CN106005775B - Floating roof tank once sealing device and its installation method - Google Patents
Floating roof tank once sealing device and its installation method Download PDFInfo
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- CN106005775B CN106005775B CN201610546540.9A CN201610546540A CN106005775B CN 106005775 B CN106005775 B CN 106005775B CN 201610546540 A CN201610546540 A CN 201610546540A CN 106005775 B CN106005775 B CN 106005775B
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- rubber belt
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- 238000007789 sealing Methods 0.000 title claims abstract description 126
- 238000007667 floating Methods 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000009434 installation Methods 0.000 title abstract description 10
- 229920001971 elastomer Polymers 0.000 claims abstract description 100
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000012856 packing Methods 0.000 claims description 8
- 230000008859 change Effects 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 7
- 230000006835 compression Effects 0.000 abstract 2
- 238000007906 compression Methods 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 15
- 239000006260 foam Substances 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 208000025274 Lightning injury Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
- B65D88/46—Large containers having floating covers, e.g. floating roofs or blankets with sealing means between cover rim and receptacle with mechanical means acting on the seal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a kind of floating roof tank once sealing device and its installation method.The once sealing device is installed between floating plate edge slot, and when floating plate marginal gap does not change, sealing device is kept good fit-state by the twisting force of sponge elastic force and torsionspring and tank skin；When floating plate marginal gap becomes it is small when sealing device be in plumbness all the time by the support of rubber mat plate, but compression after sponge stress ensure that the good fit state with tank skin；When the change of floating plate marginal gap is big, the compression stress between sealing device and tank skin diminishes, and now can be popped up support bar by the twisting force of torsionspring, so that rubber bag band keeps close fit-state with the tank skin moment.During support bar rotates, lower caulking gum band can with the lifting of fixed plate fluctuations, but no matter under which kind of state, lower caulking gum band can be bonded all the time with liquid level, so as to play the purpose for preventing oil gas volatilization.
Description
Technical Field
The invention belongs to the technical field of oil and gas storage and transportation, and particularly relates to a primary sealing device for a floating roof storage tank and an installation method thereof.
Background
The floating plate edge seal is one of the most important devices for controlling oil gas volatilization of a large crude oil storage tank, and the volatilization loss of oil products can be greatly reduced after the seal is used. The floating disc edge seal mainly comprises two parts: primary sealing and secondary sealing. The primary seal is installed inside the annular space between the float and the tank wall, usually in direct contact with the oil. In order to further reduce the evaporation loss of oil products, a set of sealing device is added on the original primary seal, namely secondary seal.
Primary seals are mainly classified into three types according to the structure: mechanical seals, flexible elastomeric seals, and tubular liquid-filled seals.
The mechanical seal has a complicated internal structure, and may discharge electricity in case of lightning strike, resulting in fire and explosion accidents at the edge seal. And for the storage tank with the seriously deformed tank wall, when the device cannot meet the sealing requirement, a certain gap is formed between the sealing boot plate and the tank wall, so that oil gas volatilization is caused, and a discharge gap is easily formed when the storage tank is struck by lightning. The elastic soft seal has the advantages of simple structure, no metal parts inside (no gap discharge during lightning stroke), good adaptability to the deformation of the tank wall and the like. The existing elastic foam plastic sealing generally adopts an immersion installation mode, the phenomena of aging of a rubber bag and insufficient elasticity of filling sponge can occur after long-time use, a larger oil-gas space exists between the upper part of the sealing and an oil-gas diaphragm of the secondary sealing, and the storage tank still has the possibility of ignition and explosion when being struck by lightning. The utility model with publication number CN 204250669U discloses a continuous conjoined closed sealing structure without oil-gas space of floating-roof storage tank floating plate, which provides a novel foam plastic sealing device, changes the original primary sealed rubber belt into T-shaped structure, forms a new closed annular space between one side and the secondary sealed oil-gas diaphragm, and adds soft elastic sponge inside; although the structure makes up the defect of large oil-gas space in the immersion type mounting foam plastic sealing structure, the structure still cannot well seal an overlarge edge gap of a storage tank with a seriously deformed tank wall. The invention patent application with publication number CN 104355004A discloses a sealing device between a floating plate and a tank wall of an external floating roof tank and a mounting method thereof, the invention patent application provides a method for optimizing a foam plastic sealing device, which is similar to the former, but the structure uses a new rubber belt of a mating type, and does not use a T-shaped rubber belt; the invention is used for optimizing the in-service foam plastic sealing structure and can be replaced with oil. The utility model discloses a utility model patent that publication number is CN 204078521U discloses a floating roof oil tank primary seal device, and this utility model patent discloses a novel primary seal device, and its essence is that one set of initiative fire extinguishing systems is adorned on liquid-filled tubular seal device upper portion, when sealing device high temperature or naked light appear, initiatively put out a fire. The above technologies can not well meet the requirement of the edge sealing of the floating plate, and have the defects of sealing gaps, oil and gas spaces in the edge gaps, lightning stroke discharge points in the sealing structure and the like.
