阅读说明：本技术 一种防火防爆浮盘及防火方法 (Fireproof and explosion-proof floating disc and fireproof method ) 是由 苏进发 张倜哲 于 2021-03-24 设计创作，主要内容包括：本发明涉及储罐浮盘的技术领域,具体涉及一种防火防爆浮盘及防火方法。其中的一种防火防爆浮盘,包括固定在储罐本体顶部中心的储液池和设置在浮盘本体顶部中心的密封结构；以及密封结构的顶端面边沿铰接有若干挡件,且挡件倒扣在密封结构的顶端面,挡件与密封结构的顶端面点接触；储罐本体与浮盘本体之间形成一适于填充油液的储油腔体；其中储油腔体内压力增大时,密封结构能够顶起挡件至挡件与密封结构的顶端面面接触；挡件被顶起至折断后,挡件能够伸入储液池内,以使冷却液流出。通过挡件的设置在储油腔体内压力较小时起到防爆作用,在储油腔体内压力较大时起到打开储液池来冷却储油腔体的作用,同时还能对流出的冷却液起到导向作用。(The invention relates to the technical field of storage tank floating discs, in particular to a fireproof and explosion-proof floating disc and a fireproof method. The fireproof and explosion-proof floating disc comprises a liquid storage tank fixed in the center of the top of a storage tank body and a sealing structure arranged in the center of the top of the floating disc body; the edge of the top end face of the sealing structure is hinged with a plurality of blocking pieces, the blocking pieces are buckled on the top end face of the sealing structure in an inverted mode, and the blocking pieces are in point contact with the top end face of the sealing structure; an oil storage cavity suitable for being filled with oil is formed between the storage tank body and the floating disc body; when the pressure in the oil storage cavity is increased, the sealing structure can jack the stopper until the stopper is in surface-to-surface contact with the top end of the sealing structure; after the blocking piece is jacked up to be broken, the blocking piece can extend into the liquid storage pool, so that the cooling liquid flows out. The anti-explosion function is realized when the pressure in the oil storage cavity is low through the arrangement of the blocking piece, the effect of opening the liquid storage tank to cool the oil storage cavity is realized when the pressure in the oil storage cavity is high, and meanwhile, the guiding effect can also be realized on the flowing cooling liquid.)

1. A fire and explosion protection floating plate is characterized by comprising:

the floating disc type storage tank comprises a storage tank body, a floating disc body arranged in the storage tank body in a sliding mode, a liquid storage tank fixed in the center of the top of the storage tank body and a sealing structure arranged in the center of the top of the floating disc body; and

the edge of the top end face of the sealing structure is hinged with a plurality of blocking pieces, the blocking pieces are buckled on the top end face of the sealing structure in an inverted mode, and the blocking pieces are in point contact with the top end face of the sealing structure;

an oil storage cavity suitable for being filled with oil is formed between the storage tank body and the floating disc body; wherein

When the pressure in the oil storage cavity is increased, the sealing structure can jack the stopper until the stopper is in surface contact with the top end of the sealing structure;

and after the stopper is jacked up to be broken, the stopper can extend into the liquid storage pool so as to enable the cooling liquid to flow out.

2. A fire and explosion protection floating plate according to claim 1,

a through hole is formed in the center of the floating disc body;

the sealing structure comprises a sealing sleeve and a sealing disc, wherein the sealing sleeve is fixed on the floating disc body around the through hole, and the sealing disc is arranged in the sealing sleeve in a sliding manner;

the outer side wall of the sealing disc is attached to the inner side wall of the sealing sleeve; and

the stopper is hinged to the top of the sealing sleeve and is in point contact with the top end surface of the sealing disc; wherein

When the pressure in the oil storage cavity is increased, the sealing disc can jack the stopper until the stopper is in surface-to-surface contact with the top end of the sealing disc.

3. A fire and explosion protection floating plate according to claim 2,

the blocking piece comprises an upper blocking piece, a middle blocking piece and a lower blocking piece which are sequentially arranged from top to bottom;

the upper baffle plate is reversely buckled on the upper end surface of the sealing disc, and the upper baffle plate is in point contact with the upper end surface of the sealing disc;

the lower baffle plate is hinged with the sealing sleeve;

the upper blocking piece and the middle blocking piece are integrally arranged, the upper blocking piece and the middle blocking piece are vertically arranged, and a crease is arranged at the joint of the middle blocking piece and the lower blocking piece;

the sum of the lengths of the middle blocking piece and the lower blocking piece is smaller than the thickness of the sealing disc; wherein

When the sealing disc jacks up the upper blocking piece, the middle blocking piece and the lower blocking piece are bent by taking the crease as a center, so that the upper blocking piece is attached to the upper end face of the sealing disc, and the middle blocking piece is attached to the outer side wall of the sealing disc;

after the crease is broken, the upper blocking piece can stretch into the liquid storage tank.

