Title:
LNG FUELING STATION EMPLOYING BOG ENERGY STORAGE AND PRESSURE DIFFERENTIAL
Document Type and Number:
WIPO Patent Application WO/2017/031986
Kind Code:
A1
Abstract:
An LNG fueling station employing BOG energy storage and pressure differential comprises: an LNG lorry (1); a pressure-boosting vaporizer (2); a cryogenic LNG tank (12); a gas-fueling apparatus (14); and an LNG liquid-fueling machine (22). An LNG inlet pipe (26) and a BOG discharge pipe (27) are disposed between the gas-fueling apparatus (14) and the LNG liquid-fueling machine (22). The LNG liquid-fueling machine (22) is connected, via a first BOG recycling channel (28), to a BOG heater (20), the cryogenic LNG tank (12) and an inlet pipe (23). The BOG heater (20) is connected to a BOG buffer tank (19). The BOG buffer tank (19) is connected to a BOG compressor (16). The BOG compressor (16) is connected to a BOG storage tank (15). The BOG storage tank (15) is connected, via a second channel (30), to the inlet pipe (23) and the first BOG recycling channel (28), respectively. The cryogenic LNG tank (12) is connected to the BOG heater (20) via a second BOG recycling channel (29). By using connection channels and a stop valve, the fueling station requires no cryogenic submerged pumps and complementary heat insulation pump sumps, thereby saving facility costs. Moreover, using the BOG compressor to recycle and store a BOG having a certain pressure saves operation costs of a fueling station while realizing re-liquefaction of the BOG in a cryogenic tank, thereby minimizing BOG emission, saving energy, and reducing environmental pollution.
Inventors:
ZHAO PINZHONG (CN)
WANG YING (CN)
ZENG JIANBING (CN)
ZHANG JINGLIN (CN)
WANG YING (CN)
ZENG JIANBING (CN)
ZHANG JINGLIN (CN)
Application Number:
PCT/CN2016/077938
Publication Date:
March 02, 2017
Filing Date:
March 31, 2016
Export Citation:
Assignee:
ZIGONG TONGDA MACHINERY MFG CO LTD (CN)
International Classes:
F17C5/02; F17C7/02; F17C13/04
Domestic Patent References:
| WO2015048420A1 | 2015-04-02 |
Foreign References:
| CN205014033U | 2016-02-03 | |||
| CN103672394A | 2014-03-26 | |||
| CN102155615A | 2011-08-17 | |||
| CN104806879A | 2015-07-29 | |||
| CN103062620A | 2013-04-24 | |||
| EP2623414A1 | 2013-08-07 |
Attorney, Agent or Firm:
CHOFN INTELLECTUAL PROPERTY (CN)
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