CN110454573B - Composite sealing device with super-amphiphobic surface for floating roof storage tank and mounting method thereof - Google Patents
Composite sealing device with super-amphiphobic surface for floating roof storage tank and mounting method thereof Download PDFInfo
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- CN110454573B CN110454573B CN201810427709.8A CN201810427709A CN110454573B CN 110454573 B CN110454573 B CN 110454573B CN 201810427709 A CN201810427709 A CN 201810427709A CN 110454573 B CN110454573 B CN 110454573B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
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Abstract
The invention relates to a super-amphiphobic surface composite sealing device for a floating roof storage tank and an installation method thereof, and mainly solves the problems of poor sealing effect and poor safety in the prior art. The invention adopts the technical scheme that the super-amphiphobic surface composite sealing device for the floating roof storage tank and the installation method thereof are adopted, the super-amphiphobic interface material is adopted for the primary sealing surface, and the labyrinth sealing is adopted for the secondary sealing, so that the problems are better solved, and the device can be used for sealing the floating roof storage tank.
Description
Technical Field
The invention belongs to the technical field of oil and gas storage and transportation, and particularly relates to a super-amphiphobic surface composite sealing device for a floating roof storage tank and an installation method thereof, which can be used for sealing between a floating disc and a tank wall.
Background
The large-scale storage tank faces increasingly severe sealing safety problems, and the storage tank sealing ring is in fire accidents. The floating plate edge sealing device is an important component for reducing oil gas volatilization and ensuring the safety of the storage tank, but when the tank wall of the storage tank deforms or is sealed and has defects, oil gas leaks to form a flammable and combustible region, and once the floating plate edge sealing device meets ignition sources such as open fire, thunder static electricity and the like, an explosion accident can occur. Meanwhile, the efficient sealing device can effectively reduce the discharge of VOCs gas of the storage tank, and is favorable for environmental protection. The utility model discloses a CN 204078521U's utility model patent discloses a primary seal device, installs one set of initiative fire extinguishing systems additional on filling formula sealing device. The invention patent application of CN105460436A discloses a sealing pressure self-adjusting type floating plate sealing device of an external floating roof storage tank, which adopts the principle that the sealing pressure is adjusted by utilizing the movement of four connecting rods, the moving parts of the structure are too many, the reliability is tested under the long-term use, and in addition, the oil-gas space between the primary sealing and the secondary sealing of the device is larger, and the flash explosion risk is larger. The technology can not well meet the sealing requirement of the storage tank floating plate, and has the defects of poor sealing effect, large oil-gas space and the like. The super-amphiphobic nano interface material has the surface characteristics of hydrophobicity and oleophobicity, and can inhibit oil gas from diffusing in an annular gap between the floating plate and the tank wall, so that oil gas leakage can be effectively reduced.
Disclosure of Invention
The invention aims to solve the technical problems of poor sealing effect and poor safety in the prior art, and provides a novel super-amphiphobic surface composite sealing device for a floating roof storage tank, which has the advantages of good sealing effect and good safety. The second technical problem to be solved by the present invention is to provide a method for installing the composite sealing device with super-amphiphobic surface for the floating roof storage tank 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: a composite sealing device with a super-double-hydrophobic surface for a floating roof storage tank comprises a bearing plate, a diaphragm, a labyrinth groove, secondary sealing sponge, an upper fixing plate, a bolt, a gasket, a nut, a spring, a rubber belting, primary sealing sponge, an outer supporting plate, a lower fixing plate and an inner supporting plate, wherein primary sealing comprises the upper fixing plate, the spring, the rubber belting, the primary sealing sponge, the outer supporting plate, the lower fixing plate and the inner supporting plate; the secondary seal comprises a bearing plate, a diaphragm, a labyrinth groove, secondary seal sponge, a bolt, a gasket and a nut; in the primary seal, the inner supporting plate is attached to the edge of the floating disc, the upper fixing plate and the lower fixing plate are respectively connected with the inner supporting plate, one side of the spring is connected with the inner supporting plate, the other side of the spring is connected with the outer supporting plate, and the outer supporting plate can slide along the inner side and the outer side between the upper fixing plate and the lower fixing plate; one side of the outer support plate is connected with the spring, and the other side of the outer support plate is attached to the rubber belting; the outer side of the rubber wrapping belt is provided with a polymer coating with a nano interface, the polymer coating has super-amphiphobic property, and the other side of the rubber wrapping belt is attached to the tank wall; in the secondary seal, there is a layer of diaphragm outside the bearing plate, the opposite side of the diaphragm is the secondary seal sponge, the secondary seal sponge is laminated with the pot wall, there is a labyrinth groove in the position of laminating with the pot wall, the secondary seal sponge is closely laminated on the pot wall under the joint extrusion of bearing plate and top dead plate, the other side of the bearing plate is closely fixed on the floating plate through the bolt, gasket, nut.
