Underwater turbine plant support system

FIELD: engines and pumps.

SUBSTANCE: support system intended for, at least, one underwater turbine plant incorporates turbine units made up of turbine assemblies 3 and load-bearing column 1 coming vertically from underwater and seated on the seabed. The system includes a load-bearing structure for, at least, one turbine assembly mounted on column 1 and turning around it, and an appliance allowing selective motion of the load-bearing structure relative to column 1. Column 1 length section, top section 8, wherein the turbine assembly move, consists of two separate sections 9, 10 facing each other and separated by a certain distance between them to make lengthwise gap 11 between the said sections 9 and 10. Sections 9, 10 have a D-shape and form a cross-section of column 1 in the form of a complete ellipse or an oval. Bottom section 12 of column 1 features a round cross-section.

EFFECT: higher reliability of the support system allowing the turbine repair and lower costs.

22 cl, 27 dwg

 

The present invention relates to a supporting structure for turbines, namely to support the turbines, designed for immersion in water flow and driven by the kinetic energy of the water flow.

In our British patent GB 2256011, GB 2311566 In GB and 2348250 we revealed the structural features of turbines driven by water; that is, rotors supported in the water column of the sea, river or estuary, so that the flow of water could turn the rotor to produce electricity or to rotate the shaft to perform any other specific tasks.

When the turbine is driven by water flow, we obtain the energy from the stream leads to a reduction of the kinetic moment of the passing water, which, in turn, leads to impact on the turbine large reactive forces, which are primarily manifested as an opposing force to the flow direction numerical and proportional to the square of the average velocity through the rotor. This is a consequence of the laws of physics and occurs regardless of the design of the turbine rotor. In all cases, the reactive force acting on the rotor is directly proportional to the product of the square of the average velocity of the flow passing through the rotor, the area of the seizure of the rotor.

Basically, the more powerful and more efficient the turbine rotor, the large reactive force is trebuetsya to overcome, although under certain conditions "out of control" powerful reactive power can influence, even when the turbine is reported not too much power shaft, if ever, reported. This, of course, is a direct consequence of the fact that the force required to hold the rotor in position, are in response to forces transmitted to the rotor of the turbine to rotate, which, in turn, transfer some of its effectiveness to obtain the output power on the shaft.

Thus, a basic requirement for any such turbines is that the rotor, which extracts energy, held in position by structures with defined reserves of strength to withstand static and dynamic forces acting on the rotor not only as a result of receiving energy from the stream, but also as a result of other phenomena that may occur, such as wave, the output of the equipment under control or unusual load faced by the turbine or its components during installation or repair.

The creation of this design is complicated by a number of General requirements, namely:

- the design should not particularly interfere with the flow of water to pass through the rotor because of the resulting effect cocurrent stream, otherwise it will reduce the effectiveness of the works of the rotor),

the design also does not have to be expensive in the manufacture in order to minimize the system cost,

- there must be practical and economical way to install structures in place during strong currents,

- there must be practical and economical way to install a turbine rotor or rotors of the turbine design and the method of providing access to the rotor or rotors for their maintenance and, if necessary, replacement or repair.

The aim of the present invention is the creation of structures made with the possibility of maintaining one or more, usually two or more rotors of the turbine in the thickness of the water flows into the sea, rivers or estuaries, which in various ways, described below, meet the above four requirements.

In a broad sense, according to the aspect of the present invention, the set of reference system for maintaining at least one underwater marine turbine installation, containing the turbine sites, and the support system includes a support column, passing vertically from the bottom of the column of flowing water, a support structure referred to at least one turbine site, installed on the column for vertical movement relative to it, and the means for providing selective displacement of the support structure along the length with testwuide columns, characterized in that the length of the column, which is shifted/displaced turbine unit/turbine sites, contains two separate plot/area of the column, facing each other and spaced from each other to form a gap between them, passing along the length between the spaced areas/regions.

Preferably the parts of the length of the columns have the same cross-section and is designed so that when they are facing each other with a gap between them, formed a composite plots/field columns have a non-circular cross-section.

Also preferably non-circular cross-section has the shape of a full ellipse/oval.

Typically, each area/region of the column is generally D-shaped, as a result, when the D-shaped plots/field columns facing each other, they are effectively combined to give a cross-section of said part corresponding columns of a form a complete ellipse/oval.

Preferably the gap between the areas/regions of the column made with the possibility of accommodation and protection of power cables and instrument cables, together with any applicable hydraulic/pneumatic devices used to control, shift and maintenance of turbine nodes.

In addition preferably the m variant construction in the gap has a yoke for connecting cables, chains or the like to be installed to ensure the displacement of the support structure and, thus, any of the respective turbine site along the length of the composite section/area of the column.

In practice, the sides of the gap effectively closed protective flexible panels made with the possibility of cultivation under the force when the displacement of the support structure and installed in such a way that the effect on the clearance of the contamination and waves near the gap effectively excluded.

