CN207975467U - A kind of vapourizing unit of liquefied natural gas - Google Patents
A kind of vapourizing unit of liquefied natural gas Download PDFInfo
- Publication number
- CN207975467U CN207975467U CN201820117153.8U CN201820117153U CN207975467U CN 207975467 U CN207975467 U CN 207975467U CN 201820117153 U CN201820117153 U CN 201820117153U CN 207975467 U CN207975467 U CN 207975467U
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- Prior art keywords
- pipe
- natural gas
- liquefied natural
- diversion
- hollow pipe
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Abstract
The utility model discloses a kind of vapourizing units of liquefied natural gas, its key points of the technical solution are that：The drain pipe being connected to including storage tank and with storage tank, the diversion pipe being connected to drain pipe, the diversion pipe are fixed with the first hollow pipe outside, and layer of cloth and insulating plastic pipe foam are filled between first hollow pipe and diversion pipe.The utility model has the advantages that the frosting degree of water conservancy diversion tube outer surface can be reduced.
Description
Technical field
The utility model is related to liquefied natural gas（LNG）Apparatus field, the vaporization more particularly to a kind of liquefied natural gas fill
It sets.
Background technology
Natural gas is increasing as a kind of cleaning, demand of the efficient energy in resident's daily life, in reality
In life, natural gas is generally with liquefied natural gas（LNG）Form be stored in storage tank, storage space and fortune can be greatlyd save
Defeated cost, but state when natural gas is finally utilized is gaseous state, therefore, liquefied natural gas must be turned before being utilized
Turn to gaseous natural gas.
The vapourizing unit of currently used liquefied natural gas, as shown in Figure 1, including storage tank 2 and two groups of air temperature type vaporizers
3.Air temperature type vaporizer 3 is connect by drain pipe 21 with storage tank 2.In conjunction with Fig. 2, air temperature type vaporizer 3 includes the row of being fixedly connected on
The diversion pipe 31 of liquid pipe 21 and several star-like finned tubes 32 for being fixedly connected on diversion pipe 31.Star-like finned tube 32 includes fixed connects
It is connected to the central tube 321 of diversion pipe 31 and is equably fixedly connected on 8 star-like fins 322 of heat absorption of 321 surrounding of central tube, star
Type fin 322 is made of aluminum, has good heat transfer property.In use, the LNG in storage tank 2 flows successively through drain pipe 21 and leads
Flow tube 31 eventually enters into central tube 321, because the liquified natural gas in storage tank 2 is -161.5 degrees Celsius so that flow into central tube
LNG is the cryogenic liquid far below air themperature in 321 so that the LNG in central tube 321 can pass through central tube 321 and sky
Gas carries out heat exchange, and increases heat exchange area using star-like fin 322 so that LNG heatings vaporization and from storage tank in central tube 321
2 top returns in storage tank 2.
During the work time, the LNG of drain pipe 21 and diversion pipe 31 is flowed to from storage tank 2 as the low temperature far below air themperature
Liquid so that drain pipe 21 and 31 hull-skin temperature of diversion pipe are far below ambient temperature, and the moisture in air can condense frosting.
Utility model content
The purpose of this utility model is to provide a kind of vapourizing unit of liquefied natural gas, its advantage is that diversion pipe can be reduced
The frosting degree of outer surface.
The above-mentioned technical purpose of the utility model technical scheme is that：A kind of liquefied natural gas
Vapourizing unit, including storage tank and the drain pipe being connected to storage tank, the diversion pipe being connected to drain pipe, the diversion pipe are fixed with outside
First hollow pipe is filled with layer of cloth and insulating plastic pipe foam between first hollow pipe and diversion pipe.
Through the above technical solutions, layer of cloth and insulating plastic pipe foam in the first hollow pipe can to internal diversion pipe into
Row heat preservation, alleviates the temperature difference inside and outside diversion pipe, to reduce the amount of the frosting outside diversion pipe.
The utility model is further arranged to：Be fixed with the second hollow pipe outside first hollow pipe, the first hollow pipe with
It is filled with drier between second hollow pipe, the ventilation being connected to the second hollow pipe is offered in the cavity wall of first hollow pipe
Hole.
Through the above technical solutions, being directly connected to the first hollow pipe outside diversion pipe, inevitably have in a small amount of air
Condensate moisture on layer of cloth, and layer of cloth is frozen on diversion pipe at low temperature.Drier can remove the first hollow pipe
With the moisture of the second hollow inner air tube, reduce the possibility that layer of cloth freezes, the frosting degree being further reduced outside diversion pipe.
