CN105299448A - Liquefied natural gas gasifier fixedly connected with inner and outer heat exchange fins - Google Patents
Liquefied natural gas gasifier fixedly connected with inner and outer heat exchange fins Download PDFInfo
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- CN105299448A CN105299448A CN201510379605.0A CN201510379605A CN105299448A CN 105299448 A CN105299448 A CN 105299448A CN 201510379605 A CN201510379605 A CN 201510379605A CN 105299448 A CN105299448 A CN 105299448A
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Abstract
The invention relates to a gasifier, particularly to a liquefied natural gas gasifier fixedly connected with inner and outer heat exchange fins. The gasifier comprises a gasifying pipe and a delivery pump, wherein the delivery pump is connected with the inlet end of the gasifying pipe; the gasifying pipe comprises a plurality of bent sections and at least two gasifying sections which are in a linear structure; the gasifying sections and the bent sections are arranged at intervals, so that a back-turning structure is formed; the delivery pump comprises a pump casing, a pump shaft and a speed adjusting motor; the pump shaft is connected with the pump casing rotationally; the speed adjusting motor drives the pump shaft to rotate; a plurality of inner heat exchange fins are arranged inside the gasifying sections and connected with the gasifying sections integrally; and a plurality of outer heat exchange fins are arranged outside the gasifying sections and connected with the gasifying sections integrally. The liquefied natural gas gasifier fixedly connected with inner and outer heat exchange fins is provided; the gasifying effect is excellent, and the gas conveying speed can be adjusted as required; and the problems of unadjustable gas conveying speed and poor gasifying effect of an existing liquefied natural gas gasifier are solved.
Description
Technical field
The present invention relates to vaporizer, particularly relate to a kind of liquefied natural gas gasifying device being connected with internal-external heat exchanger sheet, belong to LNG Liquefied natural gas conveying technology field.
Background technique
LNG Liquefied natural gas is after reducing the temperature to subzero less than 140 degree, be transported to gasholder station by special liquefied gas transport car and put in the low-temperature insulation tank of gasholder station, when needs transmit gaseous liquefied gas by pipeline outward time, low temperature gas holder (being actually liquid storage) flows out liquid LNG Liquefied natural gas by pipe, after then exchanging cold by liquefied natural gas gasifying device with external environment, liquefied gas temperature is raised, thus realize the rock gas of to walk out gaseous state in gasifier exit section, then by pipeline supply to user.Chinese Patent Application No. be 2014104052170, publication number is cn104197190, name to be called in the patent document of " a kind of air-heating type gasifier and using method thereof " i.e. a kind of existing liquefied natural gas gasifying device of switch.Existing liquefied natural gas gasifying device comprises some gasifying pipes, and gasifying pipe comprises some gasification section and bend section, and gasification section and bend section interval arrange and form structure of turning back.During use, the entrance point of gasifying pipe is linked together with low-temperature insulation tank, outlet end links together with air duct.
Existing liquefied natural gas gasifying device exists not enough: gasification rate can not adjust as required; During liquefied natural gas stream gasifying pipe, cold can not pass to gasifying pipe, fast so gasification result is poor.
Summary of the invention
The invention provides the liquefied natural gas gasifying device being connected with internal-external heat exchanger sheet that a kind of gasification result is good, gas transmission speed can adjust as required, solve the problem of the irreconcilable gasification result difference of existing liquefied natural gas gasifying device gas transmission speed.
