CN110319345A - A kind of LNG gasification device of Hybrid Heating - Google Patents
A kind of LNG gasification device of Hybrid Heating Download PDFInfo
- Publication number
- CN110319345A CN110319345A CN201910628007.0A CN201910628007A CN110319345A CN 110319345 A CN110319345 A CN 110319345A CN 201910628007 A CN201910628007 A CN 201910628007A CN 110319345 A CN110319345 A CN 110319345A
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- China
- Prior art keywords
- hot water
- plate
- overflow
- storgae
- convex
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
- F17C7/02—Discharging liquefied gases
- F17C7/04—Discharging liquefied gases with change of state, e.g. vaporisation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention provides a kind of LNG gasification devices of Hybrid Heating, are made of hot water distributor, finned tube, LNG distributor box, NG plenum chamber etc..Hot water distributor distributor box containing hot water, water inlet pipe, hot water storgae, convex overflow plate, cylindrical type buffer, cushion cover, distribution plate, groove-type channel, overflow plate, drainage plate, hot water storgae is divided by buffer area, distribution area, overflow area, heat transfer zone using distribution plate and overflow plate, buffer area is in stable state with the hot water that ensure that in heat transfer zone that is not connected to of heat transfer zone, so that hot water forms equally distributed hot water liquid film in fin tube outer surface via deflector.The present invention heats LNG using air as heat source when daytime temperature is higher.When night, temperature was lower, LNG is heated using factory's heat drain, to improve the gasification efficiency of LNG.
Description
Technical field
The invention belongs to gas-fired equipment technical fields, are related to a kind of LNG gasification device of Hybrid Heating.
Background technique
Liquefied natural gas (Liquefied Natural Gas, abbreviation LNG) is due to calorific value is high, burnout rate is good, burning
The features such as product environmental pollution is small, referred to as good clean fuel.It is a kind of liquefied mixture based on methane, storage
Space is about the 1/600 of gaseous natural gas under homogenous quantities mark condition (Natural Gas, abbreviation NG), and it is empty to dramatically save storage
Between, it is readily transported.Air-heating type gasifier is presently the most common gasifier type, using air as heat transferring medium, to add
Hot low temperature LNG, heat exchanger tube use star-like fin tube structure, and fin is evenly distributed.Because its working principle is simple, operation and
The advantages that maintenance cost is low, stable and be widely applied.It, will using cryogenic pump when needing to supply for subordinate subscriber
LNG in low-temperature storage tank inputs air-heating type gasifier, and it is gaseous natural gas that LNG gasifies in gasifier, and temperature should be not less than
5 DEG C of environment temperature (city gas code requirement), natural gas temperature is too low easily to form hydrate in pipe content, blocks pipeline.
Compared with the gasifier of other forms, air-heating type gasifier is easy to be influenced by external environment, northwest China
Area's day and night temperature is more than 15 DEG C, and winter, days are short and nights long, greatly reduces the heat exchange efficiency of gasifier, so that gaseous natural gas
Outlet temperature, which reduces, even to gasify not exclusively, reduces amount of vaporization.When gasification of the LNG in air-heating type gasifier is incomplete
When, the coupling for managing interior gas-liquid two-phase fluid can make pipeline generate vibration, so that biphase gas and liquid flow pipeline becomes self-excitation
Vibrating system, causes gasifier finned tube internal vibration, and the unstability of vibration seriously affects the heat transfer property of gasifier, influences gas transmission
The safety and efficient operation of pipeline, or even cause the accident, influence the person and property safety.
Summary of the invention
To solve the problems in background technique, the present invention provides a kind of LNG gasification devices of Hybrid Heating, work as environment temperature
It is too low when LNG gasification being caused to be not thorough, by reasonable arrangement form and cleverly connection type, realize the heat at the top of gasifier
Hot water is assigned to each finned tube and makes to be uniformly distributed into along hot water that flows from above to below outside finned tube by water distributor
The effect of film, to improve the gasification efficiency of LNG.
