall middle part in proper order earlier, adopt bolt and gasket fixed and sealed, continuous rubber membrane overlap the partial width 100mm for the seam, 2m is got to the width of every rubber membrane, consequently, the width of every rubber membrane is 2100mm, length is got 11000 mm. After the rubber membrane fixed mounting of jar wall is ended, carry out seam sealing in proper order to adjacent rubber membrane, will 32 inflate the rubber membrane equipartitions of capsule below the rubber membrane of bottom surface, will contact with the oil level.
Each inflatable capsule has the diameter of 200mm and the length of 3000mm, and the inflatable capsules are made of the same material. And welding the inflatable capsule and the rubber film through glue and high temperature. Finally, the rubber film at the edge of the tank wall is combined with the rubber film at the bottom surface to form a complete closed flexible rubber film. The liquid can be filled at the bottom of the tank for use.
The purpose of installing the inflatable capsule is to provide a space for oil to flow at the bottom of the floating disc when the storage tank is filled with oil besides providing buoyancy for the floating disc, so that the oil is prevented from excessively impacting the rubber membrane of the floating disc, and the rubber membrane is prevented from being torn.
[ COMPARATIVE EXAMPLE 1 ]
The utility model provides a flexible light rubber floating disc of full contact, as shown in fig. 1-3, includes top rubber membrane, aerifys capsule, side rubber membrane, fixed device, the edge of floating disc is fixed at storage tank jar wall inboard position through side rubber membrane, and top rubber membrane transversal arrangement is in storage tank inner space, aerifys the capsule and is located under the top rubber membrane and meet with top rubber membrane, constitutes the flexible light rubber floating disc of full contact, floating disc upper surface diameter is greater than the lower surface diameter, and floating disc upper surface diameter is less than the storage tank diameter, the total area of aerifing the capsule is 10% of top rubber membrane total area. The rubber membrane is formed by splicing a plurality of rubber membranes, and the joints need to be sealed and meet the strength requirement. The inflatable capsules are strip-shaped and are uniformly arranged under the rubber membrane at the top. When the side rubber membranes at the two ends of the rubber membrane are fixed with the tank wall and the edge of the floating plate, metal fixing pieces, gaskets and bolts are needed, the sealing of the fixing positions at the edge of the rubber membrane is guaranteed, and the supporting strength is enough. One end of the side rubber film is fixed on the circumference of the tank wall, a metal block is welded and fixed at a fixed height, the fixing ring adopts square angle iron, and the outer wall is subjected to antiseptic treatment. The diameter of the upper surface of the floating disc is 1.0 time of that of the lower surface; the ratio of the diameter of the upper surface of the floating plate to the diameter of the storage tank is 0.5 times. The rubber film is formed by adopting butadiene-acrylonitrile rubber with the thickness of 2 mm. The material of the inflatable capsule is the same as that of the rubber membrane, the inflatable capsule and the rubber membrane are welded at high temperature through glue, and finally the side rubber membrane at the edge of the tank wall and the rubber membrane at the bottom are combined together to form a complete closed flexible rubber membrane. The gasket is a rubber gasket, and a metal fixing piece is arranged on the periphery of the rubber gasket. Firstly, sequentially fixing side rubber membranes in the vertical direction of a floating disc on the wall of a tank, fixing and sealing by adopting bolts and gaskets, and using the overlapped parts of the connected rubber membranes for seaming; and after the rubber membranes on the tank wall are fixedly installed, sequentially sealing the seams of the adjacent rubber membranes.
This floating plate when jar operation patency is bad, and the rubber membrane of floating plate takes place serious extrusion trouble when low liquid level, and when full liquid level, the floating plate is inseparable with the liquid level laminating, does not have unnecessary space below the floating plate in the jar, but storage tank operation liquid level reaches 70% of design safety liquid level, and if the liquid level continued to rise, this floating plate will be torn.