Preferably the lower end regions of the column is connected with the guide within the bottom of the water column.

Usually the transition region between the lower ends of the sections/areas of the column has a tool for the positioned location of the support structure relative to the length of the composite column in its lowest position relative to the areas of the column, and means positioned for location of the support structure in its lowest position includes a combination of the protrusion and the complementary recesses made in such a way that, when the structure is in its lowest position, the protrusion enters the recess.

Typically, each column is fixed in its vertical position by means of appropriate fastening devices having such a shape and profile to reduce wasmus is the water of the stream.

In practice, the mounting device may include a strut connecting the upper region of the corresponding composite columns with the corresponding individual mounting point at the bottom of the water column.

The spacer is usually zastepowane or equivalently connected to its upper end with a mounting position on the relevant composite column, and the other end with the second attachment point spaced from the column in such a way as to obtain a triangular structure.

Preferably the support system has a means to reduce friction, designed to reduce the resistance to movement between areas of the column and the support structure when it is moving relative to the areas of the column.

Usually means reduce friction contain miscorrection indestructible shims slidable on the imperishable longitudinal friction surfaces located outside areas/regions of the column.

Preferably the supporting structure when the need for accommodation with two turbine sites formed by an elongated element mounted on the corresponding column thereby to form the front and rear edges relative to the water flow, with such a profile, in order to minimize the disturbance of the water flow.

Preferably, when extended the initial element is installed on a single column, the length of the element is such that each turbine site is located at a distance sufficiently remote from the support column, with turbulent water footprint associated with the flow of water past the columns, does not interfere with the flow of water through the turbine rotors nodes.

When two turbine mounted on an elongated element, existing in a single column, turbine nodes placed symmetrically one on each side of the column, so that their rotary axes are separated from each other by a distance equal to at least the sum of the diameter of a single rotor and double the width/thickness of the column.

Preferably, when the support structure is mounted on two spaced apart columns, joins them and gives each their side of the turbine Assembly is mounted on each protruding part of the design, and any additional turbine sites have on this part of the structure, situated between the columns, while the turbine sites are located so that the axis of rotation of the rotors of the turbine sites are separated from each other by a distance equal to at least the sum of the diameter of a single rotor and double the width/thickness of the column.

Also preferably the support structure is installed on the appropriate column using a cuff or sleeve, each of which is made with the possibility of installing sliding in from testwuide D-shaped region of the column for longitudinal displacement relative to the areas of the column, resulting supporting structure is positioned so that the turbine sites are located either on the surface or submerged in the water column at any given depth for efficient operation.

Preferably the working position of the support structure is set to host the rotors at the optimum depth, and the situation is volatile, to ensure that changes the position of the rotors in the water column in accordance with the rise and fill the water flow of the tide and to provide additional lowering of turbine sites during bad weather to minimize wave loads on turbine components.

For a better understanding of the present invention and illustrate variants of its embodiments will now be made with reference to the accompanying drawings, on which:

figure 1 - schematic front view of the vertical section of the support site of the turbine unit and two turbine units in position when the rotor is immersed in water.

figure 2 - schematic side view of the reference node turbine unit 1;

figure 3 is a section along the line a-a from figure 2;

4 is a section on line b-2;

5 is a schematic side view of the reference node turbine unit 1-4, when the turbine units are located so that their rotors are above the surface;

6 is a schematic front view of the reference node turbine unit is from 1 to 4, when the turbine units are located so that their rotors are above the surface;

7 is a schematic front view of the reference node turbine unit with five turbine units, when the rotors of the turbine submerged;

figa - schematic side view of the reference node turbine unit 7;

Fig - schematic front view of the reference node turbine unit 7, when the turbine units are located above the surface of the water;

figa - schematic side view of the reference node turbine unit with Fig;

Fig.9 is a schematic side view of the reference node turbine unit, suitable for use in situations where the water depth is too great for reliable use one column;

figure 10 is a side view illustrating the first method by which the reference node turbine unit can be raised and lowered along the upper part of the support columns;

11 is a section along the line a-a from figure 10;

Fig - side view illustrating the second method by which the reference node turbine unit can be raised and lowered along the upper part of the support columns;

Fig - section on line b-Fig;

Fig and 15 is a schematic view of the device for fixing the reference node turbine unit from vibration or movement when it is at the lowest point offset, and Fig shows working nisaplin the second position, and Fig - working coupled position;

Fig - schematic front view of the placement device to stiffen the reference node turbine unit relative to its position on the support column;

Fig is a schematic view of a variant embodiment of the lifting mechanism to the reference node of the turbine unit;

Fig and 19 - cross section along the line A-a and b-Fig respectively;

Fig - schematic view of the second variant embodiment of the lifting mechanism for the reference node turbine unit when the turbine unit is in the working position;

Fig is a schematic view of a variant embodiment with Fig when the reference node turbine unit raised above the water level;

Fig - schematic view of the third alternative embodiment of the lifting mechanism for the reference node turbine unit when the turbine unit is in the working position;

Fig is a schematic view of a variant embodiment with Fig when the reference node turbine unit raised above the water level;

Fig is a schematic view of another variant embodiment of the lifting mechanism for the reference node turbine unit when the turbine unit is in the working position;

Fig is a schematic view of a variant embodiment with Fig when the reference node turbine unit raised above the water level.

