CN105299456A - Vertical liquefied natural gas vaporizer with defrosting brushes - Google Patents
Vertical liquefied natural gas vaporizer with defrosting brushes Download PDFInfo
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- CN105299456A CN105299456A CN201510425827.1A CN201510425827A CN105299456A CN 105299456 A CN105299456 A CN 105299456A CN 201510425827 A CN201510425827 A CN 201510425827A CN 105299456 A CN105299456 A CN 105299456A
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Abstract
The invention relates to a vaporizer. A vertical liquefied natural gas vaporizer with defrosting brushes comprises a vaporizing pipe that comprises a plurality of bent sections and a vaporization section of a linear structure; the vaporization section and the bent sections are arranged at intervals to form a turn-back structure; a plurality of heat exchange plates are arranged on an external surface of the vaporization section; the vaporization section extends in an up-and-down direction; the heat exchange plates are distributed in a circumferential direction of the vaporization section; each heat exchange plate is of a flat plate structure, and a plane of the heat exchange plate is a vertical plane; defrosting brushes are arranged on the two sides of the heat exchange plates and each defrosting brush comprises a brush seat and brush hair arranged on the brush seat; the brush hair is connected against the heat exchange plates; besides, the defrosting brushes are connected with a lifting mechanism to drive the defrosting brushes to go up and down. The vertical liquefied natural gas vaporizer with the defrosting brushes is capable of conveniently removing frost on the surfaces of the defrosting brushes, and therefore, a problem of inconvenient defrosting of an existing liquefied natural gas vaporizer is solved.
Description
Technical field
The present invention relates to vaporizer, particularly relate to a kind of vertical liquefied natural gas gasifying device being provided with defrosting brush, 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, and the outer surface of gasification section is provided with some heat exchange sheets.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 has the following disadvantages: after heat exchanger surface easily produces frost, defrosting is inconvenient, then can affect the gasification result of vaporizer, cause LNG Liquefied natural gas fully to gasify after producing frosting.
Summary of the invention
The invention provides a kind of vertical liquefied natural gas gasifying device being provided with defrosting brush that can remove the frost on heat exchange sheet surface easily, solve the problem of existing liquefied natural gas gasifying device defrosting inconvenience.
Above technical problem is solved by following technical proposal: a kind of vertical liquefied natural gas gasifying device being provided with defrosting brush, comprise gasifying pipe, described gasifying pipe comprises the gasification section of some bend sections and linear structure, described gasification section and bend section interval arrange and form structure of turning back, the outer surface of described gasification section is provided with some heat exchange sheets, described gasification section extends along the vertical direction, described heat exchange sheet distributes along the circumference of described gasification section, described heat exchange sheet is slab construction, the plane at described heat exchange sheet place is vertical plane, the both sides of described heat exchange sheet are all provided with defrosting brush, described defrosting brush comprises brush holder and is arranged at the bristle of brush holder, described bristle is connected to together with described heat exchange sheet, described defrosting brush is connected with the elevator mechanism driving the lifting of defrosting brush.When after heat exchange sheet surface frosting in using process, then drive the lifting of defrosting brush by design organization, the frost of heat exchange sheet both side surface to scraping, thus is avoided frost to cover on heat exchange sheet affecting endothermic effect by the bristle in defrosting brush.
As preferably, defrosting brush on all heat exchange sheets shares described elevator mechanism, described elevator mechanism comprises substrate, be rotationally connected with the intermediate gear of substrate, be connected to the threaded stem of defrosting brush, be connected to the guide rod of defrosting brush, the output gear being threadedly connected to threaded stem and the motor driving intermediate gear to rotate, described guide rod is parallel with threaded stem and vertically extend, described guide rod is arranged in described substrate, described output gear is rotationally connected with described substrate, described output gear meshes together with described intermediate gear, described motor is fixed in described substrate, described motor comprises motor casing and is rotationally connected with the motor shaft of motor casing.Compact structure is good, good to synchronism during each heat exchange sheet defrosting.
As preferably, described motor shaft passes through two bearings in described motor casing, fueling cavity is formed between described motor casing 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 motor shaft, and described second gear is rotatably connected with described motor casing, 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, motor 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 motor bearings.
As preferably, installation cavity is provided with in described motor shaft, shock-damping structure is provided with in described installation cavity, the described shock-damping structure radial direction comprised along described motor 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 motor 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 to consume, thus the vibration & noise produced when reducing elevator mechanism 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 motor 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 motor 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, be provided with between the defrosting brush of same a slice heat exchange sheet both sides and make bristle be connected to resilient attachment arms together with heat exchange sheet.Bristle in the process defrosted can be avoided inadequate with the abutting dynamics of heat exchange sheet.If bristle is inadequate with the abutting dynamics of heat exchange sheet, then can produce remaining frost on heat exchange sheet, and the frost of these remnants is due to rubbed by defrosting brush and create local melting phenomenon, thus returns and build-up ice, be then difficult to after build-uping ice remove.