In the technical scheme, preferably, each group of primary sealing adopts three springs to increase reliability, one group of springs is arranged every other one to two meters along the circumferential direction of the storage tank, and the primary sealing device is tightly attached to the wall of the tank under the common elastic force action of the primary sealing sponge and the springs; when the gap between the edge of the floating disc and the wall of the tank is reduced, the primary sealing sponge is squeezed and compressed, and is tightly attached to the wall of the tank under the action of the elastic force of the spring; when the gap between the edge of the floating plate and the wall of the tank is enlarged, the extrusion force applied to the primary sealing sponge is reduced and expanded, and the primary sealing sponge is supported by the spring and is attached to the wall of the tank at any time.
In the above technical scheme, preferably, the secondary seal adopts a labyrinth seal structure, and a labyrinth groove is arranged at the joint part of the secondary seal and the tank wall.
In the above technical solution, preferably, the outer side of the primary sealing sponge is wrapped by a rubber wrapping tape, and the outer side of the rubber wrapping tape is a polymer coating with a nano interface, and the polymer coating has a super-amphiphobic property.
In the above technical scheme, preferably, one side of the outer support plate is attached to the rubber wrapping belt, the primary sealing sponge is positioned by the upper fixing plate and the lower fixing plate, and the primary sealing device is installed in the gap between the edges of the floating plate.
In the technical scheme, preferably, the elastic sealing sponge and the spring are adopted, so that the design requirement of +/-100 mm deformation of the tank wall can be met.
In the above technical scheme, preferably, the rubber wrapping belt is made of a nitrile rubber material and has an electrostatic conducting function.
In the above technical solution, preferably, the surface of the spring is made of a galvanized material.
In the above technical solution, preferably, the sealing sponge is made of a polyurethane elastic material.
In order to solve the second problem, the invention adopts the following technical scheme: a method for installing a super-amphiphobic surface composite sealing device for a floating roof storage tank comprises the following steps:
(1) firstly, fixing an inner supporting plate at the edge of a floating disc, then fixedly connecting a lower fixing plate with the inner supporting plate, fixing one side of a spring on the inner supporting plate, and connecting the other side of the spring with an outer supporting plate;
(2) the method comprises the following steps of putting a primary sealing sponge into a plastic film for vacuumizing, compressing the primary sealing sponge to a gap between the tank wall and the edge of a floating plate, wrapping a rubber wrapping belt with a super-amphiphobic coating outside the compressed primary sealing sponge, extruding an outer supporting plate and a spring, and putting the rubber wrapping belt and the primary sealing sponge between the outer supporting plate and the tank wall;
(3) fixedly connecting the upper fixing plate with the inner supporting plate;
(4) tearing off the plastic film outside the primary sealing sponge, and releasing the elasticity of the primary sealing sponge; under the combined action of the spring and the primary sealing sponge, the rubber wrapping tape is tightly attached to the wall of the tank to form primary sealing.
(5) Putting the secondary sealing sponge into a plastic film for vacuumizing, and compressing the secondary sealing sponge;
(6) placing the compressed secondary sealing sponge above the upper fixing plate;
(7) wrapping a diaphragm on the side of the pressure bearing plate close to the tank wall;
(8) extruding a pressure bearing plate and a diaphragm to form secondary sealing sponge, and tightly fixing the other side of the pressure bearing plate on the floating disc through bolts, gaskets and nuts;
(9) tearing off the plastic film outside the secondary sealing sponge, and releasing the elasticity of the secondary sealing sponge; the secondary sealing sponge is tightly attached to the tank wall to form secondary sealing, and the pressure-bearing plate always keeps the pressing force in the direction of the tank wall.