4. A fire and explosion protection floating plate according to claim 3,

the fold is inwardly directed towards the sealing disc;

the longitudinal section of the crease is in an isosceles trapezoid shape, and the thickness of the crease accounts for 1/2-5/6 of the thickness of the middle baffle.

5. A fire and explosion protection floating plate according to claim 4,

the side wall of the middle blocking piece is fixedly connected with a limiting block, and the limiting block is positioned at one side close to the sealing disc;

the outer side wall of the sealing disc is provided with a limiting groove matched with the limiting block; wherein

When the middle separation blade is attached to the outer side wall of the sealing disc, the limiting block can be inserted into the limiting groove.

6. A fire and explosion protection floating plate according to claim 5,

a first push block and a second push block are fixedly connected to two sides of the end face of the upper blocking piece respectively, the first push block and the second push block are located on one side far away from the sealing disc respectively, the thickness of the first push block is larger than that of the second push block, and the second push block is close to the middle blocking piece;

a liquid outlet corresponding to the upper baffle is formed in the bottom of the liquid storage tank, a rotating rod is rotatably connected between two side walls of the liquid outlet, and a blocking block suitable for blocking the liquid outlet is fixedly connected to the rotating rod; wherein

When the upper blocking piece is jacked up, the first pushing block can push the blocking block to rotate so as to open the liquid outlet;

after the crease is broken, the cooling liquid can push the upper blocking piece to be separated from the sealing disc.

7. A fire and explosion protection floating plate according to claim 6,

the inner side wall of the bottom of the liquid storage tank is fixedly connected with an upper insertion block, and the upper insertion block is positioned at the liquid outlet;

two side walls of the liquid outlet are respectively provided with a sliding groove, and the rotating rod can slide along the sliding grooves; and

a lower insertion block matched with the upper insertion block is arranged on the bottom end face of the blocking block; wherein

The first pushing block pushes the blocking block to rotate to the position, where the blocking block abuts against the second pushing block, and the second pushing block can push the blocking block to slide, so that the lower insertion block is meshed with the upper insertion block.

8. A fire and explosion protection floating plate according to claim 7,

the floating disc body is provided with a plurality of liquid discharging structures;

the liquid discharge structure comprises an upper cylinder fixed on the upper end surface of the floating disc and a lower cylinder fixed on the lower end surface of the floating disc;

the lower cylinder body is suitable for containing cooling liquid flowing out of the liquid storage tank; wherein

After the cooling liquid exceeds the overflow height of the lower barrel, the cooling liquid can overflow from the bottom center of the lower barrel to the oil storage cavity.

9. A method of fire protecting a fire and explosion protection float, comprising providing a fire and explosion protection float according to claim 8;

when the pressure in the oil storage cavity is increased, the sealing disc is jacked up;

pushing the upper retaining sheet by the sealing disc top until the upper retaining sheet is attached to the upper end face of the sealing disc and the middle retaining sheet is attached to the outer side wall of the sealing disc, so that the upper retaining sheet blocks the sealing disc from coming out of the sealing sleeve;

when the pressure in the oil storage cavity is continuously increased to exceed the maximum stress of the crease, the crease is broken, and the upper baffle plate is continuously pushed by the sealing disc;

when the upper blocking piece is pushed until the first pushing block is contacted with the blocking block, the first pushing block pushes the blocking block to rotate so as to open the liquid outlet;

when the blocking block rotates to abut against the second pushing block, the second pushing block pushes the blocking block to slide inwards to enable the lower inserting block to be meshed with the upper inserting block, so that the liquid outlet is kept in an open state;

after the cooling liquid is discharged from the liquid outlet, the upper separation blade is pushed to be separated from the sealing disc, so that the sealing disc is separated from the sealing sleeve;

the cooling liquid is guided to the floating disc through the blocking block, and the cooling liquid is discharged into the oil storage cavity through the lower cylinder.

Technical Field

The invention relates to the technical field of storage tank floating discs, in particular to a fireproof and explosion-proof floating disc and a fireproof method.