First, consider figure 1-4. In these drawings shows the support column 1 for setup and turbine site 2. The lower end of the column 1 is immersed in the river/the seabed SB, and this column has such a length that its upper end is above the water level WL. Figure 1-4 shows the turbine site, consisting of two turbine units 3, each of which is located in the extreme points of the horizontal cryoablate support structure 4 including the inner rod (not separately shown)inside the outer case (not separately shown) and having a streamlined shape in cross section. Design 4 is supported by the annular flange 5 that is moved along the length of the support column 1. Design 4 has such a profile, to facilitate, to the extent possible, reduce the adverse effect of hydraulic resistance of the water when the water passes over the surface of the structure, and to minimize cocurrent stream at the rear edge design. In practice, the direction of the water flow passing through the design, can be tidal in nature, which means that the stream will flow back in the opposite direction through the same design. All this requires that the profile design also had a corresponding similar bi-directionality, so that it was operationally effective in both directions of passage of water flows.

Each turbine unit 3 includes a rotor 6, which is at the ro is ornam shaft (not separately shown), which forms part of a very schematic outline of a system 7 for transmitting rotation of the rotor, which comprises a drive unit (not shown). The drive unit is essentially a mechanism for the energy of the rotor shaft for any useful purpose, for example to generate electricity, it may consist of a gearbox and generator, generator with direct transmission or drive a hydraulic pump which drives a generator via a hydraulic motor.

The seal 5 is quite firmly attached to the upper section 8 of the column 1 in order to selectively move along the column, which will be described later. The upper section 8 of the column is also given a streamlined shape, and it has a General oval/elliptical profile to minimize cocurrent spray and maximize resistance to bending in the direction of the water flow, perpendicular to the plane of the rotor.

In the shown variant embodiment of the upper section 8 of the column is, as shown in figure 3, two standing next to each other the same columns 9 and 10 with D-shaped profile, between which is the period of 11 to install the main rod support structure 4.

The seal 5, the supporting structure 4 and the turbine units 3 are assembled together as an integral unit to form node 2. This site can entirely be moved along ver the it section of the column, slipping the cuff 5 up or down in section 8 of the column 1. Section 8 is of such length that the extent of possible bias allow node 2 to be placed below the water level WL, as shown in figures 1 and 2, as well as to be placed above the water level, as shown in figure 5 and 6, so that the node 2 can be conveniently located with the rotor 6, is fixed in the desired position for maintenance or other work on the site.

Figures 1 and 2, node 2 is shown positioned so that the axis of the rotor 6 of the turbine unit are located approximately at mid-distance from the water surface WL and seabed SB.

As can be seen in figure 4, which shows a section along the line B-In figure 2, the lower section or section 13 of the base of the column, has a solid circular cross section.

At the upper end of the columns 9 and 10 has a casing 13.

7, 7A, 8 and 8A shows how the turbine site 14 with five turbine units 3 may be installed in the same manner as in the description in relation to the turbine units with 1-6, i.e. with one of the support structure 15, is similar to the structure 4, which, in turn, is supported by two columns 1, similar to those shown in Fig.1-6. It should be noted that the supporting structure 15, as in the previous embodiment, the embodiment carries turbine units 3 at each end with three other turbine units 3, location is nymi along the support structure 15 between the two columns 1. These two columns 1 can, if necessary, to be connected by the connecting element 16 passing between the upper sections 18 of the upper sections 8 columns. Since the construction of the two columns 1 is similar to that described above, there is no need to describe the design of such columns.

Obviously, if the design of the two columns, as shown in Fig.7 and 8, movement of the support structure 15 with respect to the two supporting columns must be run with the same speed on each column synchronized action in order to maintain a mostly horizontal position of the support structure.

The main goal of the coupling element is to improve the resistance of the structure 15 and the corresponding columns 1 static and dynamic loads on the structure and columns. The advantage of this construction is, as shown, for example, to enable the installation of five turbines on two piles instead of four, as shown in figure 1. Therefore, the system shown in Fig.7 and 8, has a 25% better performance than two of the systems shown in figures 1-4, with all this, it is possible that the fabrication and installation of system with 7 and 8 will cost less than 25% more than the equipment system shown in Fig.1-4. In other words, the system f is g and 8 can be, under certain circumstances, more economical.

