CN207407068U - A kind of LNG gasification system - Google Patents
A kind of LNG gasification system Download PDFInfo
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- CN207407068U CN207407068U CN201721379588.1U CN201721379588U CN207407068U CN 207407068 U CN207407068 U CN 207407068U CN 201721379588 U CN201721379588 U CN 201721379588U CN 207407068 U CN207407068 U CN 207407068U
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Abstract
The utility model discloses a kind of LNG gasification devices, are designed to improve LNG gasification efficiency and gasification security, including media expansion tank, centrifugal pump, media heat exchanger and the LNG gasification device sequentially connected using pipeline head and the tail；Heat transferring medium in the media expansion tank is delivered to the media heat exchanger by the centrifugal pump；The media heat exchanger is used to heat the heat transferring medium；The close-coupled micro-channel heat exchanger that the LNG gasification device is integrally formed, the LNG gasification device make the LNG gasification for the heat transferring medium and LNG to be made to carry out heat exchange.LNG gasification system gasification provided by the utility model is efficient, and floor space is small and security performance is high, and the gasification that can be preferably applicable in LNG high-pressure fuel gas uses.
Description
Technical field
The utility model is related to liquefied natural gas (Liquefied Natural Gas, LNG) gasification technology field, especially
It is related to a kind of LNG gasification system.
Background technology
With the getting worse of atmosphere pollution, the control that the gas of ship is discharged in the whole world is increasingly strict, and ship uses
Natural gas can reduce more than 30% carbon emission and the discharge of nitrogen oxides, more than 98% sulfide emission and 30% or so
Fuel cost, therefore, it is energy-saving and emission-reduction, raising transport benefits effective measures the most direct that ship, which uses natural gas instead as fuel,.
LNG is -160 ° or so of the liquid that will be formed after the pressurization cooling of gaseous natural gas, and volume is only six percentages of liquified natural gas
One of.With the continuous propulsion that LNG double fuels cargo ship is applied, the double combustions of the relatively low two-stroke low speed of the energy consumption developed at this stage
Expect diesel engine, the MEGI types host developed such as MAN B＆W companies, it is necessary to supply gas pressure for 30Mpa or so, and LNG fuel needs
To pass through gasification heating, the needs of cabin power set could be met by being changed into 0 ° or more of gas from -160 ° or so of liquid.
Therefore, how in the case where ensureing fuel gas High voltage output, safely and effectively gasified to LNG, so that ship uses, be
Each ship business men more concern.
Prior art discloses a kind of high-pressure gas feed system of Ship Power Equipment, the LNG gasification system used
Two water circulating pumps in parallel, two heat exchangers and one in parallel are sequentially connected including a swelling water tank and with swelling water tank
A electric heater, the outlet of electric heater are sequentially connected the anti-icing fluid import of low pressure natural gas heater and LNG gasification device, LNG
Gasifier is connected in series with high-pressure natural gas heater, and the anti-icing fluid of low pressure natural gas heater and high-pressure natural gas heater goes out
Mouth is connected with the import of water circulating pump, the circulating hot water piping connection of heat exchanger and power set.
Above-mentioned LNG gasification system structure is complicated, and due to using case type LNG gasification device, heat exchange efficiency is low, size and again
It measures larger, is unfavorable for LNG gasification system and is arranged in the limited LNG double fuel cargo ships of floor space；Simultaneously as case type
The welding of LNG gasification device generally use is made, and high voltage performance is poor, easily generates LNG leakages, causes the safety of flammable gas explosion
Risk；Furthermore LNG also needs to be used for after gasification the use of dynamical system, the fuel gas after gasification by pressurized, heated
Fuel conduit cannot be directly supplied in for directly using.
Utility model content
The utility model provides a kind of LNG high-pressure fuel gas gasification system, to improve LNG gasification efficiency, reduce LNG gasification
System complexity and raising LNG gasification security of system.