Background

At present, a fire-fighting system is established in a tank area, a probe is installed on the upper portion of an oil tank, the probe is started after the oil tank catches fire, signals are transmitted to a foaming station, a large amount of foam is sprayed into the tank through a conveying pipe, and the fire is extinguished.

But through the probe limitation great, damage and when not in time changing when the probe, can't detect the oil storage tank, simultaneously, change the probe and cause the increase of cost undoubtedly.

Disclosure of Invention

In order to solve the technical problems, the invention provides a fireproof and explosion-proof floating disc and a fireproof method.

The invention aims to provide a fireproof and explosion-proof floating disc, which comprises: the floating disc type storage tank comprises a storage tank body, a floating disc body arranged in the storage tank body in a sliding mode, a liquid storage tank fixed in the center of the top of the storage tank body and a sealing structure arranged in the center of the top of the floating disc body; the edge of the top end face of the sealing structure is hinged with a plurality of blocking pieces, the blocking pieces are buckled on the top end face of the sealing structure in an inverted mode, and the blocking pieces are in point contact with the top end face of the sealing structure; an oil storage cavity suitable for being filled with oil is formed between the storage tank body and the floating disc body; when the pressure in the oil storage cavity is increased, the sealing structure can jack the stopper until the stopper is in surface contact with the top end of the sealing structure; and after the stopper is jacked up to be broken, the stopper can extend into the liquid storage pool so as to enable the cooling liquid to flow out.

Specifically, a through hole is formed in the center of the floating disc body; the sealing structure comprises a sealing sleeve and a sealing disc, wherein the sealing sleeve is fixed on the floating disc body around the through hole, and the sealing disc is arranged in the sealing sleeve in a sliding manner; the outer side wall of the sealing disc is attached to the inner side wall of the sealing sleeve; the stopper is hinged to the top of the sealing sleeve and is in point contact with the top end surface of the sealing disc; when the pressure in the oil storage cavity is increased, the sealing disc can jack the stopper until the stopper is in surface contact with the top end of the sealing disc.

Specifically, the blocking piece comprises an upper blocking piece, a middle blocking piece and a lower blocking piece which are sequentially arranged from top to bottom; the upper baffle plate is reversely buckled on the upper end surface of the sealing disc, and the upper baffle plate is in point contact with the upper end surface of the sealing disc; the lower baffle plate is hinged with the sealing sleeve; the upper blocking piece and the middle blocking piece are integrally arranged, the upper blocking piece and the middle blocking piece are vertically arranged, and a crease is arranged at the joint of the middle blocking piece and the lower blocking piece; the sum of the lengths of the middle blocking piece and the lower blocking piece is smaller than the thickness of the sealing disc; when the sealing disc jacks up the upper blocking piece, the middle blocking piece and the lower blocking piece are bent by taking the crease as a center, so that the upper blocking piece is attached to the upper end face of the sealing disc, and the middle blocking piece is attached to the outer side wall of the sealing disc; after the crease is broken, the upper blocking piece can stretch into the liquid storage tank.

Specifically, the fold is inward toward the sealing disc; the longitudinal section of the crease is in an isosceles trapezoid shape, and the thickness of the crease accounts for 1/2-5/6 of the thickness of the middle baffle.

Specifically, the side wall of the middle blocking piece is fixedly connected with a limiting block, and the limiting block is positioned on one side close to the sealing disc; the outer side wall of the sealing disc is provided with a limiting groove matched with the limiting block; when the middle separation blade is attached to the outer side wall of the sealing disc, the limiting block can be inserted into the limiting groove.

Specifically, a first push block and a second push block are fixedly connected to two sides of the end face of the upper blocking piece respectively, the first push block and the second push block are located on one side far away from the sealing disc respectively, the thickness of the first push block is larger than that of the second push block, and the second push block is close to the middle blocking piece; a liquid outlet corresponding to the upper baffle is formed in the bottom of the liquid storage tank, a rotating rod is rotatably connected between two side walls of the liquid outlet, and a blocking block suitable for blocking the liquid outlet is fixedly connected to the rotating rod; when the upper blocking piece is jacked up, the first pushing block can push the blocking block to rotate so as to open the liquid outlet; after the crease is broken, the cooling liquid can push the upper blocking piece to be separated from the sealing disc.