The object of the present invention is achieved like this:
A kind of LNG gasification device of Hybrid Heating is made of hot water distributor, finned tube, LNG distributor box, NG plenum chamber etc..Hot water
Distributor distributor box containing hot water, water inlet pipe, hot water storgae, convex overflow plate, cylindrical type buffer, cushion cover, distribution plate, slot
Type channel, overflow plate, drainage plate, it is characterized in that: water inlet pipe one end connects hot water distributor box, outside the other end and hot water trench bottom
Side center is connected and fixed, and the hot water storgae bottom inside center is fixedly connected with cylindrical type buffer, the cylindrical type buffer
It is arranged at intervals with first-level buffer plate, level 2 buffering plate, three-level buffer board from bottom to top, every grade of buffer board is equipped with multiple diameter phases
Same circle water hole, first-level buffer plate circle water hole diameter is the 15%~30% of water inlet pipe internal diameter, and the diameter in second level circle water hole is one
The 50%~85% of grade circle water hole diameter, the diameter in three-level circle water hole are the 50%~85% of second level circle water hole diameter, and three-level is slow
The top of punching is equipped with cushion cover, and multiple identical hot water storgaes are equally spaced side by side, along length side inside two hot water storgae of outside
To a convex overflow plate is provided only with, the height on the low side in convex overflow plate two sides is the 9/10 of intermediate flash height, described
Flash and hot water storgae side are contour among convex overflow plate, and distribution is equipped between hot water flute length side plate and convex overflow plate and is inserted
Region between hot water flute length side plate and convex overflow plate is divided into the buffer area and two sides at middle part by plate, the distribution plate
Area is distributed, forms an overflow area between convex overflow plate and hot water flute length side plate；It is set along its length inside remaining hot water storgae
There are two convex overflow plates, distribution plate is equipped between two convex overflow plates, the distribution plate will be between two convex overflow plates
Region be divided into middle part buffer area and two sides distribution area, two convex overflow plates are respectively between two long side plates of hot water storgae
Two overflow areas are formed, adjacent hot water storgae is connected by groove-type channel, is at the top of the groove-type channel with hot water storgae top
Same level, the groove-type channel depth are the 1/2 of hot water groove depth, and the groove-type channel is connected to the overflow of adjacent hot water storgae
Area, multiple groove-type channels are equally spaced side by side between adjacent hot water storgae, the spacing of adjacent groove-type channel and adjacent hot water storgae
Spacing it is consistent, the side plate of the side plate of the groove-type channel and hot water storgae forms heat transfer zone, in the groove profile for surrounding the heat transfer zone
Overflow plate is set on channel side plate and hot water flute length side plate, and the slot bottom of the overflow plate is located at convex overflow plate two sides
Under low side, the slot bottom of the overflow plate is equipped with the drainage plate for making overflow area hot water flow to heat transfer zone, the drainage plate
It is in 30 ° of angles with level, described drainage plate one end matches with finned tube, so that hot water is in the form of a film under the effect of gravity
It is flowed from above to below along fin pipe outer wall, the finned tube is made of four fins, and angle is 90 ° between fin, the finned tube
It is welded to each other and is fixed on supporting leg with squared profile.
The utility model has the advantages that
It is real by reasonable arrangement form and cleverly connection type the present invention provides a kind of LNG gasification device of Hybrid Heating
Hot water is assigned to each pipeline and made equal along hot water that flows from above to below outside finned tube by the hot water distributor at existing top
The even effect for being scattered in film, when ambient temperature is too low, the hot water distributor at the top of gasifier is started to work, and utilizes work
Factory's heat drain provides stable heat source to gasifier, reduces influence of the environment to gasification efficiency, so that LNG gasification is more thorough
Bottom improves amount of vaporization, it is suppressed that because the coupling of gas-liquid two-phase fluid in pipe makes pipeline generate the phenomenon that vibrating, to factory
Heat drain recycled, reduce the thermal pollution to environment.
The present invention carries out level Four to hot water by first-level buffer plate, level 2 buffering plate, three-level buffer board and cushion cover and delays
Punching, effectively reduces hot water impact force, ensure that buffering effect, to improve the stability of seawater flowing.
The present invention is by matching hot water storgae, convex overflow plate, distribution plate, groove-type channel, ingenious between overflow plate
It closes, hot water distributor is divided into buffer area, distribution area, overflow area and heat transfer zone, not being connected to for buffer area and heat transfer zone can be with
Effectively weaken the influence that hot-zone liquid film uniformity and stability are exchanged when hot water generates vortex or great fluctuation process in buffer area, so that wing
LNG is uniformly heated in piece pipe.
Detailed description of the invention
Attached drawing 1 is isometric structural schematic diagram of the present invention.
Attached drawing 2 is overlooking structure diagram of the present invention.
Attached drawing 3 is enlarged diagram at A in Fig. 2.
Attached drawing 4 is the broken section structural schematic diagram of hot water distributor.