In order to achieve the above objectives, the utility model uses following technical proposals：
A kind of LNG gasification system, including media expansion tank, centrifugal pump, the media for heat exchange sequentially connected using pipeline head and the tail
Device and LNG gasification device；
Heat transferring medium in the media expansion tank is delivered to the media heat exchanger by the centrifugal pump；
The media heat exchanger is used to heat the heat transferring medium；
The close-coupled micro-channel heat exchanger that the LNG gasification device is integrally formed, the LNG gasification device are used to make described change
Thermal medium and LNG carry out heat exchange, make the LNG gasification.
Preferably, the LNG gasification device includes at least one cold medium plate and at least one thermal medium plate, described cold
Dielectric-slab on piece is etched with cold medium passage, and hot media channel is etched on the thermal medium plate.
Preferably, the cold medium plate and the thermal medium plate are equipped with multiple, multiple cold medium plates and
Multiple thermal medium plates are alternately superimposed.Cold medium plate and thermal medium plate are alternately superimposed, and can improve hot and cold medium
Heat exchange efficiency.
Preferably, the LNG gasification device include heat exchange entrance, heat exchange outlet, LNG entrances and LNG outlet, it is described exchange heat into
Mouth connects the media heat exchanger, and the heat exchange outlet connects the media expansion tank；It the heat exchange entrance and described exchanges heat out
The heat transferring medium manifold for collecting the heat transferring medium is both provided at mouthful, the LNG entrances and the LNG exits are equal
It is provided with the cold medium manifold for collecting the LNG.
Preferably, the heat transferring medium is the glycol water that volume fraction is 50%.Since glycol water has
There is relatively low freezing point, can prevent from cooling down icing in LNG heat transfer process, cause the damage of LNG gasification device failure or LNG gasification system
It is bad.
Preferably, the heat transferring medium entrance of the media heat exchanger and heat transferring medium outlet are connected respectively the centrifugation
Pump and the LNG gasification device；The media heat exchanger further include the heating medium inlet that flows in and out for heat medium and
Crude product input, the heat medium flow into heating medium inlet by heating pipe, and the is provided on the heating pipe
One control valve.First control valve is for controlling the flow into the heat medium of media heat exchanger, so as to which heat transferring medium be controlled to change
Temperature after heat.
Preferably, it is connected with the first side pipeline between the heat transferring medium entrance and heat transferring medium outlet, described the
The second control valve is provided on the pipeline of one side.Is provided on the media heat exchanger and the connecting line of the LNG gasification device
One temperature controller, first temperature controller connect and control first control valve and the second control valve respectively.Using the first temperature control
The heat exchange medium temperature of device detection outflow media heat exchanger, so as to adjust the first control valve and the second control valve, can realize pair
The temperature realization for flowing into the heat transferring medium of LNG gasification device is more accurately controlled adjusting, ensures at the temperature of LNG gasification device
It in suitable scope, avoids heat exchange medium temperature too low, heat transferring medium is made to solidify icing effect LNG gasification device in heat transfer process
Performance or because heat exchange medium temperature is excessively high, makes the fuel gas temperature after LNG gasification excessively high, influences the use of fuel gas.
Preferably, the second side pipeline is connected between the media heat exchanger and the media expansion tank, by the of described second
The intersection of connecting line between pipeline and the media heat exchanger and the LNG gasification device is provided with triple valve.Using three
Port valve can control the heat transferring medium flow into LNG gasification device, so as to fulfill the control to the temperature after LNG gasification.
Preferably, the fuel gas pipeline of the fuel gas outflow after the LNG gasification device is connected with for LNG gasification, the combustion
The second temperature controller is provided on air pipe, second temperature controller connects the triple valve.It is detected and exported by the second temperature controller
The gas phase temperature of fuel gas, and detection signal is fed back into three-way valve, so as to control the heat exchanging medium flow into LNG gasification device
Amount so as to more accurately control the temperature of the fuel gas after LNG gasification, is used directly for the fuel gas after LNG gasification
Fuel machine system uses.
Preferably, the LNG flows into the LNG gasification device by LNG entrance pipes, is set on the LNG entrance pipes
There is flowmeter, the flowmeter connects the triple valve.It when LNG stream amount suddenly change, is detected, believed in advance by flowmeter
Number feed back to triple valve, triple valve is opened big or reduces heat transferring medium flow into LNG gasification device in advance, to control outlet fuel
The gas phase temperature of gas avoids LNG stream amount from changing, and triple valve has little time to react, and causes fuel gas gas phase temperature too low or excessively high, no
Meet temperature control requirement.