Above technical problem is solved by following technical proposal: a kind of liquefied natural gas gasifying device being connected with internal-external heat exchanger sheet, comprise gasifying pipe, described gasifying pipe comprises the gasification section of some bend sections and at least two linear structures, described gasification section and bend section interval arrange and form structure of turning back, it is characterized in that, also comprise the transfer pump that the entrance point with described gasifying pipe links together, described transfer pump comprises pump case, the pump shaft being rotationally connected with pump case and the speed-adjustable motor driving pump shaft to rotate, some interior heat exchange sheets are provided with in described gasification section, described interior heat exchange sheet links together with described gasification section integrative-structure, the outer surface of described gasification section is provided with some outer heat exchange sheets, described outer heat exchange sheet links together with described gasification section integrative-structure.During use, the speed changing speed-adjustable motor according to the change of gas consumption makes the amount being conveyed into the liquid natural gas of gasifying pipe of transfer pump meet the requirement exporting tolerance.By arranging interior heat exchange sheet in gasification section, the internal surface area of gasification section can be increased, internal surface area increase then can increase the area of contact of LNG Liquefied natural gas with gasification section, thus cold can pass to heat exchange sheet fast when making LNG Liquefied natural gas flow through oil duct, play the effect improving gasification result.By arranging outer heat exchange sheet outside gasification section, the external surface area of gasification section can be increased, external surface area increase then can increase the area that gasification section contacts with air, thus when making LNG Liquefied natural gas flow through oil duct, cold can pass to air more fast, plays the effect improving gasification result.The mode of integrative-structure links together, and gasification section can be made as profile structure to improve convenience when making
As preferably, installation cavity is provided with in described pump shaft, shock-damping structure is provided with in described installation cavity, the described shock-damping structure radial direction comprised along described pump shaft is connected to adjusting nut together, core retainer plate, small end successively towards the butterfly spring of core retainer plate and mounting plate, described mounting plate be connected with through after described elastomeric spring and core retainer plate with the adjusting screw rod that described adjusting nut is threaded togather, described core retainer plate is externally connected with rubber ring, described rubber ring is externally connected with quality circles, and described rubber ring is provided with the taper type counterbore pushing down butterfly spring.In pump shaft, shock-damping structure is set, the quality circles of shock-damping structure provide mass M for shock-damping structure, rubber ring provides rigidity and damping for shock-damping structure, by the rubber ring of shock-damping structure, vibrational energy is converted to frictional heat energy and consumes, thus the vibration & noise produced when reducing transfer pump work; Can be adjusted rigidity and the damping of shock-damping structure by the weight of adjustment mass block circle and the hardness of rubber ring, the frequency when model frequency of shock-damping structure is resonated with pump shaft is consistent; By the precompression of rotating adjusting nut adjustable elastic backing plate, the scope of adjustment shock-damping structure rigidity and damping can be expanded.The effect that reduction pump shaft vibrates the vibration noise caused is better.
As preferably, in described core retainer plate, be provided with rubber bushing.The inner peripheral surface of core retainer plate and adjusting screw rod can be avoided to wipe and to touch generation vibration noise.
As preferably, the outer circumferential face of described core retainer plate is provided with several and stretches into core retainer plate portion connecting ring in rubber ring, and the inner peripheral surface of described quality circles is provided with several and stretches into quality circles portion connecting ring in described rubber ring.Connect more firm.
As preferably, described pump shaft passes through two bearings in described pump case, fueling cavity is formed between described pump case and two bearings, the first gear and the second gear that mesh together is provided with in described fueling cavity, described first gear links together with described pump shaft, and described second gear is rotatably connected with described pump case, oil-filling mechanism is provided with in described first gear, described oil-filling mechanism comprises oil outlet, gas supplementing opening, sealing head, sealing head is driven to seal up the first spring of oil outlet, cylinder body and slipper seal are connected to the piston of cylinder body, described cylinder body is divided into air cavity and oil pocket by described piston, described piston is provided with the one-way valve opened towards air cavity, described piston is linked together with described sealing head by connecting rod, described oil outlet is connected with described oil pocket by oil duct, described gas supplementing opening is connected with described air cavity by air flue, described oil outlet is arranged at the tooth top of described first gear, the distance that described sealing head stretches out the tooth top of described first gear is greater than the tooth top gap between described first gear and the second gear.During use, lubricant oil is loaded onto in oil pocket, pump shaft drives the first pinion rotation when rotating, when the first pinion rotation to the tooth being provided with oil outlet with the second gears meshing together time, the teeth groove of the first gear drives in sealing head indentation gear, is also moved towards oil pocket by connecting rod driven plunger and drive lubricant oil in oil pocket to flow to oil outlet through oil duct and flow to fueling cavity thus realize the lubrication to bearing when Stamping Steel Ribbon inside contracts while making the first spring energy-storage; When sealing head staggers with teeth groove, oil outlet is sealed in nose heave Xinmi City of effect lower seal of the first spring, the proceduredriven piston of sealing head movement moves towards air cavity, now because the pressure in the part outflow of the oil in oil pocket, event oil pocket is less than the pressure of air cavity, one-way valve is opened and to make in replenish air to oil pocket and to reclaim in oil suction chamber by unnecessary having in fueling cavity, make next time piston press oil pocket time lubricant oil can reliably flow out.Achieve the self oiling of transfer pump.
As preferably, the side face of the outlet end of described gasifying pipe is provided with some air outlet holes, the outer end of described air outlet hole is connected with base, and described base is connected with steam outlet pipe, is all fixed together by the mode of welding between described base and described gasifying pipe, between described base and described steam outlet pipe.During use, pneumatic tube is linked together with steam outlet pipe and realizes the output of LNG Liquefied natural gas, convenient when this structure connects with many pneumatic tubes, can radiographic inspection be passed through.Be convenient to find the joint whether poor sealing of gasification section and gasifying pipe.
