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Liquid slip ring device of single-stand-column mooring production system

A technology of production system and slip ring device, which is applied in the direction of transportation and packaging, cargo handling equipment, floating buildings, etc., can solve the problems such as the overall center of gravity of a single column is on the upper side, the weight of the top of a single column is increased, and the requirements for sealing conditions are high, etc., to achieve Good sealing effect, low production cost and long service life

Active Publication Date: 2021-12-31
SHANDONG DINGSHENG SEIKO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the liquid slip ring device in the prior art has one and only one fluid channel. When different fluids need to be transmitted, multiple liquid slip rings are required to be arranged side by side in the vertical direction, which not only increases the production cost, but also The setting of multiple liquid slip rings increases the weight above the single column, which makes the overall center of gravity of the single column higher and the stability decreases
Moreover, when multiple liquid slip rings are arranged side by side in the vertical direction, the fluid input pipeline of the lower liquid slip ring needs to pass through the upper liquid slip ring, which not only costs a lot, but also occupies a large volume of the upper liquid slip ring , causing the overall volume of the liquid slip ring to increase, further leading to an increase in the weight above the single column
In addition, when the fluid input pipeline of the lower liquid slip ring passes through the upper liquid slip ring, it requires high sealing conditions to prevent leakage, resulting in higher overall production costs

Method used

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  • Liquid slip ring device of single-stand-column mooring production system
  • Liquid slip ring device of single-stand-column mooring production system
  • Liquid slip ring device of single-stand-column mooring production system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] refer to Figure 1-2 As shown, a liquid slip ring device of a single column mooring production system according to this embodiment includes a liquid slip ring stator 106 and a liquid slip ring rotor 105, and the liquid slip ring rotor 105 is sleeved on the liquid slip ring The outside of the stator 106 rotates around it and maintains a rotary seal; it is characterized in that: at least a first fluid channel and a second fluid channel that are independent of each other and kept sealed are arranged between the liquid slip ring stator 106 and the liquid slip ring rotor 105; The first fluid channel and the second fluid channel are respectively provided with at least two fluid inlets and at least two fluid outlets.

[0029] A first inlet 117 and a second inlet 118 are provided above the liquid slip ring stator 106, a first outlet 121, a second outlet 122 are provided on the outer side of the liquid slip ring rotor 105, a first inlet 117, a second inlet 118 and a first outlet...

Embodiment 2

[0037] On the basis of embodiment 1, with reference to figure 1 As shown, the upper end surface and the lower end surface of the outer diameter edge of the liquid slip ring stator 106 are provided with stator grooves, and the lower end surface stator grooves are sequentially provided with a lower end surface sealing ring 113, a lower end surface bearing 112 and a lower end surface anti-corrosion ring from inside to outside. Dust circle 102.

[0038]Further, the upper end surface and the lower end surface inside the outer diameter edge of the liquid slip ring rotor 105 are provided with rotor grooves that match the stator grooves, wherein the rotor grooves on the upper end surface are sequentially provided with upper end surface sealing rings from inside to outside 109, the upper end surface bearing 108 and the upper end surface dustproof ring 101.

[0039] In this embodiment, the lower end face sealing ring 113, the lower end face bearing 112 and the lower end face dustproof ...

Embodiment 3

[0041] On the basis of any of the above-mentioned embodiments, refer to Figure 1-2 As shown, the outer diameter edge of the liquid slip ring rotor 105 is provided with a radial sealing device abutting against the outer diameter edge of the liquid slip ring stator 106 .

[0042] Further, the radial sealing device includes a radial bearing 114 and a radial sealing ring 110 , and the radial sealing ring 110 is arranged on one side or both sides of the radial bearing 114 .

[0043] In this embodiment, the radial sealing device is arranged at the abutment of the outer diameters of the liquid slip ring rotor 105 and the liquid slip ring stator 106 , that is, at the edge of the fluid channel, for sealing the first fluid and the second fluid. Multiple radial bearings 114 are provided, mainly to convert sliding into rolling friction, thereby reducing resistance and wear caused by friction. One side or both sides of the radial bearing 114 is provided with a radial sealing ring 110, an...

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Abstract

The invention relates to a liquid slip ring device of a single-column mooring production system, which comprises a liquid slip ring stator and a liquid slip ring rotor, and the liquid slip ring rotor is sleeved outside the liquid slip ring stator and rotates around the liquid slip ring stator and keeps rotary sealing; the device is characterized in that at least a first fluid channel and a second fluid channel which are mutually independent and are kept sealed are arranged between the liquid slip ring stator and the liquid slip ring rotor; the first fluid channel and the second fluid channel are respectively provided with at least two fluid inlets and at least two fluid outlets. According to the invention, the purpose of multi-channel simultaneous transmission of different fluids can be realized, and each fluid channel is provided with a plurality of fluid inlets and fluid outlets for transmission, so that the fluid transmission efficiency can be improved, the fluid transmission time can be saved, and meanwhile, the purity of the transmitted fluid is improved through secondary sealing.

Description

technical field [0001] The invention relates to the field of offshore oilfield development, in particular to a liquid slip ring device for a single column mooring production system. Background technique [0002] In the development of offshore oilfields in my country at the present stage, many oil reservoirs are far from the land, and there are no oilfields that have been put into production to rely on. If these oil fields are developed according to the conventional mode, there are problems of high cost and low economy. [0003] The single-column mooring production system combines single-point mooring with the wellhead production platform. The oil and gas on the single-column wellhead production platform is transported to the floating LNG production storage and unloading device through the liquid slip ring device. The fluid can also be transported to the single-column wellhead production platform through the liquid slip ring device, thereby improving the economic efficiency ...

Claims

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Application Information

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IPC IPC(8): B63B27/34B63B21/50B63B35/44
CPCB63B27/34B63B21/50B63B35/4413
Inventor 岳涌刘化国李红生王光雪于亮
Owner SHANDONG DINGSHENG SEIKO