In the invention, the super-amphiphobic surface refers to a polymer coating with a nano interface on the outer side of a rubber wrapping tape, and the polymer coating has the characteristics of oleophobicity and hydrophobicity.
The invention aims to provide a super-amphiphobic surface composite sealing device for a floating roof storage tank and an installation method thereof.
Drawings
Fig. 1 is a schematic view of a composite sealing device.
FIG. 2 is a schematic view of the flow of leaked oil and gas within the labyrinth seal.
In fig. 1, 2, 1-the tank wall; 2-a bearing plate; 3-a separator; 4-a labyrinth groove; 5-secondary sealing sponge; 6, mounting a fixed plate; 7-bolt; 8-a gasket; 9-a nut; 10-floating plate; 11-a spring; 12-rubber wrapping tape; 13-primary sealing sponge; 14-an outer support plate; 15-lower fixed plate; 16-an inner support plate; 17-throttling backlash; 18-expanding the cavity.
The present invention will be further illustrated by the following examples, but is not limited to these examples.
Detailed Description
[ example 1 ]
A composite sealing device with a super-amphiphobic surface for a floating roof storage tank and an installation method thereof are disclosed, as shown in figure 1, the composite sealing device with the super-amphiphobic surface for the floating roof storage tank comprises a bearing plate, a diaphragm, a labyrinth groove, secondary sealing sponge, an upper fixing plate, a bolt, a gasket, a nut, a spring, a rubber wrapping belt, primary sealing sponge, an outer supporting plate, a lower fixing plate and an inner supporting plate. The primary seal comprises an upper fixing plate, a spring, a rubber belting, a primary seal sponge, an outer supporting plate, a lower fixing plate and an inner supporting plate. Each group of one-time sealing adopts three springs to increase the reliability, and a group of springs is arranged every other one to two meters along the circumferential direction of the storage tank. Under the common elastic force action of the primary sealing sponge and the spring, the primary sealing device is tightly attached to the wall of the tank; when the gap between the edge of the floating disc and the wall of the tank is reduced, the primary sealing sponge is squeezed and compressed, and is tightly attached to the wall of the tank under the action of the elastic force of the spring; when the gap between the edge of the floating disc and the wall of the tank is enlarged, the extrusion force applied to the primary sealing sponge is reduced and expanded, and the primary sealing sponge is supported by the spring and is attached to the wall of the tank at any time; the primary sealing sponge is wrapped by a rubber wrapping tape with a super-amphiphobic coating on the surface.
The secondary seal comprises a bearing plate, a diaphragm, a labyrinth groove, secondary seal sponge, a bolt, a gasket and a nut, and the secondary seal adopts a labyrinth seal structure. FIG. 2 is a schematic view of the flow of leaked oil and gas within the labyrinth seal. In the throttle gear space 17, the oil gas that reveals contracts with higher speed, and the velocity of flow increases, and when getting into expansion cavity 18, the circulation passageway enlarges, and gaseous emergence diffusion in expansion cavity causes the swirl, makes the kinetic energy of gas convert heat energy, reduces gaseous residual velocity, through continuous energy loss, leaks the volume along with reducing, also contracts simultaneously and reduces secondary seal oil gas space.
The installation method of the composite sealing device comprises the following steps:
(1) firstly, fixing an inner support plate 16 at the edge of the floating disc 10, then fixedly connecting a lower fixing plate 15 with the inner support plate 16, fixing one side of a spring 11 on the inner support plate 16, and connecting the other side of the spring with an outer support plate 14;
(2) the primary sealing sponge 13 is put into a plastic film for vacuumizing, the primary sealing sponge 13 is compressed to be capable of being filled into a gap between the tank wall 1 and the edge of the floating plate 10, a rubber wrapping belt 12 with a super-amphiphobic coating is wrapped outside the compressed primary sealing sponge 13 to extrude an outer supporting plate 14 and a spring 11, and meanwhile, the rubber wrapping belt 12 and the primary sealing sponge 13 are put between the outer supporting plate 14 and the tank wall 1;
(3) fixedly connecting the upper fixing plate 6 with the inner support plate 16;
(4) the elastic force of the primary sealing sponge 13 is released by tearing off the plastic film outside the primary sealing sponge 13. Under the combined action of the spring 11 and the primary sealing sponge 13, the rubber wrapping tape 12 is tightly attached to the tank wall 1, so that primary sealing is formed.