Specifically, the inner side wall of the bottom of the liquid storage tank is fixedly connected with an upper insertion block, and the upper insertion block is positioned at the liquid outlet; two side walls of the liquid outlet are respectively provided with a sliding groove, and the rotating rod can slide along the sliding grooves; the bottom end surface of the blocking block is provided with a lower insertion block matched with the upper insertion block; the first pushing block pushes the blocking block to rotate to the position, where the blocking block abuts against the second pushing block, and the second pushing block can push the blocking block to slide, so that the lower insertion block is meshed with the upper insertion block.

Specifically, a plurality of liquid discharging structures are arranged on the floating disc body; the liquid discharge structure comprises an upper cylinder fixed on the upper end surface of the floating disc and a lower cylinder fixed on the lower end surface of the floating disc; the lower cylinder body is suitable for containing cooling liquid flowing out of the liquid storage tank; after the cooling liquid exceeds the overflow height of the lower barrel, the cooling liquid can overflow from the center of the bottom of the lower barrel to the oil storage cavity.

In another aspect, the invention also provides a fire protection method of the fire and explosion protection floating plate, which comprises the fire and explosion protection floating plate.

Specifically, when the pressure in the oil storage cavity is increased, the sealing disc is jacked up; pushing the upper retaining sheet by the sealing disc top until the upper retaining sheet is attached to the upper end face of the sealing disc and the middle retaining sheet is attached to the outer side wall of the sealing disc, so that the upper retaining sheet blocks the sealing disc from coming out of the sealing sleeve; when the pressure in the oil storage cavity is continuously increased to exceed the maximum stress of the crease, the crease is broken, and the upper baffle plate is continuously pushed by the sealing disc; when the upper blocking piece is pushed until the first pushing block is contacted with the blocking block, the first pushing block pushes the blocking block to rotate so as to open the liquid outlet; when the blocking block rotates to abut against the second pushing block, the second pushing block pushes the blocking block to slide inwards to enable the lower inserting block to be meshed with the upper inserting block, so that the liquid outlet is kept in an open state; after the cooling liquid is discharged from the liquid outlet, the upper separation blade is pushed to be separated from the sealing disc, so that the sealing disc is separated from the sealing sleeve; the cooling liquid is guided to the floating disc through the blocking block, and the cooling liquid is discharged into the oil storage cavity through the lower cylinder.

The fireproof and explosion-proof floating disc and the fireproof method have the advantages that the blocking piece which is abutted against the sealing structure is arranged on the sealing structure, so that when the pressure in the oil storage cavity rises, the blocking piece can block the air leakage of the sealing structure, the accidental air leakage of the sealing structure except the explosion of the oil storage cavity is avoided, and the explosion-proof effect is achieved; keep off the piece and can be broken after oil storage cavity internal pressure continues to rise to explosion pressure, and then keep off and can stretch into in the liquid storage tank so that the coolant liquid in the liquid storage tank flows out and carries out cooling, can also play the effect of putting out a fire to the oil storage cavity if the internal fire of oil storage cavity simultaneously.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of a preferred embodiment of an initial state of a fire and explosion protection floating plate of the invention;

FIG. 2 is a schematic structural view of a preferred embodiment of a bending state of the fireproof and explosion-proof floating plate of the invention;

FIG. 3 is a schematic structural view of a preferred embodiment of the present invention in a broken state of a fireproof and explosion-proof floating plate;

FIG. 4 is an exploded view of the barrier and seal arrangement of the present invention;

FIG. 5 is a schematic structural view of a preferred embodiment of the flow direction of the fire and explosion protection floating plate cooling liquid of the invention;

FIG. 6 is a schematic view of a preferred embodiment of a blocking block for blocking a liquid outlet according to the present invention;

FIG. 7 is a schematic structural view of a preferred embodiment of the liquid discharge structure of the present invention;

fig. 8 is a perspective view of a preferred embodiment of the liquid discharge structure of the present invention.

In the figure:

1. a tank body; 11. an oil storage cavity; 2. a float disc body; 21. a through hole; 3. a liquid storage tank; 31. a liquid outlet; 32. rotating the rod; 33. blocking; 331. a lower insert block; 34. an upper insertion block; 35. a sliding groove; 4. a sealing structure; 41. a sealing sleeve; 42. sealing the disc; 421. a limiting groove; 5. a stopper; 51. a blocking piece is arranged; 52. a middle baffle plate; 53. a lower baffle plate; 54. folding; 55. a limiting block; 56. a first push block; 57. a second push block; 6. a liquid discharge structure; 61. an upper cylinder body; 611. an upper tray body; 612. an overflow sleeve body; 613. an overflow port; 62. a lower cylinder body; 621. a lower tray body; 622. an outer casing; 623. an inner sleeve body.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