The beneficial effects of the utility model are：
By using close-coupled microchannel LNG gasification device, heat transfer efficiency is high, and can effectively reduce the size of gasifier, from
And the weight and space of entire LNG gasification system are reduced, overall cost is reduced, meets LNG double fuel cargo ships
The arrangement requirement of the deck confined space；
Since LNG gasification device is there is no welding point, higher pressure can be born, can preferably be suitable for LNG high
The gasification of pressurized fuel gas will not generate LNG leakages, cause the security risk of flammable gas explosion, and the fuel under high pressure after gasification
Gas can be directly used for power set use；
Whole system is simple in structure, easily operated.
Description of the drawings
Fig. 1 is the schematic diagram that the utility model implements the LNG gasification system provided；
Fig. 2 is the structure diagram of LNG gasification device provided by the utility model；
Fig. 3 is the top view of LNG gasification device in Fig. 2；
Fig. 4 is A-A sectional views in Fig. 2；
Fig. 5 is B-B sectional views in Fig. 3；
Fig. 6 is the linear type cold medium passage of the LNG gasification device of the utility model and linear type hot media channel
Schematic diagram；
Fig. 7 be the LNG gasification device of the utility model " Z " font cold medium passage and linear type hot media channel one
Kind schematic diagram；
Fig. 8 be the LNG gasification device of the utility model " Z " font cold medium passage and linear type hot media channel it is another
A kind of schematic diagram；
Fig. 9 is the multipaths cold medium passage of the LNG gasification device of the utility model and " one " font hot media channel shows
It is intended to；
Figure 10 is the signal of the multipaths cold medium passage and multipaths hot media channel of the LNG gasification device of the utility model
Figure；
It is marked in figure as follows：
1- media expansion tanks；2- centrifugal pumps；3- media heat exchangers；4-LNG gasifiers；41- heat exchange core bodies；42- heat exchange is situated between
Matter manifold；43- cold medium manifolds；44- connecting flanges；45- hot media channels；46- cold medium passages；5- first is controlled
Valve；The second control valves of 6-；7- triple valves；The first temperature controllers of 8-；The second temperature controllers of 9-；The first sides of 10- pipeline；The second sides of 11- pipe
Road；12- flowmeters；
A1- heat transferring medium entrances；A2- heat transferring mediums export；B1- heating medium inlets；B2- Crude product inputs；C1- is changed
Hot entrance；C2- heat exchange outlet；D1-LNG entrances；D2-LNG is exported.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model rather than the restriction to the utility model.It further needs exist for
It is bright, part relevant with the utility model rather than entire infrastructure are illustrated only for ease of description, in attached drawing.
As shown in Figure 1, the utility model embodiment provides a kind of LNG gasification system, including using pipeline head and the tail sequentially
Media expansion tank 1, centrifugal pump 2, media heat exchanger 3 and the LNG gasification device 4 of connection.Media expansion tank 1 is situated between for caching heat exchange
Matter avoids heat transferring medium volume change caused by being heated or cooled during pipeline flow that pipeline pressure is caused to change
Greatly, a series of danger such as pipeline breaking are triggered.Media expansion tank 1 includes for the outlet of heat transferring medium outflow and is situated between for exchanging heat
The entrance of matter reflux, middle outlet connection centrifugal pump 2, entrance connection LNG gasification device 4.Centrifugal pump 2 is used for media expansion tank 1
In heat transferring medium be delivered to media heat exchanger 3, and centrifugal pump 2 has stable flow and lift, makes the gas of LNG gasification system
Change process can be carried out continuously.