As preferably, interior pipe is equipped with in described air outlet hole, the inner of described interior pipe is provided with the flange of clasp joint at described gasifying pipe internal surface, described interior pipe is located in described base and steam outlet pipe, metallic packing ring is provided with between the outer circumferential face of described interior pipe outer end and steam outlet pipe inner peripheral surface, described seal ring is axially provided with annular distending groove away from one end of described gasifying pipe, described distending groove extends along the circumference of seal ring, described distending groove is communicated with the inner space of described interior pipe, and described base, interior pipe and steam outlet pipe three weld together.Effectively can improve the join strength between steam outlet pipe and gasifying pipe and sealing reliability.
As preferably, at least one gasification section in described gasification section is provided with topples over Self-disconnecting switch for what control when the angle of inclination of described gasifying pipe is greater than set angle that described motor stops.If when gasifying pipe produces and is shifted, endothermic effect (being also cold scattering effect) usually can be caused to die down, thus gasification result is deteriorated, during inclination, also likely produce security incident.This technological scheme then when tilt to be greater than setting require time, motor is only done, make do not have rock gas to export, thus it is abnormal to safeguard in time to be convenient to Timeliness coverage vaporizer.
As preferably, described inclination Self-disconnecting switch comprises insulation crust and is fixed on two wiring pins of shell, assembly cavity is provided with in described shell, the inner of described two wiring pins is positioned at described assembly cavity, pouring weight is provided with in described assembly cavity, the pouring weight directed cavity extended along the vertical direction is provided with in described assembly cavity, described pouring weight is positioned at described pouring weight directed cavity, also be provided with in described assembly cavity under the effect of described pouring weight by the conducting plate be pressed on the inner of described two wiring pins and the spring to break making described conducting plate separate with described wiring pin, swing arm is provided with in described assembly cavity, clasp joint makes conducting plate remain on the barb Returnning spring rotated towards swing arm by barb and the driving barb of the position be pressed on the inner of wiring pin in described swing arm, described barb and swing arm are all articulated with in described assembly cavity, described pouring weight directed cavity is positioned at described swing arm, the driving arm that the driving barb that described barb is provided with the same described pouring weight cooperation extend in described pouring weight directed cavity is thrown off with described swing arm, described pouring weight directed cavity is also provided with the pouring weight promoting described pouring weight and promotes spring.
The working procedure of concrete inclination power-off is: when gasification section produces, inclination Self-disconnecting switch also tilts together, during the maximum value allowed when angle of inclination reaches design, promote spring pouring weight is upgraded, although pouring weight is started to reduce gradually by the pressing force of pouring weight to conducting plate in the process that upgrades, but under the effect of barb, conducting plate position can not be moved (namely conducting plate remains that same connecting pin reliably links together), when pouring weight continues mobile and away from conducting plate to by when being pressed on driving arm, heavy ball (if 90 ° that dump angle exceedes, the gravity of pouring weight also can coordinated drive) driving arm under the effect promoting spring drives barb to break off relations and the energy storage of barb Returnning spring, spring to break transient burst of energy and conducting plate is departed from fast with between connecting pin after barb breaks off relations.The coil losing electricity of then solenoid valve when conducting plate is thrown off with connecting pin, electromagnetic valve cylinder extends and is in elongation state, and dead electricity adsorption structure does not leave electric motor end cap and wears connecting rod and carry out transfer electric motor end cap.This switch can reduce the effect of turn-off time and electric arc.When gasification section is holded up, pouring weight moves towards conducting plate, the gravity of pouring weight makes spring to break energy storage and conducting plate close up, now due to driving arm lose the squeezing action of heavy ball, barb Returnning spring drives barb to reset (reset rear cylinder can restart and work), if now spring to break has and produces vibration and drive conducting plate with the generation producing the trend of break-make phenomenon repeatedly between wiring pin, barb can limit break-make phenomenon repeatedly, thus play and avoid repeatedly break-make and the spark phenomenon that produces.
As preferably, topple over Self-disconnecting switch described in gasification section described in each is provided with, all Self-disconnecting switches of toppling over are connected in series.Also can detect when gasifying pipe local produces, improve reliability when detecting inclination.
The present invention has following advantage: can adjust output speed according to gas consumption; Inner and outer surface is all provided with heat exchange sheet, and endothermic effect is good, and LNG Liquefied natural gas can fully be gasified; The mode of heat exchange sheet integrative-structure links together with gasification section, can realize making in the mode of section bar, and convenience during making is good.
Accompanying drawing explanation
Fig. 1 is the perspective view of the embodiment of the present invention one.
Fig. 2 is the schematic cross-section of gasification section.
Fig. 3 is the schematic diagram of transfer pump.
Fig. 4 is the cross-sectional schematic of the first gear and the second gear.
Fig. 5 is the close-up schematic view at the A place of Fig. 4.
Fig. 6 is the close-up schematic view at the B place of Fig. 4.
Fig. 7 is the structural representation of shock-damping structure.
Fig. 8 is the perspective view of the embodiment of the present invention two.
