CN218280352U - Preset perfluorohexanone fire extinguishing and explosion suppression device for fire inside oil storage tank - Google Patents

Abstract

The invention relates to a preset perfluorohexanone fire extinguishing and explosion suppression device for a fire inside an oil storage tank, belonging to the technical field of fire safety fire extinguishing products; the pipeline of UNICOM inside and outside the oil storage tank bottom is established, and the pipeline that is located the oil storage tank outside passes through the stop valve and is connected with the explosion suppressant feeding mechanism that puts out a fire, and the pipeline that is located the oil storage tank inside passes through the hose and floats and be connected with the shower nozzle subassembly, and the fire extinguishing agent jet orifice that floats and be used for guaranteeing the shower nozzle subassembly is in all the time fluid top in the oil storage tank will put out a fire the explosion suppressant level and spout the fluid upper surface when making the shower nozzle subassembly spout. The fire extinguishing explosion suppressant can be sprayed to the surface of the liquid oil product when the oil product in the oil storage tank is combusted, particularly perfluorohexanone is sprayed to separate the liquid oil product from the vapor oil product, the liquid oil product is rapidly extinguished while the temperature is reduced, and continuous combustion and explosion are avoided; when a fire disaster occurs outside the oil storage tank, the fire extinguishing explosion suppression agent is sprayed to reduce the temperature in the oil storage tank, so that the fire extinguishing agent in the gas oil material reaches the inerting explosion suppression concentration, and the oil material is prevented from burning and exploding.

Description

Preset perfluorohexanone fire extinguishing and explosion suppression device for fire inside oil storage tank

Technical Field

The utility model relates to the technical field of fire-fighting safety fire-extinguishing products, in particular to a preset perfluorohexanone fire-extinguishing explosion suppression device aiming at fire disasters inside an oil storage tank.

Background

With the rapid development of national economy, petroleum and petroleum products are more and more widely applied in production and life, various oil depots and gas stations are increasingly used, an oil tank is the most important equipment for storing bulk oil, and oil storage in the oil tank is the most common oil storage mode currently applied. Various oil products stored in the oil tank generally have the properties of easy volatilization, easy loss, easy combustion, easy explosion and the like, and once a fire disaster occurs, great economic loss is caused, so that the fire extinguishing safety is particularly important, and the problem of preventing the oil products in the oil tank from being combusted and exploded to become a fire safety product field needs to be solved urgently.

The perfluorohexanone fire extinguishing agent is a new generation of clean environment-friendly gas fire extinguishing agent which can replace a heptafluoropropane fire extinguishing agent. It is stored in liquid state at normal temperature, boiling point is 49.2 deg.c, and during vaporization, it absorbs a great deal of heat and can lower the local temperature in fire scene obviously. The perfluorohexanone has a gaseous density about 10.5 times that of air, has strong settling capacity in air, and can effectively retain and cover horizontal surfaces. Thus, perfluorohexanone, although a gaseous extinguishing agent, can also be used for open space fire suppression.

It is reported that the push-pull car type perfluorohexanone fire extinguishing device is used abroad to extinguish oil pan fire with the diameter of about 10 meters in an open space. In the fire extinguishing process, a fireman operates a fire extinguishing agent spray gun to extinguish fire from one side of an oil pan, a high-concentration gaseous perfluorohexanone fire extinguishing agent is distributed above the oil level of a part which is already extinguished, the oil cannot be re-combusted, the fireman enters the oil pan from the open fire extinguishing oil, and the fire extinguishing agent is continuously sprayed at the edge of the open fire to gradually enlarge the fire extinguishing area until the fire of the whole oil pan is extinguished. Finally, the oil surface of the whole oil pan is covered with a layer of perfluorohexanone fire extinguishing agent, and the oil pan can not be ignited by open fire and is in a relatively safe state.