Disclosure of Invention
The invention aims to provide a primary sealing device for a floating roof storage tank, which solves the problem of insufficient elasticity of the existing foam plastic sealing structure and can meet the requirement of larger deformation of the tank wall of the storage tank.
In order to achieve the purpose, the invention adopts the following technical scheme:
the primary sealing device for the floating roof storage tank comprises a support, a support rod, a torsion spring, a rubber packing belt, sponge, a fixing plate, an upper sealing rubber belt and a lower sealing rubber belt; wherein,
the support is provided with a bolt hole for combining with the edge plate of the floating disc and a first shaft hole for installing the support rod; the upper ends of the torsion spring and the support rod are jointly arranged on the support through a connecting shaft extending into the first shaft hole;
a first connecting seat is arranged on the front side surface of the lower end of the supporting rod, and a second shaft hole is formed in the first connecting seat; a rubber base plate is arranged on the rear side surface of the lower end of the support rod;
the rubber belting, the sponge and the fixed plate are all positioned at the front lower part of the supporting rod;
the upper end of the rubber belting and the lower end of the upper sealing rubber belt are jointly installed on the fixed plate; the upper sealing rubber belt extends upwards along the front side of the supporting rod and bypasses the top of the support, and the upper end of the upper sealing rubber belt is installed with the support;
the lower end of the rubber belting and the lower end of the lower sealing rubber belt are jointly arranged on the fixed plate; the lower sealing rubber belt extends upwards to the position of the support along the rear side of the support rod, and the upper end of the lower sealing rubber belt is installed with the support;
the sponge is positioned between the filling areas enclosed by the rubber wrapping belts and the fixing plates;
the middle part of the fixed plate is provided with a second connecting seat, the second connecting seat is provided with a third shaft hole, and the lower end of the supporting rod is connected with the fixed plate through a connecting shaft which sequentially penetrates through the second shaft hole and the third shaft hole.
Preferably, the primary sealing device for the floating roof storage tank further comprises angle steel and bolts; wherein,
the upper end of the rubber belting and the lower end of the upper sealing rubber belt are arranged at the upper end of the fixed plate through angle steel and bolts; the lower end of the rubber belting and the lower end of the lower sealing rubber belt are arranged at the lower end of the fixed plate through angle steel and bolts.
