High-voltage flexible connection device used for crude oil electric dehydration transformer, and installation method thereof

Abstract

The invention belongs to the technical field of crude oil dehydration high-voltage power supply devices, particularly relates to a high-voltage flexible connection device used for a crude oil electricdehydration transformer, and an installation method thereof, and is put forward by aiming at the problem of an existing connecting device that an external connecting pipeline does not have enough hardness or hardness is too high and flexibility is poor. The device mainly comprises a high-voltage flexible connecting element, wherein the high-voltage flexible connecting element comprises a stainless steel thread weaving flexible connecting pipe and a high-voltage lead; the stainless steel thread weaving flexible connecting pipe is sheathed to the high-voltage lead; the stainless steel thread weaving flexible connecting pipe is full of supporting sheets and insulating sleeves, which are arranged at intervals; the supporting sheets and the insulating sleeves are sheathed to the high-voltage lead; two ends of the stainless steel thread weaving flexible connecting pipe are independently provided with a flange; and the flanges are independently connected with a transformer high-voltage junction box and an electric dehydration tank high-voltage junction device through an insulated sealing structure. By use of the device, external mechanical and compression strength can be guaranteed, internal electric field distribution is equalized, and insulation intensity is improved.

Description

Technical field: [0001] The invention belongs to the technical field of high-voltage power supply devices for crude oil dehydration, and in particular relates to a high-voltage flexible connection device for a crude oil electric dehydration transformer and an installation method thereof. Background technique: [0002] With the development of crude oil in major oilfields in China, the water content of crude oil production fluid has increased significantly. In order to improve the recovery of crude oil, tertiary oil recovery technology has been widely used in major oilfields. The popularization of tertiary oil recovery technology increases crude oil production, and at the same time makes the composition of crude oil production fluid more complex, the viscosity increases, and the dehydration treatment becomes more difficult. Meet the needs of crude oil dehydration. Therefore, the crude oil electric dehydration technology is widely used in major oilfield dehydration sites due t...

AI Technical Summary

Problems solved by technology

The popularization of tertiary oil recovery technology increases crude oil production, and at the same time makes the composition of crude oil production fluid more complex, the viscosity increases, and the dehydration treatment becomes more difficult. Meet the needs of crude oil dehydration

There are two types of high-voltage lead wire devices for traditional crude oil dehydration transformers: one is a rigidly connected oil-filled structure, with steel pipes on the outside, insulated wires on the inside, and transformer oil in the middle. The main problem with this structure is that it needs to be checked before installation. And explosion-proof wiring device is accurately positioned, if the position changes during installation, it will be difficult to achieve assembly and sealing; in addition, due to the uneven distance between the inner wall of the steel pipe and the insulated wire, the internal electric field is unevenly distributed, so the insulation performance of the high-voltage wire is required. Higher , under long-term operation, insulation damage and discharge breakdown accidents are likely to occur; the other is a flexible connection oil-filled structure, the outside is a pressure-resistant rubber hose, the inside is an insulated wire, and the middle is filled with transformer oil. The location requirements are relatively low, but the strength of the external rubber hose is poor, and the rubber is prone to aging and deformation after long-term outdoor operation, resulting in transformer oil leakage and eventually leading to hidden dangers such as insulation failure.

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