(5) Placing the secondary sealing sponge 5 into a plastic film for vacuumizing, and compressing the secondary sealing sponge 5;
(6) placing the compressed secondary sealing sponge 5 above the upper fixing plate 6;
(7) a diaphragm 3 is wrapped on the side, close to the tank wall 1, of the pressure bearing plate 2;
(8) extruding the pressure bearing plate 2 and the diaphragm 3 to form a secondary sealing sponge 5, and tightly fixing the other side of the pressure bearing plate 2 on a floating disc 10 through a bolt 7, a gasket 8 and a nut 9;
(9) the plastic film on the outer side of the secondary sealing sponge 5 is torn, and the elasticity of the secondary sealing sponge 5 is released. The secondary sealing sponge 5 is tightly attached to the tank wall 1, so that secondary sealing is formed, and the pressure-bearing plate always keeps the pressing force in the direction of the tank wall.
[ example 2 ]
According to the conditions of embodiment 1, the upper fixing plate 6 and the lower fixing plate 15 are respectively arranged at the upper side and the lower side of the rubber packing belt 12, and the upper fixing plate 6 and the lower fixing plate 15 fix the upper position and the lower position of the rubber packing belt 12 to ensure that the upper position and the lower position can move up and down along with the floating plate 10. When the floating plate 10 goes upward, the primary sealing sponge 13 and the secondary sealing sponge 5 are deformed and are integrally inclined downward. The primary sealing sponge 13 can be kept stable under the action of the upper fixing plate 6 and the lower fixing plate 15, and cannot turn over. The secondary sealing sponge 5 can be kept stable under the restriction of the upper fixing plate 6, the diaphragm 3 and the pressure bearing plate 2. When the floating plate 10 descends, the primary sealing sponge 13 and the secondary sealing sponge 5 deform and incline upwards as a whole. The primary sealing sponge 13 can be kept stable under the action of the upper fixing plate 6 and the lower fixing plate 15, and cannot turn over. The secondary sealing sponge 5 can be kept stable under the restriction of the upper fixing plate 6, the diaphragm 3 and the pressure bearing plate 2.
[ example 3 ]
According to the conditions of the embodiment 1, the width of the primary sealing sponge 13 is larger than the gap between the tank wall 1 and the floating plate 10, and for the floating roof storage tank with the seriously deformed tank wall 1, the primary sealing sponge 13 and the spring 11 can ensure that the rubber packing belt 12 is tightly attached to the tank wall 1. For example, when the gap between the tank wall 1 and the edge of the floating plate 10 is 250mm, the width of the primary sealing sponge 13 is 400mm, and the overall shape and width of the secondary sealing sponge 5 should be fully considered with respect to the shape of the pressure bearing plate and the floating size of the gap, which cannot be determined in a general way. When the edge gap of the floating disc 10 is reduced, the primary sealing sponge 13 is squeezed and compressed, and is tightly attached to the tank wall 1 under the common elastic force action of the elastic sealing sponge and the spring 11; the secondary sealing sponge 5 can be tightly attached to the tank wall 1 under the extrusion of the bearing plate 2 and the tank wall 1; when the edge gap of the floating plate 10 is increased, the extrusion force of the primary sealing sponge 13 is reduced to expand, and the primary sealing sponge is supported by the spring 11 and is attached to the tank wall 1 at any time; the secondary sealing sponge 13 can also be tightly attached to the tank wall 1 under the combined action of self expansion and the bearing plate 2.
