Power cable sealed transmission mechanism for low-temperature submersed pump

Abstract

The invention relates to a power cable sealed transmission mechanism for a low-temperature submersed pump. The power cable sealed transmission mechanism comprises a hollow cylindrical first insulated sleeve with one end opened and the other end sealed, a hollow cylindrical second insulated sleeve with two ends opened and a copper conductor passing through the sealed end of the first insulated sleeve and in fixed and sealed connection with the sealed end, wherein the first insulated sleeve is used for being in fixed and sealed connection with the motor end cover of the low-temperature submersed pump, and in the case of connection, the opened end of the first insulated sleeve passes through the motor end cover to the inner part of the low-temperature submersed pump; one end of the second insulated sleeve and the sealed end of the first insulated sleeve are in fixed and sealed connection, and the other end passes to the outer part of the low-temperature submersed pump; the first end of the copper conductor is located in the first insulated sleeve for being connected with a wire of the motor; and the second end of the copper conductor is located inside the second insulated sleeve for being connected with an external low-temperature power cable. The problem that the power cable sealed transmission mechanism matched with the low-temperature submersed pump is lacked in the country is solved.

Description

technical field [0001] The invention relates to a cable sealing transmission mechanism, in particular to a power cable sealing transmission mechanism for a low temperature submersible pump. Background technique [0002] Cryogenic submersible fluid is required in LNG receiving stations, LNG liquefaction plants, LNG carriers, floating LNG liquefaction storage units, coal coke oven gas methanation LNG production units, and transportation of low-temperature media such as alkanes and olefins in chemical plants. The pump is used for transportation of cryogenic medium and operations such as loading and unloading vehicles. However, due to the characteristics of low temperature, flammability, explosion and vaporization of LNG, alkanes, olefins and other low-temperature media, the working conditions of such media delivery pumps are harsh, and the requirements for cable connections and sealing are very strict. The equipment has the characteristics of safe and reliable power transmissi...

AI Technical Summary

Problems solved by technology

However, due to the characteristics of low temperature, flammability, explosion and vaporization of LNG, alkanes, olefins and other low-temperature media, the working conditions of such media delivery pumps are harsh, and the requirements for cable connections and sealing are very strict. The equipment has the characteristics of safe and reliable power transmission

Due to the difficulty in design, manufacturing and testing, there is currently a lack of power cable sealing transmission structure matching cryogenic submersible pumps in China, resulting in high prices for related products and insufficient technical support.

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