As preferably, described brush holder is provided with towards the side of described heat exchange sheet and scrapes sword, described in scrape separated with described heat exchange sheet of sword, scrape the top of sword described in described bristle is positioned at.When the thickness of frost exceed scrape sword with open gap between heat exchange sheet time, then first there is scraper that the frost exceeded is removed, then removed by the frost of remainder by bristle, the thickness of frost can be avoided excessive and cause bristle transition bend thus affect the working life of bristle and the effect of defrosting.
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.
The present invention has following advantage: can be removed by the frost on heat exchange sheet surface quickly and easily.
Accompanying drawing explanation
Fig. 1 is the perspective view of the embodiment of the present invention one.
Fig. 2 is the enlarged diagram of gasification section and defrost mechanism.
Fig. 3 is that the D place of Fig. 2 is along being parallel to heat exchange sheet and carrying out the enlarged diagram of orthographic projection perpendicular to the axial direction of gasification section.
Fig. 4 is the schematic diagram of motor.
Fig. 5 is the cross-sectional schematic of the first gear and the second gear.
Fig. 6 is the close-up schematic view at the A place of Fig. 5.
Fig. 7 is the close-up schematic view at the B place of Fig. 5.
Fig. 8 is the structural representation of shock-damping structure.
The partial schematic diagram of Fig. 9 embodiment two.
Figure 10 is the linkage structure schematic diagram of steam outlet pipe and gasifying pipe.
Figure 11 is the close-up schematic view at the C place of Figure 10.
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, 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, motor 5, motor shaft 51, motor casing 52, actuation gear 53, 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, 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, defrost mechanism 9, defrosting brush 91, brush holder 911, bristle 912, scrape sword 913, resilient attachment arms 915, elevator mechanism 92, substrate 921, intermediate gear 922, threaded stem 923, guide rod 924, output gear 925, 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 vertical liquefied natural gas gasifying device being provided with defrosting brush, comprises gasifying pipe 1.Gasifying pipe 1 is pipe.Gasifying pipe 1 comprises some gasification section 13 and bend section 14.Gasification section 13 is the rectilinear structure extended along the vertical direction, the straight tube being above-below direction extension.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 heat exchange sheets 7.Heat exchange sheet 7 distributes along the circumference of gasification section 13.Heat exchange sheet 7 welds together with gasification section 13, also can link together by integrative-structure.Heat exchange sheet 7 is slab construction.The plane at heat exchange sheet 7 place is vertical plane.Each gasification section 13 is provided with a defrost mechanism 9.
Defrost mechanism 9 comprises some to defrosting brush 91 and the elevator mechanism 92 driving the lifting of defrosting brush 91.All defrosting brushes 91 share same elevator mechanism 92.The logarithm of defrosting brush 91 is equal with the quantity of heat exchange sheet 7.Be distributed in the both sides of heat exchange sheet 7 along the circumference of gasification section 13 with two defrosting brushes in a pair defrosting brush 91.Elevator mechanism 92 comprises substrate 921, intermediate gear 922, threaded stem 923 and guide rod 924.Substrate 921 is fixed together with gasification section 13.Intermediate gear 922 is rotationally connected with substrate 921.Threaded stem 923 extends along the vertical direction.The quantity of threaded stem 923 is equal with the quantity of defrosting brush 91.The upper end of threaded stem 923 is arranged in substrate 921.The lower end of threaded stem 923 links together with defrosting brush 91 correspondingly.Guide rod 924 is parallel with threaded stem 923.The quantity of guide rod 924 is equal with the quantity of defrosting brush 91.The upper end of guide rod 924 is arranged in the guide sleeve in substrate 921.The lower end of guide rod 924 links together with defrosting brush 91 correspondingly.
See Fig. 2, elevator mechanism also comprises motor 5.The threaded upper ends of each root threaded stem 923 is connected with an output gear 925.Output gear 925 is rotationally connected with substrate 921.All output gears 925 distribute along the circumference of intermediate gear 922.Output gear 925 meshes together with intermediate gear 922.Motor 5 comprises motor casing 52 and is rotationally connected with the motor shaft 51 of motor casing.Motor casing 52 is fixed together with substrate 921.Motor shaft 51 vertically extends.Motor shaft 51 is provided with actuation gear 53.Actuation gear 53 meshes together with intermediate gear 922.Defrosting brush 91 comprises brush holder 911 and is arranged at the bristle 912 of brush holder.Guide rod 924 and threaded stem 923 link together with brush holder 911.
See Fig. 3, brush holder 911 is provided with towards the side of heat exchange sheet and scrapes sword 913.Scrape separated with heat exchange sheet 7 of sword 913.Bristle 912 is positioned at the top of scraping sword 913.Bristle 912 is connected to together with heat exchange sheet 7.Namely be positioned at the defrosting brush 91(of same a slice heat exchange sheet both sides with two defrosting brushes of a pair defrosting brush) between be provided with and make bristle 912 be connected to resilient attachment arms 915 together with heat exchange sheet 7.Resilient attachment arms 915 is that same brush holder 911 links together.