[ COMPARATIVE EXAMPLE 2 ]
The utility model provides a flexible light rubber floating disc of full contact, as shown in fig. 1-3, includes top rubber membrane, aerifys capsule, side rubber membrane, fixed device, the edge of floating disc is fixed at storage tank jar wall inboard position through side rubber membrane, and top rubber membrane transversal arrangement is in storage tank inner space, aerifys the capsule and is located under the top rubber membrane and meet with top rubber membrane, constitutes the flexible light rubber floating disc of full contact, floating disc upper surface diameter is greater than the lower surface diameter, and floating disc upper surface diameter is less than the storage tank diameter, the total area of aerifing the capsule is 60% of top rubber membrane total area. The rubber membrane is formed by splicing a plurality of rubber membranes, and the joints need to be sealed and meet the strength requirement. The inflatable capsules are strip-shaped and are uniformly arranged under the rubber membrane at the top. When the side rubber membranes at the two ends of the rubber membrane are fixed with the tank wall and the edge of the floating plate, metal fixing pieces, gaskets and bolts are needed, the sealing of the fixing positions at the edge of the rubber membrane is guaranteed, and the supporting strength is enough. One end of the side rubber film is fixed on the circumference of the tank wall, a metal block is welded and fixed at a fixed height, the fixing ring adopts square angle iron, and the outer wall is subjected to antiseptic treatment. The diameter of the upper surface of the floating disc is 1.8 times of that of the lower surface; the ratio of the diameter of the upper surface of the floating plate to the diameter of the storage tank is 0.8 times. The rubber film is formed by adopting butadiene-acrylonitrile rubber with the thickness of 2 mm. The material of the inflatable capsule is the same as that of the rubber membrane, the inflatable capsule and the rubber membrane are welded at high temperature through glue, and finally the side rubber membrane at the edge of the tank wall and the rubber membrane at the bottom are combined together to form a complete closed flexible rubber membrane. The gasket is a rubber gasket, and a metal fixing piece is arranged on the periphery of the rubber gasket. Firstly, sequentially fixing side rubber membranes in the vertical direction of a floating disc on the wall of a tank, fixing and sealing by adopting bolts and gaskets, and using the overlapped parts of the connected rubber membranes for seaming; and after the rubber membranes on the tank wall are fixedly installed, sequentially sealing the seams of the adjacent rubber membranes.
This floating plate when jar operation patency is bad, and the rubber membrane of floating plate takes place serious extrusion trouble when high liquid level, and when full liquid level, the floating plate is inseparable with the liquid level laminating, has unnecessary space below the floating plate in the jar, and storage tank operation liquid level reaches 100% of design safety liquid level, nevertheless has more unnecessary rubber membrane on the liquid level, has not only wasted the material, causes the unable risk that extends and lead to tearing that the floating plate extrusion led to the fact moreover.
Claims (7)
1. A full-contact flexible light rubber floating disc comprises a top rubber film, an inflatable capsule and a side rubber film, wherein the edge of the floating disc is fixed at the inner side position of a tank wall of a storage tank through the side rubber film, the top rubber film is transversely arranged in the inner space of the storage tank, the inflatable capsule is positioned under the top rubber film and is connected with the top rubber film, the side rubber film at the edge of the tank wall is combined with the top rubber film to form a complete closed flexible rubber film to form the full-contact flexible light rubber floating disc, the total area of the inflatable capsule is 20-80% of the total area of the top rubber film,
the metal block is welded and fixed at the fixed height of the inner wall of the storage tank, the end part of the side rubber membrane is fixed on the fixed metal block through bolts at the side surface and the lower surface of the fixed metal block, rubber gaskets are arranged on two sides of the end part of the side rubber membrane, and a metal fixing sheet is arranged on the outer side of the rubber gasket far away from the fixed metal block.
2. The full-contact flexible light-weight rubber floating disc as claimed in claim 1, wherein the top rubber film and the side rubber films are formed by splicing a plurality of rubber films, and joints need to be sealed and meet the strength requirement.
3. The full-contact flexible lightweight rubber floating disc as claimed in claim 1, wherein the inflatable bladder is in the shape of a strip uniformly disposed under the top rubber membrane.
4. The full-contact flexible lightweight rubber floating disc as claimed in claim 1, wherein the fixed metal block is constructed as a fixed ring, the fixed ring is made of square angle iron, and the outer wall is subjected to corrosion prevention treatment.
5. The full-contact flexible lightweight rubber floating disc as claimed in claim 1, wherein the air-filled bladder is made of the same material as the top rubber membrane and the side rubber membranes, and the air-filled bladder and the top rubber membrane are welded by glue and high temperature.
6. The full-contact flexible light-weight rubber floating disc as claimed in claim 1, wherein the top rubber film and the side rubber film are made of butadiene cyanide rubber with the thickness of 2 mm.