Refer now to figure 9, which shows how in a situation where the water depth is too large to allow safe use of the single column, you can use a streamlined struts 20 connecting point 21 of the mounting adjacent to the top of the column 1, with the fastening point 22 located at the top of the pile 23, downtrodden or in some other manner prescribed in the depth of the seabed SB. This arrangement provides a triangular configuration, whose attachment point 21, 22 can include a pin connection at appropriate points 21 and 22 of the fastening. This design stabilizes the column 1 as regards the static load, and increase its natural frequency to avoid the problems associated with resonance. The support 20 has an oval or elliptical cross-section, thus providing a narrow profile for the current of water. It is also aligned along the flow direction relative to the column so that a cocurrent stream from it encounters a column, and not the turbine unit, when the flux is in the direction from the struts 20. Design props from figure 9 can be used to strengthen a single column, bearing a pair of rotors, as shown in figures 1 and 2, or where there are two columns for the support of a number of turbines, as shown in figure 5 and 6 on the I strengthen both columns. Thus, figure 9 can be considered a side view, as related to a pair of turbines in the case of figure 1, and the number of turbines, as in figure 5.

As for figure 10 and 11, these drawings respectively illustrate the methods by which the supporting elements 4 and 15, bearing turbine nodes 2 and 14 can be raised and lowered in height along the vertical upper section 8 of the column. In the variant embodiment shown in figure 10, the collar/cuff 5 quite tightly adheres to the upper section 8 of the column in order to have the possibility via a simple control to slide up and down sections, which has an oval/elliptical cross-section and formed by combination of parts 9 and 10 of the upper section of this column. As shown in section Fig (along the line a-a from figure 10), to the surface of the column 1 or inside the cuff 5 may be attached to vertical ground strips 25 so as to preclude the cuff of any horizontal movement in the direction away from the column and to provide miscorrection the surface direction of the cuff 5, when it is lifted or lowered relative to the parts 9 and 10 columns. Contact data proterty strips 25 can be performed either with the inner surface of the cuff or with linings made from a suitable miscorrection material, such as filled polyamide. These pads on the drawing is not until the Ana.

On Fig shows another variant embodiment design to ensure ease of movement of the coupling sleeve 5 along the upper section 8 of the column. In this variant embodiment, the cross member 26 consisting of a large rectangular element that is attached to the main rod design 4 or 15 and is inserted between a pair of D-shaped columns 9 and 10 forming the upper section 8 of the column 1. The cross member 26 is easily installed in place in the gap 11 between columns 9 and 10, where in the case of vertical movement of the cross member in the gap 11 is directly credited columns 9 and 10. In a variant embodiment that uses the crossmember, the need in the cuff for guiding vertical movement along the support structure may in some versions not be required, because the support structure directly attached to both sides of the cross member 26 may be sufficient to prevent horizontal movement relative to the column. The cross member 26 may have miscorrection pads (not shown) for contact with the inner surfaces of the groove in the column to minimize friction, and design 4/15 can't vibrate or move more than a small horizontal distance relative to the column. However, where is used the crossmember, you still need annular manga is and 5A for installation under construction 4/15 for the formation of the bottom surface, which can reside on the top surface of section 12 of the base of the column, when the design 4/15 is at the lowest point of its travel. On Fig shows a cross-section on the line-In with 11 columns, cross-beams and cuff 5A. The cross member is configured to attach to the lifting equipment supporting structures, variants of the embodiment which will be described below.

In the above-described embodiments, setting of the reference nodes turbine units may be retained in a sleeve 5 so that it will be securely locked in place relative to the section 12 of the base of the column to prevent vibration or moving it at the lowest point of the offset. This is shown in Fig, where the lower edge 27 of the cuff 5 has a groove or hole 28 in the form of an inverted "V", which can be coupled with solid, having the same shape of the guide 29 attached to the upper surface 30 of section 12 of the base of the column 1. The location of the support structure 4/15 to install a turbine on it 7 blocks denoted by the reference position 31.

On Fig shows a device with Fig when it is locked in the lower position.

The described device for locking cuff 5/5A may have more than one projection and its corresponding groove. In practice, it is considered that the weight of the node will be sufficient to ensure reliable hook is placed notches with the tabs, in order to avoid any even small relative movement, rocking or vibration, where the cuff, and design 4/15 reliably fixed on the column as long as they do not raise the release of the connection slots with the tabs.

In installations where can require placing the cuff at different heights, for example, when you need to lift the rotors closer to the surface of the water in places with high tide, it is convenient to be able fastening cuffs 5 on the column 1 by means of a hydraulic (or screw) of locking pins or studs (not shown)installed on the cuff 5, you can press or to link with the adjacent surface of the column 1. In practice, such devices are driven by a control system designed to control the turbine units and associated power plant.

