CN216917108U - Large compensation sealing structure for tank wall and floating disc - Google Patents
Large compensation sealing structure for tank wall and floating disc Download PDFInfo
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- CN216917108U CN216917108U CN202220608489.0U CN202220608489U CN216917108U CN 216917108 U CN216917108 U CN 216917108U CN 202220608489 U CN202220608489 U CN 202220608489U CN 216917108 U CN216917108 U CN 216917108U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
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Abstract
The utility model provides a large compensation sealing structure for a tank wall and a floating disc and the floating disc, wherein the large compensation sealing structure comprises a circular primary sealing structure and a circular secondary sealing structure which are arranged around the edge of the floating disc; the inner edges of the primary sealing structure and the secondary sealing structure are connected with the edge plate of the floating disc, the outer edge extends towards the tank wall, the primary sealing structure bends downwards, and the secondary sealing structure bends upwards; the primary sealing structure comprises a sliding track plate, a supporting plate, a sealing film and a film supporting elastic sheet which are arranged in sequence; the slide plate, the supporting plate and the membrane supporting elastic sheet are all metal elastic plates; the secondary sealing structure comprises a tongue-shaped sealing scraper plate; the outer edge of the tongue-shaped sealing scraper is in sliding contact with the tank wall. The large compensation sealing structure for the tank wall and the floating disc has the advantages of long sealing life, large compensation range and simple and convenient maintenance.
Description
Technical Field
The utility model belongs to the technical field of storage tank sealing structures, and particularly relates to a large compensation sealing structure for a tank wall and a floating plate and the floating plate.
Background
The floating plate is lifted along with the liquid level of the storage tank through buoyancy, and the environmental protection equipment covered on the liquid level can reduce the volatilization of oil gas of the storage tank. Because storage tank jar wall straightness that hangs down has the deviation, exists the annular space between floating plate and the jar wall, consequently need carry out peripheral sealing to the annular space between floating plate and the storage tank, prevent that the oil from overflowing in the annular space and volatilizing to the air, will guarantee simultaneously that the floating plate rises and descends whole journey unimpededly, have certain ability compensatory, avoid leading to the floating plate chuck because of jar wall straightness deviation that hangs down.
At present, the peripheral seal of an inner floating roof storage tank mostly adopts bag type seal, the bag type seal comprises a seal bag, an anti-turnover hook, a seal sponge, a fastener and the like, the seal bag is mostly made of nitrile rubber, fluororubber and the like, the seal bag is tightly attached to the tank wall in the operation process and moves up and down along with a floating disc, the seal is always immersed below 50mm of the liquid level, the seal effect is realized, the seal belongs to immersion type seal, but in the practical application process, the distance between the floating disc and the tank wall can be changed along with the movement of the floating disc, when the distance between the floating disc and the tank wall is reduced, a seal system is subjected to extrusion, the friction coefficient between the seal system and the tank wall is larger (0.4), and the damage condition of the seal bag can be further caused; the bag type sealing compensation range is small, only +/-100 mm can be compensated, and the application range of sealing is limited; the sealing system has the defects of short service life, difficult inspection and maintenance and the like due to material problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a large compensation sealing structure for a tank wall and a floating disc and the floating disc.
In order to solve the above problems, one aspect of the present invention provides a large compensation sealing structure for a tank wall and a floating plate:
the device comprises a circular primary sealing structure and a circular secondary sealing structure which are arranged around the edge of a floating disc; the inner edge of the primary sealing structure is connected with the edge plate of the floating disc, and the outer edge of the primary sealing structure extends towards the tank wall and is bent downwards; the inner edge of the secondary sealing structure is connected with the edge plate of the floating disc, and the outer edge of the secondary sealing structure extends towards the tank wall and is bent upwards;
by being close to a jar wall side direction is close to floating disc one side, once seal structure is including setting gradually: a sliding plate, a support plate, a sealing film and a film supporting spring sheet; the outer edge of the sliding track plate is in sliding contact with the tank wall to form an elastic mechanical sealing structure; the supporting plate presses the sliding shoe plate to the tank wall; the membrane supporting elastic sheet presses the sealing membrane to enable the sealing membrane to be attached to the support plate; the sliding plate, the supporting bracket plate and the membrane supporting elastic sheet are all metal elastic plates;
the secondary sealing structure comprises a tongue-shaped sealing scraper plate; the outer edge of the tongue seal flight is in sliding contact with the tank wall.
