CN205843449U - A kind of LNG vaporization device utilizing phase-change heat-exchange technology - Google Patents
A kind of LNG vaporization device utilizing phase-change heat-exchange technology Download PDFInfo
- Publication number
- CN205843449U CN205843449U CN201620727665.7U CN201620727665U CN205843449U CN 205843449 U CN205843449 U CN 205843449U CN 201620727665 U CN201620727665 U CN 201620727665U CN 205843449 U CN205843449 U CN 205843449U
- Authority
- CN
- China
- Prior art keywords
- heat
- lng
- transferring medium
- heat transferring
- heat exchange
- Prior art date
- 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.)
- Expired - Fee Related
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses a kind of LNG vaporization device utilizing phase-change heat-exchange technology, including the housing with the first heat transferring medium heat exchanging chamber, on the two side that described housing is corresponding, the through hole that at least one row is corresponding is offered respectively less than on the lower sides in the upper portion side wall of described first heat transferring medium heat exchanging chamber height 1/2nd and less than described first heat transferring medium heat exchanging chamber height 1/2nd, running through connection in upper through-hole has one end to be communicated with LNG import, the other end is communicated with the LNG heat exchange pipeline of LNG outlet, running through connection in lower through-hole has one end to be communicated with the second heat transferring medium import, the other end is communicated with the second heat transferring medium heat exchange pipeline of the second heat transferring medium outlet, some vertical fins the most each it are set with on the outer wall of wherein said LNG heat exchange pipeline and the second heat transferring medium heat exchange pipeline.This utility model solves problem that is too low due to LNG temperature and that cause heat transferring medium icing to cause carburator to vaporize penalty, and simple in construction.
Description
Technical field
This utility model relates to a kind of carburator, especially relate to a kind of LNG vaporization device utilizing phase-change heat-exchange technology and
Gasification method, belongs to technical field of heat exchangers.
Background technology
Along with global economy is fast-developing, Global Oil resource scarcity and problem of environmental pollution are the most serious so that burning
Property good, pollute little gas consumption sharp increase, be gaseous state under natural gas room temperature, be not easy to storage and long-distance transportation, because of
This is the most first transformed into the liquefied natural gas (LNG) of-163 DEG C, then carries out storing and long-distance transportation.But using LNG
Before, need to utilize vapourizing unit that the LNG that temperature is-163 DEG C is improved the natural gas (NG) to about 5 DEG C.
The carburator being presently used for LNG vaporization mainly includes with Types Below:
(1) open-frame type vaporizer, i.e. LNG are at the heat transfer Bottomhole pressure of this device, and pipe is outer seawater spraying device spray sea
Water is in heat-transfer pipe, it is achieved sea water exchanges with the heat of LNG；This apparatus structure is simple, and heat exchange volume is big, directly utilize sea water with
LNG carries out heat exchange, but owing to LNG heat transfer temperature difference in heat transfer process is relatively big, released cold quantity is more, is easily caused seawater icing,
Therefore this device vaporization efficency can not be protected with stability.
(2) there is the carburator of intermediate heat transfer media, i.e. LNG and carry out heat exchange, intermediate heat transfer media with intermediate heat transfer media
Heat exchange is carried out, owing to intermediate heat transfer media uses subzero medium, it is ensured that system is run with sea water (or other thermals source)
Stablize；But owing to the device for intermediate flow need to be increased so that apparatus structure is complicated.
(3) shell-and-tube carburator, though this carburator compact conformation, but owing to pipe shell type heat exchange is inefficient and thermal source flow
Relatively big, do not ensure that stablizing of LNG vaporization is carried out.