Since the temperature of LNG is at -160 ° or so, and the gas that it is 45 ± 10 DEG C that LNG, which needs to gasify, could meet cabin and move
The needs of power apparatus, thus it is unsuitable excessively high with the solidification point of the LNG heat transferring mediums to exchange heat, and the solidification point of heat transferring medium is most
Well less than 0 °, avoid heat transferring medium and in LNG heat transfer process, heat transferring medium solidification freezes, to LNG gasification device 4 and entire LNG gas
Change system damages, such as can be propane, glycol water.In the present embodiment, heat transferring medium is preferably ethylene glycol
Aqueous solution, ethylene glycol proportioning are 50%, since glycol water has relatively low freezing point, are avoided directly using water and LNG
The risk of inner icing caused by gasifier 4 exchanges heat can preferably meet the needs with LNG heat exchange.
Media heat exchanger 3 is can be shell-and-tube heat exchanger or brazing plate type heat exchanger etc., and preferably brazing-sheet type changes
Hot device, while heat transferring medium heating is met, to reduce the volume of media heat exchanger 3, so as to reduce entire LNG gasification system
Floor space.Media heat exchanger 3 include for heat transferring medium by heat transferring medium entrance a1 and heat transferring medium export a2, with
And for heating heating medium inlet b1 and the Crude product input b2 that the heat medium of heat transferring medium circulates, wherein heat medium
Steam, hot water or conduction oil can be selected.The temperature of the heat transferring medium of media heat exchanger 3 is flowed out in order to control, using dividing formula control
Method controls the heating medium flow and heat transferring medium flow that flow into media heat exchanger 3：It is flowed into for heat medium
The first control valve 5 is provided on the heating pipe of heating medium inlet b1；In heat transferring medium entrance a1 and heat transferring medium outlet a2
Between be provided with the first side pipeline 10, the second control valve 6 is provided on the first side pipeline 10；In media heat exchanger 3 and LNG gas
Change and be provided with the first temperature controller 8 between the connecting line of device 4, the first temperature controller 8 respectively with the first control valve 5 and the second control valve
6 connections；The temperature of the heat transferring medium of first temperature controller 8 detection outflow media heat exchanger 3, when the temperature of heat transferring medium is less than or high
When predetermined value, the first control valve 5 is controlled to adjust opening degree first, increase the flow of the heat transferring medium of inflow media heat exchanger 3
Big or reduction；When the opening degree of the first control valve 5 reaches to greatest extent, if the temperature of heat transferring medium is still below or higher than predetermined
Value, then the second control valve 6 of the first temperature controller 8 control adjusting opening degree, changes the flow that heat transferring medium flows into the first side pipeline 10,
Correspondingly change the flow that heat transferring medium flows into media heat exchanger 3.It, can be accurately by using formula control method is divided
The temperature of the heat transferring medium of control outflow media heat exchanger 3, makes the heat transferring medium of inflow LNG gasification device 4 have suitable temperature,
Preferably, flow out media heat exchanger 3 heat exchange medium temperature should be less than LNG gasification after fuel gas maximum temperature, prevent through
After heat transferring medium heat exchange, the temperature of the fuel gas after LNG gasification is excessively high, influences the use of fuel gas.
LNG gasification device 4 includes the heat exchange entrance c1 for flowing into and flowing out for heat transferring medium and heat exchange outlet c2 and is used for
LNG stream enters LNG entrances d1 and LNG the outlet d2 gone out with LNG gasification post fuel air-flow.The temperature of LNG gasification post fuel gas in order to control
Degree is provided with the second side pipeline 11, media heat exchanger 3 and the company of LNG gasification device 4 between heat exchange entrance c1 and heat exchange outlet c2
The intersection for taking over road and the second side pipeline 11 is provided with triple valve 7, and triple valve 7 flows into LNG gasification device 4 and inflow for controlling
The heat transferring medium flow of second side pipeline 11.