Example one

The traditional storage tank comprises a storage tank body 1 and a floating disc body 2 which is connected in the storage tank body 1 in a sliding manner, wherein an oil storage cavity 11 suitable for filling oil is formed between the storage tank body 1 and the floating disc body 2, the floating disc body 2 is lifted through discharging the oil in the oil storage cavity 11, the floating disc body 2 plays a role in reducing the volatilization loss of the oil to the oil in the oil storage cavity 11, the floating disc body 2 is generally required to be tightly attached to the inner side wall of the storage tank body 1, so that the sealing between the floating disc body 2 and the inner side wall of the storage tank body 1 is realized, when the oil storage cavity 11 explodes, the whole floating disc body 2 is damaged due to the sealing between the floating disc body 2 and the inner side wall of the storage tank body 1, and meanwhile, if the oil is burnt in the oil storage cavity 11, a fire fighter generally waits for the fire fighting opportunity to miss the best fire fighting opportunity, in order to solve the above problems, the following schemes need to be designed:

as shown in fig. 1 to 8, a sealing structure 4 is disposed at the top center of the floating plate body 2, and by the design of the sealing structure 4, when an explosion occurs inside the oil storage cavity 11, the pressure inside the oil storage cavity 11 is extremely increased, and the sealing structure 4 can be pushed open to release the pressure, thereby avoiding the situation that the floating plate body 2 is damaged by the explosion.

The specific sealing structure 4 is that a through hole 21 is formed in the center of the floating disc body 2, the through hole 21 is used as a pressure relief hole of the floating disc body 2, the sealing structure 4 comprises a sealing sleeve 41 which is fixed on the floating disc body 2 around the through hole 21, and a sealing disc 42 which is arranged in the sealing sleeve 41 in a sliding manner, the specific sealing sleeve 41 is positioned on the upper end face of the floating disc body 2, and the sealing sleeve 41 extends upwards; the outer side wall of the sealing disc 42 is attached to the inner side wall of the sealing sleeve 41, so that sealing between the sealing disc 42 and the sealing sleeve 41 under the condition that explosion does not occur is achieved, and therefore the effect of reducing oil volatilization loss of the whole floating disc body 2 is guaranteed.

It should be noted that when the pressure in the oil storage chamber 11 increases, the seal disk 42 will be accidentally removed from the seal sleeve 41, and in order to solve the above problem, the following design needs to be made: a plurality of blocking pieces 5 are arranged on the edge of the upper end face of the sealing structure 4, specifically, the blocking pieces 5 are hinged to the top of the sealing sleeve 41, the blocking pieces 5 extend along the radial direction of the sealing disc 42 and are buckled on the sealing disc 42 in an inverted mode, and the blocking pieces 5 are in point contact with the top end face of the sealing disc 42; through the design of the stopper 5, when the pressure in the oil storage cavity 11 is increased so that the sealing disc 42 is lifted, the sealing disc 42 can lift the stopper 5 until the stopper 5 is in surface contact with the top end surface of the sealing disc 42, that is, the stopper 5 is arranged in the oil storage cavity 11, and when the pressure is not high, the sealing disc 42 can be prevented from accidentally coming out of the sealing sleeve 41, so that the explosion-proof effect is achieved; when the pressure in the oil storage cavity 11 continues to increase, the stopper 5 is continuously lifted and broken, at this time, the sealing disc 42 is separated from the sealing sleeve 41, and the pressure in the oil storage cavity 11 is released.

It should be noted that when the pressure in the oil storage cavity 11 reaches the broken stopper 5, it is enough to cause the explosion of the oil storage cavity 11, and the explosion of the oil storage cavity 11 is accompanied by the fire inside the oil storage cavity 11, and in order to solve the above problems, the following scheme is required to realize the fire extinguishing: set up a liquid reserve tank 3 in sealed top of dish 42, this liquid reserve tank 3 is used for storing the coolant liquid, and this liquid reserve tank 3 is fixed mutually through the inside wall of support frame with storage tank body 1, and simultaneously, this liquid reserve tank 3 can be opened from the bottom to make the coolant liquid in the liquid reserve tank 3 flow out, and is specific, keeps off 5 after blockking that piece 5 is broken, keeps off 5 and can continue in by jack-up to stretching into liquid reserve tank 3, and then triggers opening of liquid reserve tank 3, and the coolant liquid can be put out a fire with flowing out.