It is desirable to minimize the thickness cryoablate support structure 4/15 order mentioned such factors as the hydraulic resistance and a cocurrent stream, were minimized to the maximum extent possible, because when working in a bi-directional tidal otlicnom mode, when the reference design 4/15 is located upstream of the rotor, rotor blades will cut into the gas stream passing from the base structure 4/15. Therefore, it is required that supports the aja design 4/15 was hard and durable and at the same time had the desired minimum thickness. The solution to this problem is shown in Fig where you installed the struts 40 to strengthen the support structure 4 relative to the cuff 5 or cross member 26. Struts 40 also has a streamlined (elliptical) shape in cross section so as not to create too large wakes.

An important feature of the present invention is the ability to provide for lifting and lowering the turbine site for work at any desired depth in the water column, as well as the ability to provide easy access for installation, maintenance, repair and replacement in its position above the surface of the water. Therefore, an important aspect of the present invention is to provide means for lifting and lowering the support structure 4/15 turbine units 3, whether it is one or two turbine unit on one support column, or a number of turbine units located between the United two or more support columns.

The following drawings illustrate variations of the embodiment of the mechanism for lifting and lowering the turbine sites, including the support structure 4/15 and corresponding turbine units 3, where the latter may have a mass of several tens of tons (depending on the rated capacity of the turbine units).

On Fig-19 shows a first variant embodiment of such a device. These drawings show how to install oporno the design 4/15 and the corresponding turbine units 3, to the main rod support structure 4/15 linked with the cross member 26, passed through the gap 11 between the two vertical columns 9 and 10, having in cross section D-shaped and related to the upper section 8 of the column 1. Either the cross member 26, or the seal 5 (or both) are equipped with suitable ground ribbons or strips and miscorrection guide plates (not shown here but previously described), which act as guides for the supporting structures 4/15 and the respective turbines or turbine units 3 as he climbs the top section of the column.

On Fig shows how such a node can be raised by means of cables or chains 41, attached to the main rod or cross member (which, in turn, is attached to the main rod support structure 4/15). On Fig and 19, which represents a magnified view of the cross section along lines A-a and b-Fig, black circles 42 represent a cross-section passing through the cables or chains 41 to four of these cables are used for illustration on Fig, but in practice can be used more or fewer cables or chains. Electrical and instrumentation cables together with any hydraulic or pneumatic hoses required for maintenance of the power plants, are at the center of the top with the functions of the column between the lifting cables or chains and are marked on the section of the white circle. As shown in Fig, the cables 43 are concatenated with the respective pulleys and/or drums 44 a winch.

Side view with Fig schematically shows the guide pulley/winch 44 for cables located in the housing 13 located at the top of section 8 of the column 1 in a position inaccessible to the high water and waves. These pulley/winch 44 is designed so that either the cables or chains 43 are wound onto the drums of the winches (not separately shown) when lifting system or, as a variant, in particular, using chains, cables/chains are along the pulleys winches, being coupled with the pulley by means of teeth or other forms of frictional grip to prevent slipping (not shown), and when they rise up through the Central gap 11 of the upper section 8 of the column 1, the loose ends of the chains can descend along the inner part of the D-shaped columns 9 and 10. Any of the cables may be disconnected. In an alternative embodiment, may be used an additional coil of cable (not shown) to ensure placement of the upper part of the cable in the housing 13 or the upper sections of the columns 9 and 10, when the supporting structure 4/15 raised. On Fig shows how can be located lifting winch 44 to achieve the desired result of raising the turbine site 2 or 14 using the paired external CA is oil or circuits, at the same time lifting and stacking the bundles or the ends of the power and auxiliary cables and contact elements. I would much rather use a pair of hoisting pulleys or drums for lifting cables or chains, but a single pulley or drum may be suitable for cables and contact elements.

As a lifting cable or chain can be used wire ropes, but it is preferable to use a chain with links and such, which would provide full flexibility only in the plane of the winch drum and had limited horizontal flexibility, for example in a Bicycle chain or the tracks of tracked vehicles that are easily wound around the sprocket or drive wheel, but do not buckle to the side. Such links may be made with the possibility of engagement with the teeth or with the appropriate form irregularities on the drums of the winches or drums can be replaced by a suitable chain wheels so that the load can be borne by lifting chain, which covers a partial circumference of the drum or sprocket wheels. Alternatively, if you are using ropes, they can be wrapped around the drum several times to assure sufficient to lift the load friction, and the free end can again be allowed to go down into the inner span of 11 vertical columns. This will help to reduce the external diameter of the winch drum, which would be required if all of the cable or the whole chain must be screwed onto the drum. It is clear that the ropes or chains shall be suitable for use in the aquatic environment, and in the case of marine applications - for salt water.