The oil-discharging nitrogen-injecting fire extinguishing device is an effective means for extinguishing transformer fire in China. The transformer fire is similar to the fire of a small oil tank, once the fire occurs, the internal open fire is not easy to extinguish, and the transformer fire has higher explosion risk. When a transformer fire disaster occurs, the oil-discharging nitrogen-injecting fire extinguishing device injects nitrogen from the bottom inside the transformer, so that the temperature of transformer oil is reduced, and the nitrogen with higher concentration can also play a fire extinguishing and explosion suppression function. Because nitrogen gas efficiency of putting out a fire is not high, in order to reduce the risk, when putting out a fire, need get rid of transformer oil to the outside hydraulic oil safety storage tank of transformer in.

The fire extinguishing concentration of nitrogen against oil fires is about 36%, and the fire extinguishing concentration of perfluorohexanone against oil fires is about 4.5%. The perfluorohexanone has obvious fire extinguishing efficiency, high pressure nitrogen and obvious fire extinguishing and explosion suppression effects.

The fire extinguishing agent is combined with the characteristics that the fire extinguishing agent can extinguish large oil pan fire in an open space, liquid is sprayed and quickly vaporized to absorb a large amount of heat, the gaseous state density is more than 10 times that of air, the oil surface can be covered to keep a high-concentration fire extinguishing agent, the volume concentration exceeds 4.5 percent, oil fire can be extinguished and the like, when a fire breaks out in an oil storage tank, a large amount of the fire extinguishing agent is quickly sprayed on the upper surface of oil, the fire in the oil tank is extinguished, and explosion caused by internal fire is suppressed.

The national standard of perfluorohexanone fire extinguishing agent is formally put into a standard compilation plan in 5 months in 2020, and after the national standard is issued, the fluorohexanone fire extinguishing agent gradually and comprehensively replaces heptafluoropropane which is a mainstream gas fire extinguishing agent at present, and the solution covered by the patent and utilizing the unique advantages of the perfluorohexanone fire extinguishing agent also has a good popularization and application space.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem of putting out the inside conflagration of oil storage tank, this disclosure provides a preset perfluorohexanone explosion suppression device that puts out a fire to the inside conflagration of oil storage tank, and the device is prefabricated inside and outside the oil storage tank, can put out the inside conflagration of the oil of storing in the oil storage tank and reduce the explosion risk that inside conflagration arouses.

The embodiment of the utility model provides a preset formula explosion suppression device of putting out a fire to inside conflagration of oil storage tank, including extinguishing explosion suppression agent feeding mechanism, hose, cursory and shower nozzle subassembly, the pipeline of UNICOM outside in the oil storage tank bottom is established is located the oil storage tank is outside the pipeline passes through the stop valve and is connected with extinguishing explosion suppression agent feeding mechanism, is located inside the oil storage tank the pipeline passes cursory and is connected with the shower nozzle subassembly through the hose, and the cursory fire suppression agent jet orifice that is used for guaranteeing the shower nozzle subassembly is in all the time fluid top in the oil storage tank will extinguish the explosion suppression agent level when making the shower nozzle subassembly spout and put the fluid upper surface.

According to a specific implementation manner of the embodiment of the disclosure, the two ends of the hose are respectively press-riveted with a hose movable nut joint for being hermetically connected with the pipeline or the spray head assembly.

According to a specific implementation of the disclosed embodiment, the hose is made of a material having light weight, pressure resistant, high temperature resistant, and flame retardant properties.

According to a specific implementation manner of the embodiment of the disclosure, the hose is made of glass fiber.

According to a specific implementation manner of the embodiment of the disclosure, the buoy is made of materials with light weight, high temperature resistance, corrosion resistance and low heat conductivity.

According to a specific implementation manner of the embodiment of the disclosure, the float is made of foamed aluminum.

According to a specific implementation manner of the embodiment of the disclosure, the fire extinguishing and explosion suppression agent supply device is a fire extinguishing and explosion suppression agent bottle group or a mobile fire extinguishing and explosion suppression agent pump group vehicle.

