Integrated liquefied gas filling opening (valve) capable of being quickly dismounted inside

Abstract

The invention provides an integrated liquefied gas filling opening (valve) capable of being quickly dismounted inside. The integrated liquefied gas filling opening (valve) comprises a valve body, a valve seat and a valve element. A connection flange is arranged on the side wall of the valve body. A valve cavity is formed in the valve body in a penetrating mode. The valve seat is connected in the valve cavity in a threaded mode and divides the valve cavity into a lower cavity body and an upper cavity body. The valve seat is provided with a center hole enabling the upper cavity body and the lower cavity body to be communicated. A valve element assembly is arranged in the lower cavity body and comprises a guide sleeve and the valve element arranged on the guide sleeve in a sliding fit mode. The guide sleeve is located at the lower end of the valve element and provided with a liquefied gas discharging outlet allowing natural gas to pass through. A sealing ring is arranged on the end face of the valve element, and an elastic component is arranged between the valve element and the guide sleeve. The elastic component enables the valve element to tend to move upwards and enables the sealing ring to be attached to the sealing face of the valve seat. The integrated liquefied gas filling opening (valve) capable of being quickly dismounted inside is convenient to install and easy to operate. Meanwhile, normal work of the integrated liquefied gas filling opening under a low-temperature condition is ensured, and the service life of the integrated liquefied gas filling opening under the low-temperature condition is guaranteed.

Description

technical field [0001] The invention relates to a liquefied gas liquid filling port (valve) with a one-way valve structure, in particular to a quick internal disassembly integrated liquefied gas liquid filling port (valve). Background technique [0002] Liquefied Natural Gas (LNG), whose main component is methane, is recognized as the cleanest energy on earth. Colorless, odorless, non-toxic and non-corrosive, its volume is about 1 / 625 of the volume of the same volume of gaseous natural gas, and the weight of liquefied natural gas is only about 45% of the same volume of water. The manufacturing process is to first purify the natural gas produced in the gas field, and then transport it by liquefied natural gas ship after a series of ultra-low temperature liquefaction. The burning of liquefied natural gas causes very little air pollution and releases a lot of heat, so liquefied natural gas is a relatively advanced energy source. Liquefied natural gas is natural gas that becom...

AI Technical Summary

Problems solved by technology

The liquid natural gas is added to the storage tank through the liquid filling port (valve). Due to the influence of factors such as the structure of the traditional liquid filling port (valve), the structure of the traditional liquid filling port (valve) is complicated, the maintenance is difficult, and the manufacturing cost is high. Poor assembly controllability, low efficiency, poor reliability and stability of liquid addition, easy to cause seal leakage and sticking, resulting in poor safety and low service life

Increase the use and maintenance cost of the liquid filling port (valve), the reliability and safety cannot be effectively controlled, and the overall cost increases

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