It should be noted that the lifting cables, ropes or chains 41 are relatively protected from the effects of water flow and/or the ingress of foreign bodies, such as floating debris, due to the fact that they are enclosed in the gap 11 between the vertical columns 9 and 10, and more sensitive and easily damaged cables and any hydraulic or pneumatic hoses 43 further protected by placing them between the lifting cables or chains 41. Outdoor gap 11, shown in Fig, may also be partially closed protective flexible rubber panels (not shown), which can be diluted in hand, when trilobita supporting structure 4 or 15 rises, especially in the area near the surface of the water, in order to more effectively prevent the entry of debris and water from the waves in the gap 11 between the upper parts of the columns.

On Fig and 21 schematically shows an alternative method of lifting the turbine site 2 or 14. This alternative method shows how instead of ropes and chains to turbinatus 2 or 14 attached to a rigid vertical post or support 52 at a point near the Central axis of the column 1 in the interval 11 between the two D-shaped in cross section vertical columns 9 and 10. This vertical support 52 extends from the place of his enlistment in the center cryoablate design 4 or 15 vertically between columns 9 and 10 and passes further into the housing 13 at the top of the column. Lifting device 53, which can have many different options, which will be described later, coupled with the vertical support 52 and can be used to pull upwards until the entire bearing is entirely attached to the turbine hub 2 or 14 will not be clearly above the water level, as shown in Fig. At the top of the housing 13 has a hole 54 in order to allow the support 52 out of the housing 13 through the opening 54, which is normally closed to protect from the weather cover at the time when the reference node turbine block is omitted and the bearing 52 is located inside the body.

Power cables, control cables and instrumentation cables, and any hydraulic or pneumatic hoses can be passed through a vertical support 52 and usually come out on top of this support 52 in the housing 13 at the top of the column. Before you raise a support and attached to the support structure 4 or 15, all connection cables, hoses, etc. that go on top of the supports 52 and included in the housing 13 can be disconnected using the appropriate electric (and, if appropriate, gidravlicheskiy pneumatic connectors).

As already mentioned, the lifting device 53 may have different options. In one of the possible variants of the vertical support 52 or column has a side located on the outer side along its entire length with teeth or holes that might like to hook mechanism is rack and pinion with electric or hydraulic rotary drive unit (not shown). Another option involves the use of hydraulic cylinders and locking pins to raise support step by step just as rises jacking hour; this method uses a hydraulic cylinder, which manually (by the operator) bonded with a suitable ledge or hole in the longitudinal edge attached to the rack, while the cylinder is under pressure to be nominated and to raise support for the entire length of the shock, and in this case bearing testimomials or other convenient method is captured so that it could not fall down when the uncoupling cylinder, followed by reduction and then a new engagement with others below ledge or hole, and this cycle is repeated up until a series of steps will not be made General enough to rise. In some cases, the fixing can be achieved and fully or partially automated using n dawnych rubber grips, which is surrounded by a smooth cylindrical tubular support, where one or more hydraulic jacks attached one capture, and the other grip is attached to the structure itself.

It is also possible to raise or lower the turbine units using a multi-tier system hydraulic cylinder (or cylinders), as shown in Fig and 23, where the hydraulic cylinder or cylinders 60, supported on the beam 61, which engage with the bracket 62 and can raise or lower it, which, in turn, can pull up the turbine site 2 or 14, using paired working on the tension rods 63, passing on both sides of the hydraulic cylinder (hydraulic cylinders) 60, but within the space 11 between the upper sections of the columns. The total stroke of the cylinder (or cylinders) should be sufficient to provide the necessary lifting height; this can be achieved by using a single multi-stage hydraulic cylinder, as shown on the drawings, or by using multiple cylinders connected in series. Being in extended position for lifting turbine units and supporting structures 4/15, the hydraulic cylinder (hydraulic cylinders), bracket and tension rods extended through the opening 54 located on the housing cover 13, the top of the column and are, as shown, over the column.

So far, all described the ways touches the upper column section, includes two vertical columns 9 and 10 with a gap 11 between them, which contains the lifting mechanisms. However, in some embodiments, embodiments of such columns may be preferable to the upper section 8 constituted a single whole with the entire column. In this situation, the lifting gear must be located outside the column. This option is shown on Fig and 25, where the upper section of the column 1 is surrounded by a collar/cuff, bearing turbine site 2 with a pair of turbines and rotors on each end. In the example shown, a hydraulic (or other) lifting device 65 interact and pull up lifting mechanisms 66, located on both sides of the upper section of the column. These lifting mechanisms 66 are attached to the cuff 5 and, therefore, when they picked up they make the cuff 5 together with attached to node 2 to rise above the water level, as shown in Fig. In this case, it is assumed that the lifting mechanisms are rigid elements, and not by ropes or chains, so that in the raised condition they rise vertically above the lifting devices.

It should be noted that although required, at least two traction element located on opposite sides of the upper section of the column (as shown), it may be preferable to use more than two such elements, whic is quickened them on the periphery of the cuff.

