Vertical shaft explosion-proof fan for offshore oil and gas platform

Abstract

The invention relates to a vertical shaft explosion-proof fan for an offshore oil and gas platform. The vertical shaft explosion-proof fan comprises a base, a fan shaft, a bearing and a plurality of blades, the base is formed by casting a high-strength corrosion-resistant alloy material and is fixedly arranged at a preset position of an offshore oil and gas platform deck, and a mounting seat matched with the fan shaft is arranged at the upper part of the base; the fan shaft is a vertical shaft and is formed by forging and heat-treating high-strength alloy steel, the lower part of the fan shaft is fixedly arranged in the mounting seat of the base, and the bearing is arranged at the upper part of the fan shaft; the bearing is an explosion-proof rolling bearing, an inner ring of the bearing is in interference fit with the upper portion of the fan shaft, and an outer ring of the bearing is fixedly connected with the blades through a plurality of connecting rods, so that the blades are evenly distributed on the outer side of the fan shaft. The fan can be widely applied to the technical field of fan equipment.

Description

Technical Field

[0001] This invention relates to the field of wind turbine equipment technology, and specifically to a vertical axis explosion-proof wind turbine for offshore oil and gas platforms. Background Technology

[0002] Offshore oil and gas platforms, as important sites for the development of marine oil and gas resources, operate in extremely unique and harsh environments. Not only are they constantly exposed to the high salt spray and high humidity of the marine atmosphere, making equipment highly susceptible to corrosion, but the presence of flammable and explosive substances such as oil and gas on the platforms also creates a hazardous environment, imposing extremely high safety requirements on the equipment used.

[0003] Currently, offshore oil and gas platform power supply systems mainly use crude oil generators, turbine generators, and diesel generators. There are no application examples of wind turbines installed on offshore oil and gas platforms to provide power supply. Therefore, developing a wind turbine that is structurally robust, corrosion-resistant, explosion-proof, and can adapt to the special environment of offshore oil and gas platforms is of great practical significance. Summary of the Invention

[0004] To address the aforementioned problems, the purpose of this invention is to provide a vertical axis explosion-proof fan for offshore oil and gas platforms, thereby solving the problems of existing fans used on offshore oil and gas platforms having weak structures, poor corrosion resistance, and insufficient explosion-proof performance, making them difficult to adapt to the flammable and explosive hazardous environment of offshore oil and gas platforms.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A vertical axis explosion-proof fan for offshore oil and gas platforms, comprising: Base, fan shaft, bearings, and several blades; The base is cast from high-strength corrosion-resistant alloy material and is fixedly installed at a predetermined position on the deck of an offshore oil and gas platform. The upper part of the base is provided with a mounting seat that matches the wind turbine shaft. The fan shaft is a vertical shaft, made of high-strength alloy steel through forging and heat treatment. Its lower part is fixedly installed in the mounting seat of the base, and its upper part is provided with the bearing. The bearing is an explosion-proof rolling bearing, and the inner ring of the bearing is interference-fitted with the upper part of the fan shaft. The outer ring of the bearing is fixedly connected to each of the blades through several connecting rods, so that each of the blades is evenly distributed on the outside of the fan shaft.

[0006] Furthermore, the base has multiple evenly distributed mounting holes at its bottom, which are used to fix it to the deck of the offshore oil and gas platform via explosion-proof bolts and mounting holes.

[0007] Furthermore, the bearing is filled with high-temperature resistant and corrosion-resistant grease.

[0008] Furthermore, the grease is a lithium molybdenum disulfide-based grease.

[0009] Furthermore, an explosion-proof sealing device is provided at the mating point between the fan shaft and the bearing, and the explosion-proof sealing device completely seals the bearing. The contact point between the explosion-proof sealing device and the fan shaft is sealed with a rubber ring.

[0010] Furthermore, the explosion-proof sealing device is made of copper alloy material.

[0011] Furthermore, a pad for supporting the bearing is provided at the lower part of the bearing, and a rubber pad for reducing wear between the components is provided between the pad and the bearing.

[0012] Furthermore, the blade has at least three segments.

[0013] Furthermore, the blades are made of glass fiber reinforced plastic or titanium alloy.