The patent of Application No. 200910307503.2 discloses the combined heat pipe exchanger of a kind of refrigeration technology field, should
If system is mainly made up of, wherein casing, dividing plate dry heat pipe and heat pipe fixed structure: the two ends of casing are correspondingly provided with sky respectively
So gas inlet ductwork, refrigerant outlet pipeline and refrigerant inlet pipeline, Liquid natural gas inlet pipeline, one end of dividing plate is solid
Surely being arranged between the Imported gas pipeline of box house one end and refrigerant outlet pipeline, the other end of dividing plate is fixedly installed
Between the refrigerant inlet pipeline and liquefied natural gas export pipeline of the box house other end, heat pipe fixed structure is fixedly installed
On dividing plate, heat pipe is connected with heat pipe fixed structure and perpendicular in dividing plate.Heat exchange process is divided into three by this utility model
Individual warm area, chooses the heat-pipe working medium of different boiling according to the requirement of each warm area operating temperature, in order to avoid because of operating temperature
Too low and cause the solidification of heat-pipe working medium, this technology solves LNG vaporization under the big temperature difference theoretically.But due in heat exchanger
Operating temperature can produce huge fluctuation along with the changes in flow rate of LNG vaporization amount and cold-producing medium, causes the warm area quilt divided in theory
Destroy so that the heat pipe in this operation temperature area makes it lose efficacy due to the limitation of working medium boiling point, it is impossible to carry out heat transmission, and then
Heat exchanger efficiency is made to reduce the vaporization affecting LNG.
The patent of Application No. 201310120847.9 discloses a kind of small liquid natural gas vaporizer, and its structure includes
Housing, housing is provided with LNG import, NG outlet, coolant import and refrigerant exit, is provided with and is connected with LNG import in housing
The inner tube connected, it is characterised in that be provided with sleeve pipe outside inner tube, the liquefied natural gas vaporization flowing through inner tube generates natural gas gas
Body, natural gas gas enters sleeve pipe, runs on as intermediate medium in the gap of inner tube and sleeve pipe formation, and is exported by NG defeated
Go out.But according to when running described by it be use will by the NG after pipe with coolant heat exchange temperature rise as middle coolant for again
Once carrying out heat exchange with LNG, owing to the release of LNG heat exchange cold is big, in the gap that inner tube and sleeve pipe are formed, NG is possible will be again
Once being cooled to LNG, whole process can not meet the requirement of LNG vaporization；If this system of LNG vaporization requirement need to be met in fortune
Have to the evaporating capacity of the NG growing amount and LNG with higher temperature and NG mate completely during row.But it is as described in this patent, real
In the operation of border, these two aspects conditions each other, if when LNG vaporization demand is higher, this system is big due to LNG stream amount, but NG exists
Around being in control shortage of heat to provide the vaporization of LNG, whole system will run, and if refrigerant temperature too low, it is ensured that no
The temperature requirements of NG, this system also cannot be properly functioning.And be provided with sleeve pipe in the invention, and use around pipe type heat transfer
Device, equipment is the hugest is but unable to reach corresponding heat exchange efficiency, and therefore in this utility model, the loss of carried cold energy less and is changed
The saying that the thermal efficiency is high is worth discussion.
Summary of the invention
The defect that this utility model limits to for the function existing for above-mentioned prior art, it is provided that one utilizes phase inversion
The LNG vaporization device of thermal technology and gasification method.
Keep vacuum state in vaporizer shell of the present utility model and be filled with the first heat transferring medium as working media.
When second heat transferring medium of high temperature flows through the second heat transferring medium heat exchange pipeline, with the first heat transferring medium heat exchange so that the first heat exchange
Medium vaporizes, liquid become gaseous state, moves to vaporizer shell top, and in LNG heat exchange pipeline under power effect floating life
LNG carries out heat exchange, after the first heat transferring medium after vaporization absorbs a large amount of colds that LNG is become gaseous state release by liquid, changes at LNG
Hot channel outside wall surface is condensed into liquid, under gravity, is again back to vaporizer shell bottom, re-starts new vaporization
Condensation process, and then realize LNG vaporization；Solved due to LNG temperature by the vaporization and condensation process utilizing the first heat transferring medium
Too low and cause heat transferring medium to freeze and cause the problem of carburator vaporization penalty, and structure is simpler.
In order to achieve the above object, this utility model adopts the following technical scheme that
A kind of LNG vaporization device utilizing phase-change heat-exchange technology, including having the housing 4 of the first heat transferring medium heat exchanging chamber 9, institute
State on the two side that housing 4 is corresponding, less than described first heat transferring medium heat exchanging chamber 9 height 1/2nd upper portion side wall on and
Corresponding less than offering at least one row respectively on the lower sides of described first heat transferring medium heat exchanging chamber 9 height 1/2nd
Through hole, running through connection in upper through-hole has one end to be communicated with LNG import 1, and the other end is communicated with the LNG heat exchange pipeline of LNG outlet 5
2, running through connection in lower through-hole has one end to be communicated with the second heat transferring medium import 6, and the other end is communicated with the second heat transferring medium and goes out
Second heat transferring medium heat exchange pipeline 7 of mouth 8, outside wherein said LNG heat exchange pipeline 2 and the second heat transferring medium heat exchange pipeline 7
Some vertical fins 3 the most each it are set with on wall.
