CN207388852U - A kind of high temperature resistant explosion-proof automotive oil tank - Google Patents

Abstract

The utility model discloses a kind of high temperature resistant explosion-proof automotive oil tanks, are related to field of vehicle equipment, including hollow babinet, a cavity are equipped in the babinet, the casing top is equipped with pouring orifice, and the pouring orifice is equipped with case lid, and the babinet includes from inside to outside：Polyurethane foam, rubber layer, rock wool layer and steel plate layer；The steel plate layer is divided into the hollow layer and solid layer of internal alternative expression arrangement；The case lid is equipped with electrostatic prevention film.The utility model carries out explosion-proof from the fuel tank explosion origin cause of formation, and simple in structure, explosion-proof effect is good；It herein in connection with hot pipe technique, radiates to the fuel tank, enhances the explosion-proof effect of the fuel tank；The corner in the fuel tank is also designed as arc angle, reduces structure dead oil；Also by adding filter device, fuel qualities are improved；It also adds to detect the detection components of gas pressure and amount of fuel in the fuel tank automatically, automatically controls the steam valve to reduce gas pressure in the fuel tank and the in real time amount of fuel of monitoring fuel tank.

Description

A kind of high temperature resistant explosion-proof automotive oil tank

Technical field

The utility model is related to field of vehicle equipment, are a kind of high temperature resistant explosion-proof automotive oil tanks specifically.

Background technology

In the process of moving, inevitably accident occurs for automobile.When getting into an accident, if automotive oil tank such as is hit at the injuries, The secondary hazards such as explosion easily occur, therefore, anti-explosion automobile oil tank comes into being.

It in existing vehicle explosion-proof fuel tank, is generally based in original automotive oil tank, adds in anti-knock agent or explosion-proof bead, Or the structures such as thermal insulation layer are added in fuel tank body, but it does not completely cut off fuel tank inherently and occurs on fire from explosion, and explosion-proof effect is not It is fine.

Utility model content

The purpose of this utility model is to provide a kind of high temperature resistant explosion-proof automotive oil tanks, and explosion on fire occurs from automotive oil tank The origin cause of formation substantially to automotive oil tank carry out it is explosion-proof, explosion-proof effect is good.Plate also is passed to the gas in the fuel tank using heat simultaneously Heat, which is endlessly transferred to outside fuel tank, to radiate, and enhances the explosion-proof effect of the fuel tank；Also by the angle in the fuel tank Fall and be designed as arc angle, reduce structure dead oil；Filter device also is added in the pouring orifice, improves fuel qualities；Also to described Fuel tank adds steam valve, reduces the oily loading pressure in time, enhances the explosion-proof effect of the fuel tank；Also it is the fuel tank Add detection components, for detecting the gas pressure and amount of fuel in the fuel tank automatically, automatically control the steam valve with It reduces the gas pressure in the fuel tank and monitors the amount of fuel in the fuel tank in real time.

The utility model is achieved through the following technical solutions：

A kind of high temperature resistant explosion-proof automotive oil tank including hollow babinet, is equipped with a cavity, the babinet top in the babinet Portion is equipped with pouring orifice, and the pouring orifice is equipped with case lid,

The babinet includes from inside to outside：Polyurethane foam, rubber layer, rock wool layer and steel plate layer；The steel plate layer It is divided into the hollow layer and solid layer of internal alternative expression arrangement；

The case lid is equipped with electrostatic prevention film.

A kind of high temperature resistant explosion-proof automotive oil tank provided by the utility model, hollow babinet, interior be equipped with of the babinet are used for The cavity of oil plant is held, in the casing top, equipped with a pouring orifice, for increasing oil plant, the pouring orifice is equipped with case lid.

It is known that the explosion cause of fuel tank includes：Occur spark in fuel tank and fuel tank is collided strike.But oil Case is collided the essence exploded of strike also in that pyrogenic process occurs in fuel tank internal, and fuel combustion is caused to cause gas in fuel tank It drastically expands to explode in the body short time.Based on this, in the utility model, the babinet wraps successively from inside to outside It includes：Polyurethane foam, rock wool layer, rubber layer and steel plate layer.Traditional fuel tank internal, directly by the use of steel plate as the dress of oil plant Carrier layer although loaded layer of the steel plate as oil plant, compared to other materials, has higher non-deformability, steel plate conduct It is pyrophoric that metal material and being easiest to makes oil plant agitate production in fuel tank；Meanwhile when fuel tank is subject to external impact, gold Belong to when material is contacted directly as the loaded layer of oil plant with oil plant and be most also easy to produce what spark exploded.