The stopper 5 has the following specific structure that the stopper 5 comprises an upper baffle 51, a middle baffle 52 and a lower baffle 53 which are sequentially arranged from top to bottom; the upper baffle piece 51 is buckled on the upper end surface of the sealing disc 42 in an initial state, and the upper baffle piece 51 is in point contact with the upper end surface of the sealing disc 42; the lower baffle plate 53 is hinged with the sealing sleeve 41; the upper baffle piece 51 and the middle baffle piece 52 are integrally arranged, the upper baffle piece 51 and the middle baffle piece 52 are vertically arranged, an included angle formed between the upper baffle piece 51 and the middle baffle piece 52 faces the sealing disc 42, and a crease 54 is arranged at the joint of the middle baffle piece 52 and the lower baffle piece 53; the sum of the lengths of the middle blocking piece 52 and the lower blocking piece 53 is smaller than the thickness of the sealing disc 42, and the sealing disc 42 is not yet released from the sealing sleeve 41 when the middle blocking piece 52 is separated from the lower blocking piece 53; when the sealing disc 42 jacks up the upper stop piece 51, the middle stop piece 52 and the lower stop piece 53 are bent around the crease 54, the middle stop piece 52 abuts against the sealing disc 42, so that the upper stop piece 51 is attached to the upper end surface of the sealing disc 42, and the middle stop piece 52 is attached to the outer side wall of the sealing disc 42; after the fold 54 is broken, the upper baffle 51 can extend into the liquid storage tank 3, and then the upper baffle 51 triggers the flow of the cooling liquid to extinguish the fire.

In order to facilitate the folding and breaking of the fold 54, the fold 54 faces inward toward the sealing disc 42, so that when the middle blocking piece 52 is attached to the outer side wall of the sealing disc 42, the fold 54 can be unfolded toward two sides to open toward the sealing disc 42, and if the fold 54 is located on the side away from the sealing disc 42, the two side walls will be close to each other during the folding process of the fold 54, and at this time, it is difficult to further break the fold 54; the longitudinal section of the crease 54 is isosceles trapezoid, the thickness of the crease 54 accounts for 1/2-5/6 of the thickness of the middle baffle plate 52, the breaking stress of the crease 54 can be adjusted by adjusting the thickness of the crease 54, so that different pressures generated by explosion can be adapted, and the thickness of the crease 54 accounts for 3/4 of the thickness of the middle baffle plate 52 can be preferably adopted, so that the design can facilitate bending of the crease 54 and breaking of the crease 54.

It should be noted that when the sealing disk 42 is lifted by air pressure, if the sealing disk 42 rotates, the friction between the sealing disk 42 and the sealing sleeve 41 will be severe, and the sealing effect between the sealing disk 42 and the sealing sleeve 41 will be affected, in order to solve the above problem, the upper blocking piece 51 contacts with the surface of the upper end surface of the sealing disk 42, and the middle blocking piece 52 contacts with the surface of the outer side wall of the sealing disk 42 to prevent the sealing disk 42 from rotating, but when the air pressure in the oil storage cavity 11 is greatly increased, the sealing disk 42 will still rotate, so it is necessary to design a solution that a limit block 55 is fixedly connected to the side wall of the middle blocking piece 52, and the limit block 55 is located at the side close to the sealing disk; the outer side wall of the sealing disc 42 is provided with a limit groove 421 matched with the limit block 55; wherein well separation blade 52 with during the lateral wall laminating of sealed dish 42, stopper 55 can insert spacing groove 421, stopper 55 inserts plays the guide effect to sealed dish 42's lifting after spacing groove 421, has guaranteed the linearity that sealed dish 42 goes up and down, and simultaneously, stopper 55 can play the effect of restricting sealed dish 42 pivoted, reduces the friction between sealed dish 42 and the sealing sleeve 41 like this to reduce the wearing and tearing between sealed dish 42 and the sealing sleeve 41, improve sealed dish 42 and sealing sleeve 41's life.

