CN1022774C

CN1022774C - Unit construction cylindrical vertical shaft wind-mill generator

Info

Publication number: CN1022774C
Application number: CN 90109775
Authority: CN
Inventors: 徐文澄
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-12-04
Filing date: 1990-12-04
Publication date: 1993-11-17
Anticipated expiration: 2005-12-04
Also published as: CN1062192A

Abstract

The present invention relates to a vertical shaft type windmill. A rotor of the windmill is formed by connecting a plurality of layers of units, a plurality of evenly distributed upstanding blades are arranged on each layer, and each blade is mutually connected with an upper wheel band ring and a lower wheel band ring of the layer; each wheel band ring is connected with a flange of a main shaft by spokes so as to form a cylindrical framework body in the shape of a squirrel cage with high structure strength. The windmill uses a graded and layered electricity speed system, so the speed regulation of the windmill is smooth, and the range of operation wind speed is greatly widened; the present invention can be even designed into a full wind speed type windmill. When running, the windmill is like a huge cylindrical top.

Description

Unit construction cylindrical vertical shaft wind-mill generator

The present invention relates to the unit combination cylinder type vertical-shaft wind-power machine of a kind of vertical-shaft wind-power machine, particularly a kind of variable-speed.

Existing various types of vertical-shaft wind-power machines, need not be though have to wind apparatus, efficient height, simple in structure, easy to manufacture, center of gravity in inferior series of advantages, but also have many problems: S type wind energy conversion system efficient is too low, rotor type blower fan structure complexity, Da Lie wind energy conversion system starting speed governing difficulty etc.And along with the increase of design power, the also corresponding increase of wind energy conversion system blowing area, this just must make its height, impeller diameter, blade dimensions increase thereupon.Existing powerful vertical wind energy conversion system generally is to have bigger rotor main shaft to be connected with the multiple blade rows rigidity that is vertically mounted on the rotor centerline outer rim by beam arm, huge overturn load, rotor main shaft and main shaft tower seat not only diameter is very thick but also will be embedded on the very dark huge basis in order to ensure bearing, the crossbeam of whole rotor, main shaft and support and connection need wide variety of materials, and also more complicated of speed control system, simultaneously because the main shaft diameter is too big, not only heavy, form strong pneumatic vortex again behind the axle, the tower after wind condition of starting building is degenerated, influence the blade operation again.Whole rotor is running up during strong wind, and the structural strength of rotor also is a problem.Performances such as therefore power is big to requiring, operating air velocity wide ranges, simple and reliable, the easy starting of speed control system, structural strength are big, reliable adopt existing vertical shaft type blower fan to be difficult to realize.

Purpose of the present invention is to overcome the problems referred to above of existing vertical-shaft wind-power machine just, and a kind of wind energy conversion system of new structure is provided.Its rotor is the cylinder type structure, thereby its overall construction intensity is greatly improved, and it is level and smooth to adopt the hierarchical classification speed governing that it is regulated simultaneously, and running is steadily reliable.

The object of the present invention is achieved like this: the rotor of wind energy conversion system is formed by connecting by multilevel-cell, installs and fixes type and regulable speed type blade on the rotor at interval or install and fix type and regulable speed type blade at interval on one deck rotor.

Blade is wing blades, and each blade connects and composes a cylindrical frame body with taking turns cranse up and down again, and support body is vertically mounted on the conical base of bottom.Base bears whole rotor gravity, and while each layer wheel cranse is connected with rotor main shaft through spoke again and has formed a long cylinder body member that structural strength is very high.Whole rotor is when wind-engaging rotates, and as same huge gyro, and also can smooth running when running up, the central principal axis of this construction rotor transmits each layer torque force and not too load-bearing with regard to only bearing.Therefore diameter is thinner, each width of blade little (drawing by the solidity design of every layer of number of blade and wind energy conversion system).Pre-buried two punching steel columns on the fixed blade medial axis, there is screw thread at steel column two, so just make blade be pneumatic element be again to connect the cylindrical frame element, the regulable speed type blade is to pass blade pivot by one to be fixed on blade on the adjacent up and down rim, can pivot relative, blade center of gravity should be departed from the position of pivot, blade is not added the spring of unbalance loading in pivot one side.The rotor main shaft bottom is installed on the lower thrust-bearing, rotor main shaft top is installed in the center and draws on the bearing of dish, the center draws dish to be connected with fixed post through pull bar, the locating column load-bearing is little, mainly bear the side direction pulling force and guarantee the vertical easy motion of rotor, epitrochanterian each layer unit interval installed fixed and regulable speed type blade (also can the blade on every layer be installed as fixed and regulable speed type at interval).The axis of all blades is all tangent with circumference during normal operation, and strong wind when hypervelocity, the blade on the I level speed governing layer becomes negative value immediately and plays the speed governing effect when uneven centrifugal force will exert oneself this layer to angle faces of extrinsic deflection during greater than spring tension.Balance spring pulling force adjustment on each speed governing layer blade has difference slightly, thereby each speed governing layer blade action also has successively, but no matter which layer blade is when action (labile state), other each layer blade (comprising fixed bed and other speed governing layer) all is in steady operational status, thereby the high greatly stability and the reliability of rotor, it is level and smooth that whole rotor operation speed governing is regulated.Again because whole rotor body is the cylindrical frame structure, structural strength is very high, rotor speed adopts hierarchical classification to regulate again in addition, rotor blade is a lot, be evenly distributed again, so just both possessed the advantage of the low wind energy conversion system starting torque Da Yi starting of multiple-blade, have high-speed wind mill high speed, effective advantage again, simultaneously the operating air velocity scope is greatly widened, even can be designed to the wind energy conversion system of full blast speed type.