It is controlled for the temperature to the fuel gas after LNG gasification, the gas phase temperature of fuel gas is made to meet fuel system
It uses, the second temperature controller 9 is provided in the gas pipeline for the fuel gas outflow after LNG gasification, after detecting gasification
Fuel gas temperature.Gas pipeline is connected with the LNG outlets d2 of LNG gasification device 4, and the second temperature controller 9 connection triple valve 7 will
The temperature signal of detection passes to triple valve 7, to control the folding of triple valve 7, so as to which heat transferring medium be controlled to flow into LNG gasification device
4 uninterrupted.Flowmeter 12 is provided on the LNG inlet ducts for flowing into LNG entrances d1, LNG gasification is flowed into for detecting
The LNG stream amount of device 4, flowmeter 12 connect triple valve 7：When LNG stream amount increases or reduces suddenly, flowmeter 12 can be examined in advance
The changes in flow rate for surveying LNG simultaneously feeds back to signal in triple valve 7, and triple valve 7 is opened big or opened small into LNG gasification device 4 in advance
Heat transferring medium flow to control the meteorological temperature of outlet fuel gas, prevents LNG stream amount suddenly change, and triple valve 7 has little time instead
Should, cause fuel gas gas phase temperature too high or too low, be unsatisfactory for temperature control requirement.
In the present embodiment, temperature of the LNG after heat transferring medium exchanges heat is about between 35 ° to 55 °, the combustion after LNG gasification
The maximum temperature of gas is expected for 53 ° or so, so that the fuel gas after gasification enters fuel gas pipe-line system for using, it is after cooling
Heat transferring medium continues cycling through use back to media expansion tank 1, to form the cycling of a closing, is carried out continuously LNG gasification.
As shown in Fig. 2, above-mentioned LNG gasification device 4 is close-coupled micro-channel heat exchanger, wherein including several cold medium plates
The heat exchange core body 41 to be formed is superimposed with several thermal medium plates, cold medium plate and thermal medium plate all can be one or more
It is a, and when cold medium plate and thermal medium plate have multiple, cold medium plate and thermal medium plate can be folded with arbitrary form
Add, but preferably cold medium plate and thermal medium plate are alternately superimposed one by one, to improve heat exchange efficiency.Cold medium plate and heat are situated between
Scutum piece material is identical, and is combined together by diffusion welding (DW), does not add welding material, there is no welding point, therefore can hold
By high pressure, such as the pressed gas of 30MPa, LNG gasification system is enable preferably to adapt to the gasification of LNG high-pressure fuel gas.
Every layer of cold medium plate of LNG gasification device 4 is etched with small parallel cold medium passage 46, every layer of thermal medium
Small, parallel hot media channel 45 is etched on plate.The cross section shape of cold medium passage 46 and hot media channel 45
Shape can be the shapes such as rectangle, semicircle, half elliptic, as Fig. 4 and Fig. 5 be when cold medium passage 46 and hot media channel 45
When cross section is semicircle, the drawing in side sectional elevation of heat exchange core body 41 shows the cross section of hot media channel 45, heat exchange core body 41
Profilograph shows the cross section of cold medium passage 46.
The hot media channel 45 on cold medium passage 46 and thermal medium plate on cold medium plate can be there are many runner
Form and a variety of flow directions, as shown in Fig. 6-Figure 10, (a) represents the cold medium passage on cold medium plate in wherein Fig. 6-10
Figure, (b) represents the hot media channel figure on thermal medium plate.In figure 6, cold medium passage 46 and hot media channel 45 are
Linear type runner, and the media flow direction of two passages is staggeredly flowed to be orthogonal；In figures 7 and 8, cold medium is led to
Road 46 is " Z " font runner, hot media channel 45 is linear type runner, but the flow direction of two runners is direction phase in Fig. 7
Anti- counter-current flow, the flow direction of two runners is the identical co-current flow in direction in Fig. 8；In fig.9, cold media flow channel 46 is
Multipaths runner, hot media channel 45 are linear type runner, and the whole circulating direction of two runners is the opposite adverse current in direction
Flowing；In Fig. 10, cold media flow channel 46 and heat medium flow channel 45 are multipaths runner, and circulating direction is that direction is opposite
Counter-current flow.Fig. 6-Figure 10 is only the flow channel shape and flow direction of hot media channel 45 and cold medium passage 46 in the present embodiment
Part signal, the runner form of hot media channel 45 and cold medium passage 46 can be respectively other shapes, such as " one " word
Shape, " Z " font, " L " font, any one or a few combination of shapes of "U" shaped or multipaths runner, or identical
A kind of shape or various shapes combination, wherein multipaths runner is also not necessarily limited to the multipaths runner shown in Fig. 9 and Figure 10
One kind, have many places bending circulation runner can be considered multipaths runner.And when passage baffling number it is more, closer to
Countercurrent flow, heat exchange efficiency is also higher, but pressure drop is also bigger, and therefore, the fluid passage selection of heat transferring medium according to heat exchange because imitating
Rate, fluid pressure drop and the combined factors such as dielectric-slab chip size and quantity consider to determine.Hot media channel 45 and cold medium passage
46 runner circulating direction can should combine hot media channel 45 and cold medium passage 46 with selected as cross-current, fair current or adverse current
Flow channel shape and determine.