The utility model is further arranged to：The drier is anhydrous calcium chloride.
Through the above technical solutions, anhydrous calcium chloride is neutral drier, it is not easy to be reacted with other substances, health cup
It protects.
The utility model is further arranged to：The vapourizing unit connect with diversion pipe, is located at the storage tank two
A pair of of air temperature type vaporizer of side, diversion pipe are equipped with the control that control liquefied natural gas respectively enters different air temperature type vaporizers
Valve.
Through the above technical solutions, a secondary control LNG stream enters in an air temperature type vaporizer, when the air temperature type vaporizer
When water conservancy diversion tube outer surface has more frost, the control valve of currently used air temperature type vaporizer is closed, makes currently used air temperature type
Vaporizer is out of service, opens another control valve so that the LNG stream in drain pipe carries out work to another group of air temperature type vaporizer
Make.When one group of air temperature type vaporizer is worked, the not no LNG stream mistake of ultralow temperature in another group of air temperature type vaporizer, table
The frosting in face can melt gradually.Working to two groups of air temperature type vaporizer clearance-types, there may be the times that frosting is melted, favorably
In the frosting degree for reducing entirety.
The utility model is further arranged to：The air temperature type vaporizer includes the central tube being connected to diversion pipe, fixation
Several star-like fins on central tube.
Through the above technical solutions, star-like fin can increase the surface area of central tube, and then increase endotherm area.
The utility model is further arranged to：Circumference array distribution of the star-like fin about central tube.
In conclusion the utility model has the advantages that：
1, the layer of cloth in the first hollow pipe and insulating plastic pipe foam can keep the temperature internal diversion pipe, alleviate water conservancy diversion
The inside and outside temperature difference of pipe, to reduce the amount of the frosting outside diversion pipe；
2, drier can remove the moisture of the first hollow pipe and the second hollow inner air tube, reduce the possibility that layer of cloth freezes
Property, the frosting degree being further reduced outside diversion pipe；
3, it works there may be the time that frosting is melted to two groups of air temperature type vaporizer clearance-types, advantageously reduces whole
Frosting degree.
Description of the drawings
Fig. 1 is the structural schematic diagram of background technology；
Fig. 2 is the structural schematic diagram of air temperature type vaporizer in background technology；
Fig. 3 is the structural schematic diagram of embodiment 1；
Fig. 4 is the connection relationship diagram of drain pipe and diversion pipe in embodiment 1；
Fig. 5 is the structural schematic diagram that layer of cloth is embodied in embodiment 1；
Fig. 6 is the structural schematic diagram that insulating plastic pipe foam is embodied in embodiment 1；
Fig. 7 is the structural schematic diagram of star-like finned tube in embodiment 1；
Fig. 8 is the structural schematic diagram of embodiment 2.
In figure, 1, pedestal；2, storage tank；21, drain pipe；211, supplying valve；3, air temperature type vaporizer；31, diversion pipe；311、
Link block；312, control valve；32, star-like finned tube；321, central tube；322, star-like fin；323, fixed block；33, connection sheet；
4, gas-guide tube；5, air inlet pipe；6, layer of cloth；7, the first hollow pipe；71, insulating plastic pipe foam；8, the second hollow pipe；81, drier；
82, venthole.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
Embodiment 1：A kind of vapourizing unit of liquefied natural gas, as shown in figure 3, including pedestal 1, being fixed at pedestal 1
On storage tank 2 and be connected to two groups of air temperature type vaporizers 3 of storage tank 2.Store LNG in storage tank 2, air temperature type vaporizer 3 is by LNG
Heating is vaporizated into gaseous natural gas.
2 bottom of storage tank is fixedly connected with drain pipe 21, and drain pipe 21 has certain interval, drain pipe 21 to be equipped with pedestal 1
Supplying valve 211, operating personnel open supplying valve 211 when use, and the LNG stream in storage tank 2 is to drain pipe 21.
Air temperature type vaporizer 3 includes diversion pipe 31 and several star-like finned tubes 32 for being fixedly connected on diversion pipe 31.Water conservancy diversion
Pipe 31 has certain gap with pedestal 1, and is in same level with drain pipe 21.Several connections are fixed on diversion pipe 31
Block 311, link block 311 are fixedly connected with pedestal 11 so that diversion pipe 31, which can be stablized, supports star-like finned tube 32.