Attached drawing 5 is the broken section structural schematic diagram of cylindrical type buffer.
Attached drawing 6 is the structural schematic diagram of single finned tube.
In above-mentioned figure: 1- hot water distributor；2- finned tube；3-LNG distributor box；4-NG plenum chamber；5- hot water distributor box；
6- water inlet pipe；7- hot water storgae；8- convex overflow plate；9- cylindrical type buffer；10- cushion cover；11- distributes plate；
12- groove-type channel；13- overflow plate；14 drainage plates-；15- first-level buffer plate；16- level 2 buffering plate；17- three-level buffering
Plate；The buffer area 18-；19- distributes area；The overflow area 20-；The heat transfer zone 21-；22- squared profile；23- supporting leg.
Specific embodiment
Embodiment 1:
A kind of LNG gasification device of Hybrid Heating, by hot water distributor (1), finned tube (2), LNG distributor box (3), NG plenum chamber
(4) composition such as.Hot water distributor (1) distributor box containing hot water (5), water inlet pipe (6), hot water storgae (7), convex overflow plate (8), cylinder
Type buffer (9), cushion cover (10), distribution plate (11), groove-type channel (12), overflow plate (13), drainage plate (14),
Be characterized in: water inlet pipe (6) one end connects hot water distributor box (5), and the other end is connected and fixed with hot water storgae (7) bottom outside center,
The hot water storgae bottom inside center is fixedly connected with cylindrical type buffer (9), and the cylindrical type buffer is spaced from bottom to top
It is provided with first-level buffer plate (15), level 2 buffering plate (16), three-level buffer board (17), every grade of buffer board is equipped with multiple diameters
The top in identical round water hole, three-level buffer board (17) is equipped with cushion cover (10), between multiple identical hot water storgaes (7) are waited side by side
Away from arrangement, it is provided only with a convex overflow plate (8) along its length inside two hot water storgae of outside (7), in hot water storgae (7) long side plate
Distribution plate (11) is equipped between convex overflow plate (8), the distribution plate is by the long side plate of hot water storgae (7) and convex overflow plate
(8) region between is divided into the buffer area (18) at middle part and the distribution area (19) of two sides, convex overflow plate (8) and hot water storgae
(7) overflow area (20) is formed between long side plate；Remaining hot water storgae (7) is internal to be equipped with two convex overflow plates along its length
(8), distribution plate (11) is equipped between two convex overflow plates (8), the distribution plate will be between two convex overflow plates (8)
Region be divided into middle part buffer area (18) and two sides distribution area (19), two convex overflow plates (8) respectively with hot water storgae (7)
Two overflow areas (20) are formed between two long side plates, adjacent hot water storgae (7) is connected by groove-type channel (12), and the groove profile is logical
Road is connected to the overflow area (20) of adjacent hot water storgae (7), and multiple groove-type channels (12) are equally spaced in adjacent hot water storgae side by side
(7) between, the side plate of the groove-type channel and the side plate of hot water storgae (7) form heat transfer zone (21), are surrounding the heat transfer zone
Overflow plate (13) are set on groove-type channel (12) side plate and hot water storgae (7) long side plate, the slot bottom of the overflow plate is set
There is the drainage plate (14) for making overflow area (20) hot water flow to heat transfer zone (21), described drainage plate one end and finned tube (2) match
Close so that hot water is flowed from above to below along fin pipe outer wall under the effect of gravity in the form of a film, the finned tube with it is rectangular
Profile (22) is welded to each other and is fixed on supporting leg (23).