Heat exchange entrance c1 and heat exchange outlet c2 are provided with thermal medium manifold 42, heat transferring medium flows into thermal medium manifold
42 collect after flow into each layer thermal medium plate, after the hot media channel 45 on each layer thermal medium plate flow into heat exchange outlet c2 at
Thermal medium manifold 42 in, flow downstream piping system after collecting；Cold medium is provided at LNG entrances d1 and LNG outlet d2
Manifold 43, LNG stream flows into each layer cold medium plate after entering the cold medium manifold 43 at LNG entrances d1, through each layer cold medium
It is flowed into after cold medium passage 46 on plate in the cold medium manifold 43 at LNG outlets d2, fuel gas pipeline is flowed into after collecting.For
Each medium inlet, outlet is made to be connected with each pipeline more convenient, be both provided with and take over and connecting flange in medium inlet, exit
44.LNG gasification system provided by the utility model can make by the LNG of high pressure low temperature from predetermined temperature is heated to through LNG gasification
Fuel gas afterwards can be directly practical into fuel under high pressure pipeline system, meets the requirement of generator fuel gas temperature and pressure.And
Since LNG gasification device 4 employs close-coupled micro-channel heat exchanger, heat transfer efficiency is high, and can effectively reduce the size of gasifier, from
And the weight and space of entire LNG gasification system are reduced, overall cost is reduced, meets LNG double fuel cargo ships
The arrangement requirement of the deck confined space；Since LNG gasification device 4 is there is no welding point, higher pressure can be born, it can be compared with
It is suitable for the gasification of LNG high-pressure fuel gas well, LNG leakages will not be generated, causes the security risk of flammable gas explosion；Together
When, whole system is simple in structure, easily operated.
Note that it above are only the preferred embodiment of the utility model and institute's application technology principle.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, can carry out for a person skilled in the art various bright
Aobvious variation is readjusted and substituted without departing from the scope of protection of the utility model.Therefore, although passing through above example
The utility model is described in further detail, but the utility model is not limited only to above example, is not departing from
In the case that the utility model is conceived, other more equivalent embodiments can also be included, and the scope of the utility model is by appended
Right determine.
Claims (10)
1. a kind of LNG gasification system, which is characterized in that including using pipeline head and the tail sequentially connect media expansion tank (1), centrifugation
Pump (2), media heat exchanger (3) and LNG gasification device (4)；
The centrifugal pump (2) is used to the heat transferring medium in the media expansion tank (1) being delivered to the media heat exchanger (3)；
The media heat exchanger (3) is used to heat the heat transferring medium；
The close-coupled micro-channel heat exchanger that the LNG gasification device (4) is integrally formed, the LNG gasification device (4) are described for making
Heat transferring medium and LNG carry out heat exchange, make the LNG gasification.
2. LNG gasification system as described in claim 1, which is characterized in that the LNG gasification device (4) includes at least one cold
Medium plate and at least one thermal medium plate are etched with cold medium passage (46), the thermal medium on the cold medium plate
Hot media channel (45) is etched on plate.
3. LNG gasification system as claimed in claim 2, which is characterized in that the cold medium plate and the thermal medium plate
It is equipped with multiple, multiple cold medium plates and the alternately superposition of multiple thermal medium plates.