Concrete structure of the present invention is provided by following examples and accompanying drawing thereof.

Fig. 1 is the overall structure figure of this wind energy conversion system.

Fig. 2 is the schematic top plan view of this wind energy conversion system.

Fig. 3 is this wind energy conversion system speed governing blade principle schematic.

Further describe the details and the working condition of the concrete device of the present invention's proposition below in conjunction with Fig. 1.

The rotor of this wind energy conversion system is to be formed by connecting by multilevel-cell, and a plurality of equally distributed upright blades (2) are installed on every layer of unit.Each blade again with this layer up and down rim (3) be connected to each other, each is taken turns cranse and is connected by the flange (5) of spoke (4) and main shaft (1) again, formed a cylinder framework body that structural strength is very high, support body is vertically mounted on the conical load-bearing base in its underpart (6), base is installed on the step (7), and through rotating spindle (1), speed increaser (8), brake (14), can drive generator or other rotary machine.Rotor main shaft (1) top is installed in the center and draws in the bearing (13) on the dish (9) steadily vertical to guarantee the rotor running.The center draws dish (9) to link to each other with location column (11) through pull bar (10), and is strained by wirerope (12).Epitrochanterian each layer unit interval installed fixed and regulable speed type blade, is exactly the 1st, 3,5 ... layer is equipped with regulable speed type blade, i.e. I, II, III ... level speed governing layer.2nd, 4,6 ... layer is installed as solid type blade (also can the blade on every layer be mounted to regulable speed type, fixed at interval).The regulable speed type blade can rotate by eccentric shaft (15) on the medial axis, and each blade central axis was all tangent in circumference when the following scope of rated wind speed was moved.Every layer of blade is narrower, quantity more (, calculating) by design solidity value generally greater than 6, and blade is evenly distributed, and each interlayer leaf position angle of interlock makes the whole wind machine blade be evenly distributed, and starting is easy.When I level speed governing blade amount of unbalance centrifugal force during greater than spring (16) pulling force, blade will be to angle of extrinsic deflection, until being close to positive stop (17), making the output of this layer power become negative value when strong wind turned round at a high speed.So just make the adjusted control of rotation speed of fan.If wind speed continues to increase, II level, III level speed governing level also can be moved successively, make rotation speed of fan controlled.Adjust like this and make unsettled part in every layer of adjustment process only be the part of rotor stability part, thereby guaranteed the level and smooth stable operation of wind energy conversion system, also widened the operating air velocity scope greatly.

Claims

1, unit-combination type cylinder type vertical-shaft wind-power machine, this machine has main shaft (1), multilayer blade (2), wheel cranse (3), spoke (4), bell-shaped rotor base (6), metal (upper (7,13), speed increaser (8), brake disc (9), the rotor of wind energy conversion system is formed by connecting by multilevel-cell, it is characterized in that: each interlayer installs and fixes type and regulable speed type blade at interval every the type of installing and fixing and regulable speed type blade or on one deck on the rotor.

2, wind energy conversion system according to claim 1, it is characterized in that: epitrochanterian blade is a wing blade, the fixed blade is to be fixed on the adjacent rim up and down by two steel columns that pass blade pivot, the regulable speed type blade passes blade pivot by one and is fixed on the adjacent rim up and down, blade can pivot relative, blade center of gravity should be departed from the position of pivot, is provided with the spring that blade is added unbalance loading in pivot one side.

3, wind energy conversion system according to claim 1, it is characterized in that: the pulling force of added unbalance loading spring on the speed governing blade of being installed on each speed governing layer, that adjusts has a certain difference, each speed governing layer blade successively moves to reach the hierarchical classification speed governing when increasing with convenient wind speed, plays the effect of even speed governing.