In the construction shown in Fig and 25, hoists 66 will change their position, aligning with the flow of water directly in front of and behind the casing to minimize the disturbance of the water flow, unwanted hydraulic resistance and cocurrent spray around the top of the column 1, that is, phenomena that will occur when the horizontal location of the lifting mechanisms.

In practice, these vertically podtyagivayetsa lifting gear 66 can climb any appropriate means such as hydraulic cylinders, rack and pinion mechanisms, or these hoists can be flexible, such as cables or chains when they can pull winches or pulleys driven electrically or hydraulically.

During the installation of the above columns 1, when the seabed SB drill hole for insertion of the column, you may need to first insert received in the hole of the cuff to prevent the borehole wall from destruction. In practice, when the drilling is completed, mentioned the cuff should extend slightly from the surface of the seabed SB, to protect the well from debris that can get there with water before there will insert the column. In practice, in some cases, this process may be arranged so that the cuff footprint of the em immediately after drilling equipment and thus, it takes its place in the well. In other cases, you may need an extension drilled hole borer larger diameter. In an alternative embodiment for placement of the cuff in the well may need an internal ledge, securely welded to its lower end, which uses pile hammer (bottom piling) for driving the cuff in place.

In the actual installation process columns revealed that the columns themselves better to carry out section formed from rolled into a tube and welded butt weld standard steel sheets. In practice, these sections for the formation of the columns will have the same outer diameter but different wall thickness for proper perception bending forces at different heights of the column, when it is already installed. For example, the wall thickness is greatest near the sea bottom and smaller at higher levels of the piles.

The sleeve 5 that is used to install the turbine nodes 2 and 14, which includes the turbine block (blocks) 3 and the drive unit (units), can be guided in its movement relative to the column using miscorrection conveyors, non-corroding cast plates, is made of load-bearing materials such as filled nylon, which can slide on a non-corroding cast longitudinal ground glass surfaces, set along the current side of the column, for example, it can be welded to the corner column elements in stainless steel.

While were described various options for the layout of equipment to move along the column of the cuff and the corresponding turbine site, the following option can be used hoisting seat with intended for coupling holes or teeth that can be captured hydraulically driven clutch, which may have pins inserted to hold or deleted to allow relative movement. When the gripper (not shown) engages with the pin on the lifting support, it can be raised using a hydraulic cylinder. When the hydraulic cylinder is fully extended, the leg can be with a pin attached to a stationary structural component to hold it in place while the cylinder and the gripper, rosapenna and pushed again ready to be coupled to a lower point on the support. After another clutch with stationary structural component of the pin can be removed, so that the cylinder again bears the weight of rising support, and can raise it by performing the following full swing. Lowering is a reverse process to lifting.

In yet another variant (not shown in the drawings) to the rise of the Oh support may be attached to the toothed rack, which can be coupled with the gear located on the top of the pile, and be operated by a gear motor (electric or hydraulic power source). This gear must be held in the grip rail through structural element, which moves forward or rolling along the back side of the slats; alternatively, can be used bilateral rake driven dual gears on parallel shafts, since these two gears are coupled to each other.

1. Reference system for maintaining at least one underwater marine turbine installation, containing the turbine sites, and the support system includes a support column, passing vertically from the bottom of the column of flowing water, a supporting structure, at least one turbine site, installed on the column for vertical movement relative to it, and the means for providing selective displacement of the support structure along the length of the corresponding column, characterized in that the length of the column, which is shifted/displaced turbine unit/turbine sites, contains two separate plot/area of the column, facing each other and spaced from each other to form a gap between them, passing along the length between the sludge is their plots/fields.

2. Reference system according to claim 1, characterized in that the areas/regions of the length of the column have the same cross-section and is designed so that when they are facing each other with a gap between them, formed a composite plots/field columns have a non-circular cross-section.

3. Reference system according to claim 2, wherein the non-circular cross-section has the shape of a full ellipse/oval.

4. Reference system according to any one of claims 1 to 3, characterized in that each section/area of the column is generally D-shaped, as a result, when the D-shaped plots/field columns facing each other, they are effectively combined to give a cross-section of said part corresponding columns of a form a complete ellipse/oval.

5. Reference system according to any one of claims 1 to 3, characterized in that the gap between the areas/regions of the column made with the possibility of accommodation and protection of power cables and instrument cables, together with any applicable hydraulic/pneumatic devices used to control, shift and maintenance of turbine nodes.

6. Reference system according to claim 1, characterized in that the gap has a yoke for connection of cables, chains or the like to be installed to ensure the displacement of the support structure, and t is thus, any relevant turbine site along the length of the composite section/area of the column.

7. Reference system according to any one of claims 1 to 3, characterized in that the sides of the gap effectively closed protective flexible panels made with the possibility of cultivation under the force when the displacement of the support structure and installed in such a way that the effect on the clearance of the contamination and waves near the gap effectively excluded.

8. Reference system according to any one of claims 1 to 3, characterized in that the lower end regions of the column is connected with the guide within the bottom of the water column.