[0014] Furthermore, the blade is rectangular with an arc shape.

[0015] The present invention has the following advantages due to the adoption of the above technical solutions: 1. Robust structure: Key components such as the base and turbine shaft are made of high-strength materials, with reliable connection methods. The overall structure can withstand the wind and wave loads in the complex marine environment and operate stably.

[0016] 2. Excellent corrosion resistance: All components are made of corrosion-resistant materials and have undergone appropriate anti-corrosion treatment, enabling them to be used for a long time in marine environments with high salt spray and high humidity, thus extending the service life of the equipment.

[0017] 3. Excellent explosion-proof performance: It adopts explosion-proof bearings, explosion-proof sealing devices and explosion-proof connecting bolts, etc., and the overall explosion-proof performance meets the usage requirements of flammable and explosive hazardous environments on offshore oil and gas platforms, which can effectively prevent the occurrence of safety accidents.

[0018] 4. High adaptability: Specifically designed for the environmental characteristics of offshore oil and gas platforms, it can operate stably in harsh environments and provide a reliable power supply for the platform.

[0019] Therefore, this invention can be widely applied in the field of wind turbine equipment technology. Attached Figure Description

[0020] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts. In the drawings: Figure 1This is a schematic diagram of the overall structure of a vertical axis explosion-proof fan for offshore, especially platform, provided in an embodiment of the present invention; The labels for the attached figures are as follows: 1. Base; 2. Fan shaft; 3. Pad; 4. Blades; 5. Connecting rod; 6. Bearing; 7. Deck. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention are within the scope of protection of the present invention.

[0022] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of exemplary embodiments according to the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0023] In some embodiments of the present invention, a vertical axis explosion-proof fan for offshore oil and gas platforms is provided. The fan is mainly composed of a base, a fan shaft, blades, and bearings. By adopting high-strength corrosion-resistant materials and a special explosion-proof structural design, it has a robust structure, corrosion resistance, and explosion-proof performance, and can adapt to the flammable and explosive hazardous environment of offshore oil and gas platforms, providing a stable power supply for the platform and ensuring its safe operation.

[0024] Example 1 like Figure 1 As shown, this invention provides a vertical axis explosion-proof fan for offshore oil and gas platforms, comprising: a base 1, a fan shaft 2, blades 4, and bearings 6. The base 1 is fixedly installed at a predetermined position on the deck 7 of the offshore oil and gas platform, and a mounting seat matching the fan shaft 2 is provided on the upper part of the base 1. The fan shaft 2 is a vertical shaft, made of high-strength alloy steel through forging and heat treatment. Its lower part is fixedly installed in the mounting seat of the base 1, and its upper part is provided with bearings 6. The bearings 6 are explosion-proof rolling bearings, and the inner ring of the bearings 6 is interference-fitted with the upper part of the fan shaft 2. The outer ring of the bearings 6 is fixedly connected to each blade 4 through several connecting rods 5, so that each blade 4 is evenly distributed on the outer side of the fan shaft 2.

[0025] Furthermore, the base 1 is cast from a high-strength, corrosion-resistant alloy material. The bottom of the base has multiple evenly distributed mounting holes, and it is fixedly connected to the deck of the offshore oil and gas platform using explosion-proof bolts. Preferably, in this embodiment, the bottom of the base 1 has six evenly distributed mounting holes. The upper part of the base 1 has a cylindrical mounting seat that matches the bearing 2.

[0026] In this embodiment, the base is designed to withstand various forces generated during the operation of the wind turbine, ensuring the overall stability of the wind turbine. At the same time, the selection of corrosion-resistant materials can effectively resist corrosion in the marine environment.

[0027] Furthermore, the bearing 6 is filled with a high-temperature resistant and corrosion-resistant grease. Preferably, the grease can be a lithium molybdenum disulfide-based grease. In this embodiment, the use of an explosion-proof rolling bearing can effectively prevent sparks from being generated due to friction during rotation, while the selection of the grease ensures good lubrication and service life of the bearing 6.

[0028] Furthermore, an explosion-proof sealing device is provided at the mating point between the fan shaft 2 and the bearing 6, and the explosion-proof sealing device completely seals the bearing 6. The contact point between the explosion-proof sealing device 6 and the fan shaft is sealed with a rubber ring to prevent external flammable gas from being ignited if an electric spark is generated inside the bearing, thus playing an explosion-proof role.