Embodiment 2:
The height on the low side in convex overflow plate (8) two sides is the 9/10 of intermediate flash height, among the convex overflow plate flash with
Hot water storgae side is contour, and first-level buffer plate (15) circle water hole diameter is the 15%~30% of water inlet pipe (6) internal diameter, level 2 buffering plate
(16) justify water hole diameter is first-level buffer plate (15) circle water hole diameter 50%~85%, three-level buffer board (17) justifies the straight of water hole
Diameter is the 50%~85% of level 2 buffering plate (16) circle water hole diameter, is at the top of groove-type channel (12) with hot water storgae (7) top
Same level, groove-type channel (12) depth are the 1/2 of hot water storgae (7) depth, the spacing and adjacent heat of adjacent groove-type channel (12)
The spacing of sink (7) is consistent, and the slot bottom of overflow plate (13) is located under the low side in convex overflow plate (8) two sides, drainage plate
It (14) is in 30 ° of angles with hot water storgae (7) side plate top levels, finned tube (2) is made of four fins, and angle is between fin
90°。
Embodiment 3:
When environment temperature is higher, and NG outlet temperature and gas output are met the requirements, the hot water distributor at the top of gasifier does not work,
Gasifier heats LNG using air as heat source, and when environment temperature is lower, when being not thorough of LNG gasification, gasifier is with factory
Heat drain is that heat source heats LNG, and factory's heat drain is first entered along water inlet pipe by hot water distributor box and is located in hot water storgae
Buffer unit, first-level buffer plate, level 2 buffering plate, three-level buffer board in the buffer unit and is located above three-level buffer board
Cushion cover level Four buffering is carried out to hot water, hot water flows into buffer area by buffer unit, by adjusting the height of distribution plate,
So that the hot water of buffer area enters distribution area and overflows after hot water reach a certain height in distribution area through the low side in convex overflow plate two sides
Overflow area is flowed into connect the overflow area of adjacent hot water storgae by groove-type channel after the hot water in overflow area reach a certain height, make
It obtains and is covered with hot water around heat transfer zone, adjust overflow plate, hot water is made to enter heat transfer zone by overflow area, under the action of drainage plate,
So that hot water is flowed from above to below along fin pipe outer wall in the form of a film by gravity, LNG is by gasifier bottom LNG distributor box
It into finned tube, is flowed up and down along finned tube tube side, manages outer hot water and transfer heat to LNG in pipe, it is made to be heated and gasify
The NG plenum chamber of gasifier bottom is flowed into NG temperature close to after environment temperature for NG.
Claims (2)
1. a kind of LNG gasification device of Hybrid Heating, by hot water distributor (1), finned tube (2), LNG distributor box (3), NG plenum chamber
(4) composition, hot water distributor (1) distributor box containing hot water (5), water inlet pipe (6), hot water storgae (7), the convex overflow plate (8), cylinder such as
Type buffer (9), cushion cover (10), distribution plate (11), groove-type channel (12), overflow plate (13), drainage plate (14),
Be characterized in: water inlet pipe (6) one end connects hot water distributor box (5), and the other end is connected and fixed with hot water storgae (7) bottom outside center,
The hot water storgae bottom inside center is fixedly connected with cylindrical type buffer (9), and the cylindrical type buffer is spaced from bottom to top
It is provided with first-level buffer plate (15), level 2 buffering plate (16), three-level buffer board (17), every grade of buffer board is equipped with multiple diameter phases
The top in same circle water hole, three-level buffer board (17) is equipped with cushion cover (10), multiple identical hot water storgaes (7) equidistant cloth arranged side by side
It sets, is provided only with a convex overflow plate (8) along its length inside two hot water storgae of outside (7), in the long side plate of hot water storgae (7) and convex
Distribution plate (11) is equipped between type overflow plate (8), the distribution plate is by the long side plate of hot water storgae (7) and convex overflow plate (8)
Between region be divided into the buffer area (18) at middle part and the distribution area (19) of two sides, convex overflow plate (8) and hot water storgae (7) are grown
An overflow area (20) is formed between side plate；Remaining hot water storgae (7) is internal to be equipped with two convex overflow plates (8) along its length,
Distribution plate (11) is equipped between two convex overflow plates (8), the distribution plate divides the region between two convex overflow plates (8)
Be divided into middle part buffer area (18) and two sides distribution area (19), two convex overflow plates (8) respectively with two long sides of hot water storgae (7)
Two overflow areas (20) are formed between plate, adjacent hot water storgae (7) is connected by groove-type channel (12), the groove-type channel connection
The overflow area (20) of adjacent hot water storgae (7), multiple groove-type channels (12) are equally spaced between adjacent hot water storgae (7) side by side,
The side plate of the groove-type channel and the side plate of hot water storgae (7) form heat transfer zone (21), in the groove-type channel for surrounding the heat transfer zone
(12) overflow plate (13) are set on side plate and hot water storgae (7) long side plate, the slot bottom of the overflow plate, which is equipped with, makes overflow
Area (20) hot water flows to the drainage plate (14) of heat transfer zone (21), and described drainage plate one end is matched with finned tube (2), so that hot water
It is flowed from above to below under the effect of gravity along fin pipe outer wall in the form of a film, the finned tube and squared profile (22) are mutual
It welds and is fixed on supporting leg (23).