Preferably, the inner edge of the primary sealing structure and the inner edge of the secondary sealing structure are connected with the edge plate of the floating plate through a bolt connection structure;
the bolt connection structure includes: the device comprises a bolt, a primary sealing pressure plate, a secondary sealing pressure plate, a first nut and a second nut; the bolt penetrates through the edge plate of the floating disc, and the primary sealing structure, the primary sealing pressing plate, the first nut, the secondary sealing structure, the secondary sealing pressing plate and the second nut are sequentially arranged on the bolt from bottom to top.
Preferably, the bolted connection structure still includes the reinforcement angle steel, the reinforcement angle steel is located the arc of the marginal board of floating plate is connected the department with the curb plate to locate on the bolt.
Preferably, the bottom of the outer edge of the sliding plate is turned upwards to form a slot, and the bottom of the outer edge of the support bracket plate, the sealing membrane and the membrane support spring plate is arranged in the slot.
Preferably, the material of the sliding track plate, the supporting plate and the membrane supporting elastic sheet is 1Cr17Ni7 stainless steel.
Preferably, the sealing film is made of polytetrafluoroethylene reinforced glass fiber cloth.
Preferably, the thickness of the polytetrafluoroethylene reinforced glass fiber cloth is 0.25 mm.
Preferably, the tongue-shaped sealing scraper is made of XPE material, namely chemical cross-linked polyethylene foaming material.
Preferably, the bottom of the primary sealing structure is at least 100mm below the liquid level.
Another aspect of the present invention provides a floating plate:
the large compensation sealing structure for the tank wall and the floating plate is connected with the edge of the floating plate.
Compared with the prior art, the utility model has the following beneficial effects:
1. the large compensation sealing structure for the tank wall and the floating disc adopts the combination of the primary sealing structure and the secondary sealing structure to form a double-sealing type high-efficiency sealing structure; in the primary sealing structure, one end of a sliding shoe plate is connected with a reinforced edge plate of the floating disc, surrounds the floating disc, and the outer edge of the sliding shoe plate is tightly attached to the wall of the tank to form an elastic mechanical sealing structure which has edge compensation under various working conditions; the support bracket is used for effectively enhancing, compensating and adjusting the sliding shoe plate, namely applying elasticity to the sliding shoe plate to the tank wall to ensure that the sliding shoe plate is always contacted with the tank wall; the sealing film plays a role in sealing; the membrane supporting elastic sheet applies pressure to the sealing membrane so that the sealing membrane is tightly attached to the support plate, and the sealing effect is ensured; the secondary sealing structure is a tongue-shaped sealing scraper blade, and can further protect the primary sealing structure from being damaged by severe environment and prolong the service life of the primary sealing structure.
2. The large compensation sealing structure for the tank wall and the floating plate seals the gas space between the floating plate and the tank wall to form a static sealing structure, so that gas-phase mass transfer in the upper space and the lower space of the floating plate is prevented. The large compensation sealing structure has low friction coefficient (only about 0.15, and the bag type sealing is about 0.4) with the tank wall, and can remarkably reduce the friction force between the sealing structure and the tank wall; the working compensation range is large, generally ranging from-100 mm to +350mm, when the tank body is seriously deformed or the floating disc moves due to the action of external force, and the distance between the floating disc and the tank wall is increased, the sealed sliding shoe plate moves along with the floating disc, and the sealing device is always kept in contact with the tank wall without separation and extends into the liquid level below 100mm through the good elasticity of the metal elastic plate, so that the sealing effect is ensured; the sealing film is arranged, and the polytetrafluoroethylene reinforced glass fiber cloth is adopted, so that most of acid, alkali and organic solvents can be resisted; the sealing structure can be customized for each oil tank, the sealing structure is ensured to be always in full contact with the inner wall of the storage tank in the up-and-down operation process of the floating disc, a good sealing effect is achieved, and the service life of the large compensation sealing device is longer than or equal to 15 years.