According to a concrete implementation of this disclosure, the shower nozzle subassembly is including opening shower nozzle, end cover, blanking cover and the pressure spring of fire extinguishing agent jet orifice are established in the shower nozzle and can follow its axial freely moving's blanking cover, tip installation end cover, and the blanking cover clamps the pressure spring with the end cover is middle, through pressure spring pretightning force maintenance blanking cover, through the blanking cover for the position of fire extinguishing agent jet orifice is opened or is closed the shower nozzle subassembly.

According to a specific implementation mode of the embodiment of the disclosure, a sealing ring is arranged between the blocking cover and the spray head.

According to a specific implementation manner of the embodiment of the disclosure, the shape of the fire extinguishing agent spraying hole and the arrangement of the fire extinguishing agent spraying hole on the spray head enable the fire extinguishing and explosion suppression agent to be sprayed in a horizontal 360-degree range by taking the spray head as a center.

According to a specific implementation mode of the embodiment of the disclosure, 4 horizontal fan-shaped fire extinguishing agent spraying holes of 90 degrees are uniformly distributed on the circumferential surface of the spray head.

According to a specific implementation of the disclosed embodiment, the fire extinguishing and explosion suppression agent is perfluorohexanone.

Advantageous effects

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

the preset fire extinguishing and explosion suppression device for the fire inside the oil storage tank can spray the fire extinguishing and explosion suppression agent, particularly the perfluorohexanone, to the surface of the liquid oil product when the oil product in the oil storage tank is combusted, so that the liquid lower oil product and the upper oil product are separated from each other by the fire extinguishing and explosion suppression device, the temperature is reduced, the fire is rapidly extinguished, and the continuous combustion and explosion are avoided; when a fire disaster or a fire hazard occurs outside the oil storage tank, the fire extinguishing explosion suppressant, especially the perfluorohexanone, is sprayed to reduce the temperature in the oil storage tank, so that the fire extinguishing agent in the gas oil reaches the inerting explosion suppression concentration, and the oil is prevented from burning and exploding.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic structural diagram of a preset fire extinguishing and explosion suppression device for a fire inside an oil storage tank according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural view of a showerhead assembly provided by embodiments of the present disclosure;

FIG. 3 is a schematic structural diagram of a preset fire extinguishing and explosion suppression device for fire inside an oil storage tank according to an embodiment of the present disclosure;

reference numerals: 1-an oil storage tank; 2-a stop valve; 3-fire extinguishing and explosion suppression agent supply device; 4-a flexible pipe; 5-floating; 6-a spray head assembly; 61-a spray head; 62-a miniature atomizer; 63-blocking the cover; 64-a sealing ring; 65-pressure spring; 66-fire suppressant spray holes; 7-hose union nut.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

In the description of the present disclosure, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present disclosure and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and therefore should not be considered limiting to the disclosure. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of a quantity or relationship or order of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present disclosure, unless otherwise specified, "plurality" means two or more, and "several" means one or more. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

In the description of the present disclosure, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art through specific situations.

For the purpose of illustrating the objects, technical solutions and advantages of the embodiments of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure.

The conventional oil storage tank is usually provided with a pressure release valve, so that the oil tank explosion caused by overlarge steam pressure of volatile oil stored in the conventional oil storage tank is prevented, the risk of oil tank explosion is reduced to a certain extent, the oil tank explosion danger caused by internal and external combustion of the oil tank cannot be solved, and once the oil tank is in fire, great economic loss is caused. In order to solve the above problems partially or completely, the present disclosure provides a preset fire extinguishing and explosion suppression device for a fire inside an oil storage tank, which will be described in detail below.