[0029] Furthermore, the explosion-proof sealing device is made of copper alloy material, which can effectively prevent external flammable and explosive gases from entering the bearing and at the same time prevent the grease inside the bearing from leaking.

[0030] Furthermore, a pad 3 is provided at the lower part of the bearing 6 to support the bearing 6, and a rubber pad is provided between the pad 3 and the bearing 6 to reduce wear between the components.

[0031] Furthermore, the blade 4 has at least 3 blades, which are evenly distributed on the upper part of the fan shaft 2.

[0032] Furthermore, blade 4 is made of glass fiber reinforced plastic or titanium alloy, and blade 4 is rectangular with an arc shape. In this embodiment, the material of blade 4 is lightweight, high-strength, and corrosion-resistant, while the arc-shaped blade can improve the utilization efficiency of wind energy.

[0033] When in use, the vertical axis explosion-proof fan is fixedly connected to the deck of an offshore oil and gas platform using high-strength bolts through the mounting holes at the bottom of the base. After installation, the blades rotate under the action of wind power, realizing the conversion of wind energy into mechanical energy. Then, the mechanical energy is converted into electrical energy through related power generation equipment to provide power supply for the offshore oil and gas platform.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A vertical axis explosion-proof wind turbine for offshore oil and gas platforms, characterized in that, Comprise: Base, fan shaft, bearing, several blades; The base is made of high-strength corrosion-resistant alloy material, and is fixedly arranged at the preset position of the deck of the offshore oil and gas platform, and the upper part of the base is provided with a mounting seat matched with the fan shaft; The fan shaft is a vertical shaft, which is made of high-strength alloy steel material by forging and heat treatment processing, and the lower part is fixedly arranged in the mounting seat of the base, and the upper part is provided with the bearing; The bearing is an explosion-proof rolling bearing, and the inner ring of the bearing is interference-fitted with the upper part of the fan shaft, and the outer ring of the bearing is fixedly connected with each blade through a plurality of connecting rods, so that each blade is uniformly distributed on the outer side of the fan shaft.

2. A vertical axis explosion-proof wind turbine for offshore oil and gas platforms as claimed in claim 1, characterised in that, The bottom of the base is provided with a plurality of uniformly distributed mounting holes, which are fixedly connected with the deck of the offshore oil and gas platform through explosion-proof bolts and mounting holes.

3. A vertical axis explosion-proof wind turbine for offshore oil and gas platforms as claimed in claim 1, wherein, The bearing is filled with high-temperature-resistant and corrosion-resistant lubricating grease.

4. A vertical axis explosion-proof wind turbine for offshore oil and gas platforms as claimed in claim 3, characterised in that, The lubricating grease is lithium-based molybdenum disulfide grease.

5. A vertical axis explosion-proof wind turbine for offshore oil and gas platforms as claimed in claim 1, wherein, An explosion-proof sealing device is also arranged at the joint of the fan shaft and the bearing, and the explosion-proof sealing device seals the bearing completely, and a rubber ring is used for sealing the contact part of the explosion-proof sealing device and the fan shaft.

6. A vertical axis explosion-proof wind turbine for offshore oil and gas platforms as claimed in claim 5, characterised in that, The explosion-proof sealing device is made of copper alloy material.

7. A vertical axis explosion-proof wind turbine for offshore oil and gas platforms as claimed in claim 1, wherein, The lower part of the bearing is provided with a backing plate for supporting the bearing, and a rubber pad is arranged between the backing plate and the bearing for reducing the wear between the parts.

8. A vertical axis explosion-proof wind turbine for offshore oil and gas platforms as claimed in claim 1, wherein, The blade is provided with at least three blades.

9. A vertical axis explosion-proof wind turbine for offshore oil and gas platforms as claimed in claim 1, wherein, The blade is made of glass fiber reinforced plastic or titanium alloy material.

10. A vertical axis explosion-proof wind turbine for offshore oil and gas platforms as claimed in claim 1, wherein, The shape of the blade is a long rectangle with an arc.

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