Drawings
Fig. 1 is a schematic structural diagram of a large compensation sealing structure for a tank wall and a floating plate according to embodiment 1 of the utility model;
fig. 2 is a partially enlarged view of a large compensating seal structure for a tank wall and a floating plate according to embodiment 1 of the present invention at a.
Wherein: 1-surrounding a floating disc; 2-primary sealing structure; 21-a slide plate; 22-a support plate; 23-a sealing film; 24-a membrane support spring; 25-slot; 3-secondary sealing structure; 4-tank wall; 5-bolt; 6-primary sealing and pressing plate; 7-secondary sealing and pressing plate; 8-a first nut; 9-a second nut; and 10-reinforcing angle steel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1
As shown in fig. 1 and fig. 2, the large compensation sealing structure for a tank wall and a floating plate according to the present embodiment includes:
a circular primary sealing structure 2 and a circular secondary sealing structure 3 which are arranged around the edge of the floating disc 1; the inner edge of the primary sealing structure 2 is connected with the edge plate of the floating disc 1, and the outer edge extends towards the tank wall 4 and is bent downwards; the inner edge of the secondary sealing structure 3 is connected with the edge plate of the floating disc 1, and the outer edge extends towards the tank wall 4 and is bent upwards; the sliding plate, the supporting bracket plate and the membrane supporting elastic sheet are all metal elastic plates;
by being close to 4 lateral nearings of jar wall the floating plate 1 one side, seal structure 2 is including setting gradually: a sliding plate 21, a support plate 22, a sealing film 23, and a film supporting spring sheet 24; the outer edge of the sliding track plate 21 is in sliding contact with the tank wall 4 to form an elastic mechanical sealing structure; the lug plate 22 presses the slide plate 21 onto the tank wall 4; the membrane supporting elastic sheet 24 presses the sealing membrane 23 to make the sealing membrane 23 attached to the support plate 22;
the secondary sealing structure 3 comprises a tongue-shaped sealing scraper; the outer edge of the tongue-shaped sealing scraper is in sliding contact with the tank wall 4.
In the large compensation sealing structure for the tank wall and the floating plate in the embodiment, in the primary sealing structure, one end of the sliding shoe plate is connected with the reinforced edge plate of the floating plate, surrounds the floating plate, and the outer edge of the sliding shoe plate is tightly attached to the tank wall to form an elastic mechanical sealing structure which has edge compensation under various working conditions. The support bracket is used for effectively enhancing, compensating and adjusting the sliding shoe plate, namely applying elasticity to the sliding shoe plate to the tank wall to enable the sliding shoe plate to be always contacted with the tank wall. The sealing film plays a role of sealing. The membrane supports the shell fragment and exerts pressure to the seal membrane so that seal membrane and bracket plate are closely laminated, guarantee sealed effect. The secondary sealing structure is a tongue-shaped sealing scraper. The primary sealing structure and the secondary sealing structure jointly form a double-sealing type high-efficiency sealing structure, the secondary sealing structure can further protect the primary sealing structure from being damaged by severe environment, and the service life of the primary sealing structure is prolonged.
The large compensation sealing structure for the tank wall and the floating plate in the embodiment seals the gas space between the floating plate and the tank wall to form a static sealing structure, so that gas-phase mass transfer in the upper space and the lower space of the floating plate is prevented. The large compensation sealing structure has low friction coefficient (only about 0.15, and the bag type sealing is about 0.4) with the tank wall, and can remarkably reduce the friction force between the sealing structure and the tank wall; the working compensation range is large, generally-100 mm- +350mm, when the tank body is seriously deformed or the floating disc moves due to the action of external force, and the distance between the floating disc and the tank wall is increased, the sealed sliding shoe plate moves along with the floating disc, and the sealing device is always kept in contact with the tank wall without separation and extends to the position below the liquid level through the good elasticity of the metal elastic plate. The sealing structure can be customized for each oil tank, the sealing structure is ensured to be always in full contact with the inner wall of the storage tank in the up-and-down operation process of the floating disc, a good sealing effect is achieved, and the service life of the large compensation sealing device is longer than or equal to 15 years.