As shown in figure 4, the diversion pipe 31 of two groups of air temperature type vaporizers 3 is connected to and with drain pipe 21 far from supplying valve 211 1
End connection, control valve 312 is respectively equipped in two diversion pipes 31 at drain pipe 21, in use, operating personnel open wherein
Control valve 312 on one diversion pipe 31 closes the control valve 312 on another diversion pipe 31, the LNG stream in drain pipe 21 to
Diversion pipe 31 corresponding with open control valve 312, and enter in corresponding air temperature type vaporizer 3.
It works after a period of time, when there is more frost in 31 outer surface of diversion pipe, closes currently used air temperature type vaporization
The control valve 312 of device 3, keeps currently used air temperature type vaporizer 3 out of service, opens the control valve on another diversion pipe 31
312 so that the LNG stream in drain pipe 21 works to another group of air temperature type vaporizer 3.One group of air temperature type vaporizer 3 into
When row work, the LNG stream mistake of ultralow temperature, the frosting on surface can not melt gradually in another group of air temperature type vaporizer 3.Two
It works there may be the time that frosting is melted to group 3 clearance-type of air temperature type vaporizer, advantageously reduces whole frosting degree.
In conjunction with Fig. 5, layer of cloth 6 is wrapped on diversion pipe 31 so that have low temperature LNG stream out-of-date in diversion pipe 31, Ke Yitong
The temperature difference that layer of cloth 6 alleviates 31 internal-external of diversion pipe is crossed, and the water imbibition of cotton layer can be drawn in portion of air
Moisture is reduced in cotton layer in 31 outer surface frosting degree of diversion pipe.Further, as shown in fig. 6, being fixed with outside layer of cloth 6
First hollow pipe 7, the first hollow pipe 7 is in closed, and the both ends of the first hollow pipe 7 are fixedly connected on the both ends of diversion pipe 31.
Insulating plastic pipe foam 71 is filled between layer of cloth 65 and the first hollow pipe 7 so that 31 surrounding of diversion pipe is moulded by layer of cloth 6 and heat preservation
The package of strand foam 71, the further temperature difference alleviated inside and outside diversion pipe 31, and air are in 7 internal flow of the first hollow pipe, no
The air having outside the first hollow pipe 7 enters so that LNG and the amount of the air heat exchange outside diversion pipe 31 in diversion pipe 31 are
It is limited, reduce the frosting degree in 31 outer surface of diversion pipe.Same method can be used on drain pipe 21, it is possible to reduce row
21 outer surface frosting degree of liquid pipe.
As shown in fig. 7, star-like finned tube 32 is solid including the central tube 321 and Circle-Array column for being fixedly connected on diversion pipe 31
Surely eight star-like fins 322 that absorb heat of 321 surrounding of central tube are connected to.In conjunction with Fig. 3, central tube 321 close to 1 one end of pedestal with lead
Flow tube 31 connects, and central tube 321 is fixedly connected with gas-guide tube 4 far from 1 one end of pedestal, gas-guide tube 4 in a ring and with all centers
321 top connection of pipe.Air inlet pipe 5 is fixedly connected on gas-guide tube 4, air inlet pipe 5 stretches into storage tank 2 simultaneously far from 4 one end of gas-guide tube
Connection fixed thereto.In use, the LNG stream in diversion pipe 31 to central tube 321, flowed successively through after vaporization gas-guide tube 4 and into
Tracheae 5, and then storage tank 2 is flowed into, then pass through the exhaust pipe on storage tank 2（It is not drawn into figure）Outflow is conveyed.
It is fixed with a connecting piece 33 on the star-like fin 322 of adjacent star-like finned tube 32, by adjacent star-like finned tube
32 link together.And in the star-like fin 322 close to storage tank 22, it far from 1 one end of pedestal is fixedly connected with fixed block 323,
323 another side of fixed block is fixedly connected with storage tank 22 so that star-like finned tube 32 is stably connected on diversion pipe 31, will not be because of
Gravity is toppled over.
Star-like fin 322 is rectangular and made of aluminum, has good heat transfer property.In use, LNG in storage tank 22 according to
It is secondary to flow through drain pipe 21 and diversion pipe 31 and then flow into central tube 321, because the LNG in storage tank 22 is -161.5 degrees Celsius, in
LNG is the cryogenic liquid far below air themperature in heart pipe 321 so that the LNG in central tube 321 can pass through central tube 321
Heat exchange is carried out with air, star-like fin 322 increases the heat transfer area of LNG and air so that the LNG heatings in central tube 321
It is vaporized.
