CN204301250U - A kind of ventilating system for LNG receiving terminal - Google Patents
A kind of ventilating system for LNG receiving terminal Download PDFInfo
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- CN204301250U CN204301250U CN201420745211.3U CN201420745211U CN204301250U CN 204301250 U CN204301250 U CN 204301250U CN 201420745211 U CN201420745211 U CN 201420745211U CN 204301250 U CN204301250 U CN 204301250U
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- lng
- storage tank
- air
- receiving terminal
- ventilation duct
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Abstract
The utility model discloses a kind of ventilating system for LNG receiving terminal.Described ventilating system comprises breeze fan, exhaust fan and LNG storage tank strut group; Described breeze fan and described exhaust fan are all located at the top of described LNG receiving terminal; Described breeze fan is connected with air-supply ventilation duct, and described air-supply ventilation duct extends to the bottom of described LNG receiving terminal, and the air outlet of described air-supply ventilation duct is opened on the bottom of LNG storage tank; Described exhaust fan is connected with air draft ventilation duct, and described air draft ventilation duct extends to the bottom of described LNG receiving terminal, and the air inlet of described air draft ventilation duct is opened on the bottom of LNG storage tank; Described LNG storage tank strut group is located at the bottom of LNG storage tank, and described LNG storage tank strut group comprises several struts.Due to the effect of the utility model ventilating system, LNG storage tank ambient air is in circulation status, avoids the summation of LNG receiving terminal inner cryogenic.
Description
Technical field
The utility model relates to a kind of ventilating system for LNG receiving terminal, belongs to liquefied natural gas (LNG) transmission & distribution technology field.
Background technology
Marine LNG receiving terminal is the critical facility storing LNG liquid, mainly comprises concrete caisson and is placed on the LNG storage tank in caisset.Due to the ultralow temperature characteristic (-162 DEG C) of LNG liquid, surrounding concrete can be made to be in low-temperature condition, affect the normal work of xoncrete structure, how shielding ultralow temperature effect is the major issue that development LNG memory device must solve.Especially in the enclosed environment of caisson, in caisson, air and outside air are difficult to exchange, and more exacerbate the adverse effect of cryogenic liquid to surrounding concrete structure.
Utility model content
The purpose of this utility model is to provide a kind of ventilating system for LNG receiving terminal, and the utility model ventilating system effectively can alleviate the adverse effect that cryogenic liquid produces structural concrete.
Ventilating system for LNG receiving terminal provided by the utility model, comprises breeze fan, exhaust fan and LNG storage tank strut group;
Described breeze fan and described exhaust fan are all located at the top of described LNG receiving terminal;
Described breeze fan is connected with air-supply ventilation duct, and described air-supply ventilation duct extends to the bottom of described LNG receiving terminal, and the air outlet of described air-supply ventilation duct is opened on the bottom of LNG storage tank;
Described exhaust fan is connected with air draft ventilation duct, and described air draft ventilation duct extends to the bottom of described LNG receiving terminal, and the air inlet of described air draft ventilation duct is opened on the bottom of LNG storage tank;
Described LNG storage tank strut group is located at the bottom of LNG storage tank, and described LNG storage tank strut group comprises several struts.
In described ventilating system, the material of described strut can be concrete or steel pipe.
In described ventilating system, the height of described strut is 0.5m ~ 1.5m, plays support LNG storage tank, ensures the logical wind action bottom LNG storage tank.
In described ventilating system, the free-end of described air-supply ventilation duct is communicated with air outlet described in several, with the air-supply to LNG storage tank bottom even.
In described ventilating system, the free-end of described air inlet ventilation pipe is communicated with air inlet described in several, evenly to be discharged by the air bottom LNG storage tank.
The ventilating system that the utility model provides can be used for marine LNG receiving terminal, during Specific construction, can carry out in accordance with the following steps:
The first step, when carrying out the construction of LNG receiving terminal, first arranging a series of LNG storage tank strut at LNG receiving terminal structure base slab, being then placed on strut by LNG storage tank;
Second step, installs ventilating system, comprises breeze fan, air-supply ventilation duct, exhaust fan and air draft ventilation duct etc.During LNG receiving terminal day-to-day operation, intake can be estimated according to LNG liquid and surrounding environment heat exchange amount, also can adjust intake etc. flexibly according to the conversion of the output of LNG liquid or input process liquid volume.
Due to the effect of the utility model ventilating system, LNG storage tank ambient air is in circulation status, avoids the summation of LNG receiving terminal inner cryogenic.
The ventilating system tool that the utility model is used for LNG receiving terminal has the following advantages:
(1) device is simple, flexible arrangement;
(2) avoid and settle heater, comprehensive cost low bottom LNG receiving terminal;
(3) icing phenomenon using current heat exchange to cause is avoided;
(4) construction is simple, quick.
Accompanying drawing explanation
Fig. 1 is the generalized section of the utility model for the ventilating system of LNG receiving terminal;
Fig. 2 is the schematic top plan view of the utility model for the ventilating system of LNG receiving terminal;
In figure, each mark is as follows:
1 breeze fan, 2 air-supply ventilation ducts, 3 air outlets, 4 exhaust fans, 5 air draft ventilation ducts, 6 air inlets, 7 LNG receiving terminals, 8 LNG storage tank, 9 LNG storage tank strut groups.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further, but the utility model is not limited to following examples.