9. The support system of claim 8, characterized in that the transition region between the lower ends of the sections/areas of the column has a tool for the positioned location of the support structure relative to the length of the composite column in its lowest position relative to the areas of the column.

10. Reference system according to claim 9, characterized in that the means for the positioned location of the support structure in its lowest position includes a combination of the protrusion and the complementary recesses made in such a way that when the design is in its lowest position, the protrusion enters the recess.

11. Reference system according to any one of claims 1 to 3, characterized in that each column is fixed in its vertically the position by means of appropriate fastening devices, having such a shape and profile, in order to reduce the disturbance of the water flow.

12. Reference system according to claim 9, characterized in that each mounting device includes a strut connecting the upper region of the corresponding composite columns with the corresponding individual mounting point at the bottom of the water column.

13. Reference system according to item 12, wherein the spacer zastepowane or equivalently connected to its upper end with a mounting position on the relevant composite column, and the other end with the second attachment point spaced from the column in such a way as to obtain a triangular structure.

14. Reference system according to any one of claims 1 to 3, characterized in that the means of reducing friction, designed to reduce the resistance to movement between areas of the column and the support structure when it is moving relative to the areas of the column.

15. The support system 14, characterized in that the means of reducing friction include miscorrection indestructible shims slidable on the imperishable longitudinal friction surfaces located outside areas/regions of the column.

16. Reference system according to any one of claims 1 to 3, characterized in that the supporting structure when the need for accommodation with two turbine sites clicks avana elongated element, set on the corresponding column thereby to form the front and rear edges relative to the water flow, with such a profile, in order to minimize the disturbance of the water flow.

17. Reference system according to item 16, wherein when the elongated element is installed on a single column, the length of the element is such that each turbine site is located at a distance sufficiently remote from the support column, with turbulent water footprint associated with the flow of water past the columns, does not interfere with the flow of water through the turbine rotors nodes.

18. Reference system according to clause 15 or 17, characterized in that the two turbine mounted on an elongated element, existing in a single column, and the turbine nodes placed symmetrically one on each side of the column, so that their rotary axes are separated from each other by a distance equal to at least the sum of the diameter of a single rotor and double the width/thickness of the column.

19. Reference system according to clause 15 or 17, characterized in that when the support structure is mounted on two spaced apart columns and joins them, the turbine nodes installed between the columns.

20. Reference system according to any one of claims 1 to 3, characterized in that when the support structure is mounted on two spaced apart columns, joins them and gives each the x side, the turbine Assembly is mounted on each protruding part of the design, and any additional turbine sites have on this part of the structure, situated between the columns, while the turbine sites are located so that the axis of rotation of the rotors of the turbine sites are separated from each other by a distance equal to at least the sum of the diameter of a single rotor and double the width/thickness of the column.

21. Reference system according to any one of claims 1 to 3, characterized in that the support structure is installed on the appropriate column using a cuff or sleeve, each of which is made with the possibility of installing sliding into the corresponding D-shaped region of the column for longitudinal displacement relative to the areas of the column, resulting in a supporting structure is positioned so that the turbine sites are located either on the surface or submerged in the water column at any given depth for efficient operation.

22. Reference system according to any one of claims 1 to 3, characterized in that the working position of the support structure is set to host the rotors at the optimum depth, and the situation is volatile, to ensure that changes the position of the rotors in the water column in accordance with the rise and fill the water flow of the tide and to provide additional lowering of the turbine is s nodes in bad weather to minimize wave loads on turbine components.



 

Same patents:

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Tidal power plant // 2099587
The invention relates to hydropower and can be used in tidal power plants and wave energy installations

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Marine power plant // 2046207

FIELD: power engineering.

SUBSTANCE: proposed hydroelectric station includes energy converter consisting of chain of hydraulic turbines. Hydraulic turbine is built on hollow carrying shaft-cylinder with conical fairings on bases inscribed into inner ends of blades-semicylinders whose outer ends are clamped together in several places over length of hydraulic turbine by narrow rings-hoops and form multiblade cylinder with hollow belts with ballast on end faces providing neutral buoyancy of hydraulic turbine. Adjustable ballast in hollow part of carrying shaft-cylinder provides variable buoyancy of hydraulic turbine to submerge hydraulic turbine in water completely at neutral buoyancy or rising to surface. Energy converter is connected with electric generators arranged on the bank through system transmitting rotation and arranged in bank cavities. Rotation transmitting system employs different modes of transmission of rotation and connection and movable power unit with travel motion mechanism by means of which it displaces inside cavity. Movable power unit is connected with energy converter and, moving vertically, can set power converter at required depth.

EFFECT: increased efficiency.

4 dwg

FIELD: power engineering.

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EFFECT: higher reliability of the support system allowing the turbine repair and lower costs.

22 cl, 27 dwg

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