In addition, the invention also provides an installation method of the primary sealing device for the floating roof storage tank, which adopts the following scheme:
the mounting method of the primary sealing device for the floating roof storage tank aims at the sealing device which is the primary sealing device for the floating roof storage tank; the mounting method specifically comprises the following steps:
(1) transporting the floating roof storage tank to the upper part of the floating plate by using all parts of the primary sealing device;
(2) assembling a rubber wrapping belt and sponge above the floating plate;
(3) mounting a rubber base plate at the lower end of the supporting plate, and connecting the lower end of the supporting rod with the fixing plate through a connecting shaft;
(4) the upper end of the rubber belting and the lower end of the upper sealing rubber belt are jointly installed on the fixed plate, and the lower end of the lower sealing rubber belt and the lower end of the rubber belting are jointly installed on the fixed plate;
(5) mounting a support on the top of the edge plate of the floating disc, then putting the assembled components into the gap of the edge of the floating disc, and mounting the upper end of the support rod and the torsion spring on the support together by using a connecting shaft;
(6) and mounting the upper end of the upper sealing rubber belt and the upper end of the lower sealing rubber belt together with the support.
The invention has the following advantages:
the sealing device is arranged between the gaps of the edges of the floating discs, and when the gaps of the edges of the floating discs are not changed, the whole sealing device is kept in a good fit state with the wall of the tank under the action of the elastic force of the sponge and the torsion force of the torsion spring; when the gap between the edges of the floating plate is reduced, the floating plate is supported by the rubber cushion plate to be always in a vertical state, but the sponge is compressed and deformed after being stressed, so that the good fit state of the sealing device and the tank wall is further ensured; when floating plate edge clearance grow, compressive force between sealing device and the jar wall diminishes, and the torsion effect that receives torsion spring this moment can upwards bounce the bracing piece to make rubber band and jar wall keep inseparable laminating state constantly, at the rotatory in-process of bracing piece, lower sealing rubber band can fluctuate along with the lift of fixed plate and change, however no matter under what kind of state, lower sealing rubber band can both laminate with the liquid level all the time, thereby plays the purpose that prevents oil gas volatilization. The sealing device can meet the sealing requirement of larger deformation of the tank wall of the storage tank, and can effectively reduce the occurrence of fire accidents of the sealing ring because the sealing device eliminates the oil-gas space in the gap of the edge of the floating plate.
Drawings
FIG. 1 is a schematic structural view of a primary sealing device for a floating roof tank in example 1 of the present invention;
fig. 2 is a schematic structural view of a support rod in a primary sealing device according to embodiment 1 of the present invention;
FIG. 3 is a schematic view of a rubber packing tape in a primary sealing apparatus according to example 1 of the present invention;
FIG. 4 is a schematic structural diagram of a sponge in a primary sealing device according to embodiment 1 of the present invention;
FIG. 5 is a schematic structural view of a fixing plate in the primary sealing apparatus according to embodiment 1 of the present invention;
fig. 6 is a schematic structural view of upper angle steel and lower angle steel in the primary sealing device according to embodiment 1 of the present invention;
FIG. 7 is a front view of a torsion spring in a primary sealing device according to embodiment 1 of the present invention;
FIG. 8 is a side view of a torsion spring in a primary sealing apparatus according to embodiment 1 of the present invention;
fig. 9 is a view showing a state of use of the disposable sealing device for a floating roof tank in example 1 of the present invention.
Detailed Description
The invention is described in further detail below with reference to the following figures and detailed description:
example 1
Referring to fig. 1, the primary sealing device for the floating roof storage tank comprises a support 11, a support rod 10, a torsion spring 13, a rubber packing belt 2, a sponge 3, a fixing plate 7, an upper sealing rubber belt 16 and a lower sealing rubber belt 4. Wherein,
the support 11 is provided with a bolt hole and a first shaft hole. Wherein bolt holes are located at the rear side of the bracket 11, through which the bracket 11 can be mounted on top of the edge plate of the floating plate 12. The first shaft hole is positioned in the middle of the front end of the support 11.
The main function of the abutment 11 is to support the entire sealing device. Specifically, the torsion spring 13 and the upper end of the support rod 10 are jointly mounted on the support 11 through a connecting shaft 9 extending into the first shaft hole.
The torsion spring 13 is constructed as shown in fig. 7 and 8, and has the function of automatically bouncing up the whole sealing device when the gap between the edges of the floating plate is increased, so that the sealing device of the invention is always well attached to the tank wall 1, and oil gas is prevented from volatilizing.