Claims (2)
1. A composite sealing device with a super-double-hydrophobic surface for a floating roof storage tank comprises a bearing plate, a diaphragm, a labyrinth groove, secondary sealing sponge, an upper fixing plate, a bolt, a gasket, a nut, a spring, a rubber belting, primary sealing sponge, an outer supporting plate, a lower fixing plate and an inner supporting plate, wherein primary sealing comprises the upper fixing plate, the spring, the rubber belting, the primary sealing sponge, the outer supporting plate, the lower fixing plate and the inner supporting plate; the secondary seal comprises a bearing plate, a diaphragm, a labyrinth groove, secondary seal sponge, a bolt, a gasket and a nut; in the primary seal, the inner supporting plate is attached to the edge of the floating disc, the upper fixing plate and the lower fixing plate are respectively connected with the inner supporting plate, one side of the spring is connected with the inner supporting plate, the other side of the spring is connected with the outer supporting plate, and the outer supporting plate can slide along the inner side and the outer side between the upper fixing plate and the lower fixing plate; one side of the outer support plate is connected with the spring, and the other side of the outer support plate is attached to the rubber belting; the outer side of the rubber wrapping belt is provided with a polymer coating with a nano interface, the polymer coating has super-amphiphobic property, and the other side of the rubber wrapping belt is attached to the tank wall; in the secondary seal, a layer of diaphragm is arranged on the outer side of the bearing plate, secondary sealing sponge is arranged on the other side of the diaphragm and is attached to the tank wall, a labyrinth groove is formed in the position where the secondary sealing sponge is attached to the tank wall, the secondary sealing sponge is tightly attached to the tank wall under the joint extrusion of the bearing plate and the upper fixing plate, and the other side of the bearing plate is tightly fixed on the floating disc through bolts, gaskets and nuts; each primary sealing group adopts three springs to increase reliability, a group of springs is arranged every other one to two meters along the circumferential direction of the storage tank, and the primary sealing device is tightly attached to the wall of the storage tank under the common elastic force action of the primary sealing sponge and the springs; when the gap between the edge of the floating disc and the wall of the tank is reduced, the primary sealing sponge is squeezed and compressed, and is tightly attached to the wall of the tank under the action of the elastic force of the spring; when the gap between the edge of the floating disc and the wall of the tank is enlarged, the extrusion force applied to the primary sealing sponge is reduced and expanded, and the primary sealing sponge is supported by the spring and is attached to the wall of the tank at any time; the secondary sealing adopts a labyrinth sealing structure, and a labyrinth groove is arranged at the joint part of the secondary sealing and the tank wall; the outer side of the primary sealing sponge is wrapped by a rubber wrapping tape, the outer side of the rubber wrapping tape is a polymer coating with a nano interface, and the polymer coating has super-amphiphobic property; one side of the outer supporting plate is attached to the rubber belting, the primary sealing sponge is positioned by the upper fixing plate and the lower fixing plate, and the primary sealing device is arranged in the gap of the edge of the floating disc; by adopting the form of the elastic sealing sponge and the spring, the design requirement of +/-100 mm deformation of the tank wall can be met; the rubber wrapping belt is made of a nitrile rubber material and has a static electricity conducting function; the surface of the spring is made of galvanized material; the sealing sponge is made of polyurethane elastic material.
