CN102979685A - Installation equipment and installation method for impeller in offshore wind generating set - Google Patents

Abstract

The invention discloses an installation device and an installation method for an impeller in an offshore wind power generator, and relates to the technical field of wind power generators. It aims to solve the problem that the impeller is prone to overturning when installing an impeller in an offshore wind power generator. The installation equipment includes: a cylindrical barrel and supporting legs; one end of the cylindrical barrel is welded on the deck of the ship; the other end edge of the cylindrical barrel is provided with a flange surface, and the flange surface is provided with a flange for installing the hub in the impeller. hole; when the installation equipment is used for a double-blade impeller, the number of supporting legs is at least one, and at least one first opening is provided on the wall of the cylindrical cylinder at a position adjacent to the deck; at least one supporting leg is fixed on at least In a first opening; when the installation equipment is used for a three-blade or more blade impeller, the number of supporting legs is at least two, and at least two second second openings are provided on the wall of the cylindrical tube adjacent to the deck. opening; at least two support legs are respectively fixed in at least two second openings.

Description

Installation equipment and installation method for impellers in offshore wind turbines

technical field

The invention relates to the technical field of wind power generators, in particular to a device and method for installing impellers in offshore wind power generators.

Background technique

When installing the impeller in the offshore wind turbine, the components of the impeller (blades, hubs, etc.) need to be transported by ship to the installation platform of the offshore wind turbine, which is usually the deck of the ship. Then complete the assembly of the impeller in the wind power generating set on the installation platform, and then hoist the assembled impeller to the designated installation position high in the sky.

During the impeller assembly process on the installation platform, since the installation platform is usually the deck of the ship, the deck width of the ship is generally about 30-40 meters, and the diameter of the impeller is usually more than 100 meters. Therefore, the blades in the impeller are basically suspended on the ship. outside of the deck. Moreover, due to the limited space on the deck, the blades in the impeller cannot be supported by brackets or cranes, so the impeller is prone to tipping over.

Contents of the invention

Embodiments of the present invention provide an installation device and installation method for an impeller in an offshore wind power generating set, which solves the problem that the impeller is easy to overturn when the existing installation method is used to install the impeller in the offshore wind generating set.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

An installation device for an impeller in an offshore wind power generating set, comprising a cylindrical barrel and supporting legs; one end face of the cylindrical barrel is welded on the deck of a ship; a flange is provided on the edge of the other end face of the cylindrical barrel On the flange surface, there is a hole for installing the hub of the impeller; when the installation device is used for a double-blade impeller, the number of the supporting legs is at least one, and the cylinder of the cylindrical cylinder At least one first opening is provided on the wall adjacent to the deck; the at least one support leg is fixed in the at least one first opening; when the installation device is used for a three-blade or more blade impeller When the number of the supporting legs is at least two, at least two second openings are provided on the wall of the cylindrical tube adjacent to the deck; the at least two supporting legs are fixed respectively within the at least two second openings.

Preferably, the support leg is a long support leg or a short support leg, and the length of the long support leg is greater than the length of the short support leg; when the installation device is used for a double-blade impeller, the support leg includes at least One long support leg; when the mounting device is used for a three-blade or more-blade impeller, the support leg comprises at least two long support legs, wherein the angle between the two long support legs is equal to 120 degrees.

Preferably, the installation device further includes a support leg box; the number of the support leg boxes is equal to the number of the support legs; the support leg box is welded and fixed on the first opening or the second In the opening; the supporting legs are respectively sleeved in the supporting leg boxes and protrude from the supporting leg boxes.

Wherein, when the number of the supporting leg boxes is at least two, one end of the supporting leg boxes inserted into the cylindrical tube is welded together.

Wherein, the supporting leg box is a long supporting leg box or a short supporting leg box, the long supporting leg is set in the long supporting leg box, and the short supporting leg is set in the short supporting leg box; A length of the long leg box outside the cylindrical barrel is greater than a length of the short leg box outside the cylindrical barrel.

Preferably, the number of the long support legs is three, and the number of the short support legs is also three, wherein three of the long support legs are adjacent, and each of the long support legs is connected to one of the The short supporting legs are collinear, and the angle between two adjacent long supporting legs is equal to 60 degrees.

Preferably, a fixing unit is provided between the supporting leg box and the supporting leg, for fixing the supporting leg in the supporting leg box.

Wherein, the fixing unit is a thin steel plate.