Fig. 1 is a schematic structural view of a preset fire extinguishing and explosion suppression device for a fire inside an oil storage tank according to an embodiment of the present disclosure, fig. 3 is a schematic structural view of another preset fire extinguishing and explosion suppression device for a fire inside an oil storage tank according to an embodiment of the present disclosure, as shown in the figure, the preset fire extinguishing and explosion suppression device for a fire inside an oil storage tank includes a fire extinguishing and explosion suppression agent supply device 3, a hose 4, a float 5 and a nozzle assembly 6, a pipe connected from inside to outside is arranged at the bottom of the oil storage tank 1, the pipe located outside the oil storage tank 1 is connected with the fire extinguishing and explosion suppression agent supply device 3 through a stop valve 2, the pipe located inside the oil storage tank 1 passes through the float 5 through the hose to be connected with the nozzle assembly 6, and the float 5 is used for ensuring that a plurality of fire extinguishing agent injection holes of the nozzle assembly 6 are always located above oil in the oil storage tank 1, so that the fire extinguishing and explosion suppression agent is horizontally sprayed on the upper surface of the oil when the nozzle assembly 6 is sprayed. The stop valve 2 can control the on-off of the fire extinguishing explosion suppressant. Fig. 1 and 3 respectively provide two storage tank pipeline layouts, namely the layout is arranged at the lower part of the side wall of the storage tank, and the layout is arranged at the bottom surface of the storage tank. No matter which kind of deployment mode can both ensure no matter how high oil in the oil storage tank, shower nozzle subassembly 6 can both float in the fluid surface. Of course, without limitation, a pipe may be provided at an upper portion of a sidewall of the oil storage tank, and a part of the transfer hose may be pulled to a bottom of the oil storage tank by fitting or hanging a weight on the hose.

According to the embodiment of the disclosure, the spray head assembly which is communicated with the fire extinguishing explosion suppression agent supply device and always floats on the surface of the liquid oil is prefabricated in the oil storage tank, so that when the oil storage tank catches fire or has fire and explosion risks, the fire extinguishing explosion suppression agent is finally sprayed out from the spray head assembly through the delivery of the hose, quickly covers the upper surface of the liquid oil and is diffused into the gaseous fuel, separates the vapor of the liquid oil at the lower part and the vapor of the oil at the upper part, and quickly extinguishes the fire while reducing the temperature, thereby avoiding the continuous combustion and explosion of the oil tank; when a fire disaster or a fire hazard occurs outside the oil storage tank, the fire extinguishing explosion suppressant is sprayed to reduce the temperature in the oil storage tank, so that the fire extinguishing agent in the gas oil material reaches the inerting explosion suppression concentration, and the oil material is prevented from burning and exploding.

The fire extinguishing and explosion suppression agent supply device 3 can use any existing equipment with a fire extinguishing and explosion suppression agent storage function, and the stop valve 2 can be automatically or manually opened under certain conditions. As the fire extinguishing explosion suppression agent supply device is a pressure container and meets the relevant national and industrial standards of fire fighting equipment, the fire extinguishing explosion suppression agent supply device has no explosion hazard, such as a fire extinguishing agent bottle group. Further, the opening condition of the fire extinguishing and explosion suppression agent supply device 3 is not discussed in the present disclosure, which belongs to the fire detection category, and the present disclosure mainly solves the problem of how the fire extinguishing and explosion suppression agent can be sprayed into the inside of the oil storage tank and prevented from exploding. Taking an application scenario example: the fire detecting tube is connected to the fire extinguishing agent bottle group through the container valve and fixed near the position where the fire source is likely to occur to detect the fire source, when the fire is met, the fire detecting tube is softened and exploded at the position with the highest heating temperature, the container valve of the fire extinguishing agent bottle group is started by utilizing the pressure reduction in the fire detecting tube, and the fire extinguishing agent flows to a pipeline outside the oil storage tank 1 through the release pipe and then enters the oil storage tank 1 to be sprayed. In one example application scenario: an infrared flame detector is arranged on the outer side of the oil tank, when open fire, static electricity or lightning stroke and the like near the oil tank occur on the surface of the tank body to cause fire, the infrared flame detector detects radiation light generated by flame, the radiation light signal is converted into an electric signal and sent to a signal receiving device, a stop valve (such as a QRF32/4.2 valve with a manual or automatic opening function) is controlled to be opened by the signal receiving device, at the moment, a fire extinguishing explosion suppressant flows into the oil tank 1 through a pipeline, and the explosion of the oil tank is prevented.

As a specific example, a flexible pipe movable nut joint 7 is pressed and riveted at the two ends of the flexible pipe 4 and is used for being connected with the pipeline of the oil storage tank 1 or the spray head assembly 6 in a sealing mode.