Housing 4 first heat transferring medium heat exchanging chamber 9 intrinsic pressure described above is to be filled with submergence under conditions of 100-150Pa
Described second heat transferring medium heat exchange pipeline 7 and less than cavity volume 1/2 the first heat transferring medium.Described first heat transferring medium
For low boiling working fluid.Described low boiling working fluid is any one in R22, ethylene glycol and propane.
LNG heat exchange pipeline 2 described above and the spread pattern of the second heat transferring medium heat exchange pipeline 7 are cross arrangement or suitable
Row's arrangement；Described LNG heat exchange pipeline 2 and the second heat transferring medium heat exchange pipeline 7 are direct piping, spiral or circulating line.
Housing 4 described above is cuboid, square or ellipsoid.
The gasification method of a kind of LNG vaporization device utilizing phase-change heat-exchange technology of the present utility model, specifically changes from second
Second heat transferring medium of the high temperature that thermal medium inlet 6 enters flows through the second heat transferring medium heat exchange pipeline 7 and changes with the first heat transferring medium
The first heat transferring medium heat exchange in hot chamber 9 so that the first heat transferring medium vaporization, moves to first under power effect floating life and changes
LNG in the top of thermal medium heat exchanging chamber 9, with LNG heat exchange pipeline 2 carries out heat exchange, and the first heat transferring medium after vaporization absorbs LNG
After being become, by liquid, a large amount of colds that gaseous state discharges, it is condensed into liquid in LNG heat exchange pipeline 2 outside wall surface, under gravity,
Again it is back to the first heat transferring medium heat exchanging chamber 9 bottom, re-starts new vaporization and condensation process, and then realize LNG vaporization.
Compared with prior art, advantageous feature of the present utility model is:
Keep vacuum state in housing 4 and be filled with the first heat transferring medium so that the first heat transferring medium boiling point reduces, increasing and pass
Thermal driving force, enhanced heat exchange effect；Flexible arrangement can run through LNG heat exchange pipeline 2 and the second heat transferring medium heat exchanger tube of housing 4
Road 7, the mode utilizing the first heat transferring medium to undergo phase transition realizes evaporation and condensing heat-exchange；In LNG heat exchange pipeline 2 and the second heat exchange
The most each it is set with some vertical fins 3 on media for heat exchange pipeline 7 outer wall in order to make condensation water depart from time, plays strengthening
The purpose of heat exchange；This utility model vaporization efficency raising more than 30% and physical dimension compared with existing carburator reduce
50%, and structure is the simplest, by the vaporization and condensation process utilizing the first heat transferring medium can solve due to LNG temperature too low and
Cause the problem that heat transferring medium icing causes carburator vaporization penalty.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of this utility model patent,
Fig. 2 is the A-A profile of Fig. 1,
Fig. 3 is the B-B profile of Fig. 1,
In figure: 1, LNG import；2, LNG heat exchange pipeline；3, vertical fins；4, housing；5, NG outlet；6, the second heat exchange is situated between
Matter import；7, the second heat transferring medium heat exchange pipeline；8, the second heat transferring medium outlet；9, the first heat transferring medium heat exchanging chamber.
Detailed description of the invention
Below in conjunction with the accompanying drawings and detailed description of the invention, this utility model is described in further detail, but this utility model
Protection domain is not limited to the technical scheme that following embodiment, all employing equivalents or equivalent transformation form obtain, all in this reality
Within the scope of novel protected.