An installation method for an impeller in an offshore wind power generating set, using the above-mentioned installation equipment for an impeller in an offshore wind generating set, the impeller is a double-blade impeller, and the installation method includes:

(1), the hub of the impeller is installed on the flange surface of the cylindrical tube in the installation device;

(2) Install the first blade of the impeller on the hub directly above the long support leg in the installation device;

(3) Install the second blade of the impeller on the hub.

An installation method for an impeller in an offshore wind power generating set, using the above-mentioned installation equipment for an impeller in an offshore wind generating set, the impeller is a three-blade impeller, and the installation method includes:

(1), the hub of the impeller is installed on the flange surface of the cylindrical tube in the installation device;

(2), installing the first blade of the impeller on the hub directly above a long support leg in the installation device;

(3), installing the second blade of the impeller on the hub directly above the other long support leg in the installation device;

(4) Installing the third blade of the impeller on the hub.

In the installation equipment and installation method for the impeller in the offshore wind power generating set provided by the embodiment of the present invention, in the process of assembling the impeller, since the cylindrical tube has the first opening or the second opening, the supporting legs are fixed on the first opening Or in the second opening, so that the cylindrical tube and the supporting legs form a whole, and the supporting legs can transmit the pressure to the deck of the ship, thereby preventing the cylindrical tube from being overwhelmed by excessive force, and thus avoiding contact with the The impeller fixedly attached to the cylindrical barrel overturned.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings that are required in the description of the embodiments or the prior art.

Fig. 1a is a schematic diagram of an installation device for an impeller in an offshore wind power generating set provided by an embodiment of the present invention;

Fig. 1b is a schematic diagram of another installation device for impellers in offshore wind turbines provided by an embodiment of the present invention;

Fig. 2 is a schematic diagram of yet another installation device for impellers in offshore wind turbines provided by an embodiment of the present invention;

Fig. 3 is a flow chart of a method for installing an impeller in an offshore wind power generating set provided by an embodiment of the present invention;

FIG. 4 is a flow chart of another method for installing impellers in offshore wind turbines provided by an embodiment of the present invention;

Fig. 5 is a schematic diagram of another installation device for an impeller in an offshore wind power generating set provided by an embodiment of the present invention.

Detailed ways

The embodiment of the present invention provides an installation device for impellers in offshore wind power generators, as shown in Figure 1a and Figure 1b, including a cylindrical tube 12 and a supporting leg 13; one end of the cylindrical tube 12 is welded on the deck of the ship 11; the other end edge of the cylindrical tube 12 is provided with a flange surface 121, and the flange surface 121 is provided with a hole 1211 for installing the hub in the impeller 14; when the above installation equipment is used for the double-blade impeller 14, the supporting legs The number of 13 is at least one, and the position adjacent to the deck 11 on the wall of the cylindrical tube 12 is provided with at least one first opening 122 as shown in Figure 1a; at least one supporting leg 13 is fixed on at least one first opening 122; when the above installation equipment is used for three or more blade impellers 14, the number of supporting legs 13 is at least two, and the position adjacent to the deck 11 on the cylinder wall of the cylindrical cylinder 12 is shown in Figure 1b At least two second openings 123 are provided; at least two supporting legs 13 are respectively fixed in the at least two second openings 123 .

Since one end face of the cylindrical barrel 12 is welded on the deck 11 of the ship, the cylindrical barrel 12 is fixed together with the deck 11 of the ship. The other end surface of the cylindrical barrel 12 is provided with a flange surface 121, and the flange surface 121 is provided with a hole 1211 for installing the hub in the impeller 14, so that the hub is fixed on the cylindrical barrel 12 by bolts.

When the number of supporting legs 13 is at least one, as shown in FIG. 1 a , the above-mentioned installation equipment can be used to complete the assembly of the double-blade impeller 14 on the deck 11 of the ship. Since at least one first opening 122 is provided at the position adjacent to the deck 11 on the cylinder wall of the cylindrical cylinder 12, at least one supporting leg 13 is fixed in the at least one first opening 122, so the supporting leg 13 and the cylindrical cylinder 12 form a whole. When the first blade 142 is assembled on the hub 141 directly above the support leg 13, the first blade 142 and the hub 141 form the impeller 14, and the impeller 14 exerts a large force on the whole formed by the cylindrical tube 12 and the support leg 13. Pressure, the power can be transmitted to the deck 11 of the ship through the support legs 13, thereby preventing the impeller 14 from easily falling over because the impeller 14 cannot be supported by a bracket or a crane when the impeller 14 is assembled.

When assembling the second blade 143, since the first blade 142 has been assembled on the hub 141, one side of the cylindrical barrel 12 is pressed by the first blade 142, and after the second blade 143 is assembled on the hub 141, Another pressure will be given to the cylindrical barrel 12. Since the angle between the two blades is 180 degrees, that is, collinear distribution, the pressures of the two blades acting on the cylindrical barrel 12 are equal in magnitude, in the same direction, and have the same fulcrum. The moments cancel each other out. Therefore, it is avoided that when the impeller 14 is assembled, the impeller 14 fixed on the cylindrical barrel 12 will be overturned when the support or the crane cannot be used to support the impeller 14 .

When the number of supporting legs 13 is at least two, as shown in FIG. 1 b , the above-mentioned installation equipment can be used to complete the assembly of the impeller 14 with three or more blades on the deck 11 of the ship. Since at least two second openings 123 are provided at positions adjacent to the deck 11 on the cylinder wall of the cylindrical cylinder 12; at least two support legs 13 are respectively fixed in at least two second openings 123, so when the first When the blades are assembled to the hub directly above the support legs 13, the impeller 14 will not tip over as in the case of the two-bladed impeller 14 described above.

When the second blade is assembled, the cylindrical barrel 12 will be subjected to the pressure of the second blade, and this force will be transmitted to the deck 11 of the ship through the support leg 13 directly below the second blade, thereby preventing the cylindrical barrel 12 from being damaged by the second blade. The impeller 14 fixedly connected with the cylindrical barrel 12 is prevented from falling over due to excessive force.

When the third blade is assembled, the cylindrical barrel 12 will be subjected to the pressure of the third blade force, and this force will be transmitted to the deck 11 of the ship through the support leg 13 directly below the third blade, thereby preventing the cylindrical barrel 12 from being damaged by the third blade. The force is too large to overturn, thereby preventing the impeller 14 fixedly connected with the cylindrical barrel 12 from overturning.

In the installation device provided by the embodiment of the present invention, in the process of assembling the impeller 14, since the cylindrical barrel 12 has the first opening 122 or the second opening 123, the supporting legs 13 are fixed in the first opening 122 or the second opening 123 , so that the cylindrical tube 12 and the supporting leg 13 form an integral body, the supporting leg 13 can transmit the received pressure to the deck 11 of the ship, thereby preventing the cylindrical tube 12 from being overwhelmed due to excessive force, and then avoiding contact with the The impeller 14 to which the cylindrical barrel 12 is fixed falls over.

In the installation equipment provided in the above embodiments, the support legs 13 can be long support legs or short support legs, and the length of the long support legs is greater than the length of the short support legs; As shown, the support leg 13 includes at least one long support leg; when the above installation device is used for a three-blade or more blade impeller 14, as shown in Figure 1b, the support leg 13 includes at least two long support legs, of which two long support The angle between the legs is equal to 120 degrees.

When the supporting legs 13 comprise at least one long supporting leg, the mounting equipment can be used to assemble the two-blade impeller 14 .

When the supporting legs 13 comprise at least two long supporting legs, the mounting equipment can be used to assemble the three-bladed or multi-bladed impeller 14 .

When assembling the three-blade impeller 14, it is necessary to install two blades on the hub directly above the two long supporting legs respectively, and finally install the third blade on the hub directly above the short supporting legs. This installation sequence is to ensure When the first blades and the second blades are installed separately, the impeller 14 will not fall over.

If at first the first blade is installed on the hub just above the short support leg, because the length of the short support leg is relatively short, the pressure received by the cylindrical tube 12 cannot be transmitted to the deck 11 of the ship well, so that the impeller 14 may A tip-over will occur.

Certainly, the lengths of the plurality of supporting legs 13 may all be equal, and the length of the supporting legs 13 may be selected according to actual needs.

In the installation equipment provided by the above-mentioned embodiment, as shown in Figure 2, it can also include a support leg box 23; the number of support leg boxes 23 is equal to the number of support legs 13; the support leg box 23 is welded and fixed on the first opening 122 or the second Two openings 123; the supporting legs are respectively sleeved in the supporting leg boxes and protrude from the supporting leg boxes. Wherein, the supporting leg box 23 can avoid the direct contact between the supporting leg 13 and the first opening 122 or the second opening 123 on the cylindrical barrel 12, thereby preventing the first opening 122 or the second opening 123 from being deformed by the force of the supporting leg 13 .

In the installation device provided in the above embodiment, when the number of supporting leg boxes is at least two, one end of the supporting leg boxes inserted into the cylindrical tube can be welded together, so that the supporting leg boxes 23 are fixedly connected to each other and the structure is more stable , the force-bearing capacity of the cylindrical barrel 12 is enhanced.

In the installation equipment provided in the above-mentioned embodiments, the supporting leg box 23 can be a long supporting leg box or a short supporting leg box; the long supporting leg is set in the long supporting leg box, and the short supporting leg is set in the short supporting leg box; The length of the supporting leg box outside the cylindrical barrel 12 is greater than the length of the short supporting leg box outside the cylindrical barrel 12 .

Certainly, the lengths of the plurality of supporting leg boxes 23 located outside the cylindrical barrel 12 may all be equal, and the length of the supporting leg boxes 23 may be selected according to actual needs.

In addition, the length of the long supporting legs set in the long supporting leg box may be 1.5 meters, and the length of the short supporting legs set in the short supporting leg box may be 0.5 meters. However, the length of the supporting legs 13 sleeved in the supporting leg box 23 is not limited to the above-mentioned values, and may also be other values known to those skilled in the art.

In the installation device provided by the above embodiment, as shown in FIG. 5 , the number of long support legs 51 may be three, and the number of short support legs 52 may also be three, wherein the three long support legs 51 are adjacent to each other. Each long support leg 51 is collinear with a short support leg 52, and the angle between two adjacent long support legs 51 is equal to 60 degrees. This arrangement makes six supporting legs 13 evenly distributed in the range of 360 degrees, which can better transmit the force received by the cylindrical barrel 12 to the deck 11 through the supporting legs 13, and the supporting legs 13 enhance the force bearing capacity of the cylindrical barrel 12 , so that the impeller 14 is less likely to fall over.

Of course, the number of supporting legs 13 is not limited to 6, and can also be other numbers that can enhance the force bearing capacity of the cylindrical barrel 12 .

In the installation equipment provided in the above embodiments, a fixing unit 24 is provided between the supporting leg box 23 and the supporting leg 13 for fixing the supporting leg 13 in the supporting leg box 23 . The fixing unit 24 can keep the position of the supporting leg 13 in the supporting leg box 23 relative to the supporting leg box 23 unchanged, which increases the stability of the supporting leg 13 .

In the installation equipment provided by the above embodiments, the fixing unit 24 is a thin steel plate, which can reduce or even eliminate the gap between the supporting leg 13 and the supporting leg box 23, because the price of the thin steel plate is relatively low and does not require high dimensional accuracy , so the cost of fixing the support leg 13 with a thin steel plate is relatively low.

The embodiment of the present invention also provides a method for installing an impeller in an offshore wind power generating set. As shown in FIG. , the installation method includes:

301. Install the hub 141 of the impeller 14 on the flange surface 121 of the cylindrical tube 12 in the above installation device;

302. Install the first blade 142 of the impeller 14 on the hub 141 directly above the long support leg in the above-mentioned installation equipment;

303 . Install the second blade 143 of the impeller 14 on the hub 141 .

The method is to mount a two-bladed impeller 14 and therefore use a mounting device with a support leg 13 in it. The method has been described in detail in the installation device provided in the above embodiments, so details are not repeated here.

In the installation method provided by the embodiment of the present invention, in the process of assembling the double-blade impeller 14, the hub 141 of the impeller 14 is installed on the flange surface 121 of the cylindrical barrel 12 in the above-mentioned installation equipment, so that the hub 141 is fixed on the cylindrical On the barrel 12, the first blade 142 of the impeller 14 is installed on the hub 141 directly above the long support leg in the above-mentioned installation device. The long support leg can transmit the received pressure to the deck 11 of the ship, thereby preventing the column The cylindrical tube 12 is overwhelmed due to excessive force, thereby preventing the impeller 14 fixedly connected with the cylindrical tube 12 from falling over.

The embodiment of the present invention also provides a method for installing impellers in offshore wind power generating sets. As shown in FIG. The impeller 41, the above-mentioned installation method comprises:

401. Install the hub of the impeller 14 on the flange surface 121 of the cylindrical tube 12 in the above-mentioned installation device;

402. Install the first blade of the impeller 14 on the hub directly above a long support leg in the above-mentioned installation device;

403. Install the second blade of the impeller 14 on the hub directly above the other long support leg in the above-mentioned installation device;

404. Install the third blade of the impeller 14 on the hub.

The method is to install a three-blade impeller 14, so there are three support legs 13 in the installation equipment used. The method has been described in detail in the installation device provided in the above embodiments, so details are not repeated here.

In the installation method provided by the embodiment of the present invention, in the process of assembling the three-bladed impeller 14, the hub of the impeller 14 is installed on the flange surface 121 of the cylindrical tube 12 in the above-mentioned installation equipment, so that the hub is fixed on the cylindrical tube 12 First, the first blade of the impeller 14 is installed on the hub directly above a long support leg in the above-mentioned installation equipment, and the long support leg can transmit the received pressure to the deck 11 of the ship, and then the second blade of the impeller 14 The second blade is installed on the hub directly above a long supporting leg in the above-mentioned installation equipment, and the long supporting leg can also transmit the received pressure to the deck 11 of the ship; finally the third blade of the impeller 14 is installed on the above-mentioned installation equipment On the hub directly above the middle and short support legs, the short support legs can also transmit the received pressure to the deck 11 of the ship. Therefore, when the three-blade impeller 14 is assembled, the cylindrical barrel 12 is prevented from overturning due to excessive force, thereby preventing the impeller 14 fixedly connected with the cylindrical barrel 12 from falling over.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. All should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (10)

1. an erection unit that is used for the offshore wind turbine impeller is characterized in that, comprises cylindrical tube and supporting leg; End face of described cylindrical tube is welded on the deck of boats and ships; Another end face edge of described cylindrical tube is provided with flanged surface, and described flanged surface is provided with for the hole that described impeller wheel hub is installed;

When described erection unit was used for two blade impeller, the number of described supporting leg was at least one, was provided with at least one first opening with described deck adjoining position on the barrel of described cylindrical tube; Described at least one supporting leg is installed in described at least one first opening;

When described erection unit is used for three blades or more during multiblade impeller, the number of described supporting leg is at least two, be provided with at least two the second openings with described deck adjoining position on the barrel of described cylindrical tube; Described at least two supporting legs are installed in respectively in described two the second openings at least.

2. erection unit according to claim 1 is characterized in that, described supporting leg is long support leg or short supporting leg, and the length of described long support leg is greater than the length of described short supporting leg;

When described erection unit was used for two blade impeller, described supporting leg comprised at least one long support leg;

When described erection unit is used for three blades or more during multiblade impeller, described supporting leg comprises at least two long support legs, wherein the angle between two long support legs equals 120 degree.

3. erection unit according to claim 1 and 2 is characterized in that, also comprises the supporting leg case; The number of described supporting leg case equals the number of described supporting leg; Described supporting leg case is weldingly fixed in described the first opening or described the second opening; Described supporting leg is set in respectively in the described supporting leg case and from described supporting leg case and stretches out.

4. erection unit according to claim 3 is characterized in that, when the number of described supporting leg case during at least two, an end of the described cylindrical tube of the insertion of described supporting leg case inside welds together.

5. erection unit according to claim 3 is characterized in that, described supporting leg case is long support leg case or short supporting leg case, and described long support leg is set in the described long support leg case, and described short supporting leg is set in the described short supporting leg case; The length that is positioned at the described cylindrical tube outside of described long support leg case is greater than the length in the described cylindrical tube of being positioned at of the described short supporting leg case outside.

6. erection unit according to claim 1 and 2, it is characterized in that, the number of described long support leg is three, the number of described short supporting leg also is three, wherein three described long support legs are adjacent, each described long support leg all with a described short supporting leg conllinear, and the angle between two adjacent described long support legs equal 60 the degree.

7. erection unit according to claim 3 is characterized in that, is provided with fixed unit between described supporting leg case and the described supporting leg, is used for described supporting leg is fixed in the described supporting leg case.

8. erection unit according to claim 7 is characterized in that, described fixed unit is sheet metal.

9. an installation method that is used for the offshore wind turbine impeller is characterized in that, right to use requires each described erection unit for the offshore wind turbine impeller of 1-8, and described impeller is two blade impeller, and described installation method comprises:

(1), the wheel hub with described impeller is installed on the flanged surface of cylindrical tube in the described erection unit;

(2), in described erection unit directly over the long support leg with first blades installation of described impeller to described wheel hub;

(3), with second blades installation of described impeller to wheel hub.

10. an installation method that is used for the offshore wind turbine impeller is characterized in that, right to use requires each described erection unit for the offshore wind turbine impeller of 1-8, and described impeller is three blade impellers, and described installation method comprises:

(1), the wheel hub with described impeller is installed on the flanged surface of cylindrical tube in the described erection unit;

(2), in described erection unit directly over long support leg with the first blades installation of described impeller to described wheel hub;

(3), in described erection unit directly over the another long support leg with the second blades installation of described impeller to described wheel hub;

(4), with the 3rd blades installation of described impeller to described wheel hub.

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