Fig. 9 be inclination Self-disconnecting switch analyse and observe enlarged diagram.
Figure 10 is that inclination Self-disconnecting switch produces the schematic diagram of toppling over the moment and spring to break does not also release energy.
Figure 11 is that inclination Self-disconnecting switch produces the schematic diagram of toppling over the moment and spring to break also releases energy.
The partial schematic diagram of Figure 12 embodiment three.
Figure 13 is the linkage structure schematic diagram of steam outlet pipe and gasifying pipe.
Figure 14 is the close-up schematic view at the C place of Figure 13.
In figure: gasifying pipe 1 air outlet hole 11, base 12, gasification section 13, bend section 14, the entrance point 15 of gasifying pipe, the outlet end 16 of gasifying pipe, interior heat exchange sheet 19, steam outlet pipe 2, shock-damping structure 3, mounting plate 31, butterfly spring 32, core retainer plate 33, core retainer plate portion connecting ring 331, adjusting nut 34, locking nut 35, adjusting screw rod 36, rubber bushing 37, rubber ring 38, taper type counterbore 381, quality circles 39, quality circles portion connecting ring 391, interior pipe 4, flange 41, seal ring 42, distending groove 421, transfer pump 5, pump shaft 51, pump case 52, transfer pump body 53, motor 54, bearing 55, fueling cavity 56, first gear 58, the tooth top 581 of the first tooth, second gear 57, minor axis 571, weld seam 6, outer heat exchange sheet 7, oil-filling mechanism 8, oil outlet 81, gas supplementing opening 82, sealing head 83, first spring 84, cylinder body 85, air cavity 851, oil pocket 852, piston 86, one-way valve 861, connecting rod 862, oil duct 87, air flue 88, inclination Self-disconnecting switch 9, shell 91, assembly cavity 911, pit 915, bradyseism pad 917, wiring pin 92, wire connecting hole 921, spring to break 93, conducting plate 94, pouring weight directed cavity 95, pouring weight 96, pouring weight promotes and plays spring 961, swing arm 97, first hinge 971, barb approaching face 972, barb 98, second hinge 981, barb Returnning spring 982, driving arm 983, sealing head stretches out the distance L1 of the tooth top of the first gear, tooth top gap L2 between first gear and the second gear.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is further illustrated.
Embodiment one, and see Fig. 1, a kind of liquefied natural gas gasifying device being connected with internal-external heat exchanger sheet, comprises gasifying pipe 1 and transfer pump 5.Gasifying pipe 1 is pipe.Change pipe 1 and comprise some gasification section 13 and bend section 14.Be specially that gasification section 13 has 4, bend section 14 has 4.Gasification section 13 is rectilinear structure, is straight tube.Gasification section 13 and bend section 14 interval arrange and make gasifying pipe 1 form structure of turning back.The outer surface of gasification section 13 is provided with some outer heat exchange sheets 7.Outer heat exchange sheet 7 distributes along the circumference of gasification section 13.Outer heat exchange sheet 7 links together with gasification section 13 integrative-structure.Transfer pump 5 is existing structure.Transfer pump 5 comprises pump case 52.The two ends of pump case 52 are provided with transfer pump body 53 and motor 54.Motor 54 is speed-adjustable motor.Motor 54 rotates for driving transfer pump body 53.The outlet end of transfer pump body 53 links together with the entrance point 15 of gasifying pipe.
See Fig. 2, in gasification section 13, be provided with some interior heat exchange sheets 19.Interior heat exchange sheet 19 is fixed together with gasification section 13 in the mode of integrative-structure.Gasification section 13, interior heat exchange sheet 19 and outer heat exchange sheet 7 three are profile structure.
See Fig. 3, transfer pump 5 comprises and also comprises pump shaft 51.Pump shaft 51 is supported in pump case 52 by two bearings 55.Fueling cavity 56 is formed between pump case 52 and two bearings 55.The first gear 58 and the second gear 57 is provided with in fueling cavity 56.First gear 58 and the second gear 57 mesh together.First gear 58 links together with pump shaft 51.Second gear 57 is rotatably connected with pump case 52 by minor axis 571.Installation cavity 511 is provided with in pump shaft 51.The shock-damping structure 3 that several distribute along pump shaft circumference is provided with in installation cavity 511.Shock-damping structure 3 comprises mounting plate 31 and quality circles 39.Mounting plate 31 and quality circles 39 are along the radially direct of pump shaft 51.
See Fig. 4, in the first gear 58, be provided with oil-filling mechanism 8.The number of oil-filling mechanism 8 is equal with the number of teeth of the first gear 58.