4. LNG gasification system as claimed in claim 3, which is characterized in that the LNG gasification device (4) includes heat exchange entrance
(c1), heat exchange outlet (c2), LNG entrances (d1) and LNG outlets (d2), the heat exchange entrance (c1) connect the media heat exchanger
(3), the heat exchange outlet (c2) connects the media expansion tank (1)；
The heat exchange for being both provided with to collect the heat transferring medium at the heat exchange entrance (c1) and the heat exchange outlet (c2) is situated between
Cold Jie for collecting the LNG is both provided at matter manifold (42), the LNG entrances (d1) and LNG outlets (d2)
Matter manifold (43).
5. LNG gasification system as described in claim 1, which is characterized in that the heat transferring medium is that volume fraction is 50%
Glycol water.
6. such as claim 1-5 any one of them LNG gasification systems, which is characterized in that the heat exchange of the media heat exchanger (3)
Medium inlet (a1) and heat transferring medium outlet (a2) are connected respectively the centrifugal pump (2) and the LNG gasification device (4)；
The media heat exchanger (3) further includes the heating medium inlet (b1) flowed in and out for heat medium and heat medium
It exports (b2), the heat medium flows into heating medium inlet (b1) by heating pipe, and the is provided on the heating pipe
One control valve (5).
7. LNG gasification system as claimed in claim 6, which is characterized in that the heat transferring medium entrance (a1) and the heat exchange
The first side pipeline (10) is connected between media outlet (a2), the second control valve (6) is provided on first side pipeline (10)；
It is provided with the first temperature controller (8) on the connecting line of the media heat exchanger (3) and the LNG gasification device (4), described
One temperature controller (8) connects and controls first control valve (5) and the second control valve (6) respectively.
8. such as claim 1-5 any one of them LNG gasification systems, which is characterized in that the media heat exchanger (3) and described
Be connected with the second side pipeline (11) between media expansion tank (1), second side pipeline (11) and the media heat exchanger (3) and
The intersection of connecting line between the LNG gasification device (4) is provided with triple valve (7).
9. LNG gasification system as claimed in claim 8, which is characterized in that the LNG gasification device (4) is connected with for LNG gas
The fuel gas pipeline of fuel gas outflow after change, is provided with the second temperature controller (9), second temperature controller on the fuel gas pipeline
(9) triple valve (7) is connected.
10. LNG gasification system as claimed in claim 9, which is characterized in that the LNG passes through described in the inflow of LNG entrance pipes
LNG gasification device (4), flowmeter (12) is provided on the entrance pipe, and the flowmeter (12) connects the triple valve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201721379588.1U CN207407068U (en) | 2017-10-24 | 2017-10-24 | A kind of LNG gasification system |
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| CN201721379588.1U CN207407068U (en) | 2017-10-24 | 2017-10-24 | A kind of LNG gasification system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442679A (en) * | 2019-08-30 | 2020-07-24 | 江苏科技大学 | Novel F L NG heat exchanger with S-shaped channel |
| CN111692524A (en) * | 2020-06-19 | 2020-09-22 | 江苏科技大学 | LNG regasification experimental system and experimental method |
| CN113137319A (en) * | 2021-04-30 | 2021-07-20 | 招商局邮轮研究院(上海)有限公司 | Adopt boats and ships dual-fuel engine air supply system of PCHE low temperature heat exchanger |
-
2017
- 2017-10-24 CN CN201721379588.1U patent/CN207407068U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442679A (en) * | 2019-08-30 | 2020-07-24 | 江苏科技大学 | Novel F L NG heat exchanger with S-shaped channel |
| CN111442679B (en) * | 2019-08-30 | 2024-05-07 | 江苏科技大学 | Novel FLNG heat exchanger with S-shaped channels |
| CN111692524A (en) * | 2020-06-19 | 2020-09-22 | 江苏科技大学 | LNG regasification experimental system and experimental method |
| CN113137319A (en) * | 2021-04-30 | 2021-07-20 | 招商局邮轮研究院(上海)有限公司 | Adopt boats and ships dual-fuel engine air supply system of PCHE low temperature heat exchanger |
| CN113137319B (en) * | 2021-04-30 | 2024-05-14 | 招商局工业科技(上海)有限公司 | Ship dual-fuel engine air supply system adopting PCHE low-temperature heat exchanger |
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