As shown in accompanying drawing 1 to Fig. 3, for a kind of LNG vaporization device utilizing phase-change heat-exchange technology of this utility model embodiment,
Including having the housing 4 of the first heat transferring medium heat exchanging chamber 9, on the two side that described housing 4 is corresponding, less than described first heat exchange
In the upper portion side wall of media for heat exchange chamber 9 height 1/2nd and less than described first heat transferring medium heat exchanging chamber 9 height 1/2nd
Lower sides on offer two rows respectively, often 5 corresponding through holes of seniority among brothers and sisters, extending through connection in the through hole of 10, top has
One end is communicated with LNG import 1, and the other end is communicated with the LNG heat exchange pipeline 2 of LNG outlet 5, extends through in the through hole of 10, bottom
Connecting has one end to be communicated with the second heat transferring medium import 6, and the other end is communicated with the second heat transferring medium of the second heat transferring medium outlet 8
Heat exchange pipeline 7, wherein said LNG heat exchange pipeline 2 and the outer wall of the second heat transferring medium heat exchange pipeline 7 are the most each set with
There are some vertical fins 3.
This utility model for ensureing carburator heat transfer efficient, in housing 4 first heat transferring medium heat exchanging chamber described above 9
Pressure is to be filled with the second heat transferring medium heat exchange pipeline 7 described in submergence under conditions of 100-150Pa and less than cavity volume
First heat transferring medium of 1/2.Described first heat transferring medium is low boiling working fluid.Described low boiling working fluid is R22, ethylene glycol and
Any one in propane.
LNG heat exchange pipeline 2 described above and the spread pattern of the second heat transferring medium heat exchange pipeline 7 are in-line arrangement arrangement；Institute
The LNG heat exchange pipeline 2 stated and the second heat transferring medium heat exchange pipeline 7 are direct piping.
Housing 4 described above is cuboid.Described LNG heat exchange pipeline 2 and the second heat transferring medium heat exchange pipeline 7 and LNG
Import 1 and LNG outlet 5, the second heat transferring medium import 6 and the second heat transferring medium outlet 8 are with the connection of housing 4 and are welded to connect
As shown in accompanying drawing 1 to Fig. 3, for a kind of LNG vaporization device utilizing phase-change heat-exchange technology of this utility model embodiment
Gasification method, the second heat transferring medium of high temperature specifically entered from the second heat transferring medium import 6 flows through the second heat transferring medium
The first heat transferring medium heat exchange in heat exchange pipeline 7 and the first heat transferring medium heat exchanging chamber 9 so that the first heat transferring medium vaporization,
Under power effect floating life, move to the top of the first heat transferring medium heat exchanging chamber 9, carry out heat exchange with the LNG in LNG heat exchange pipeline 2,
After the first heat transferring medium absorption LNG after vaporization is become, by liquid, a large amount of colds that gaseous state discharges, outside LNG heat exchange pipeline 2
Wall is condensed into liquid, under gravity, is again back to the first heat transferring medium heat exchanging chamber 9 bottom, re-starts new vapour
Change condensation process, and then realize LNG vaporization.
These are only embodiment of the present utility model, it describes more concrete and detailed, but can not therefore understand
For the restriction to this utility model the scope of the claims.It should be pointed out that, for the person of ordinary skill of the art, do not taking off
On the premise of this utility model is conceived, the technical scheme that all employing equivalents or equivalent transformation are formed, belong to this practicality
The protection domain of novel requirement.
Claims (6)
1. utilize a LNG vaporization device for phase-change heat-exchange technology, including having the housing (4) of the first heat transferring medium heat exchanging chamber (9),
It is characterized in that: on the two side that described housing (4) is corresponding, less than described first heat transferring medium heat exchanging chamber (9) highly two points
One of upper portion side wall on and less than described first heat transferring medium heat exchanging chamber (9) highly 1/2nd lower sides on open respectively
Being provided with the through hole that at least one row is corresponding, running through connection in upper through-hole has one end to be communicated with LNG import (1), and the other end connects
Having the LNG heat exchange pipeline (2) of LNG outlet (5), running through connection in lower through-hole has one end to be communicated with the second heat transferring medium import
(6), the other end is communicated with the second heat transferring medium heat exchange pipeline (7) of the second heat transferring medium outlet (8), and wherein said LNG changes
Some vertical fins (3) the most each it are set with on the outer wall of hot channel (2) and the second heat transferring medium heat exchange pipeline (7).
The LNG vaporization device utilizing phase-change heat-exchange technology the most according to claim 1, it is characterised in that: described housing (4)
One heat transferring medium heat exchanging chamber (9) intrinsic pressure is to be filled with the second heat transferring medium heat exchange described in submergence under conditions of 100-150Pa
Pipeline (7) and less than cavity volume 1/2 the first heat transferring medium.
