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Submarine natural gas hydrate crushing equipment

A technology for crushing equipment and natural gas, applied in drilling equipment, drilling equipment and methods, grain processing, etc., can solve problems such as difficulty in achieving sealing performance, difficulty in fixing submersible pumps, etc., achieving long maintenance-free time and reducing mining. cost effect

Inactive Publication Date: 2018-06-22
HANGZHOU YUNFENG IND DESIGN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

——In this patent solution, since the metal seal isolation shield is not completely closed only at the lower end and the shaft seal of the motor, the submersible pump must keep the motor at the upper liquid pump to ensure its sealing effect, so in use Generally, it is necessary to use fixing parts to fix the submersible pump in a stable position before it can be used. When this type of submersible pump is used on a deep seabed (for example, when the depth of combustible ice is mined on the seabed, the depth exceeds 300 meters), the fixing of this type of submersible pump It is very difficult, and it is difficult to achieve the effect of maintaining the sealing performance for a long time with ordinary submersible pumps.

Method used

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  • Submarine natural gas hydrate crushing equipment
  • Submarine natural gas hydrate crushing equipment
  • Submarine natural gas hydrate crushing equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] according to Figure 1 to Figure 10 As shown, the subsea natural gas hydrate crushing equipment described in this embodiment includes a car body 1 and a longitudinally arranged impact hammer assembly 6 installed under the car body.

[0055] Both sides of the rear part of the lower end of the car body, and the middle of the front part of the lower end of the car body are respectively equipped with electric push rods 5 arranged longitudinally, and the push rod motors 50 of each of the electric push rods are installed on the upper end of the electric push rod and the push rod The output shaft of the motor is set downward (the installation direction of the push rod motor is opposite to that of the conventional electric push rod, and the other transmission parts and connection methods are the same); Straight running wheels 21 are installed at the lower ends of two wheel seats at the rear portion of the body, and universal wheels 22 are installed at the lower ends of the whee...

Embodiment 2

[0085] to combine Figure 11 As shown, the present embodiment makes the following improvements on the basis of Embodiment 1: each motor is powered by a power generation device installed on the seabed; the power generation device includes an internal combustion engine 91, and a generator 92 connected to the output shaft of the internal combustion engine; The intake end of the internal combustion engine is connected with a mixer 93, and the mixer is connected with an oxygen intake pipe and a natural gas intake pipe; the outlet end of the internal combustion engine is connected with an exhaust pipe, and the other end of the exhaust pipe is connected with a cooling degassing tank 96; The other end of the oxygen inlet pipe is connected to the oxygen bottle, and the oxygen inlet pipe is installed near the mixer with an air pump a95; the natural gas inlet pipe is connected with the gas outlet pipe of the combustible ice mining well, and the natural gas inlet pipe is installed near the...

Embodiment 3

[0089] to combine Figure 12 and Figure 13 As shown, this embodiment makes the following improvements on the basis of Embodiment 1 or 2: the submarine combustible ice crushing equipment is powered by a suspension transmission line 8, and the suspension transmission line includes a cable sheath 81 made of insulating material, and the inner surface of the cable sheath An isolation layer is formed along the length direction, and the two sides of the isolation layer inside the cable sheath are the transmission line cavity 811 and the inflatable cavity 812 respectively, and more than two transmission lines 82 are pierced in the transmission line cavity, and the inflatable cavity Two electrolytic conductors 84 are worn in the body, and the two electrolytic conductors are installed in the water-absorbing sponge strip 83 for isolating the two electrolytic conductors. of sodium hydroxide solution.

[0090] The cable sheath is located in the air-filled cavity and is equidistantly for...

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Abstract

The invention belongs to the field of production equipment for natural gas hydrates on submarine surface layers and particularly relates to submarine natural gas hydrate crushing equipment. The submarine natural gas hydrate crushing equipment comprises a vehicle body and an impact hammer assembly mounted below the vehicle body and arranged longitudinally. The impact hammer assembly comprises a lifting seat slidably connected with the front end of the lower portion of an impact hammer mounting frame at the lower end of the vehicle body in the vertical direction. One or more vertically-arrangedguide rods are fixedly connected to the lower end of the lifting seat, and an impact hammer body is slidably mounted on the guide rods. An impact motor is fixedly mounted on the lifting seat, whereinan output shaft of the impact motor is vertically downward and is used for lifting the impact hammer body. The impact motor comprises a hard shell made of non-magnetic-conducting metal materials and filled with insulating oil. The impact motor of the submarine natural gas hydrate crushing equipment is arranged in the mode that the output shaft is vertically downward, and by combining the motor shell filled with the insulating oil, it is ensured that the water inflowing situation of the motor is avoided after long-time working. The maintenance-free time is long, and the flammable ice productioncost is reduced.

Description

technical field [0001] The invention belongs to the field of seabed combustible ice mining equipment, and in particular relates to a seabed natural gas hydrate crushing equipment. Background technique [0002] In the mining process of combustible ice (natural gas hydrate) on the seabed surface, it is necessary to break the combustible ice into small pieces and then put it into a sealed tank and then transport it to the sea surface. So far, no open literature has found that it is suitable for long-term use on the seabed. Equipment for combustible ice mining on the surface. As a mechanical device working in deep water, its executive components generally use motors as the driving force. [0003] On the other hand, the document number CN102195387B discloses a sealing structure of a submersible pump, which includes a conventional structural form of a drag motor driven by its rotating shaft by a rotor and a stator embedded in a winding, and a liquid pump located at the outermost ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/01E21B7/124E21B1/00B02C21/02B02C1/14
CPCB02C1/14B02C21/02E21B1/00E21B4/12E21B7/12E21B7/124E21B41/0099E21B43/01
Inventor 喻文武
Owner HANGZHOU YUNFENG IND DESIGN CO LTD