Therefore, traditional metal material is changed to by bearing bed of the polyurethane foamed material as oil plant by the utility model. Polyurethane foamed material is a kind of novel synthetic material with heat preservation and water-proof function, and thermal conductivity factor is extremely low, is only 0.022 ~0.033W/（m*Κ）, it is that thermal conductivity factor is minimum in current all thermal insulation materials.Polyurethane foamed material heat-insulating property is excellent More, its heat-proof quality is also best in other words；Meanwhile polyurethane foam is as a kind of organic synthesis material, oil plant by Surge, will not also generate spark in fuel tank made of polyurethane foam.

Meanwhile in the utility model, the only fuel tank made of polyurethane foamed material, since its hardness is far below gold Belong to material, easy stress deformation, therefore, the fuel tank are intrinsic frame body of the steel plate layer as the fuel tank in outermost layer, are described Fuel tank keeps an intrinsic shape, avoids causing serious deformation due to the fuel tank stress so that hold in the fuel tank The cavity volume of oil plant reduces.

Steel plate layer is after stress, it may occur that irreversible deformation, since the hardness of polyurethane foamed material is relatively low, and the oil After the stress deformation of box outer wall certain point, power that the corresponding position of inner wall of oil tank can incur loss, due to this part power apply when Between it is extremely short, according to principle of conservation of momentum, the speed of the fuel molecule of residing point can improve moment, and the kinetic energy of fuel molecule increases Add；Meanwhile the fuel tank stress deformation can cause the volume in fuel tank to reduce, the gas in pressure oil tank, it is preferable according to gas State equation, air pressure rise in the fuel tank, temperature rise, and increase the possibility that the fuel tank explodes.Based on this, at this In utility model, rubber layer is equipped between the polyurethane foam and the steel plate layer, the effect of the rubber layer is to work as During the fuel tank stress, when the fuel tank outer wall certain point or some region stress cause the fuel tank to deform, rubber layer energy maximum journey Degree to the power that fuel tank outer wall is subject into row buffering, reduce the power being subject to that the inner wall of oil tank is put accordingly, reduce the oil The mechanical energy of oil plant in case reduces the possibility that the fuel tank explodes.

In the utility model, rock wool layer is additionally provided between the rubber layer and the steel plate layer, it is during the broiling summer, empty Gas extreme temperatures, up to 50 degrees Celsius, the fuel tank is placed in air, the temperature of oil plant in fuel tank is easily caused to raise, rock wool It is a kind of outstanding heat-insulating heat-preserving material, the heat in air can be effectively hindered to enter in the fuel tank, reduce the oil The possibility that case explodes.

In the utility model, the steel plate layer of the fuel tank, the hollow layer arranged by alternative expression is formed with solid layer.It is described Solid layer provides a stationary frame structure for the fuel tank, keeps the planform of the fuel tank；The hollow layer is further Decrease heat be externally entering the fuel tank internal, reduce the possibility that the fuel tank explodes.

Since fuel oil has the characteristic of easy static electricity gathered lotus, although in the utility model, the fuel tank internal is by gold Belong to material and be changed to bearing bed of the polyurethane foamed material as oil plant, but be still steel plate material metal material in pouring orifice.When big The static charge buildup of amount is in the pouring orifice, it is most likely that triggers fire.Based on this, the case lid is equipped with electrostatic prevention film, prevents Only the case lid generates electrostatic with the steel plate friction at the pouring orifice.

In order to preferably realize the utility model, radiating subassembly is equipped in the cavity, the radiating subassembly includes：At least One piece of heat through box top passes plate, and it is evaporation ends that the heat, which passes plate in the in vivo one end of the case, and the heat passes plate in case External one end is condensation end, and the heat passes plate and the liquid-sucking core that capillary-porous material is formed, institute are equipped with two opposite sides Evaporation ends are stated filled with low boiling point, volatile liquid.

Preferably, each corner is arc angle in the cavity.