See Fig. 5, oil-filling mechanism 8 comprises oil outlet 81, gas supplementing opening 82, sealing head 83, first spring 84, cylinder body 85 and piston 86.The oil outlet 81 of same oil-filling mechanism and gas supplementing opening 82 are arranged on the tooth top 581 of the same tooth of the first gear 58, the tooth top of same tooth only arranges oil outlet and the gas supplementing opening of an oil-filling mechanism, and namely in the present embodiment, the tooth of oil-filling mechanism and the first gear 58 is arranged correspondingly.Sealing head 83 and the first spring 84 are arranged in oil outlet 81, stretch out tooth top 581 at the effect lower seal head 83 of the first spring 84 and seal up oil outlet.The distance L1 that sealing head stretches out the tooth top of the first gear is greater than tooth top gap L2(between the first gear and the second gear see Fig. 6).Cylinder body 85 is formed in the first gear 58 in the mode of integrative-structure, is the chamber in the first gear 58.Piston 86 slipper seal is connected to cylinder body 85.Cylinder body 85 is divided into air cavity 851 and oil pocket 852 by piston 86.Piston 86 is provided with the one-way valve 861 opened towards air cavity 851.Piston 86 is linked together with sealing head 83 by connecting rod 862.Connecting rod 862 links together with slipper seal between the first gear 58, and oil outlet 81 is disconnected with air cavity 851.Oil outlet 81 is connected with oil pocket 852 by oil duct 87.Gas supplementing opening 82 is connected with air cavity 851 by air flue 88.Oil duct 87 and air flue 88 are all be formed in the first gear 58 in the mode of integrative-structure, are the hole in the first gear 58.
See Fig. 7, shock-damping structure 3 also comprises locking nut 35, adjusting nut 34, core retainer plate 33 and the small end butterfly spring 32 towards core retainer plate.Together with locking nut 35, adjusting nut 34, core retainer plate 33, butterfly spring 32 and mounting plate 31 are connected to successively along the radial direction of pump shaft.Mounting plate 31 is connected with adjusting screw rod 36.Adjusting screw rod 36 is threaded togather with adjusting nut 34 and locking nut 35 through after butterfly spring 32 and core retainer plate 33.Rubber bushing 37 is provided with in core retainer plate 33.Core retainer plate 33 is externally connected with rubber ring 38.The outer circumferential face of core retainer plate 33 is provided with several and stretches into core retainer plate portion connecting ring 331 in rubber ring 38.Rubber ring 38 is provided with the taper type counterbore 381 pushing down butterfly spring 32.Quality circles 39 are connected to outside rubber ring 38.Quality circles 39 are made for steel.The inner peripheral surface of quality circles 39 is provided with several and stretches into quality circles portion connecting ring 391 in rubber ring 38.Shock-damping structure 3 links together with cross bar by being welded in cross bar by mounting plate 31.
See Fig. 1, during use, the entrance point of transfer pump body 53 links together with the delivery outlet of low temperature gas holder, and the outlet end 16 of gasifying pipe links together with snorkel.Motor 54 is installed required rotating speed and is driven the blade rotation in transfer pump body 53 to make the LNG Liquefied natural gas of requirement be transported in gasifying pipe 1, when rock gas flows through gasifying pipe 1, outer heat exchange sheet 7 absorbs heat and makes liquefied natural gas gasifying, and the rock gas of gaseous state exports to snorkel for user from the outlet end 16 of gasifying pipe.
The process of the lubrication of the bearing in transfer pump of the present invention is:
See Fig. 6, in the process that the first gear 58 rotates, shrink in bottom surface crush seal 83 to first gear 58 of the teeth groove of the second gear 57, sealing head 83 shrinks and oil outlet 81 is opened and makes the first spring 84 energy storage.
See Fig. 5, also moved towards oil pocket 852 by connecting rod 862 driven plunger 86 when sealing head 83 shrinks, the pressure increase in oil pocket 852 is closed by one-way valve 861 and lubricant oil in oil pocket 852 flows to oil outlet 81 through oil duct 87 and flows out from oil outlet 81 and realize the lubrication to bearing 55.
When the second gear loses the squeezing action to sealing head 83, move outside the effect lower seal head 83 of the first spring 84 and oil outlet 81 is sealed up, moved towards air cavity 851 by connecting rod 862 driven plunger 86 when sealing head 83 stretches out, pressure drop in oil pocket 852 and pressure increase in air cavity 851, one-way valve 861 is opened, oil unnecessary in air and fueling cavity 56 is through gas supplementing opening 82, air flue 88 and one-way valve 861 and flow to oil pocket 852, the air pressure that pressure in oil pocket 852 can be maintained in same gear exterior is equal, so that lubricant oil can squeeze out by piston 86 when oil pocket 852 moves next time.
Embodiment two, and the difference with embodiment one is:
See Fig. 8, each gasification section 13 is provided with topples over Self-disconnecting switch 9.All topple over Self-disconnecting switch and be connected in series and stop for the motor 54 controlling transfer pump 5.
Inclination Self-disconnecting switch 9 comprises shell 91 and wiring pin 92.Shell 91 is fixed together with gasification section 13.
See Fig. 9, inclination Self-disconnecting switch 9 also comprises spring to break 93, conducting plate 94, pouring weight directed cavity 95, pouring weight 96, swing arm 97 and barb 98.
Shell 91 is made for insulating material, is specially plastic production and forms.Assembly cavity 911 is provided with in shell 91.The intermediate portion of the diapire of assembly cavity 911 is provided with pit 915.
Wiring pin 92 has two.Two wiring pins 92 distribute in left-right direction.Wiring pin 92 is fixed on the bottom surface of shell 91.The outer end of wiring pin 92 is provided with wire connecting hole 921.The inner of wiring pin 92 is positioned at assembly cavity 911.
Spring to break 93 is stage clip flexible along the vertical direction.Spring to break 93 is positioned at assembly cavity 911.The lower end of spring to break 93 is arranged in pit 915.The upper end of spring to break 93 is connected to together with the middle part of conducting plate 94.Spring to break 93 is in compressive state.
Conducting plate 94 is positioned at assembly cavity 911.The two ends, left and right of conducting plate 94 are by being pressed on the inner of two wiring pins 92.
Pouring weight 96 promotes spring 961 by pouring weight and is suspended in pouring weight directed cavity 912.Conducting plate 94 overcomes to press after pouring weight promotes the elastic force of spring 961 at pouring weight 96 spring to break 93 to be shunk and by being pressed on the inner of two wiring pins 92.
Swing arm 97 is " T " font.The left end of swing arm 97 is articulated with in assembly cavity 911 by the first hinge 971.First hinge 971 extends in the horizontal direction.The right part of swing arm 97 is provided with barb approaching face 972.The lower end of swing arm 97 is fixed together with conducting plate 94.Pouring weight directed cavity 95 is arranged in swing arm 97.The lower end of pouring weight directed cavity 95 is provided with bradyseism pad 917.The lower end of barb 98 is articulated with in assembly cavity 911 by the second hinge 981.Second hinge 981 extends in the horizontal direction.Second hinge 981 is parallel with the first hinge 971.Barb 98 clasp joint swing arm 97 right-hand member and limit swing arm 97 and upwards swing, make conducting plate 94 remain on position by being pressed on the inner of wiring pin 92.The upper end of barb 98 is provided with barb Returnning spring 982.Barb Returnning spring 982 rotates towards swing arm for driving barb.Barb 98 is also provided with driving arm 983.Driving arm 983 extend into pouring weight directed cavity 95.Driving arm 983 is positioned at the top of pouring weight 96.Driving arm 983 is provided with extruding guide surface 9831.
See Figure 10, when gasification section produces, pouring weight 96 starts the upper end translation towards swing arm 97 under pouring weight promotes the effect of spring 961, although now the pressing force of pouring weight 96 pairs of conducting plates 94 reduces even to disappear, but under the effect of barb 98, conducting plate 94 is still constant with the contact condition of the inner of wiring pin 92, along with pouring weight 96 becomes near apart from the distance of barb 98, when pouring weight 96 is pressed into driving arm 983 and overcomes the elastic force of barb Returnning spring 982, barb 98 is thrown off with the right-hand member of swing arm 97.
See Figure 11, barb 98 is after fork 97 disengagement, spring to break 93 transient burst of energy and fast top is from the inner of wiring pin 92 by conducting plate 94, make the separated of a pair wiring pin 92 thus make power supply can not input to electrical equipment, the present invention quits work.
See Fig. 9, when gasification section is holded up, switch is also holded up together, pouring weight 96 makes fork 97 swing and makes conducting plate 94 be pressed on the inner of wiring pin 92, pouring weight 96 move down and lose driving effect to driving arm 983, barb Returnning spring 982 makes barb 98 draw close towards swing arm 97, when conducting plate 94 is connected to together with wiring pin 92, clasp joint is on the right-hand member of fork 97 again for barb 98, thus the rotation that spring to break 94 is produced can not cause the break-make repeatedly between conducting plate 94 and wiring pin 92.Holding up rear electromagnetic valve can carry out electric or dead electricity according to setting, and controls the lifting of the 3rd lifting structure.
The situation for having toppled over shown in the present embodiment, reality only needs the maximum angle inclination Self-disconnecting switch 9 tilting to setting of gasification section namely can disconnect.
Embodiment three, and the difference with embodiment two is:
See Figure 12, the side face of the outlet end 16 of gasifying pipe is provided with some air outlet holes 11.The outer end of air outlet hole 11 is connected with base 12.The outlet end 16 of base 12 and gasifying pipe welds together.Interior pipe 4 is equipped with in air outlet hole 11.The inner of interior pipe 4 is provided with flange 41.Interior pipe 4 pierces in steam outlet pipe 2 through after base 12.