As depicted in figs. 1 and 2, for the utility model is used for the ventilating system of LNG receiving terminal, it comprises breeze fan 1, exhaust fan 4 and LNG storage tank strut group 9.In the utility model, LNG storage tank strut group 9 comprises the strut of multiple concrete material, and it is highly 0.5m ~ 1.5m, for supporting LNG storage tank 8, ensures the ventilation bottom LNG storage tank 8.Breeze fan 1 and exhaust fan 4 are all located at the top of LNG receiving terminal 7, and breeze fan 1 is connected with air-supply ventilation duct 2, this air-supply ventilation duct 2 and air draft ventilation duct 5 all extend to the bottom of LNG receiving terminal 7, the free-end of air-supply ventilation duct 2 is connected with 5 air outlets be evenly arranged 3 (concrete quantity can adjust according to actual conditions), above-mentioned air outlet 3 is all opened on the bottom of LNG storage tank 8, for the air supply at the bottom to LNG storage tank 8.The free-end of air draft ventilation duct 5 is connected with 5 air inlets be evenly arranged 6 (concrete quantity can adjust according to actual conditions), and above-mentioned air inlet 6 is all opened on the bottom of LNG storage tank 8, for the air in LNG receiving terminal 7 is drained into the external world.
When the utility model ventilating system is applied to LNG receiving terminal, can carry out in accordance with the following steps:
The first step, when carrying out LNG receiving terminal 7 and constructing, first arranges a series of LNG storage tank strut 9 at receiving terminal structure base slab, is then placed on strut 9 by LNG storage tank 8;
Second step, installs ventilating system, comprises breeze fan 1, exhaust fan 4, air-supply ventilation duct 2 and air draft ventilation duct 5 etc.During LNG receiving terminal 7 day-to-day operation, send into outside air by air inlet ventilation pipe 2 and air outlet 3 to LNG receiving terminal 7 inside by air intake blower fan 1, by air draft ventilation duct 5 and air inlet 6, air in LNG receiving terminal 7 is sent into LNG receiving terminal 7 by exhaust fan 4 outside simultaneously.Intake can be estimated according to LNG liquid and surrounding environment heat exchange amount, also can adjust intake etc. flexibly according to the conversion of the output of LNG liquid or input process liquid volume.For the effect of ventilating system, LNG storage tank 8 ambient air is in circulation status, avoids the summation of LNG receiving terminal inner cryogenic.
Claims (5)
1. for a ventilating system for LNG receiving terminal, it is characterized in that: described ventilating system comprises breeze fan, exhaust fan and LNG storage tank strut group;
Described breeze fan and described exhaust fan are all located at the top of described LNG receiving terminal;
Described breeze fan is connected with air-supply ventilation duct, and described air-supply ventilation duct extends to the bottom of described LNG receiving terminal, and the air outlet of described air-supply ventilation duct is opened on the bottom of LNG storage tank;
Described exhaust fan is connected with air draft ventilation duct, and described air draft ventilation duct extends to the bottom of described LNG receiving terminal, and the air inlet of described air draft ventilation duct is opened on the bottom of LNG storage tank;
Described LNG storage tank strut group is located at the bottom of LNG storage tank, and described LNG storage tank strut group comprises several struts.
2. ventilating system according to claim 1, is characterized in that: the material of described strut is concrete or steel pipe.
3. ventilating system according to claim 1 and 2, is characterized in that: the height of described strut is 0.5m ~ 1.5m.
4. ventilating system according to claim 3, is characterized in that: the free-end of described air-supply ventilation duct is communicated with air outlet described in several.
5. ventilating system according to claim 4, is characterized in that: the free-end of described air inlet ventilation pipe is communicated with air inlet described in several.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420745211.3U CN204301250U (en) | 2014-12-01 | 2014-12-01 | A kind of ventilating system for LNG receiving terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420745211.3U CN204301250U (en) | 2014-12-01 | 2014-12-01 | A kind of ventilating system for LNG receiving terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204301250U true CN204301250U (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420745211.3U Active CN204301250U (en) | 2014-12-01 | 2014-12-01 | A kind of ventilating system for LNG receiving terminal |
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| Country | Link |
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| CN (1) | CN204301250U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456819A (en) * | 2014-12-01 | 2015-03-25 | 中国海洋石油总公司 | Ventilation system used for LNG (Liquefied Natural Gas) receiving terminal |
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2014
- 2014-12-01 CN CN201420745211.3U patent/CN204301250U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104456819A (en) * | 2014-12-01 | 2015-03-25 | 中国海洋石油总公司 | Ventilation system used for LNG (Liquefied Natural Gas) receiving terminal |
| CN104456819B (en) * | 2014-12-01 | 2017-02-22 | 中国海洋石油总公司 | Ventilation system used for LNG (Liquefied Natural Gas) receiving terminal |
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