Preferably, the liquid injection port is equipped with filter device, and the filter device includes：It slips through the net equipped at least one layer filtering.

Preferably, the casing top is connected with steam valve by running through the tracheae of babinet.

Preferably, detection components are equipped in the babinet, the detection components include：

Pressure sensor in the cavity；

The digital analog converter being electrically connected with the pressure sensor；

It is electrically connected with the digital analog converter, and the microprocessor being electrically connected with the steam valve；

The display screen being electrically connected with the microprocessor.

Preferably, the detection components further include：In the cavity, and be electrically connected with the digital analog converter Liquid level sensor.

The utility model compared with prior art, has the following advantages and advantageous effect：

（1）The utility model replaces traditional metal material as the bearing bed of fuel oil using polyurethane foamed material, from Carry out explosion-proof in the fuel tank explosion origin cause of formation, simple in structure, explosion-proof effect is good；

（2）The utility model passes plate by the gas heat in the fuel tank continually herein in connection with hot pipe technique, using heat Be transferred to outside the fuel tank and radiate, enhance the explosion-proof effect of the fuel tank；

（3）Corner in the fuel tank is also designed as arc angle by the utility model, reduces structure dead oil, protection automobile hair Motivation；

（4）The utility model also adds filter device in pouring orifice, improves fuel qualities；

（5）The utility model also adds steam valve to the fuel tank, reduces the gas pressure in the fuel tank in time, enhancing The explosion-proof effect of the fuel tank；

（6）The utility model also adds to detect the detection group of the gas pressure and amount of fuel in the fuel tank automatically Part, the amount of fuel for automatically controlling the steam valve to reduce the gas pressure in the fuel tank and monitor fuel tank in real time.

Description of the drawings

Fig. 1 is the utility model entirety cross-sectional view；

Fig. 2 is the utility model integral outer structure diagram；

Fig. 3 passes plate cross-sectional view for the utility model heat；

Wherein：11- pouring orifices；111- case lids；12- polyurethane foams；13- rubber layers；14- rock wool layers；15- steel plates Layer；161- filterings are slipped through the net；17- steam valves；21- heat passes plate；211- evaporation ends；212- condensation ends；213- liquid-sucking cores；31- pressure Sensor；34- liquid level sensors.

Specific embodiment

The utility model is described in further detail with reference to the preferred embodiment of the utility model, but this practicality New embodiment is without being limited thereto.

Embodiment 1：

With reference to shown in attached drawing 1, attached drawing 2, a kind of high temperature resistant explosion-proof automotive oil tank provided in this embodiment is hollow including one Square box, the box house are hollow structure, and a cavity is equipped in babinet, and the cavity is used to hold oil plant.Described Casing top, equipped with a pouring orifice 11, for increasing oil plant for the fuel tank, the pouring orifice 11 is equipped with case lid 111, described Fuel tank fill oil plant rear enclosed described in fuel tank prevent oil plant spill and leakage.

What deserves to be explained is the present embodiment is shown for convenience, the babinet uses square structure, as art technology Personnel, it should be understood that the babinet may also be fabricated which as needed it is hollow cylindric in addition with the integrated knots such as be adapted to of car body Structure.

In fuel tank explosion event now, the metal material friction either oil of oil plant and inner wall of oil tank is often as Case is collided strike, generates spark, causes fuel combustion so that drastically expanding to occur in the gas short time in fuel tank quick-fried It is fried.Based on this, in the present embodiment, the fuel tank is improved from babinet material, and the babinet includes successively from inside to outside： Polyurethane foam 12, rock wool layer 14, rubber layer 13 and steel plate layer 15.In the present embodiment, the babinet uses polyurethane Bearing bed of the foamed material as oil plant.Polyurethane foamed material is a kind of new synthesis material with heat preservation and water-proof function Material, thermal conductivity factor is extremely low, is only 0.022~0.033W/（m*Κ）, it is that thermal conductivity factor is minimum in current all thermal insulation materials 's.Polyurethane foamed material heat-insulating property is superior, its heat-proof quality is also best in other words；Meanwhile polyurethane foam is made For a kind of organic synthesis material, oil plant is agitated made of polyurethane foam in fuel tank, will not also generate spark.

