Liquefied natural gas filling station and double-pump skid thereof

Abstract

The invention discloses a double-pump skid. The double-pump skid comprises a first submersed pump, a first gas selling machine connector, a second submersed pump, a second gas selling machine connector (9) and a communicating pipe (10), wherein a liquid outlet end of the first gas selling machine connector communicates with a liquid inlet of a gas selling machine, and the liquid inlet end of the first gas selling machine connector communicates with a liquid outlet of the first submersed pump; a stop valve is arranged on the first gas selling machine connector; the liquid outlet end of the second gas selling machine connector communicates with the liquid inlet of the gas selling machine, and the liquid inlet end of the second gas selling machine connector communicates with the liquid outlet of the second submersed pump; a stop valve is arranged on the second gas selling machine connector; the liquid inlet end of the first gas selling machine connector communicates with the liquid inlet end of the second gas selling machine connector through the communicating pipe; a stop valve is arranged on the communicating pipe. According to the double-pump skid, the communicating pipe is arranged, so that the correspondence relation between the gas selling machine connectors and the submersed pumps can be changed, a liquefied natural gas filling station can continuously sell gas, and the problem that the liquefied natural gas filling station cannot continuously sell the gas can be effectively avoided. The invention further discloses the liquefied natural gas filling station comprising the double-pump skid.

Description

technical field [0001] The present invention relates to the field of electrical technology, and more specifically, relates to a double-pump skid for a liquefied natural gas filling station, and also relates to a liquefied natural gas filling station including the above-mentioned double-pump skid. Background technique [0002] Liquefied natural gas filling stations generally include storage tanks, double-pump skids, and gas vending machines. The double-pump skid is provided with an unloading opening group for connecting with the interface group of the transport tanker, a storage tank opening group for communicating with the storage tank, and a gas selling opening group for communicating with the gas selling machine. The function of the double pump skid is to unload the liquefied natural gas in the transport tanker, and then transfer the liquefied natural gas to the storage tank through the storage tank port group, or transfer the unloaded liquefied natural gas to the submersi...

AI Technical Summary

Problems solved by technology

[0006] In view of this, the first purpose of the present invention is to provide a double-pump skid for a liquefied natural gas filling station, which can effectively solve the problem that the liquefied natural gas station cannot guarantee gas sales. The second purpose of the present invention It is to provide a liquefied natural gas refueling station including the above-mentioned double-pump skid

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