CN214304176U

CN214304176U - A anticorrosive device and offshore wind turbine generator for offshore wind turbine generator system

Info

Publication number: CN214304176U
Application number: CN202120452539.6U
Authority: CN
Inventors: 王林; 张斌
Original assignee: Guohua Jiangsu Wind Power Co ltd
Current assignee: Guohua Jiangsu Wind Power Co ltd
Priority date: 2021-03-03
Filing date: 2021-03-03
Publication date: 2021-09-28
Anticipated expiration: 2031-03-03

Abstract

The utility model discloses an anti-corrosion device for an offshore wind generating set, which comprises an exhaust fan arranged at the bottom of a tower cylinder, and an exhaust pipeline and an air inlet pipeline which are led out from the tower cylinder and are arranged in a staggered manner, wherein the exhaust pipeline and the air inlet pipeline are led out of the tower cylinder from the lower part of a tower cylinder door; and by taking the bottom of the tower barrel as a reference, the height h1 of the pipe orifice of the exhaust pipeline arranged outside the tower barrel is smaller than the height h2 of the pipe orifice of the air inlet pipeline arranged outside the tower barrel. This device passes through the exhaust fan with the corrosive gas in the tubular pile outside the tower section of thick bamboo of exhaust duct's export discharge, simultaneously the outer air of tower section of thick bamboo enters into a tower section of thick bamboo through admission line, the sea salt ion in tubular pile and the tower section of thick bamboo has been got rid of effectively, acid material and marsh gas, and the humidity of air in the tower section of thick bamboo has been reduced, the motor has been reduced, the corrosion damage of accurate part and electronic system etc. can also dispel the heat to the electrical element system after the sealed simultaneously, the wind generating set service life has been prolonged, the security of wind generating set has been improved.

Description

A anticorrosive device and offshore wind turbine generator for offshore wind turbine generator system

Technical Field

The utility model relates to an offshore wind power generation field, in particular to an anticorrosive device and offshore wind power generation machine for offshore wind power generation unit.

Background

As a clean energy utilization mode, the offshore wind power generation technology fully utilizes continuous strong wind in offshore environment to generate power. Wind energy is a renewable resource, so in recent years, offshore wind power generation technology is favored by various countries to become the main thrust of global wind power wave, and offshore wind power of China develops rapidly and has huge prospects.

According to the geological conditions of the sea area in China and the experience of offshore wind power construction, the single-pile foundation form is a more reasonable foundation structure form for the water depth and the geological conditions when the surface layer silt of the Bohai sea and the east sea is thinner. However, when a single-pile tower barrel is pricked into the seabed, the bottom section of the tower barrel can accumulate seabed sludge and enter a small amount of seawater, and anaerobic organisms in the sludge can generate methane under the condition of long-term oxygen deficiency.

The main component of biogas is methane. The biogas consists of 50-80% of methane (CH 4), 20-40% of carbon dioxide (CO 2), 0-5% of nitrogen (N2), less than 1% of hydrogen (H2), less than 0.4% of oxygen (O2), 0.1-3% of hydrogen sulfide (H2S) and the like; because the methane contains a small amount of hydrogen sulfide, the methane has slight odor and has the characteristics similar to natural gas; if the air contains 8.6-20.8% (by volume) of methane, explosive mixed gas is formed. The hydrogen sulfide gas is a colorless and inflammable acid gas, has a density higher than that of air, can be dissolved in water, can overflow from the water when being heated, and has high toxicity.

Personnel of the offshore wind generating set have life safety threat when entering the tower barrel for operation and maintenance, and meanwhile, the gas has corrosiveness on electric elements and mechanical parts. Compared with a land unit, the offshore unit is worse in corrosion environment, the marine corrosion not only buries a great potential safety hazard for the wind turbine, reduces the unit operation life, but also improves the construction and operation maintenance cost of the wind power plant. Therefore, long-term effective anticorrosion measures are taken, and the method has very important significance for ensuring the safety of the offshore wind turbine generator. Some devices for solving the problem have been proposed, but the structural layout of these devices is not reasonable, which results in poor corrosion prevention effect and also causes damage to some electrical components. Therefore, an anti-corrosion device for an offshore wind generating set and an offshore wind generator are provided.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides an anticorrosive device for offshore wind generating set, through pipeline structure's design and overall arrangement, when guaranteeing anticorrosive effect, promoted the utilization ratio of device, can also play the guard action to electrical element simultaneously, can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: an anticorrosion device for an offshore wind generating set comprises an exhaust fan arranged at the bottom of a tower barrel, and an exhaust pipeline and an air inlet pipeline which are led out from the tower barrel in a staggered manner, wherein the exhaust pipeline and the air inlet pipeline are led out of the tower barrel from the lower part of a tower barrel door;

and by taking the bottom of the tower barrel as a reference, the height h1 of the pipe orifice of the exhaust pipeline arranged outside the tower barrel is smaller than the height h2 of the pipe orifice of the air inlet pipeline arranged outside the tower barrel.

Further, exhaust duct includes first pipeline and the second pipeline and the third pipeline of direct intercommunication, first pipeline one end and the mouth of pipe that admits air of air exhauster intercommunication, the first pipeline other end suspension is in the tubular pile, the mouth of pipe and the second pipeline intercommunication of giving vent to anger of air exhauster, the third pipeline is drawn forth outside tower section of thick bamboo from tower section of thick bamboo door below.

Further, the second pipeline is a hose, and the first pipeline and the third pipeline are stainless steel pipes.

Further, the air inlet pipeline comprises a pipeline A, a pipeline B and a pipeline C which are sequentially communicated, and the bottom end of the pipeline A is suspended in the tubular pile.

Further, the pipeline B is a hose, the pipeline A and the pipeline C are stainless steel pipes, and the pipeline C is led out of the tower from the lower portion of the tower door.

Further, the length L1 of the conduit a is less than the length L2 of the first conduit.

Furthermore, the exhaust pipeline arranged in the tower barrel is arranged along one side close to a tower barrel door on the tower barrel, and the air inlet pipeline arranged in the tower barrel penetrates through the tower barrel and is arranged along the inner wall of the tower barrel on the opposite side of the exhaust pipeline.

An offshore wind turbine is internally provided with at least one corrosion prevention device.

Compared with the prior art, the utility model discloses following beneficial effect has:

firstly, an exhaust pipeline and an air inlet pipeline are led out of the tower from the lower part of a tower door, the exhaust fan runs continuously, methane is discharged from the interior of the exhaust fan, the density of toxic gas of hydrogen sulfide in the methane is higher than that of air, the toxic gas tends to flow downwards, the toxic gas is arranged below the tower door and diffuses downwards, and therefore, when an operator enters the exhaust fan from the tower door, the body health of the operator cannot be influenced by the toxic gas accumulated instantly;

secondly, taking the bottom of the tower barrel as a reference, the height h1 of a pipe orifice of the exhaust pipeline arranged outside the tower barrel is smaller than the height h2 of a pipe orifice of the intake pipeline arranged outside the tower barrel, the design has the advantages that the distance between the exhausted toxic gas and the fresh air entering the tower barrel is pulled as far as possible, and if the toxic gas is not staggered, the harmful gas which is just exhausted can not enter the pipe pile and the tower barrel, so that the air updating effect is influenced;

the mode of combining the stainless steel pipe and the hose is convenient for protecting the electrical elements in the tower barrel better on the premise of integral fixation, and the damage of the electrical elements caused by slight shaking is avoided;

fourthly, the length L1 of the pipeline A is smaller than the length L2 of the first pipeline, and the design of the height difference is convenient for forming air flow and accelerating air circulation;

fifthly, the exhaust pipeline arranged in the tower barrel is arranged along one side close to a tower barrel door on the tower barrel, the air inlet pipeline arranged in the tower barrel penetrates through the tower barrel and is arranged along the inner wall of the tower barrel on the opposite side of the exhaust pipeline, the design has the advantages that the contact distance between harmful gas and fresh air is increased, the effect of updating the air by the exhaust fan is improved under the condition that the air flow is not influenced, the closer the distance is, the more likely the fresh air which just enters is to be extracted instantly, and the utilization efficiency of the exhaust fan is low;

to sum up, this device passes through the exhaust fan with the corrosive gas in the tubular pile outside the tower section of thick bamboo of exhaust duct's export discharge, simultaneously the air outside the tower section of thick bamboo enters into a tower section of thick bamboo through admission line, the sea salt ion in tubular pile and the tower section of thick bamboo has been got rid of effectively, acid material and marsh gas, and the humidity of air in the tower section of thick bamboo has been reduced, the corrosion damage of motor, precision part and electronic system etc. has been reduced, simultaneously can also dispel the heat to the electric elements system after the sealing, the operating life of wind generating set has been prolonged, the security of wind generating set has been improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the anti-corrosion device for the offshore wind turbine generator system of the present invention;

figure 2 is the utility model discloses an anticorrosive device exhaust duct and admission line structural sketch for offshore wind generating set.

In the figure: 1. a tower drum; 2. an exhaust fan; 3. an exhaust duct; 4. an air intake duct; 5. a tubular pile; 6. a tower door; 31. a first conduit; 32. a second conduit; 33. a third pipeline; 41. a pipeline A; 42. a pipeline B; 43. and a pipeline C.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Example 1

Can be provided with tower section of thick bamboo door 6 on current single pile foundation structure type's offshore wind power generation machine's a tower section of thick bamboo 1, tower section of thick bamboo door 6 is mainly for the convenience condition in understanding a tower section of thick bamboo 1 and be used for electric elements's maintenance, the fan is when the design, the lower extreme of tower section of thick bamboo door 6 can be followed tower section of thick bamboo 1 inside and is drawn forth a radiating pipe who is used for electric elements heat dissipation in a tower section of thick bamboo 1, this type radiating pipe both sides can set up fixed pipe support, be equipped with the detachable apron on the fixed pipe support, when this embodiment is implemented, utilize this to open the apron structure of dismantlement, with its whole change, change new opening the apron that has two holes, thereby these two holes are used for exhaust duct 3 and admission duct 4 to pass and make exhaust duct 3 and admission duct 4 draw forth to tower section of thick bamboo 1 outside and atmospheric contact.

As shown in fig. 1-2, the utility model relates to an anti-corrosion device for offshore wind turbine generator system, which comprises an exhaust fan 2 (commercially available, the wiring method adopts the prior art) arranged at the bottom of a tower 1, and an exhaust pipeline 3 and an air inlet pipeline 4 led out from the tower 1 and staggered, wherein the exhaust pipeline 3 arranged in the tower 1 is arranged along one side close to a tower door 6 on the tower 1, the air inlet pipeline 4 arranged in the tower 1 penetrates through the tower 1 and is arranged along the inner wall of the tower 1 at the opposite side of the exhaust pipeline 3, the exhaust pipeline 3 comprises a first pipeline 31 and a second pipeline 32 and a third pipeline 33 which are directly communicated, one end of the first pipeline 31 is communicated with an air inlet pipe orifice of the exhaust fan 2, the other end of the first pipeline 31 is suspended in a tubular pile 5, the air outlet pipe orifice of the exhaust fan 2 is communicated with the second pipeline 32, the third pipeline 33 is led out from the lower part of the tower door 6 to the outside of the tower 1, the second pipeline 32 is a flexible pipe, and the first pipeline 31 and the third pipeline 33 are stainless steel pipes;

the air inlet pipeline 4 comprises a pipeline A41, a pipeline B42 and a pipeline C43 which are sequentially communicated, the bottom end of the pipeline A41 is suspended in the tubular pile 5, the pipeline B42 is a hose, the pipeline A41 and the pipeline C43 are stainless steel pipes, and the pipeline C43 is led out of the tower 1 from the lower part of the tower door 6;

the length L1 of the conduit a41 is less than the length L2 of the first conduit 31;

taking the bottom of the tower barrel 1 as a reference, the height h1 of a pipe orifice of the exhaust pipeline 3 outside the tower barrel 1 is smaller than the height h2 of a pipe orifice of the intake pipeline 4 outside the tower barrel 1;

during implementation, the hard pipelines are connected and locked through the hoop part, the hard pipelines and the hose are locked and installed through the sealant, the steel wire rope and the hose hoop part, and the hard pipelines are fixed by adopting a support structure such as an existing structure of a triangular support.

It should be noted that the utility model relates to a theory of operation for marine wind generating set's anticorrosive device is through the corrosive gas in the air exhauster 2 with the tubular pile from down and go up in proper order outside the export discharge tower section of thick bamboo 1 of exhaust duct 3 that comprises first pipeline 31, second pipeline 32 and third pipeline 33, the outer air of tower section of thick bamboo 1 enters into tower section of thick bamboo 1 through admission line 4 simultaneously, an air current has been formed, thereby guarantee the gas quality in tubular pile 5 and the tower section of thick bamboo 1, avoid harmful gas to gather and the safety risk that brings.

Example 2

As shown in fig. 1, an offshore wind turbine has an anticorrosion device of example 1 disposed therein.

Example 3

An offshore wind turbine having two corrosion protection devices of example 1 disposed therein.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an anticorrosive device for offshore wind generating set which characterized in that: the device comprises an exhaust fan (2) arranged at the bottom of a tower drum (1), and an exhaust pipeline (3) and an air inlet pipeline (4) which are led out from the tower drum (1) in a staggered manner, wherein the exhaust pipeline (3) and the air inlet pipeline (4) are led out of the tower drum (1) from the lower part of a tower drum door (6);

by taking the bottom of the tower barrel (1) as a reference, the height h1 of the pipe orifice of the exhaust pipeline (3) arranged outside the tower barrel (1) is smaller than the height h2 of the pipe orifice of the intake pipeline (4) arranged outside the tower barrel (1).

2. The corrosion protection device for offshore wind turbine generator systems according to claim 1, characterized in that: exhaust duct (3) include second pipeline (32) and third pipeline (33) of first pipeline (31) and direct intercommunication, the mouth of pipe intercommunication that admits air of first pipeline (31) one end and air exhauster (2), first pipeline (31) other end suspension is in tubular pile (5), the mouth of pipe and second pipeline (32) intercommunication of giving vent to anger of air exhauster (2), third pipeline (33) are drawn forth outside tower section of thick bamboo (1) from tower section of thick bamboo door (6) below.

3. The corrosion protection device for offshore wind turbine generator systems according to claim 2, characterized in that: the second pipeline (32) is a hose, and the first pipeline (31) and the third pipeline (33) are stainless steel pipes.

4. An anti-corrosion device for an offshore wind turbine unit according to claim 3, characterized in that: the air inlet pipeline (4) comprises a pipeline A (41), a pipeline B (42) and a pipeline C (43) which are sequentially communicated, and the bottom end of the pipeline A (41) is suspended in the tubular pile (5).

5. The corrosion protection device for offshore wind turbine generator systems according to claim 4, characterized in that: the pipeline B (42) is a hose, the pipeline A (41) and the pipeline C (43) are stainless steel pipes, and the pipeline C (43) is led out of the tower drum (1) from the lower part of the tower drum door (6).

6. The corrosion protection device for offshore wind turbine generator systems according to claim 5, characterized in that: the length L1 of the conduit A (41) is less than the length L2 of the first conduit (31).

7. The corrosion protection device for offshore wind turbine generator systems according to claim 6, characterized in that: the exhaust pipeline (3) arranged in the tower drum (1) is arranged along one side close to a tower drum door (6) on the tower drum (1), and the air inlet pipeline (4) arranged in the tower drum (1) penetrates through the tower drum (1) and is arranged along the inner wall of the tower drum (1) on the opposite side of the exhaust pipeline (3).

8. Offshore wind turbine, characterized in that at least one corrosion protection device according to any of claims 1-7 is arranged inside it.