2. a kind of LNG gasification device of Hybrid Heating according to claim 1, it is characterized in that: the low side in convex overflow plate (8) two sides
Height be the 9/10 of intermediate flash height, flash and hot water storgae side are contour among the convex overflow plate, first-level buffer plate
(15) circle water hole diameter is the 15%~30% of water inlet pipe (6) internal diameter, and level 2 buffering plate (16) circle water hole diameter is first-level buffer plate
(15) the 50%~85% of circle water hole diameter, the diameter in three-level buffer board (17) circle water hole are level 2 buffering plate (16) circle water hole diameters
50%~85%, at the top of groove-type channel (12) with same level is at the top of hot water storgae (7), groove-type channel (12) depth is hot water
The spacing of the 1/2 of slot (7) depth, adjacent groove-type channel (12) is consistent with the spacing of adjacent hot water storgae (7), overflow plate (13)
Slot bottom is located under the low side in convex overflow plate (8) two sides, and drainage plate (14) is in hot water storgae (7) side plate top levels
30 ° of angles, finned tube (2) are made of four fins, and angle is 90 ° between fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910628007.0A CN110319345A (en) | 2019-07-12 | 2019-07-12 | A kind of LNG gasification device of Hybrid Heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910628007.0A CN110319345A (en) | 2019-07-12 | 2019-07-12 | A kind of LNG gasification device of Hybrid Heating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110319345A true CN110319345A (en) | 2019-10-11 |
Family
ID=68123209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910628007.0A Pending CN110319345A (en) | 2019-07-12 | 2019-07-12 | A kind of LNG gasification device of Hybrid Heating |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07332879A (en) * | 1994-06-06 | 1995-12-22 | Tokyo Gas Co Ltd | Double ktube open rack type vaporizer |
| CN201391745Y (en) * | 2009-04-29 | 2010-01-27 | 无锡特莱姆气体设备有限公司 | High flow-rate air-heated gasifier |
| CN102486259A (en) * | 2010-12-03 | 2012-06-06 | 新地能源工程技术有限公司 | Water bath vaporizer |
| JP5155066B2 (en) * | 2008-08-27 | 2013-02-27 | 株式会社神戸製鋼所 | Low temperature liquefied gas vaporizer |
| CN202992637U (en) * | 2012-12-28 | 2013-06-12 | 泉州市燃气有限公司 | LNG (Liquefied Natural Gas) water spraying type gasifying device |
| CN205278655U (en) * | 2015-12-30 | 2016-06-01 | 神华集团有限责任公司 | Buffer and have discharge valve of buffer |
| KR20180016704A (en) * | 2016-08-05 | 2018-02-19 | 강희자 | Liquefied natural gas open rack vaporizer |
| CN207975476U (en) * | 2018-01-22 | 2018-10-16 | 青岛科技大学 | A kind of LNG receiving stations ORV Simulation system of lunar rover |
| CN208107640U (en) * | 2018-04-24 | 2018-11-16 | 湖州诺诚低温设备有限公司 | A kind of combined type air temperature vaporizer |
-
2019
- 2019-07-12 CN CN201910628007.0A patent/CN110319345A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07332879A (en) * | 1994-06-06 | 1995-12-22 | Tokyo Gas Co Ltd | Double ktube open rack type vaporizer |
| JP5155066B2 (en) * | 2008-08-27 | 2013-02-27 | 株式会社神戸製鋼所 | Low temperature liquefied gas vaporizer |
| CN201391745Y (en) * | 2009-04-29 | 2010-01-27 | 无锡特莱姆气体设备有限公司 | High flow-rate air-heated gasifier |
| CN102486259A (en) * | 2010-12-03 | 2012-06-06 | 新地能源工程技术有限公司 | Water bath vaporizer |
| CN202992637U (en) * | 2012-12-28 | 2013-06-12 | 泉州市燃气有限公司 | LNG (Liquefied Natural Gas) water spraying type gasifying device |
| CN205278655U (en) * | 2015-12-30 | 2016-06-01 | 神华集团有限责任公司 | Buffer and have discharge valve of buffer |
| KR20180016704A (en) * | 2016-08-05 | 2018-02-19 | 강희자 | Liquefied natural gas open rack vaporizer |
| CN207975476U (en) * | 2018-01-22 | 2018-10-16 | 青岛科技大学 | A kind of LNG receiving stations ORV Simulation system of lunar rover |
| CN208107640U (en) * | 2018-04-24 | 2018-11-16 | 湖州诺诚低温设备有限公司 | A kind of combined type air temperature vaporizer |
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