Specifically, the upper blocking piece 51 triggers the coolant to flow out in a manner that a first pushing block 56 and a second pushing block 57 are fixedly connected to two sides of the end surface of the upper blocking piece 51 respectively, the first pushing block 56 and the second pushing block 57 are located on one side away from the sealing disc 42 respectively, namely, the first pushing block 56 and the second pushing block 57 both extend from bottom to top, the thickness of the first pushing block 56 is greater than that of the second pushing block 57, namely, when the first pushing block 56 and the second pushing block 57 are on the same horizontal line, the first pushing block 56 is higher than the second pushing block 57, when the upper blocking piece 51 is attached to the upper end surface of the sealing disc 42, the first pushing block 56 and the second pushing block 57 are located on the same horizontal plane, and the second pushing block 57 is close to the middle blocking piece 52; a liquid outlet 31 corresponding to the upper baffle 51 is formed in the bottom of the liquid storage tank 3, a rotating rod 32 is rotatably connected between two side walls of the liquid outlet 31, and the rotating rod 32 is fixedly connected with a blocking block 33 suitable for blocking the liquid outlet 31; when the upper blocking piece 51 is jacked up, the first pushing block 56 firstly contacts the blocking block 33 and pushes the blocking block 33 to rotate around the rotating rod 32, so that the liquid outlet 31 is opened, and the cooling liquid in the liquid storage tank 3 flows out; after the fold 54 is broken, the middle flap 52 loses its hold of the lower flap 53, and the coolant can push the upper flap 51 away from the sealing disk 42.

In order to keep the cooling liquid continuously discharged from the liquid outlet 31, an upper insert block 34 is fixedly connected to the inner side wall of the bottom of the liquid storage tank 3, and the upper insert block 34 is located at the liquid outlet 31; two side walls of the liquid outlet 31 are respectively provided with a sliding groove 35, and two ends of the rotating rod 32 are respectively inserted into the two sliding grooves 35, so that the rotating rod 32 can slide along the sliding grooves 35; a lower insertion block 331 matched with the upper insertion block 34 is arranged on the bottom end surface of the block 33; after the first push block 56 pushes the blocking block 33 to rotate, the blocking block 33 can abut against the second push block 57, at this time, the second push block 57 can push the blocking block 33 to slide in the process that the second push block 57 rises along with the upper blocking piece 51, specifically, the lower insertion block 331 can slide in the direction of the upper insertion block 34 and cross over the upper insertion block 34, when the cooling liquid flows out, the upper blocking piece 51 and the middle blocking piece 52 can be pushed to be separated from the sealing cover, so that the lower insertion block 331 is engaged with the upper insertion block 34, thereby keeping the inclined state of the blocking block, namely, keeping the liquid outlet 31 in an open state, the cooling liquid can continuously flow out for extinguishing fire, meanwhile, most of the cooling liquid directly falls on the floating disc body 2 under the guidance of the blocking block 33, only a very small amount of cooling liquid can flow into the oil storage cavity 11 from the sealing sleeve 41, and then most of the cooling liquid passes through the floating disc body 2 to extinguish the interior of the oil storage cavity 11, the design has better utilization effect on the cooling liquid.

In this embodiment, can continue output for the coolant liquid, can be directly at a liquid reserve tank 3 external connection pipeline, through constantly letting in liquid reserve tank 3 with the coolant liquid, supply the coolant liquid, the coolant liquid also can adopt fire prevention foam simultaneously.

In order to enable the cooling liquid to pass through the floating disc body 2, a plurality of liquid discharging structures 6 are arranged on the floating disc body 2; the liquid discharge structure 6 comprises an upper cylinder 61 fixed on the upper end surface of the floating plate and a lower cylinder 62 fixed on the lower end surface of the floating plate; the lower cylinder 62 is suitable for containing the cooling liquid flowing out from the liquid storage tank 3; after the coolant exceeds the overflow height of the lower cylinder 62, the coolant can overflow from the bottom center of the lower cylinder 62 into the oil storage cavity 11.

The structure of the lower cylinder 62 is as follows, the lower cylinder 62 is composed of a lower disc 621, an outer sleeve 622 and an inner sleeve 623 which are mounted on the lower disc 621, the outer sleeve 622 and the inner sleeve 623 are coaxially arranged, the lower disc 621 and the floating disc body 2 are fixed in a welding mode, the outer sleeve 622, the lower disc 621, the inner sleeve 623 and the lower disc 621 are formed in an integrated forming mode, the area between the outer sleeve 622 and the inner sleeve 623 is the area for containing water, when the cooling liquid on the floating disc body 2 is less, a small amount of cooling liquid can pass through the upper cylinder 61 and be cached between the outer sleeve 622 and the inner sleeve 623, the outer sleeve 622 extends to the top end surface of the floating disc body 2, the lower disc 621 is a ring body, the middle part of the lower disc is hollow, the diameter of the hollow is equal to the inner diameter of the inner sleeve 623, if the cooling liquid in the area between the inner sleeve 623 and the outer sleeve 622 is too much, the cooling liquid level in the area is higher than the height of the inner sleeve 623, the cooling liquid overflows from the top of the inner sleeve 623 to the lower part of the floating disc body 2, namely the oil storage cavity 11 from top to bottom.