The hose union nut is a standard connector part, by which the hose 4 can be easily connected to other mechanical parts, such as the pipeline and the nozzle assembly 6 in the oil storage tank 1, respectively.

As a specific example, the hose 4 is provided made of a material having light weight, pressure resistance, high temperature resistance and flame retardant properties, such as asbestos. Preferably, the hose is made of glass fiber.

The hose is made of light materials, so that the buoy can overcome the gravity to drive the hose to support the nozzle assembly, and the fire extinguishing agent spraying holes of the hose are kept on the liquid oil. The hose material has the characteristics of pressure resistance, high temperature resistance and flame retardance, so that the hose material is suitable for being soaked in oil for a long time without denaturation. In addition to the above characteristics, glass fiber is a preferable material for the fire-extinguishing and explosion-suppressing agent delivery hose in the oil storage tank due to its excellent insulation, corrosion resistance and mechanical strength.

As a specific example, the float 5 is made of a material having light weight, high temperature resistance, corrosion resistance, and low thermal conductivity, such as a high temperature resistant carbon fiber composite material. Preferably, the material of the float 5 is foamed aluminum.

The float is used for providing buoyancy for the spray head assembly 6 in the oil storage tank 1 in the embodiment disclosed, is in long-term contact with oil, and is suitable for being made of materials with light weight, high temperature resistance, corrosion resistance and low heat conductivity. Preferably, the buoy is wholly made of foamed aluminum, so that the buoy is light in weight, has the characteristics of high temperature resistance, flame retardance, corrosion resistance and low heat conductivity, and ensures that the spray head assembly 6 can always float on the surface of the oil material and cannot sink, and cannot deteriorate after being soaked in the oil material for a long time.

As a specific example, the fire extinguishing and explosion suppression agent supply device 3 is a fire extinguishing and explosion suppression agent bottle group or a mobile fire extinguishing and explosion suppression agent pump group vehicle.

The fire-extinguishing explosion-suppression agent bottle group or the movable fire-extinguishing explosion-suppression agent pump group vehicle is used as a fire-extinguishing explosion-suppression agent supply device, so that sufficient supply of fire-extinguishing explosion-suppression agents can be ensured when a dangerous case occurs, and oil re-combustion or explosion is prevented.

As a specific example, fig. 2 provides a nozzle assembly, as shown in fig. 2, the nozzle assembly includes a nozzle 61 having fire extinguishing agent spraying holes 66, an end cap 62, a cap 63, and a compression spring 65, the cap 63 is disposed in the nozzle 61 and can freely move along the axial direction above the inner boss, the end portion is provided with the end cap (62), the compression spring (65) is sandwiched between the cap (63) and the end cap (62), the cap (63) is fixed by the pre-tightening force of the compression spring (65), and the nozzle assembly (6) is opened or closed by the position of the cap (63) relative to the fire extinguishing agent spraying holes (66).

As shown in fig. 2, in the non-operation state of the preset fire extinguishing and explosion suppression device, the blocking cover 63 is located below the fire extinguishing agent spraying hole 66 under the elastic force of the compression spring 65, and blocks the passage from the spray head 61 to the hose 4, so that the oil outside the spray head 61 and the fire extinguishing and explosion suppression agent inside do not enter into each other. When fire occurs, the stop valve 2 is opened, the fire extinguishing and explosion suppression agent gushes out at a high speed from the fire extinguishing and explosion suppression agent supply device 3 and reaches the blanking cover 63 through the hose, the fire extinguishing and explosion suppression agent flowing at a high speed overcomes the elasticity of the pressure spring 65 to push the blanking cover 63 to the position above the fire extinguishing agent spraying hole 66, the fire extinguishing and explosion suppression agent outflow channel is opened, and the fire extinguishing and explosion suppression agent flows out of the fire extinguishing agent spraying hole 66 to the surface of liquid oil.

As a specific example, in order to enhance the sealing and blocking effect of the blocking cover 63 and prevent liquid leakage during blocking, a sealing ring 64 is further provided between the blocking cover 63 and the spray head 61. Specifically, the sealing ring 64 may be fitted in an o-shaped groove formed in the outer circumference of the cap 63. Further, the seal ring 64 may be made of a material with good elasticity, corrosion resistance and wear resistance, such as butyronitrile and ethylene propylene diene monomer.

As a specific example, the connection between the stop valve 2 and the pipe provided on the oil storage tank 1 is realized by a screw thread, and is sealed by a thread compound.

As a specific example, the shape of the fire suppressant spray holes 66 and their placement on the spray head 61 are such that the fire suppressant can be sprayed over a horizontal 360 range centered on the spray head 61.

The embodiment of the disclosure is provided with the spray head 61 which can spray fire extinguishing explosion suppression agent in a horizontal 360-degree full range to protect oil in the oil storage tank in all directions, so that a better fire extinguishing explosion suppression effect is realized, and the oil can be extinguished in the first time no matter which direction the oil burns, thereby preventing the fire from spreading in the oil storage tank.

As a specific example, further, 4 horizontal fan-shaped fire extinguishing agent spraying holes 66 not smaller than 90 ° are uniformly distributed on the circumferential surface of the spraying head 61.

The horizontal fan-shaped fire extinguishing agent jet hole is arranged, so that the fire extinguishing explosion suppressant can be horizontally jetted by a fan-shaped surface, the fire extinguishing explosion suppressant can quickly absorb heat for gasification, the oil storage tank is cooled, a horizontal barrier is formed on the surface of the liquid oil, and mixed gas of the liquid oil, oil steam and air on the liquid oil is separated, so that fire extinguishing is realized, and oil reburning and explosion are prevented.

4 fire extinguishing agent spraying holes 66 of 90 degrees are uniformly distributed on the spray head 61, and can spray from four directions of up, down, left and right simultaneously, so that the liquid oil surface is quickly and comprehensively covered, and the processing technology is good, and the effect is optimal. Of course, it is not limited thereto, and other schemes such as uniformly arranging 3 fire extinguishing agent spraying holes 66 of 120 °, arranging 6 fire extinguishing agent spraying holes 66 of 60 °, etc. on the spray head 61 may be adopted.

As a specific example, further, the opening gap of the fire extinguishing agent spraying holes 66 is in the range of 1.5 to 3.0 mm.

This is disclosed through setting up suitable trompil clearance, 1.5-3.0 millimeters promptly, gets arbitrary hole height numerical value in this scope, can realize better fire extinguishing explosion suppression agent injection effect, ensures that spun fire extinguishing explosion suppression agent can reach the oil storage tank inner wall to ensure that the short-term interior abundant fire extinguishing explosion suppression agent covers liquid oil surface, in time, the huge heat gasification of rapid absorption oil burning, to the oil storage tank rapid cooling, and isolated fuel and air, realize high-efficient fire extinguishing.

Based on the above embodiment, as a specific example, the fire extinguishing explosion suppression agent is a clean fire extinguishing agent such as inert gas, heptafluoropropane, CO ₂ And the like. Preferably, the fire-extinguishing explosion suppression agent adopts perfluorohexanone.

Perfluorohexanone is a liquid at ambient temperature, since it evaporates only 1/25 th as much as water, and has a vapor pressure 25 times that of water, these properties make it easy to vaporize and exist in a gaseous state. Under the scientific design concentration, the mixture of the gaseous perfluorohexanone and the air can absorb sufficient heat to destroy the fire tetrahedral balance and isolate oxygen at the same time, and compared with inert gas, heptafluoropropane and CO, the double fire extinguishing mechanism of 'gasification heat absorption cooling and oxygen isolation' is characterized in that ₂ And the traditional fire extinguishing agent has higher fire extinguishing efficiency and explosion suppression efficiency. In the aspect of environmental protection, the environment-friendly fire extinguishing agent is a genuine green environment-friendly fire extinguishing agent, has no influence on environments such as an ozone layer and the like, and has the characteristics of insulation, no residue in use and the like. Therefore, the perfluorohexanone is an ideal new-generation clean gas fire extinguishing agent, is ideal for preventing oil tank fire and explosion, does not need to be cleaned for the second time due to no residue after use, and saves timeSaves labor.

The during operation, with this open explosion suppression device that puts out a fire install in the oil storage tank, when the oil catches fire or has conflagration and explosion risk in the oil storage tank, automatic or manual start oil storage tank outside explosion suppression agent feeding mechanism that puts out a fire, the explosion suppression agent is through the stop valve, the hose is carried like perfluor hexanone, 360 sprays perfluor hexanone to liquid oil surface in the oil storage tank through the fan-shaped jet orifice of shower nozzle subassembly, cut off liquid and gaseous fuel in the twinkling of an eye, when perfluor hexanone vaporization heat absorption cooling is put out a fire, make the perfluor hexanone fire extinguishing agent concentration reach the twice of ordinary concentration of putting out a fire and more than in the twinkling of an eye in the oil storage tank mist, possess the explosion suppression function of putting out a fire, and the high-pressure gas mixture that is heated can be followed the discharge of oil storage tank relief valve, the oil storage tank can not be because of high-pressure explosion.

The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides a put out a fire and suppress explosion device to preset perfluorohexanone of inside conflagration of oil storage tank, its characterized in that, is including putting out a fire and suppressing explosion agent feeding mechanism (3), hose (4), cursory (5) and shower nozzle subassembly (6), the pipeline of UNICOM outside establishing in oil storage tank (1) bottom is located oil storage tank (1) is outside the pipeline passes through stop valve (2) and is connected with putting out a fire and suppressing explosion agent feeding mechanism (3), is located inside oil storage tank (1) the pipeline passes cursory (5) through the hose and is connected with shower nozzle subassembly (6), and cursory (5) are used for guaranteeing that a plurality of extinguishing agent jet orifice of shower nozzle subassembly (6) is in all the time fluid top in oil storage tank (1) will put out a fire and suppress explosion agent level when making shower nozzle subassembly (6) spout and jet the fluid upper surface.

2. An explosion suppression device as set forth in claim 1 wherein said hose is made of fiberglass.

3. An explosion suppression device according to claim 1, wherein the float is made of foamed aluminum.

4. An explosion suppression device according to claim 1, wherein the fire extinguishing and explosion suppression agent supply device is a fire extinguishing and explosion suppression agent bottle group or a mobile fire extinguishing and explosion suppression agent pump group vehicle.

5. An explosion suppression device according to claim 1, characterized in that the nozzle assembly (6) comprises a nozzle (61) provided with the fire extinguishing agent injection hole (66), an end cover (62), a blocking cover (63) and a pressure spring (65), the blocking cover (63) capable of freely moving along the axial direction above an inner boss of the nozzle (61) is arranged in the nozzle (61), the end part is provided with the end cover (62), the pressure spring (65) is clamped between the blocking cover (63) and the end cover (62), the blocking cover (63) is fixed through the pretightening force of the pressure spring (65), and the nozzle assembly (6) is opened or closed through the position of the blocking cover (63) relative to the fire extinguishing agent injection hole.

6. An explosion suppression device according to claim 5, characterized in that a sealing ring (64) is provided between the closure cap (63) and the spray head (61).

7. An explosion suppression device as set forth in claim 1, characterized in that the shape of the fire extinguishing agent injection holes (66) and their arrangement on the spray head (61) are such that the fire extinguishing agent can be sprayed in a horizontal 360 ° range centered on the spray head (61).

8. An explosion suppression device according to claim 7, wherein 4 horizontal fan-shaped fire extinguishing agent spraying holes (66) not lower than 90 degrees are uniformly distributed on the circumferential surface of the spraying head (61).

9. An explosion suppression device according to claim 7, wherein the opening gap of said fire extinguishing agent spraying holes (66) is in the range of 0.7 to 1.2 mm.

10. An explosion suppression device according to any one of claims 1 to 9, wherein the fire extinguishing and explosion suppression agent is perfluorohexanone.

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