7. Use of a full contact flexible lightweight rubber floating disc according to any of claims 1 to 6 in floating roof tank sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810426746.7A CN110451104B (en) | 2018-05-07 | 2018-05-07 | Full-contact flexible light rubber floating disc and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810426746.7A CN110451104B (en) | 2018-05-07 | 2018-05-07 | Full-contact flexible light rubber floating disc and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110451104A CN110451104A (en) | 2019-11-15 |
| CN110451104B true CN110451104B (en) | 2021-09-10 |
Family
ID=68471744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810426746.7A Active CN110451104B (en) | 2018-05-07 | 2018-05-07 | Full-contact flexible light rubber floating disc and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110451104B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB890422A (en) * | 1960-02-18 | 1962-02-28 | Greengate And Irwell Rubber Co | Improvements in floating screens for storage tanks |
| FR2447335A1 (en) * | 1979-01-25 | 1980-08-22 | Coquant Raymond | Airtight storage tank with telescopic roof - is sealed by membrane joining roof to tank walls |
| DE3033646A1 (en) * | 1980-09-06 | 1982-04-29 | Menzel Gmbh & Co, 7000 Stuttgart | Sewage basin cover - by sealing inflatable float ring and domed flexible sheath |
| CH693207A5 (en) * | 2002-10-21 | 2003-04-15 | H U Kohli Ag Guelle Und Umwelt | Odor trap for animal residue container has cover panel to float on surface of liquid manure via inflatable chambers |
| EP1801037A1 (en) * | 2005-12-23 | 2007-06-27 | agraferm technologies AG | Cover for slurry tank, biogas storage and similar and method of covering a slurry tank or biogas storage |
| CN201284086Y (en) * | 2008-08-04 | 2009-08-05 | 中国石化集团胜利石油管理局钻井工艺研究院 | Underwater floating roof tank |
| CN104787505A (en) * | 2015-04-20 | 2015-07-22 | 中国石油化工股份有限公司 | Safety protection method for floating roof storage tank |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10316193A (en) * | 1997-05-15 | 1998-12-02 | Ishikawajima Harima Heavy Ind Co Ltd | Deck repairing method for floating roof-type storage tank |
-
2018
- 2018-05-07 CN CN201810426746.7A patent/CN110451104B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB890422A (en) * | 1960-02-18 | 1962-02-28 | Greengate And Irwell Rubber Co | Improvements in floating screens for storage tanks |
| FR2447335A1 (en) * | 1979-01-25 | 1980-08-22 | Coquant Raymond | Airtight storage tank with telescopic roof - is sealed by membrane joining roof to tank walls |
| DE3033646A1 (en) * | 1980-09-06 | 1982-04-29 | Menzel Gmbh & Co, 7000 Stuttgart | Sewage basin cover - by sealing inflatable float ring and domed flexible sheath |
| CH693207A5 (en) * | 2002-10-21 | 2003-04-15 | H U Kohli Ag Guelle Und Umwelt | Odor trap for animal residue container has cover panel to float on surface of liquid manure via inflatable chambers |
| EP1801037A1 (en) * | 2005-12-23 | 2007-06-27 | agraferm technologies AG | Cover for slurry tank, biogas storage and similar and method of covering a slurry tank or biogas storage |
| CN201284086Y (en) * | 2008-08-04 | 2009-08-05 | 中国石化集团胜利石油管理局钻井工艺研究院 | Underwater floating roof tank |
| CN104787505A (en) * | 2015-04-20 | 2015-07-22 | 中国石油化工股份有限公司 | Safety protection method for floating roof storage tank |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110451104A (en) | 2019-11-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4308968A (en) | Secondary seal for tank having floating roof | |
| WO2019205704A1 (en) | Modular infinite volume combined tank | |
| CN108190266B (en) | Assembled full liquid floating plate that connects | |
| CN106966076A (en) | A kind of assembled Full connected honeycomb floating plate | |
| CN110451102B (en) | Flexible light rubber floating disc sealing ring and application thereof | |
| CN110451104B (en) | Full-contact flexible light rubber floating disc and application thereof | |
| CN105715888A (en) | Tight flange connecting piece | |
| CN105109848A (en) | Floating disc edge sealing device of floating-roof oil tank | |
| CN210392226U (en) | Grid beam assembled punching press flotation tank type floating disc | |
| US3075668A (en) | Resilient foam seal for floating roof | |
| CN207827020U (en) | Assembled connects liquid floating plate entirely | |
| CN209209525U (en) | A kind of inner floating roof of stock tank with high sealing performance | |
| CN214778190U (en) | Oil tank waterproof skirt | |
| CN111186641A (en) | All-welded all-aluminum honeycomb type inner floating disc | |
| CN108190267A (en) | For the edge triple sealing system of External floating roof tank | |
| CN107349698A (en) | A kind of activated carbon filtering tank | |
| CN219097588U (en) | Storage tank reinforcing explosion suppression type sealing device | |
| US4369150A (en) | Liquid wall flow collector for chemical process tower | |
| CN208886115U (en) | A kind of bellows valve rod seal apparatus | |
| CN109881957B (en) | Sealing structure between metal plate and impermeable geomembrane | |
| CN217874279U (en) | Bellows gate valve with well bucket seal structure | |
| CN111392253A (en) | Efficient full-compensation elastic sealing device for floating roof storage tank without oil-gas space and installation method | |
| CN220316011U (en) | A cubic seal structure for floating roof storage tank | |
| CN101692353B (en) | Leakage-detectable constant-stress sealing gasket | |
| CN215045517U (en) | Airtight stainless steel elastic large-compensation mechanical sealing structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220303 Address after: Yanan City, Shandong province Qingdao City three road 266071 No. 218 Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Patentee after: Sinopec Safety Engineering Research Institute Co., Ltd Address before: Yanan City, Shandong province Qingdao City three road 266071 No. 218 Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: Qingdao Safety Engineering Research Institute of Sinopec |
|
| TR01 | Transfer of patent right |