Further, the inner edge of the primary sealing structure 2 and the inner edge of the secondary sealing structure 3 are connected with the edge plate of the floating plate 1 through a bolt connection structure; the bolt connection structure includes: the device comprises a bolt 5, a primary sealing pressure plate 6, a secondary sealing pressure plate 7, a first nut 8 and a second nut 9; the bolt 5 penetrates through the edge plate of the floating disc 1, and the primary sealing structure 2, the primary sealing pressing plate 6, the first nut 8, the secondary sealing structure 3, the secondary sealing pressing plate 7 and the second nut 9 are sequentially arranged on the bolt 5 from bottom to top.
Further, the bolt connection structure further comprises a reinforcing angle steel 10, wherein the reinforcing angle steel 10 is located at the connection position of the arc-shaped plate and the side plate of the edge plate of the floating plate 1 and is arranged on the bolt 5. The stability of the bolted structure can be enhanced.
Further, the bottom of the outer edge of the sliding track plate 21 is turned upwards to form a slot 25, and the bottom of the outer edge of the support bracket plate 22, the sealing film 23 and the film support spring piece 24 is arranged in the slot 25. The slots play a limiting role in the bottom of the support plate, the sealing film and the film supporting elastic sheet, and the structural stability is ensured.
Furthermore, the material of the sliding track plate, the supporting bracket plate and the membrane supporting elastic sheet is 1Cr17Ni7 stainless steel, namely S301 stainless steel, and the sliding track plate, the supporting bracket plate and the membrane supporting elastic sheet have certain hardness, excellent elasticity and extremely strong corrosion resistance.
Furthermore, the sealing film is made of polytetrafluoroethylene reinforced glass fiber cloth, namely Teflon. The sealing film material is a high-molecular oil-resistant anti-aging film, can resist the temperature of minus 70 ℃ to plus 380 ℃, can resist any acid-base solution and various organic solvents, and has excellent weather resistance, and the tensile breaking strength, the breaking elongation and the tearing strength are not lower than the I-type requirements specified in JC/T171.2.
Further, the thickness of the polytetrafluoroethylene reinforced glass fiber cloth is 0.25 mm.
Furthermore, the tongue-shaped sealing scraper is made of XPE material, namely chemical cross-linked polyethylene foam material.
Further, the bottom of the primary sealing structure is at least 100mm below the liquid level. The sealing structure is deeply arranged below 100mm of the liquid level, so that the sealing performance can be further ensured.
The large compensation sealing structure for the tank wall and the floating plate adopts the metal elastic plate as the elastic compensation component, and the compensation range can reach-100 to +350 mm; the floating disc and the inner sealing section of the tank wall have no air space, so that the service life of the sealing structure is prolonged to more than 15 years; and the inner floating roof storage tank is sealed and suitable for any tank volume; and can resist most of acid, alkali and organic solvents; the sealing structure is immersed below 100mm of the liquid level to ensure the sealing effect.
Example 2
The floating plate comprises a floating plate 1 and the large compensation sealing structure for the tank wall and the floating plate, wherein the large compensation sealing structure for the tank wall and the floating plate is connected with the edge of the floating plate 1.
The floating disc of the embodiment adopts a sealing structure, adopts a metal elastic plate as an elastic compensation part, and the compensation range can reach-100 to +350 mm; the floating disc and the inner sealing section of the tank wall have no air space, so that the service life of the sealing structure is prolonged to more than 15 years; and the inner floating roof storage tank is sealed and suitable for any tank volume; and can resist most of acid, alkali and organic solvents; the sealing structure is immersed below 100mm of the liquid level to ensure the sealing effect.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.