As shown in fig. 2, a first connecting seat 18 is provided at a front side surface of a lower end of the support bar 10, and a second shaft hole 19 is provided on the first connecting seat 18; a rubber packing 8 is installed at the lower end rear side surface of the support rod 10.
The lower rear side surface of the support rod 10 faces the edge plate of the floating plate 12 during installation, and the rubber packing 8 is used to prevent the support rod 10 from directly contacting the edge plate of the floating plate.
Fig. 3, 4 and 5 show the structure of the rubber bag 2, the sponge 3 and the fixing plate 7 respectively. In the installation process, the rubber belting 2, the sponge 3 and the fixing plate 7 are all positioned at the front lower part of the supporting rod. Wherein,
the upper end of the rubber belting 2 is arranged at the upper end of the fixed plate 7 through an angle steel 5 and a bolt 6, and the lower end of the rubber belting 2 is arranged at the lower end of the fixed plate 7 through an angle steel 5 and a bolt 6. The structure of the angle steel 5 is shown in fig. 6.
The sponge 3 is positioned between the filling area enclosed by the rubber wrapping tape 2 and the fixing plate 7. The sponge 3 is used for ensuring that the rubber wrapping tape 2 and the tank wall 1 have a good fit state.
As shown in fig. 5, a second connecting seat 20 is provided in the middle of the fixing plate 7, and a third shaft hole 17 is provided in the second connecting seat 20. The lower end of the support rod 10 is connected with the fixing plate 7 through a connecting shaft 9 which sequentially passes through the second shaft hole 19 and the third shaft hole 17.
Further, the lower end of an upper sealing rubber band 16, which extends upward along the front side of the support bar and passes around the top of the pedestal, is mounted to the upper end of the fixed plate 7 by an angle steel 5 and a bolt 6, and the upper end of the upper sealing rubber band is mounted with the pedestal.
The upper seal rubber band 16 functions to prevent foreign matters from falling into the inside of the seal structure. During installation, the upper sealing rubber band 16 should have a certain margin to compensate for seal variations when the edge gap increases.
The lower end of the lower sealing rubber belt 4 is installed at the lower end of the fixing plate 7 through an angle steel 5 and a bolt 6, the lower sealing rubber belt 4 extends upwards to a support position along the rear side of the supporting rod, and the upper end of the lower sealing rubber belt is installed together with the support.
Under the condition that the tank wall 1 is not deformed, namely the edge gap of the floating disc 12 is not changed, the lower sealing rubber belt 4 is attached to the liquid level of the storage tank 1, and part of the surplus lower sealing rubber belt 4 is immersed in oil.
The lower sealing rubber belt 4 is used for isolating storage medium of the storage tank from the sealing structure and preventing oil gas from volatilizing.
The nitrile rubber belts used for the upper sealing rubber belt 16 and the lower sealing rubber belt 4 in the embodiment 1 should have a static electricity conducting function, and the metal material should be a galvanized structure.
Example 2
The installation method of the primary sealing device for the floating roof storage tank in the embodiment 2 is directed to the primary sealing device for the floating roof storage tank in the embodiment 1, the primary sealing is implemented by adopting a liquid immersion type installation mode, and the specific installation steps are as follows:
(1) transporting the floating roof tank over the floating deck 12 with all components of the primary containment system;
(2) assembling the rubber packing belt 2 and the sponge 3 above the floating plate 12;
(3) mounting a rubber base plate 8 on one side of the lower end of a support plate 10 close to an edge plate of a floating disc 12, and connecting the lower end of a support rod 10 with a fixed plate through a connecting shaft 9 on the other side of the support plate 10; the fixing plate 7 is centered on the connecting shaft 9 and can be turned over up and down, so that the fixing plate 7 can be kept in a state of being parallel to the tank wall 1 at any time in the using process;
(4) the upper end of the rubber wrapping tape 2 and the lower end of the upper sealing rubber tape 16 are jointly installed at the upper end of the fixing plate 7, and the lower end of the lower sealing rubber tape 4 and the lower end of the rubber wrapping tape 2 are jointly installed at the lower end of the fixing plate 7;
(5) mounting a support 11 on the top of an edge plate of a floating disc 12, then putting the assembled components into a gap at the edge of the floating disc 12, and mounting the upper end of a support rod 10 and a torsion spring 13 on the support 11 together by using a connecting shaft 9;
(6) the upper end of the upper sealing rubber band 16 and the upper end of the lower sealing rubber band 4 are fitted with the holder 11.