The course of work：Supplying valve 211 is opened, by the LNG stream in storage tank 2 to drain pipe 21, opens one group of air temperature type vapour
The control valve 312 for changing device 3, closes the control valve 312 of another group of air temperature type vaporizer 3 so that the LNG stream of drain pipe 21 is to correspondence
Diversion pipe 31, and then flow to the central tube 321 of star-like finned tube 32, the star-like fin 322 of star-like finned tube 32 absorbs environment
In heat and central tube 321 in LNG heat exchanges so that LNG heating vaporizations, the gaseous natural gas after then vaporizing flow successively
It to gas-guide tube 4, air inlet pipe 5 and then flows in storage tank 2, carry out following process is then flowed out by the exhaust pipe on storage tank 2.Cloth
Layer after a period of use, closes the control valve 312 of currently used air temperature type vaporizer 3, opens another air temperature type vaporizer 3
Diversion pipe 31 on control valve 312 so that another group of air temperature type vaporizer 3 continue vaporize LNG.
Embodiment 2：A kind of vapourizing unit of liquefied natural gas, difference from Example 1 be, as shown in figure 8,
The cavity wall of first hollow pipe 7 is equipped with several ventholes 82, and the second hollow pipe 8, the second hollow pipe are externally provided in the first hollow pipe 7
8 both ends are fixedly connected on the both ends of the first hollow pipe 7.Drier is filled between the first hollow pipe 7 and the second hollow pipe 8
81, drier 81 is selected as neutral anhydrous calcium chloride, and drier 81 can remove the moisture of air in the second hollow pipe 8, also may be used
To remove the moisture in the air in the first hollow pipe 7 by venthole 82.It prevents in the first hollow pipe 7 and the second hollow pipe 8
The condensate moisture inside having in air frosts.Embodiment 1 has been directly connected to the first hollow pipe outside diversion pipe 31, inevitably has few
Condensate moisture in the air of amount makes layer of cloth 6 be frozen at low temperature on diversion pipe 31 on layer of cloth 6.Embodiment 2 is then sharp
Air is dried with the drier 81 in the second hollow pipe 8, it is hollow that drier 81 can remove the first hollow pipe 7 and second
The moisture of air in pipe 8 reduces the possibility that layer of cloth 6 freezes, the frosting degree being further reduced outside diversion pipe 31.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
Claims (6)
1. a kind of vapourizing unit of liquefied natural gas, including storage tank（2）With with storage tank（2）The drain pipe of connection（21）With drain
Pipe（21）The diversion pipe of connection（31）, it is characterized in that：The diversion pipe（31）It is fixed with the first hollow pipe outside（7）, described first
Hollow pipe（7）With diversion pipe（31）Between be filled with layer of cloth（6）With insulating plastic pipe foam（71）.
2. a kind of vapourizing unit of liquefied natural gas according to claim 1, it is characterized in that：First hollow pipe（7）
It is fixed with the second hollow pipe outside（8）, the first hollow pipe（7）With the second hollow pipe（8）Between be filled with drier（81）, described
One hollow pipe（7）Cavity wall on offer and the second hollow pipe（8）The venthole of connection（82）.
3. a kind of vapourizing unit of liquefied natural gas according to claim 2, it is characterized in that：The drier（81）For nothing
Water calcium chloride.
4. a kind of vapourizing unit of liquefied natural gas according to claim 1, it is characterized in that：The vapourizing unit include with
Diversion pipe（31）Connection, be located at the storage tank（2）A pair of of air temperature type vaporizer of both sides（3）, diversion pipe（31）It is equipped with and divides
Not Kong Zhi liquefied natural gas enter different air temperature type vaporizers（3）Control valve（312）.
5. a kind of vapourizing unit of liquefied natural gas according to claim 4, it is characterized in that：The air temperature type vaporizer
（3）Including with diversion pipe（31）The central tube of connection（321）, be fixed on central tube（321）On several star-like fins（322）.
6. a kind of vapourizing unit of liquefied natural gas according to claim 5, it is characterized in that：The star-like fin（322）
About central tube（321）Circumference array distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820117153.8U CN207975467U (en) | 2018-01-23 | 2018-01-23 | A kind of vapourizing unit of liquefied natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820117153.8U CN207975467U (en) | 2018-01-23 | 2018-01-23 | A kind of vapourizing unit of liquefied natural gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207975467U true CN207975467U (en) | 2018-10-16 |
Family
ID=63770101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820117153.8U Expired - Fee Related CN207975467U (en) | 2018-01-23 | 2018-01-23 | A kind of vapourizing unit of liquefied natural gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207975467U (en) |
-
2018
- 2018-01-23 CN CN201820117153.8U patent/CN207975467U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181016 Termination date: 20210123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |