CN207279260U - A kind of LNG low-temperature tankers vacuumize inner-outer circulation heating unit - Google Patents
A kind of LNG low-temperature tankers vacuumize inner-outer circulation heating unit Download PDFInfo
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- CN207279260U CN207279260U CN201720952086.7U CN201720952086U CN207279260U CN 207279260 U CN207279260 U CN 207279260U CN 201720952086 U CN201720952086 U CN 201720952086U CN 207279260 U CN207279260 U CN 207279260U
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- temperature
- insulated building
- heating unit
- lng
- outer circulation
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Abstract
It the utility model is related to a kind of LNG low-temperature tankers and vacuumize inner-outer circulation heating unit.Insulated building has the insulated building inner cavity that can pass in and out LNG tank body and tank car, there is insulation door in the side of insulated building, exhaust column air inlet, vacuum adapter and hot wind connector are fixed with another side walls, vacuum adapter and hot wind connector seal stretching insulated building and are communicated with the sealing of the air outlet of vacuum extractor and hot air apparatus respectively, the exhausting seal of tube stretches out insulated building, and the air outlet of exhaust column is communicated with the air inlet sealing of the hot air apparatus.
Description
Technical field
The utility model belongs to LNG Cryo Equipments field, and inner-outer circulation is vacuumized more particularly to a kind of LNG low-temperature tankers
Heating unit.
Background technology
The structure of LNG low-temperature tankers exceptionally cylinder and stainless steel inner cylinder, the LNG that inner cylinder stores less than -160 DEG C are low
Geothermal liquid.Interlayer between outer barrel and inner cylinder is a high vacuum region, and heat-insulating material is coated in this region.In order to outside
High vacuum is obtained in chuck between cylinder and inner cylinder, makes to inhale on the cladding heat-insulating material in interlayer inner metal surface and interlayer
Attached gas is extracted, and the speed heated to interlayer to accelerate to vacuumize is generally required when vacuumizing.
Vacuumize interlayer heating and be divided into external heat, interior heating and inside and outside while three kinds of forms of heating：External heat needs to build
Heating and thermal insulation room, the surrounding of insulated building sets heating unit, therefore cost is higher and poor to cladding heat-insulating material heating effect；It is interior to add
For heat because inner cylinder surface has coated heat-insulating material, heat transfer speed is slow, and requires low-temperature tanker outer surface covering cotton-wadded quilt etc.
Thermal insulation material is kept the temperature, and the bulky labor intensity of operating staff of tank car is big；It is inside and outside while heat construction cost higher.
The content of the invention
The shortcomings that in order to overcome the prior art, a kind of LNG low-temperature tankers of the utility model offer vacuumize inner-outer circulation and add
Thermal.It is simple in structure, and the efficiency of heating surface is high, and construction, use cost are low.
The technical scheme in the invention for solving the technical problem is:Insulated building have can pass in and out LNG tank bodies and
There are insulation door in the insulated building inner cavity of tank car, the side of insulated building, exhaust column air inlet are fixed with another side walls, vacuum connects
Head and hot wind connector, vacuum adapter and hot wind connector seal the outlet air for stretching out insulated building and vacuum extractor and hot air apparatus respectively
Mouth sealing communicates, and the exhausting seal of tube stretches out insulated building, and the air outlet of exhaust column is communicated with the air inlet sealing of the hot air apparatus.
The utility model has following advantages：1), using air seal circulating-heating, thermal loss is small, and the efficiency of heating surface is high；
2), since multilayer insulant is wrapped up in bottle inner cylinder outer wall, simultaneously because interlayer is in vacuum state, the heat of cylinder package
Measure to wrapping outer tube wall multilayer insulant transmit it is relatively difficult, therefore inner cylinder inside heating it is particularly important that, the present apparatus
The preferential heating effect that ensure that inner cylinder；3), outer closure insulated building is merely responsible for keeping the temperature, and reduces tank car as far as possible and enter guarantor
Gap size after hot house, reduces thermal loss and builds the cost of external heating device；4), electric furnace, which is taken, works intermittently
Mode, inlet air temperature, which reaches, closes heater after requirement, saves the energy；5) realized when, vacuumizing cylinder it is inside and outside at the same time
Heating function, and circulating air makes inside and outside temperature tend to be equal, improves thermal-stable and vacuumizes efficiency.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is utility model diagram；
Fig. 2 is the A-A sectional views in the utility model Fig. 1.
Embodiment
As shown in Figure 1, 2, insulated building 8 has an insulated building inner cavity that can pass in and out LNG tank body 9 and tank car 16, and the one of insulated building 8
There is insulation door 10 in side, and 5 air inlet of exhaust column, vacuum adapter 6 and hot wind connector 17, vacuum adapter are fixed with another side walls
6 and hot wind connector 17 seal to stretch out insulated building 8 and the air outlet of vacuum extractor 1 and hot air apparatus 2 and seal respectively and communicate, exhausting
Insulated building 8 is stretched out in the sealing of pipe 5, and the air outlet of exhaust column 5 is communicated with the air inlet sealing of the hot air apparatus 2.
The roof of the insulated building 8 and the maximal clearance of LNG tank body 9 are 60mm.
Guide rail 13 is arranged at the bottom of the insulated building 8, and the castor 14 of tank car 16 is installed on guide rail 13, it is ensured that LNG tank
Car 16 accurately passes in and out.
13 the inner of guide rail of 8 bottom of insulated building is fixed with locating piece 15, is accurately positioned after can entering to tank car 16.
It is described than tank car 16 be higher by 10-50mm insulated building 8 and insulation 10 inner wall of door on have it is prominent every platform 19, every platform
The insulated building inner cavity is divided into LNG tank body cavity 12 and tank car chamber 11 by 19, is further just pressed heating and heat preservation space, is carried
High thermal efficiency, reduces cost.
It is described every fixing fireproof heat insulating cotton 18 on platform 19, the gap between platform 19 and tank car 16 is sealed.
The hot air apparatus 2 is electric heater unit, there is temperature controlling function, controlled at 130 DEG C.
In use, opening insulation door 10, tank car 15 carries LNG tank body 9 and enters, in place after, by vacuum adapter 6 and hot wind
Connector 17 is connected with the corresponding valve seal on LNG tank body 9.Close insulation door 10.Hot air apparatus 2 is opened, is then opened again
Vacuum extractor 1, you can vacuumized to the sandwich portion of LNG tank body 9.
The outer closure insulated building 1 is brick mix structure；Door can be opened also to seal and keep the temperature, by the transport of LNG tank body 2
Trolley 8 is sent into outer closure insulated building 1.Heating blast pipe 4, electrical heating discharge pipe 5, vacuum extractor and pipeline 7 are connected to
The corresponding mouth of pipe of tank body, the gate of insulated building 1 are closed.Electric heater unit 3 starts hot wind be sent into by electrical heating discharge pipe 5 in
In cylinder cavity, air in inner cylinder enters insulated building 1 by inner cylinder air outlet tube mouth 6, and the air in insulated building 1 passes through electrical heating
Blast pipe 4 is into electric heater unit 3, and thus circulation is until electricity adds when the air themperature in electrical heating blast pipe 4 is higher than 130 DEG C
Thermal 3 stops；When the air themperature in electrical heating blast pipe 4 is less than 130 DEG C, electric heater unit 3 starts.Entirely heating
During vacuum extractor and pipeline 7 be interrupted sex work the sandwich portion of LNG tank body 2 vacuumized.
Claims (7)
1. a kind of LNG low-temperature tankers vacuumize inner-outer circulation heating unit, it is characterised in that：Insulated building (8) has and can pass in and out LNG
There are insulation door (10) in the insulated building inner cavity of tank body (9) and tank car (16), the side of insulated building (8), are fixed in another side walls
There are exhaust column (5) air inlet, vacuum adapter (6) and hot wind connector (17), vacuum adapter (6) and hot wind connector (17) seal respectively
Stretch out insulated building (8) to communicate with the sealing of the air outlet of vacuum extractor (1) and hot air apparatus (2), exhaust column (5) sealing, which is stretched out, to be protected
Hot house (8), the air outlet of exhaust column (5) are communicated with the air inlet sealing of the hot air apparatus (2).
2. LNG low-temperature tankers according to claim 1 vacuumize inner-outer circulation heating unit, it is characterised in that：The guarantor
The roof of hot house (8) and the maximal clearance of LNG tank body (9) are 60mm.
3. LNG low-temperature tankers according to claim 1 vacuumize inner-outer circulation heating unit, it is characterised in that：The guarantor
Guide rail (13) is arranged at the bottom of hot house (8), and the castor (14) of tank car (16) is installed on guide rail (13).
4. LNG low-temperature tankers according to claim 1 vacuumize inner-outer circulation heating unit, it is characterised in that：The guarantor
Guide rail (13) the inner of hot house (8) bottom is fixed with locating piece (15).
5. LNG low-temperature tankers according to claim 1 vacuumize inner-outer circulation heating unit, it is characterised in that：Than described
Tank car (16) be higher by the insulated building (8) and insulation door (10) inner wall of 10-50mm have it is prominent every platform (19), will every platform (19)
The insulated building inner cavity is divided into LNG tank body cavity (12) and tank car chamber (11).
6. LNG low-temperature tankers according to claim 5 vacuumize inner-outer circulation heating unit, it is characterised in that：Described
Every fixing fireproof heat insulating cotton (18) on platform (19), the gap between platform (19) and tank car (16) is sealed.
7. LNG low-temperature tankers according to claim 1 vacuumize inner-outer circulation heating unit, it is characterised in that：Described
Hot air apparatus (2) is electric heater unit, there is temperature controlling function, controlled at 130 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720952086.7U CN207279260U (en) | 2017-08-01 | 2017-08-01 | A kind of LNG low-temperature tankers vacuumize inner-outer circulation heating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720952086.7U CN207279260U (en) | 2017-08-01 | 2017-08-01 | A kind of LNG low-temperature tankers vacuumize inner-outer circulation heating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207279260U true CN207279260U (en) | 2018-04-27 |
Family
ID=61986634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720952086.7U Expired - Fee Related CN207279260U (en) | 2017-08-01 | 2017-08-01 | A kind of LNG low-temperature tankers vacuumize inner-outer circulation heating unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207279260U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288292A (en) * | 2020-03-28 | 2020-06-16 | 中国联合工程有限公司 | Shelf type LNG (liquefied Natural gas) cylinder vacuumizing device and vacuumizing method |
| CN112324643A (en) * | 2021-01-04 | 2021-02-05 | 湖南省特种设备检验检测研究院 | Vacuumizing method and vacuumizing device for low-temperature tank car |
-
2017
- 2017-08-01 CN CN201720952086.7U patent/CN207279260U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288292A (en) * | 2020-03-28 | 2020-06-16 | 中国联合工程有限公司 | Shelf type LNG (liquefied Natural gas) cylinder vacuumizing device and vacuumizing method |
| CN112324643A (en) * | 2021-01-04 | 2021-02-05 | 湖南省特种设备检验检测研究院 | Vacuumizing method and vacuumizing device for low-temperature tank car |
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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: 20180427 Termination date: 20200801 |
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| CF01 | Termination of patent right due to non-payment of annual fee |