See Fig. 4, motor shaft 51 is supported in motor casing 52 by two bearings 55.Fueling cavity 56 is formed between motor casing 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 motor shaft 51.Second gear 57 is rotatably connected with motor casing 52 by minor axis 571.Installation cavity 511 is provided with in motor shaft 51.The shock-damping structure 3 that several distribute along motor 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 motor shaft 51.
See Fig. 5, 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. 6, 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. 7).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. 8, 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 motor 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.
During use, see Fig. 1, Fig. 2 and Fig. 3, the entrance point 15 of gasifying pipe links together with liquefied natural gas (LNG) tank.The outlet end 16 of gasifying pipe exports to snorkel for user.When needing when frosting on heat exchange sheet 7 to remove, starting electrical machinery 5 and make motor 5 clockwise and anticlockwise, motor 5 drives actuation gear 53 to rotate, actuation gear 53 intermediate gear 922 rotates, intermediate gear 922 driver output gear 925 rotates, and output gear 925 drives threaded stem 923 to be elevated, and threaded stem 923 drives defrosting brush 91 to be elevated, defrosting brush 91 blade 912 by the frost on heat exchange sheet 7 to scraping, thus realize defrosting.
The process of the lubrication of the bearing in motor of the present invention is:
See Fig. 7, 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. 6, 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. 9, 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 10, 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 11, 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. the vertical liquefied natural gas gasifying device being provided with defrosting brush, comprise gasifying pipe, described gasifying pipe comprises the gasification section of some bend sections and linear structure, described gasification section and bend section interval arrange and form structure of turning back, the outer surface of described gasification section is provided with some heat exchange sheets, it is characterized in that, described gasification section extends along the vertical direction, described heat exchange sheet distributes along the circumference of described gasification section, described heat exchange sheet is slab construction, the plane at described heat exchange sheet place is vertical plane, the both sides of described heat exchange sheet are all provided with defrosting brush, described defrosting brush comprises brush holder and is arranged at the bristle of brush holder, described bristle is connected to together with described heat exchange sheet, described defrosting brush is connected with the elevator mechanism driving the lifting of defrosting brush.
2. the vertical liquefied natural gas gasifying device being provided with defrosting brush according to claim 1, it is characterized in that, defrosting brush on all heat exchange sheets shares described elevator mechanism, described elevator mechanism comprises substrate, be rotationally connected with the intermediate gear of substrate, be connected to the threaded stem of defrosting brush, be connected to the guide rod of defrosting brush, the output gear being threadedly connected to threaded stem and the motor driving intermediate gear to rotate, described guide rod is parallel with threaded stem and vertically extend, described guide rod is arranged in described substrate, described output gear is rotationally connected with described substrate, described output gear meshes together with described intermediate gear, described motor is fixed in described substrate, described motor comprises motor casing and is rotationally connected with the motor shaft of motor casing.
3. the vertical liquefied natural gas gasifying device being provided with defrosting brush according to claim 2, it is characterized in that, described motor shaft passes through two bearings in described motor casing, fueling cavity is formed between described motor casing 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 motor shaft, and described second gear is rotatably connected with described motor casing, 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.
4. the vertical liquefied natural gas gasifying device being provided with defrosting brush according to Claims 2 or 3, it is characterized in that, installation cavity is provided with in described motor shaft, shock-damping structure is provided with in described installation cavity, the described shock-damping structure radial direction comprised along described motor 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.
5. the vertical liquefied natural gas gasifying device being provided with defrosting brush according to claim 4, is characterized in that, be provided with rubber bushing in described core retainer plate.
6. the vertical liquefied natural gas gasifying device being provided with defrosting brush according to claim 4, 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.
7. the vertical liquefied natural gas gasifying device being provided with defrosting brush according to claim 1 or 2 or 3, is characterized in that, be provided with and make bristle be connected to resilient attachment arms together with heat exchange sheet between the defrosting brush of same a slice heat exchange sheet both sides.
8. the vertical liquefied natural gas gasifying device being provided with defrosting brush according to claim 7, is characterized in that, described brush holder is provided with towards the side of described heat exchange sheet and scrapes sword, described in scrape separated with described heat exchange sheet of sword, scrape the top of sword described in described bristle is positioned at.
9. the vertical liquefied natural gas gasifying device being provided with defrosting brush 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.
10. the vertical liquefied natural gas gasifying device being provided with defrosting brush according to claim 9, 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.
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| CN201510425827.1A CN105299456A (en) | 2015-07-20 | 2015-07-20 | Vertical liquefied natural gas vaporizer with defrosting brushes |
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| CN201510425827.1A CN105299456A (en) | 2015-07-20 | 2015-07-20 | Vertical liquefied natural gas vaporizer with defrosting brushes |
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| CN202547220U (en) * | 2012-02-27 | 2012-11-21 | 范良凯 | Defrosting mechanism of plate type evaporator |
| CN203231082U (en) * | 2013-03-15 | 2013-10-09 | 宁波绿源液化天然气发展有限公司 | Surrounding gasifier and gas station |
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