The general working principle of the primary sealing device for the floating roof storage tank is as follows:
when the edge gap of the floating disc 12 is not changed, the whole sealing device is under the action of the elastic force of the sponge 3 and the torsion force of the torsion spring 13, so that the sealing device is always in a fit state with the tank wall 1.
When the edge clearance of the floating disc 12 becomes smaller, the supporting rod 10 is supported by the rubber base plate 8 and is always in a vertical state, but the sponge 3 can be compressed and deformed after being stressed, and the whole sealing device can be tightly attached to the tank wall 1.
As shown in fig. 9, when the gap between the edge of the floating plate 12 increases, the compressive force between the sealing device and the tank wall 1 decreases, and at this time, the support rod 10 is sprung up by the force of the torsion spring 13, so that the rubber packing tape 2 is constantly kept in close contact with the tank wall 1. And the greater the change in the gap, the greater the angle of rotation of the support pole 10.
After the supporting rod 10 is bounced, the fixing plate 7 and the supporting rod 10 are connected through the connecting shaft 9, so that the fixing plate 7 can always keep a parallel state with the tank wall 1 no matter how large the rotation angle of the supporting rod 10 is.
In the process of rotation of the support rod 10, the lower sealing rubber belt 4 can fluctuate along with the lifting of the fixing plate 7, but no matter which state the lower sealing rubber belt 4 is in, the lower sealing rubber belt 4 can be always attached to the liquid level, so that the purpose of preventing oil gas from volatilizing is achieved.
The design of the existing seal is designed according to the change of the edge clearance of the floating disc 12 to +/-100 mm, namely the variable range of the seal is required to be R (-X/+ X). However, when the edge clearance changes greatly, the current sealing structure cannot well seal the floating disc, so that the sealing is not tight, and particularly, more elastic sponge soft sealing structures are used.
However, by using the primary sealing device provided by the invention, particularly on an outer floating roof storage tank, the primary sealing device has the advantage of large elastic change for the storage tank with seriously deformed tank wall, and the deformation can meet the requirement of clearance change R (-X/+ 3X); and this sealing device uses the rubber tape to keep apart the inside part of structure with external world, makes inside unable oil gas space that produces to the possibility that the emergence takes place the sealing washer fire incident inside seal structure has effectively been avoided.
In addition, a rain baffle 14 and a secondary sealing oil-gas diaphragm 15 are arranged above the primary seal of the invention.