Although polyurethane foamed material compared with metal material, avoid oil plant agitated in the babinet generate spark occur it is quick-fried It is fried, but polyurethane foamed material, compared to metal material, hardness is lower, easy stress deformation.Based on this, to keep the fuel tank Intrinsic shape, the fuel tank outermost layer are steel plate layer 15, and intrinsic frame body of the steel plate layer 15 as the fuel tank is the oil Case keeps an intrinsic shape, avoids causing serious deformation due to the fuel tank stress so that hold oil plant in the fuel tank Cavity volume reduce, the gas in cavity is compressed, and explosion danger occurs for the air pressure increase in cavity.

Although the fuel tank is equipped with solid frame of the steel plate layer 15 as the fuel tank in outermost layer, provided for the fuel tank One intrinsic shape, but steel plate layer 15 is after stress, it may occur that irreversible deformation, and frequently can lead to steel plate layer 15 and shape occurs The power of change, the generally instantaneous larger power such as foreign matter shock.Based on this, in the polyurethane foam 12 and the steel plate layer 15 Between be equipped with rubber layer 13, the effect of the rubber layer 13 is when the fuel tank stress, to the greatest extent to the fuel tank The power of outer wall stress reduces the power that inner wall of oil tank region corresponding with rum point is subject to, reduces the fuel tank into row buffering The interior possibility broken out.

In the present embodiment, it is additionally provided with rock wool layer 14 between the rubber layer 13 and the steel plate layer 15.Rock wool is a kind of Outstanding heat-insulating heat-preserving material can effectively hinder the heat in air to enter in the fuel tank, enhance the babinet and weaken The ability that oil plant is exchanged with fuel tank outgoing heat in the fuel tank reduces the possibility that the fuel tank explodes.

In the present embodiment, the structure of the steel plate layer 15 of the fuel tank by alternately when the hollow layer that arranges and solid layer group Into the solid layer provides stationary frame structure for the fuel tank, keeps the planform of the fuel tank, and the hollow layer is used for The further heat that weakens is externally entering the fuel tank internal, by the possibility exploded of the fuel tank.

Although in the present embodiment, metal material will be changed to polyurethane foamed material as oil plant by the fuel tank internal Bearing bed, while multilayer is set to be thermally shielded and buffer the power of collision to avoid generation spark in the fuel tank that fuel tank is caused to be sent out Raw explosion, but since fuel oil has the characteristic of easy static electricity gathered lotus, 11 outermost layer of pouring orifice of the fuel tank is still steel plate material Metal material.Therefore, when substantial amounts of static charge buildup is in the pouring orifice 11, it is most likely that trigger fire.Based on this, In the present embodiment, the case lid 111 is equipped with electrostatic prevention film, prevents the case lid 111 and the steel plate friction at the pouring orifice 11 Electrostatic is generated, triggers fire；Meanwhile the organic matters material such as rubber can be used to be made for the case lid 111, and fundamentally avoid and institute It states fuel tank external wall friction and generates electrostatic, and rubber can recover the material of reset condition as a kind of stress and deformation, it can be preferably The leakproofness of the fuel tank is kept, prevents oil plant overflows from spreading out the fuel tank.

Embodiment 2：

The present embodiment is on the basis of embodiment 1, is further limited, with reference to shown in attached drawing 1, attached drawing 2, attached drawing 3, due to When filling with oil plant in the fuel tank, after screwing case lid 111, the fuel tank internal is the environment of a sealing, when the fuel tank To automobile when the mechanical device that needs quickly move, the oil plant in fuel tank inevitably can be moved quickly, mutually be touched between oil plant It hits, and is mutually collided between the inner wall of oil tank, the temperature in the fuel tank is caused to raise, explosion danger occurs.It is based on This, in the present embodiment, radiating subassembly is equipped in the cavity, for will be outside the heat transfer of the cavity to the fuel tank； The radiating subassembly includes：At least a heat through the box top passes plate 21, and the heat passes plate 21 and is based on heat pipe principle Manufacture, the heat are passed plate 21 and are manufactured using the good conductor of heat, such as：Copper.The heat passes the one end of plate 21 in the fuel tank Evaporation ends 211, the evaporation ends 211 are filled with low boiling point, volatile liquid, and in the present embodiment, the liquid is dichloromethane Alkane, the boiling point of dichloromethane is 40.7 DEG C, volatile；The heat passes the one end outside the fuel tank of plate 21 as condensation end 212, institute It is hollow cavity to state heat and pass 21 inside of plate, and the cavity is negative pressure state, and the heat passes plate 21 close to two to oppose Long side surface is equipped with liquid-sucking core 213 made of capillary-porous material.It is described when the gas temperature rise in the fuel tank Dichloromethane in evaporation ends 211, which is heated, evaporates into the condensation end 212, since the temperature of condensation end 212 is less than evaporation ends 211 Temperature, dichloromethane after vaporization adsorbs in 212 liquidation exothermic reaction of condensation end, the liquid-sucking core 213 formed through capillary-porous material, Evaporation ends 211 are back to by the capillarity of porous material, so Xun Huan is more than, and heat is by endlessly from the fuel tank Inside is transferred to outside the fuel tank, realizes the cooling in the fuel tank.