See Figure 13, flange 41 clasp joint is on outlet end 16 inner peripheral surface of gasifying pipe.Outlet end 16 inner peripheral surface of flange 41 and gasifying pipe links together by means of only the mode abutted.The intersection of base 12, interior pipe 4 and steam outlet pipe 2 three welds together and forms weld seam 6.Base 12, interior pipe 4 and steam outlet pipe 2 three are sealed connected together by weld seam 6.
See Figure 14, between the outer circumferential face of interior pipe 4 outer end and steam outlet pipe 2 inner peripheral surface, be provided with metallic packing ring 42.Seal ring 42 is axially provided with annular distending groove 421 away from one end of gasifying pipe 1.Distending groove 421 extends along the circumference of seal ring 42.Distending groove 421 is communicated with the inner space of interior pipe 4
Connected with pneumatic tube by steam outlet pipe 2 during use and realize the output of LNG Liquefied natural gas.
Claims (10)
1. one kind is connected with the liquefied natural gas gasifying device of internal-external heat exchanger sheet, comprise gasifying pipe, described gasifying pipe comprises the gasification section of some bend sections and at least two linear structures, described gasification section and bend section interval arrange and form structure of turning back, it is characterized in that, also comprise the transfer pump that the entrance point with described gasifying pipe links together, described transfer pump comprises pump case, the pump shaft being rotationally connected with pump case and the speed-adjustable motor driving pump shaft to rotate, some interior heat exchange sheets are provided with in described gasification section, described interior heat exchange sheet links together with described gasification section integrative-structure, the outer surface of described gasification section is provided with some outer heat exchange sheets, described outer heat exchange sheet links together with described gasification section integrative-structure.
2. the liquefied natural gas gasifying device being connected with internal-external heat exchanger sheet according to claim 1, it is characterized in that, installation cavity is provided with in described pump shaft, shock-damping structure is provided with in described installation cavity, the described shock-damping structure radial direction comprised along described pump shaft is connected to adjusting nut together successively, core retainer plate, small end is towards the butterfly spring of core retainer plate and mounting plate, described mounting plate be connected with through after described elastomeric spring and core retainer plate with the adjusting screw rod that described adjusting nut is threaded togather, described core retainer plate is externally connected with rubber ring, described rubber ring is externally connected with quality circles, described rubber ring is provided with the taper type counterbore pushing down butterfly spring.
3. the liquefied natural gas gasifying device being connected with internal-external heat exchanger sheet according to claim 2, is characterized in that, be provided with rubber bushing in described core retainer plate.
4. the liquefied natural gas gasifying device being connected with internal-external heat exchanger sheet according to Claims 2 or 3, it is characterized in that, the outer circumferential face of described core retainer plate is provided with several and stretches into core retainer plate portion connecting ring in rubber ring, and the inner peripheral surface of described quality circles is provided with several and stretches into quality circles portion connecting ring in described rubber ring.
5. the liquefied natural gas gasifying device being connected with internal-external heat exchanger sheet according to claim 1 or 2 or 3, it is characterized in that, described pump shaft passes through two bearings in described pump case, fueling cavity is formed between described pump case and two bearings, the first gear and the second gear that mesh together is provided with in described fueling cavity, described first gear links together with described pump shaft, and described second gear is rotatably connected with described pump case, oil-filling mechanism is provided with in described first gear, described oil-filling mechanism comprises oil outlet, gas supplementing opening, sealing head, sealing head is driven to seal up the first spring of oil outlet, cylinder body and slipper seal are connected to the piston of cylinder body, described cylinder body is divided into air cavity and oil pocket by described piston, described piston is provided with the one-way valve opened towards air cavity, described piston is linked together with described sealing head by connecting rod, described oil outlet is connected with described oil pocket by oil duct, described gas supplementing opening is connected with described air cavity by air flue, described oil outlet is arranged at the tooth top of described first gear, the distance that described sealing head stretches out the tooth top of described first gear is greater than the tooth top gap between described first gear and the second gear.
6. the liquefied natural gas gasifying device being connected with internal-external heat exchanger sheet according to claim 1 or 2 or 3, it is characterized in that, the side face of the outlet end of described gasifying pipe is provided with some air outlet holes, the outer end of described air outlet hole is connected with base, described base is connected with steam outlet pipe, is all fixed together by the mode of welding between described base and described gasifying pipe, between described base and described steam outlet pipe.