Claims (10)
1. The utility model provides a big compensation seal structure that is used for jar wall and floating plate which characterized in that:
the device comprises a circular primary sealing structure and a circular secondary sealing structure which are arranged around the edge of a floating disc; the inner edge of the primary sealing structure is connected with the edge plate of the floating disc, and the outer edge of the primary sealing structure extends towards the tank wall and is bent downwards; the inner edge of the secondary sealing structure is connected with the edge plate of the floating disc, and the outer edge of the secondary sealing structure extends towards the tank wall and is bent upwards;
by being close to a jar wall side direction is close to floating disc one side, once seal structure is including setting gradually: a slide plate, a support plate, a sealing film and a film supporting spring sheet; the outer edge of the sliding track plate is in sliding contact with the tank wall to form an elastic mechanical sealing structure; the supporting plate presses the sliding shoe plate to the tank wall; the membrane supporting elastic sheet presses the sealing membrane to enable the sealing membrane to be attached to the support plate; the sliding plate, the supporting bracket plate and the membrane supporting elastic sheet are all metal elastic plates;
the secondary sealing structure comprises a tongue-shaped sealing scraper; the outer edge of the tongue seal flight is in sliding contact with the tank wall.
2. A large compensating seal arrangement for a tank wall and a floating floor as claimed in claim 1, wherein:
the inner edge of the primary sealing structure and the inner edge of the secondary sealing structure are connected with the edge plate of the floating disc through a bolt connecting structure;
the bolt connection structure includes: the device comprises a bolt, a primary sealing pressure plate, a secondary sealing pressure plate, a first nut and a second nut; the bolt penetrates through the edge plate of the floating disc, and the primary sealing structure, the primary sealing pressing plate, the first nut, the secondary sealing structure, the secondary sealing pressing plate and the second nut are sequentially arranged on the bolt from bottom to top.
3. A large compensating seal structure for tank walls and floats as claimed in claim 2, wherein:
the bolt connecting structure further comprises a reinforcing angle steel, and the reinforcing angle steel is located at the connecting position of the arc-shaped plate and the side plate of the edge plate of the floating plate and is arranged on the bolt.
4. A large compensating seal arrangement for a tank wall and a floating floor as claimed in claim 1, wherein:
the bottom of the outer edge of the sliding plate is turned upwards to form a slot, and the bottoms of the outer edges of the support bracket plate, the sealing film and the film supporting elastic sheet are arranged in the slot.
5. A large compensating seal arrangement for a tank wall and a floating floor as claimed in claim 1, wherein:
the material of the sliding plate, the supporting plate and the membrane supporting elastic sheet is 1Cr17Ni7 stainless steel.
6. A large compensating seal arrangement for a tank wall and a floating floor as claimed in claim 1, wherein:
the sealing film is made of polytetrafluoroethylene reinforced glass fiber cloth.
7. A large compensating seal structure for tank walls and floating floors as claimed in claim 6, wherein:
the thickness of the polytetrafluoroethylene reinforced glass fiber cloth is 0.25 mm.
8. A large compensating seal arrangement for a tank wall and a floating floor as claimed in claim 1, wherein:
the tongue-shaped sealing scraper is made of XPE materials.
9. A large compensating seal arrangement for a tank wall and a floating floor as claimed in claim 1, wherein:
the bottom of the primary sealing structure is at least 100mm lower than the liquid level.
10. A floating plate, characterized in that:
comprising a floating disc and a large compensating sealing structure for tank walls and floating discs according to any of claims 1-9, which is connected to the edge of the floating disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220608489.0U CN216917108U (en) | 2022-03-18 | 2022-03-18 | Large compensation sealing structure for tank wall and floating disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220608489.0U CN216917108U (en) | 2022-03-18 | 2022-03-18 | Large compensation sealing structure for tank wall and floating disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216917108U true CN216917108U (en) | 2022-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220608489.0U Active CN216917108U (en) | 2022-03-18 | 2022-03-18 | Large compensation sealing structure for tank wall and floating disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216917108U (en) |
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2022
- 2022-03-18 CN CN202220608489.0U patent/CN216917108U/en active Active
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