The LNG vaporization device utilizing phase-change heat-exchange technology the most according to claim 2, it is characterised in that: described first heat exchange
Medium is low boiling working fluid.
The LNG vaporization device utilizing phase-change heat-exchange technology the most according to claim 3, it is characterised in that: described low boiling
Working medium is any one in R22, ethylene glycol and propane.
The LNG vaporization device utilizing phase-change heat-exchange technology the most according to claim 1, it is characterised in that: described LNG heat exchange
The spread pattern of pipeline (2) and the second heat transferring medium heat exchange pipeline (7) is cross arrangement or in-line arrangement arrangement；Described LNG heat exchange
Pipeline (2) and the second heat transferring medium heat exchange pipeline (7) are direct piping, spiral or circulating line.
The LNG vaporization device utilizing phase-change heat-exchange technology the most according to claim 1, it is characterised in that: described housing (4) is
Cuboid, square or ellipsoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620727665.7U CN205843449U (en) | 2016-07-11 | 2016-07-11 | A kind of LNG vaporization device utilizing phase-change heat-exchange technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620727665.7U CN205843449U (en) | 2016-07-11 | 2016-07-11 | A kind of LNG vaporization device utilizing phase-change heat-exchange technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205843449U true CN205843449U (en) | 2016-12-28 |
Family
ID=57618470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620727665.7U Expired - Fee Related CN205843449U (en) | 2016-07-11 | 2016-07-11 | A kind of LNG vaporization device utilizing phase-change heat-exchange technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205843449U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017168A (en) * | 2016-07-11 | 2016-10-12 | 江苏科技大学 | LNG vaporizer utilizing phase-change heat transfer technology and vaporization method |
-
2016
- 2016-07-11 CN CN201620727665.7U patent/CN205843449U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017168A (en) * | 2016-07-11 | 2016-10-12 | 江苏科技大学 | LNG vaporizer utilizing phase-change heat transfer technology and vaporization method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106017168A (en) | LNG vaporizer utilizing phase-change heat transfer technology and vaporization method | |
| US20090211727A1 (en) | heat tube device utilizing cold energy and application thereof | |
| CN110360769B (en) | Heat pump system with phase-change energy tower and heat exchange method thereof | |
| CN206626397U (en) | LNG (liquefied Natural gas) cold energy utilization system for workshop cooling | |
| CN105115083B (en) | Gravity assisted heat pipe type earth cooling source cold storage system and cooling-water machine set | |
| CN105509523A (en) | LNG carburetor adopting heat pipe | |
| CN104896302B (en) | LNG vaporizer with step vaporization technology | |
| CN102032825A (en) | Heat exchange tube for evaporator and evaporator formed by same | |
| CN204693025U (en) | A kind of LNG vaporizer adopting step vaporisation techniques | |
| CN206514443U (en) | Energy supplying system based on low valley power storage | |
| CN201858821U (en) | Refrigerant evaporation cooler | |
| CN110360852B (en) | Phase-change energy tower and heat exchange method thereof | |
| CN202329320U (en) | Heat pipe evaporation cooler | |
| CN209371561U (en) | A kind of superhigh temperature non-azeotropic working medium heat pump unit | |
| CN205843449U (en) | A kind of LNG vaporization device utilizing phase-change heat-exchange technology | |
| CN105674783B (en) | Utilize the jet-propelled LNG vaporization system of geothermal energy | |
| CN103411350B (en) | Solar cooling plate based combined cooling and heating system | |
| CN210532739U (en) | Heat pump system with phase change energy tower | |
| CN106017169B (en) | A kind of LNG vaporization device and implementation method using self-loopa intermediate medium | |
| CN201852397U (en) | Improved heat-exchange device of evaporating cold and defrosting water | |
| CN104315635B (en) | Medium- and small-sized high-temperature-difference double-working-condition dynamic ice-slurry cold storage air conditioner | |
| CN207006903U (en) | condenser and heat energy utilization system | |
| CN202361704U (en) | Falling-film evaporator | |
| CN204176831U (en) | The dynamic fluid state ice ice-storage air-conditioning of middle-size and small-size large temperature difference Double-working-condition | |
| CN210570083U (en) | Phase-change energy tower |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161228 Termination date: 20180711 |