Embodiment 3：

The present embodiment is on the basis of embodiment 2, is further limited, with reference to shown in attached drawing 1, in the present embodiment, by In using the fuel tank of square structure, as displaying, the fuel tank internal is there are many square corners, due to these square corners In the presence of often there is structure dead oil, the fuel oil full utilization burning being unfavorable in the fuel tank is abundant；Simultaneously as structure The presence of dead oil, it is unfavorable to automobile engine if structure dead oil is mixed with the fuel oil subsequently added after long-time.Based on this, In the present embodiment, each corner is arc angle in the cavity, avoids generating structure dead oil from structure, protects car engine Machine.

Embodiment 4：

The present embodiment be on the basis of embodiment 3, further limit, with reference to shown in attached drawing 1, due to fuel oil refining plus The reason in terms of work, contains certain impurity, colloid etc. in the fuel oil of finished product.If these sundries in fuel oil are not carried out clear Reason, after these impurity enter the tiny duct in carburetor, plugs these ducts, makes carburetor work bad, engine Dynamic property declines.Based on this, in the present embodiment, the liquid injection port is equipped with filter device, for injecting oil to the fuel tank During material, fuel oil is filtered, impurity, colloid in removing then etc..

The filter device includes：Two layers of filtering slips through the net 161, and described this two layers filtering is slipped through the net the placement of 161 eclipsed forms.I.e. The smaller filtering of internal diameter, which is slipped through the net, 161 to be placed in the larger filtering of internal diameter and slips through the net in 161, meanwhile, the larger filtering of internal diameter slips through the net 161 Grain size is less than the larger filtering of internal diameter and slips through the net 161, for carrying out multilevel hierarchy filtering to fuel oil, increase then purity.

Meanwhile it is described filtering slip through the net 161 with the liquid injection port be socketed.When injecting fuel oil for the fuel tank, by the mistake Filter, which is slipped through the net 161 sets, is connected to the pouring orifice 11；After oiling, 161 taking-ups of slipping through the net are filtered by described, while use case lid 111 Pouring orifice 11 is sealed.

Embodiment 5：

The present embodiment is on the basis of embodiment 4, is further limited, in the present embodiment, when the fuel tank is hit When hitting, the volume of the cavity is compressed, according to gas perfect condition equation, due to being the ring of a sealing in the fuel tank Border, the volume of the cavity are compressed, the gas pressure increase in the cavity, and the activity enhancing of gas molecule easily occurs quick-fried Fried danger.Based on this, the casing top is connected with steam valve 17 by running through the tracheae of babinet, for working as in the fuel tank When gas pressure increases, timely discharge part gas avoids the fuel tank that explosion danger occurs to reduce the air pressure in the fuel tank Danger.

In the present embodiment, the steam valve 17 be unidirectional steam valve, i.e., gas can only by being discharged in the fuel tank, without It can be by being entered outside the fuel tank in the fuel tank.

Embodiment 6：

The present embodiment is on the basis of embodiment 1-5, is further limited, with reference to shown in attached drawing 1, in the present embodiment, Detection components are equipped in the babinet, the detection components include：Pressure sensor 31 in the cavity, the pressure Sensor 31 is gas pressure sensor, model：PX409-32BV；The microprocessor being electrically connected with the pressure sensor Device, the microprocessor model be MSP430F149IPM microcontrollers, MSP430F149IPM singlechip low-voltages, super low-power consumption, Very high precision can be obtained with the digital analog converters of 12, is eliminated in the present system using special digital analog converter, The pressure sensor 31 is directly electrically connected to convenient and simple, simplified circuit with microprocessor；It is electrical with the microprocessor The display screen of connection.In the present embodiment, the microprocessor may be contained with the display screen in car steering room, away from institute State fuel tank.

