Ventilation system used for LNG (Liquefied Natural Gas) receiving terminal
A ventilation system and receiving terminal technology, applied in the field of ventilation systems, can solve the problems of exacerbating the adverse effects of surrounding concrete structures, difficulty in exchange, and affecting the normal operation of concrete structures, etc., and achieve the effects of simple construction, flexible layout, and simple installation
Active Publication Date: 2015-03-25
CHINA NAT OFFSHORE OIL CORP +1
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Problems solved by technology
Due to the ultra-low temperature characteristics of LNG liquid (-162°C), the surrounding concrete will be in a low-temperature state, which will affect the normal operation of the concrete structure. How to shield the ultra-low temperature effect is an important problem that must be solved in the development of LNG storage equipment
Especially in the closed environment of the caisson, it is difficult to exchange the air inside the caisson with the outside air, which exacerbates the adverse effects of low temperature liquid on the surrounding concrete structure
Method used
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[0026] The present invention will be further described below in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments.
[0027] Such as figure 1 and figure 2 Shown is the ventilation system for the LNG receiving terminal of the present invention, which includes a blower fan 1 , an exhaust fan 4 and LNG storage tank supporting short column groups 9 . In the present invention, the support column group 9 of the LNG storage tank includes a plurality of concrete support columns with a height of 0.5m-1.5m for supporting the LNG storage tank 8 and ensuring ventilation at the bottom of the LNG storage tank 8 . The air supply fan 1 and the exhaust fan 4 are all arranged on the top of the LNG receiving terminal 7, and the air supply fan 1 is connected with the air supply ventilation pipe 2, and the air supply ventilation pipe 2 and the exhaust air ventilation pipe 5 are all extended to the LNG receiving terminal. The bottom ...
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The invention discloses a ventilation system used for an LNG (Liquefied Natural Gas) receiving terminal. The ventilation system comprises an air supply fan, an air exhaust fan and an LNG storage tank supporting short column group, wherein the air supply fan and the air exhaust fan are both arranged at the top of the LNG receiving terminal; the air supply fan is communicated with an air supply ventilation pipe, the air supply ventilation pipe extends to the bottom of the LNG receiving terminal, and an air outlet of the air supply ventilation pipe is formed in the bottom of an LNG storage tank; the air exhaust fan is communicated with an air exhaust ventilation pipe, the air exhaust ventilation pipe extends to the bottom of the LNG receiving terminal, and an air inlet of the air exhaust ventilation pipe is formed in the bottom of the LNG storage tank; the LNG storage tank supporting short column group is arranged at the bottom of the LNG storage tank, and comprises a plurality of supporting short columns. Due to the effect of the ventilation system disclosed by the invention, surrounding air of the LNG storage tank is in a circulating state, and an accumulation effect of low temperature inside the LNG receiving terminal is avoided.
Description
technical field [0001] The invention relates to a ventilation system for an LNG receiving terminal, belonging to the technical field of liquefied natural gas (LNG) transmission and distribution. Background technique [0002] The offshore LNG receiving terminal is an important facility for storing LNG liquid, mainly including concrete caissons and LNG storage tanks placed in the caisson structure. Due to the ultra-low temperature characteristics of LNG liquid (-162°C), the surrounding concrete will be in a low-temperature state, which will affect the normal operation of the concrete structure. How to shield the ultra-low temperature effect is an important problem that must be solved in the development of LNG storage equipment. Especially in the closed environment of the caisson, it is difficult to exchange the air inside the caisson with the outside air, which exacerbates the adverse effect of the low temperature liquid on the surrounding concrete structure. Contents of the...
Claims
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IPC IPC(8): F24F7/08
CPCF24F7/08F24F2013/221
Inventor 陈峰屈长龙彭延建毕晓星肖立张彧
Owner CHINA NAT OFFSHORE OIL CORP