2. A method for installing the composite sealing device of the super-amphiphobic surface for the floating roof storage tank, which comprises the following steps:
(1) firstly, fixing an inner supporting plate at the edge of a floating disc, then fixedly connecting a lower fixing plate with the inner supporting plate, fixing one side of a spring on the inner supporting plate, and connecting the other side of the spring with an outer supporting plate;
(2) the method comprises the following steps of putting a primary sealing sponge into a plastic film for vacuumizing, compressing the primary sealing sponge to a gap between the tank wall and the edge of a floating plate, wrapping a rubber wrapping belt with a super-amphiphobic coating outside the compressed primary sealing sponge, extruding an outer supporting plate and a spring, and putting the rubber wrapping belt and the primary sealing sponge between the outer supporting plate and the tank wall;
(3) fixedly connecting the upper fixing plate with the inner supporting plate;
(4) tearing off the plastic film outside the primary sealing sponge, and releasing the elasticity of the primary sealing sponge; under the combined action of the spring and the primary sealing sponge, the rubber packing belt is tightly attached to the wall of the tank to form primary sealing;
(5) putting the secondary sealing sponge into a plastic film for vacuumizing, and compressing the secondary sealing sponge;
(6) placing the compressed secondary sealing sponge above the upper fixing plate;
(7) wrapping a diaphragm on the side of the pressure bearing plate close to the tank wall;
(8) extruding a pressure bearing plate and a diaphragm to form secondary sealing sponge, and tightly fixing the other side of the pressure bearing plate on the floating disc through bolts, gaskets and nuts;
(9) tearing off the plastic film outside the secondary sealing sponge, and releasing the elasticity of the secondary sealing sponge; the secondary sealing sponge is tightly attached to the tank wall to form secondary sealing, and the pressure-bearing plate always keeps the pressing force in the direction of the tank wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810427709.8A CN110454573B (en) | 2018-05-07 | 2018-05-07 | Composite sealing device with super-amphiphobic surface for floating roof storage tank and mounting method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810427709.8A CN110454573B (en) | 2018-05-07 | 2018-05-07 | Composite sealing device with super-amphiphobic surface for floating roof storage tank and mounting method thereof |
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| CN110454573A CN110454573A (en) | 2019-11-15 |
| CN110454573B true CN110454573B (en) | 2020-07-24 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111634563B (en) * | 2020-05-28 | 2024-08-20 | 江苏科强新材料股份有限公司 | Floating roof tank sealing structure based on tongue-shaped sealing belt and assembling process thereof |
| CN111746950A (en) * | 2020-07-28 | 2020-10-09 | 安庆特种橡塑股份有限公司 | High-efficiency oil-free air sealing device for floating roof storage tank |
| CN114348483B (en) * | 2021-12-02 | 2023-06-16 | 安徽美祥实业有限公司 | Sealing device and method for eliminating oil gas space |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08217188A (en) * | 1995-02-13 | 1996-08-27 | Tsukishima Kikai Co Ltd | Seal device for floating tank roof |
| CN104370002A (en) * | 2014-11-14 | 2015-02-25 | 中国石油天然气股份有限公司大连石化分公司 | Floating roof tank floating pan continuous one-piece airtight sealing structure without oil gas space |
| CN204250668U (en) * | 2014-11-14 | 2015-04-08 | 安徽美祥实业有限公司 | A kind of hermetically-sealed construction without oil-gas space of floating roof tank floating plate |
| CN105460436A (en) * | 2015-12-29 | 2016-04-06 | 中国石油化工股份有限公司 | Sealing-pressure-self-adjusting-type outward floating roof tank and floating disc sealing device |
| CN106594282A (en) * | 2015-10-19 | 2017-04-26 | 南京凯盛国际工程有限公司 | Sealing device capable of automatically compensating abrasion loss |
| CN206637040U (en) * | 2017-04-18 | 2017-11-14 | 榆林学院 | A kind of mechanically-sealing apparatus |
-
2018
- 2018-05-07 CN CN201810427709.8A patent/CN110454573B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08217188A (en) * | 1995-02-13 | 1996-08-27 | Tsukishima Kikai Co Ltd | Seal device for floating tank roof |
| CN104370002A (en) * | 2014-11-14 | 2015-02-25 | 中国石油天然气股份有限公司大连石化分公司 | Floating roof tank floating pan continuous one-piece airtight sealing structure without oil gas space |
| CN204250668U (en) * | 2014-11-14 | 2015-04-08 | 安徽美祥实业有限公司 | A kind of hermetically-sealed construction without oil-gas space of floating roof tank floating plate |
| CN106594282A (en) * | 2015-10-19 | 2017-04-26 | 南京凯盛国际工程有限公司 | Sealing device capable of automatically compensating abrasion loss |
| CN105460436A (en) * | 2015-12-29 | 2016-04-06 | 中国石油化工股份有限公司 | Sealing-pressure-self-adjusting-type outward floating roof tank and floating disc sealing device |
| CN206637040U (en) * | 2017-04-18 | 2017-11-14 | 榆林学院 | A kind of mechanically-sealing apparatus |
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Effective date of registration: 20221125 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: No.218, Yan'an Third Road, Shinan District, Qingdao, Shandong 266071 Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: SINOPEC Research Institute OF SAFETY ENGINEERING |