In the present embodiment, the atmospheric pressure state described in 31 examinations of pressure sensor in fuel tank, and will collect Analog signal transmission into the microprocessor, the microprocessor will receive comprising the gas pressure in the fuel tank Analog signal user is shown to by the display screen after processing.Meanwhile the microprocessor and the steam valve 17 are electric Property connection, the steam valve 17 be electrical steam valve；Air pressure threshold values of the 0.101MPa as the fuel tank is set, when the air pressure transmission When sensor detects that the gas pressure in the cavity of the fuel tank is less than air pressure threshold values, the switch of the steam valve 17 is closed；When When gas pressure in the cavity for the fuel tank that the baroceptor detects is greater than or equal to air pressure threshold values, described in opening The switch of steam valve 17 discharges the gas in the fuel tank, reduces the gas pressure in the fuel tank, ensures making for the fuel tank With safety.

Embodiment 7：

The present embodiment is on the basis of embodiment 6, is further limited, in the present embodiment, the detection components are also wrapped It includes：In the cavity, and the liquid level sensor 34 being electrically connected with the microprocessor, the type of the liquid level sensor 34 Number for HM21 fluid level transmitters, the liquid level sensor 34 detects the fuel level signal in the fuel tank in real time, and will adopt The liquid level signal collected is transferred to the microprocessor, after the microprocessor processes, is shown through the display screen, uses Family can be described in real-time awareness in fuel tank amount of fuel information.

The above, is only the preferred embodiment of the utility model, and limit in any form is not done to the utility model System, every any simple modification made according to the technical essence of the utility model to above example, equivalent variations, each falls within Within the scope of protection of the utility model.

Claims (7)

1. a kind of high temperature resistant explosion-proof automotive oil tank including hollow babinet, is equipped with a cavity, the casing top in the babinet Equipped with pouring orifice（11）, the pouring orifice（11）Equipped with case lid（111）, which is characterized in that

The babinet includes from inside to outside：Polyurethane foam（12）, rubber layer（13）, rock wool layer（14）And steel plate layer （15）；The steel plate layer（15）Inside is divided into the hollow layer and solid layer of alternative expression arrangement；

The case lid（111）Equipped with electrostatic prevention film.

2. a kind of high temperature resistant explosion-proof automotive oil tank according to claim 1, which is characterized in that heat dissipation is equipped in the cavity Component, the radiating subassembly include：At least one piece heat through box top passes plate（21）, the heat biography plate（21）In the case In vivo one end is evaporation ends（211）, the heat biography plate（21）One end outside the enclosure is condensation end（212）, the heat biography plate （21）The liquid-sucking core that capillary-porous material is formed is equipped with two opposite sides（213）, the evaporation ends（211）Filled with low boiling Point, volatile liquid.

A kind of 3. high temperature resistant explosion-proof automotive oil tank according to claim 2, which is characterized in that each corner in the cavity For arc angle.

A kind of 4. high temperature resistant explosion-proof automotive oil tank according to claim 3, which is characterized in that the pouring orifice（11）It is equipped with Filter device, the filter device include：It slips through the net equipped at least one layer filtering（161）.

5. a kind of high temperature resistant explosion-proof automotive oil tank according to claim 4, which is characterized in that the casing top is by passing through The tracheae for wearing babinet is connected with steam valve（17）.

6. a kind of high temperature resistant explosion-proof automotive oil tank according to claim 5, which is characterized in that detection is equipped in the babinet Component, the detection components include：

Pressure sensor in the cavity（31）；

With the pressure sensor（31）The digital analog converter of electric connection；

With the digital analog converter be electrically connected, and with the steam valve（17）The microprocessor of electric connection；

The display screen being electrically connected with the microprocessor.

7. a kind of high temperature resistant explosion-proof automotive oil tank according to claim 6, which is characterized in that the detection components are also wrapped It includes：In the cavity, and the liquid level sensor being electrically connected with the digital analog converter（34）.