7. the liquefied natural gas gasifying device being connected with internal-external heat exchanger sheet according to claim 6, it is characterized in that, interior pipe is equipped with in described air outlet hole, the inner of described interior pipe is provided with the flange of clasp joint at described gasifying pipe internal surface, described interior pipe is located in described base and steam outlet pipe, metallic packing ring is provided with between the outer circumferential face of described interior pipe outer end and steam outlet pipe inner peripheral surface, described seal ring is axially provided with annular distending groove away from one end of described gasifying pipe, described distending groove extends along the circumference of seal ring, described distending groove is communicated with the inner space of described interior pipe, described base, interior pipe and steam outlet pipe three weld together.
8. the liquefied natural gas gasifying device being connected with internal-external heat exchanger sheet according to claim 1 or 2 or 3, it is characterized in that, at least one gasification section in described gasification section be provided with for control when the angle of inclination of described gasifying pipe is greater than set angle described motor stop toppling over Self-disconnecting switch.
9. the liquefied natural gas gasifying device being connected with internal-external heat exchanger sheet according to claim 8, it is characterized in that, described inclination Self-disconnecting switch comprises insulation crust and is fixed on two wiring pins of shell, assembly cavity is provided with in described shell, the inner of described two wiring pins is positioned at described assembly cavity, pouring weight is provided with in described assembly cavity, the pouring weight directed cavity extended along the vertical direction is provided with in described assembly cavity, described pouring weight is positioned at described pouring weight directed cavity, also be provided with in described assembly cavity under the effect of described pouring weight by the conducting plate be pressed on the inner of described two wiring pins and the spring to break making described conducting plate separate with described wiring pin, swing arm is provided with in described assembly cavity, clasp joint makes conducting plate remain on the barb Returnning spring rotated towards swing arm by barb and the driving barb of the position be pressed on the inner of wiring pin in described swing arm, described barb and swing arm are all articulated with in described assembly cavity, described pouring weight directed cavity is positioned at described swing arm, the driving arm that the driving barb that described barb is provided with the same described pouring weight cooperation extend in described pouring weight directed cavity is thrown off with described swing arm, described pouring weight directed cavity is also provided with the pouring weight promoting described pouring weight and promotes spring.
10. the liquefied natural gas gasifying device being connected with internal-external heat exchanger sheet according to claim 8, is characterized in that, topple over Self-disconnecting switch described in gasification section described in each is provided with, and all Self-disconnecting switches of toppling over are connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510379605.0A CN105299448A (en) | 2015-07-02 | 2015-07-02 | Liquefied natural gas gasifier fixedly connected with inner and outer heat exchange fins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510379605.0A CN105299448A (en) | 2015-07-02 | 2015-07-02 | Liquefied natural gas gasifier fixedly connected with inner and outer heat exchange fins |
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| Publication Number | Publication Date |
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| CN105299448A true CN105299448A (en) | 2016-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510379605.0A Pending CN105299448A (en) | 2015-07-02 | 2015-07-02 | Liquefied natural gas gasifier fixedly connected with inner and outer heat exchange fins |
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Citations (6)
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|---|---|---|---|---|
| CN2777734Y (en) * | 2005-02-03 | 2006-05-03 | 杨永山 | Inclined power-off switch |
| CN202793085U (en) * | 2012-09-03 | 2013-03-13 | 昆明理工大学 | Air heat exchanger |
| CN103557514A (en) * | 2013-11-18 | 2014-02-05 | 孔泽学 | Box type high-voltage heater |
| CN104471303A (en) * | 2012-07-16 | 2015-03-25 | 乔治洛德方法研究和开发液化空气有限公司 | Equipment and method for filling pressurized gas cylinders from a liquefied gas tank |
| CN104613167A (en) * | 2015-02-16 | 2015-05-13 | 盐城工学院 | Self-lubricating gear |
| CN105047365A (en) * | 2015-05-09 | 2015-11-11 | 陈学福 | Transformer radiator with fixedly connected inner and outer fins |
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2015
- 2015-07-02 CN CN201510379605.0A patent/CN105299448A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2777734Y (en) * | 2005-02-03 | 2006-05-03 | 杨永山 | Inclined power-off switch |
| CN104471303A (en) * | 2012-07-16 | 2015-03-25 | 乔治洛德方法研究和开发液化空气有限公司 | Equipment and method for filling pressurized gas cylinders from a liquefied gas tank |
| CN202793085U (en) * | 2012-09-03 | 2013-03-13 | 昆明理工大学 | Air heat exchanger |
| CN103557514A (en) * | 2013-11-18 | 2014-02-05 | 孔泽学 | Box type high-voltage heater |
| CN104613167A (en) * | 2015-02-16 | 2015-05-13 | 盐城工学院 | Self-lubricating gear |
| CN105047365A (en) * | 2015-05-09 | 2015-11-11 | 陈学福 | Transformer radiator with fixedly connected inner and outer fins |
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Application publication date: 20160203 |