The structure of the upper cylinder 61 is as follows, the upper cylinder 61 is composed of an upper disc 611 and an overflow sleeve 612 installed at the bottom of the upper disc 611, the overflow sleeve 612 is coaxially disposed with the outer sleeve 622 and the inner sleeve 623, the overflow sleeve 612 is located between the outer sleeve 622 and the inner sleeve 623, in order to allow the cooling liquid on the floating plate body 2 to penetrate between the outer sleeve 622 and the inner sleeve 623, the upper disc 611 is opened with an overflow port 613, the overflow port 613 is located between the overflow sleeve 612 and the outer sleeve 622, so that the cooling liquid on the floating plate body 2 can flow between the outer sleeve 622 and the inner sleeve 623 through the overflow port 613, thereby collecting the cooling liquid and further realizing sealing.

In this embodiment, this fire and explosion proof floating plate can also be used as explosion proof tester, can set up pressure sensor on floating plate body 2 and on the interior diapire and the inside wall of storage tank body 1 respectively, with the inside explosion pressure of test storage tank, set up temperature sensor and test the inside explosion temperature of storage tank, and set up a plurality of free field pressure sensor outside storage tank body 1, with the test explosion shock wave, through setting up floating plate body 2 in the position department of 1.5m apart from the interior diapire of storage tank body 1, ignite the explosion through methane-air explosive mixture or TNT cartridge in oil storage cavity 11, when explosion pressure reaches 0.2~0.3 MPa in oil storage cavity 11, crease 54 breaks.

In this embodiment, the fire-proof and explosion-proof floating plate can also be used as a fire-proof tester, the sealing plate 42 is removed, the fuel is poured into the oil storage cavity 11 from the sealing sleeve 41, the fuel is selected from a medium which does not have black smoke as much as possible, acetone can be arranged to treat the black smoke, the fuel is ignited, the combustion test is started, and the time is recorded; recording whole-course shooting and photographing; the test lasts for 2 hours, and the appearance change of the floating disc body 2 is observed and recorded every 10 minutes; fire-fighting foam is added on the floating disc body 2 at any time according to the situation in the combustion process to prevent flame from spreading; adding fuel at proper time according to the height of the fuel liquid level in the combustion process; extinguishing fire after burning for 2 hours; and observing the appearance and the buoyancy condition of the floating disc body 2 after fire extinguishment, and recording and summarizing the appearance and the buoyancy condition.

Example two

The second embodiment further provides a fire protection method for the fire and explosion protection floating plate on the basis of the first embodiment, wherein a structure of the fire and explosion protection floating plate is the same as that of the first embodiment, and details are not repeated here.

Specifically, when the pressure in the oil storage chamber 11 increases, the seal plate 42 is lifted up; the upper baffle piece 51 is pushed by the sealing disc 42, the upper baffle piece 51 is jointed with the upper end surface of the sealing disc 42, and the middle baffle piece 52 is jointed with the outer side wall of the sealing disc 42, so that the upper baffle piece 51 blocks the sealing disc 42 to be separated from the sealing sleeve 41; when the pressure in the oil storage cavity 11 continues to increase to exceed the maximum stress of the crease 54, the crease 54 is broken, and the upper baffle plate 51 continues to be pushed by the sealing disc 42; when the upper blocking piece 51 is pushed to the position where the first pushing block 56 contacts with the blocking block 33, the first pushing block 56 pushes the blocking block 33 to rotate so as to open the liquid outlet 31; when the block 33 rotates to abut against the second pushing block 57, the second pushing block 57 pushes the block 33 to slide inward to engage the lower insertion block 331 with the upper insertion block 34, so that the liquid outlet 31 is kept open; after the cooling liquid is discharged from the liquid outlet 31, the upper baffle piece 51 is pushed to be separated from the sealing disc 42, so that the sealing disc 42 is separated from the sealing sleeve 41; the cooling liquid is guided to the floating disc through the blocking block 33, and is discharged into the oil storage cavity 11 through the lower cylinder 62.

In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.