It should be understood, however, that the description herein of specific embodiments is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (3)
1. The one-time sealing device for the floating roof storage tank is characterized by comprising a support, a support rod, a torsion spring, a rubber packing belt, a sponge, a fixing plate, an upper sealing rubber belt and a lower sealing rubber belt; wherein,
the support is provided with a bolt hole for combining with the edge plate of the floating disc and a first shaft hole for installing the support rod; the upper ends of the torsion spring and the support rod are jointly arranged on the support through a connecting shaft extending into the first shaft hole;
a first connecting seat is arranged on the front side surface of the lower end of the supporting rod, and a second shaft hole is formed in the first connecting seat; a rubber base plate is arranged on the rear side surface of the lower end of the support rod;
the rubber belting, the sponge and the fixed plate are all positioned at the front lower part of the supporting rod;
the upper end of the rubber belting and the lower end of the upper sealing rubber belt are jointly installed on the fixed plate; the upper sealing rubber belt extends upwards along the front side of the supporting rod and bypasses the top of the support, and the upper end of the upper sealing rubber belt is installed with the support;
the lower end of the rubber belting and the lower end of the lower sealing rubber belt are jointly arranged on the fixed plate; the lower sealing rubber belt extends upwards to the position of the support along the rear side of the support rod, and the upper end of the lower sealing rubber belt is installed with the support;
the sponge is positioned between the filling areas enclosed by the rubber wrapping belts and the fixing plates;
the middle part of the fixed plate is provided with a second connecting seat, the second connecting seat is provided with a third shaft hole, and the lower end of the supporting rod is connected with the fixed plate through a connecting shaft which sequentially penetrates through the second shaft hole and the third shaft hole.
2. The primary sealing device for a floating roof tank of claim 1, further comprising angle steel and bolts; wherein,
the upper end of the rubber belting and the lower end of the upper sealing rubber belt are arranged at the upper end of the fixed plate through angle steel and bolts; the lower end of the rubber belting and the lower end of the lower sealing rubber belt are arranged at the lower end of the fixed plate through angle steel and bolts.
3. A method of installing a primary seal device for a floating roof tank, which is the primary seal device for a floating roof tank according to claim 1 or 2; the method is characterized by comprising the following steps:
(1) transporting the floating roof storage tank to the upper part of the floating plate by using all parts of the primary sealing device;
(2) assembling a rubber wrapping belt and sponge above the floating plate;
(3) mounting a rubber base plate at the lower end of the supporting plate, and connecting the lower end of the supporting rod with the fixing plate through a connecting shaft;
(4) the upper end of the rubber belting and the lower end of the upper sealing rubber belt are jointly installed on the fixed plate, and the lower end of the lower sealing rubber belt and the lower end of the rubber belting are jointly installed on the fixed plate;
(5) mounting a support on the top of the edge plate of the floating disc, then putting the assembled components into the gap of the edge of the floating disc, and mounting the upper end of the support rod and the torsion spring on the support together by using a connecting shaft;
(6) and mounting the upper end of the upper sealing rubber belt and the upper end of the lower sealing rubber belt together with the support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610546540.9A CN106005775B (en) | 2016-07-12 | 2016-07-12 | Floating roof tank once sealing device and its installation method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610546540.9A CN106005775B (en) | 2016-07-12 | 2016-07-12 | Floating roof tank once sealing device and its installation method |
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| CN106005775B true CN106005775B (en) | 2018-03-23 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108016762B (en) * | 2016-10-31 | 2019-08-30 | 中国石油化工股份有限公司 | Floating roof tank spring-piece type foamed plastics once sealing device and its installation method |
| CN111186649B (en) * | 2018-11-14 | 2022-02-25 | 中国石油化工股份有限公司 | Super-amphiphobic surface floating plate edge sealing device for external floating roof storage tank and using method |
| CN113291640B (en) * | 2021-06-25 | 2022-10-04 | 江苏菲诺机械设备有限公司 | Double-sealing floating plate |
| CN114955268A (en) * | 2022-06-07 | 2022-08-30 | 北斗启明（北京）节能科技服务有限公司 | Elastic compensation sealing technology |
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| CN105540081A (en) * | 2015-12-29 | 2016-05-04 | 中国石油化工股份有限公司 | Spring compensation type soft seal device for external floating-roof oil tank |
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| CN201580721U (en) * | 2009-10-28 | 2010-09-15 | 上海恒浮石化设备有限公司 | Plate spring type mechanical sealing device for floating-roof oil tank |
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Effective date of registration: 20221128 Address after: No. 22, Chaoyangmen street, Chaoyang District, Beijing 100020 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: SINOPEC Research Institute OF SAFETY ENGINEERING |