CN106677958A - Double-turning-wheel water turbine with logarithmic spiral blades and for cooling tower - Google Patents

Double-turning-wheel water turbine with logarithmic spiral blades and for cooling tower Download PDF

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Publication number
CN106677958A
CN106677958A CN201611243131.8A CN201611243131A CN106677958A CN 106677958 A CN106677958 A CN 106677958A CN 201611243131 A CN201611243131 A CN 201611243131A CN 106677958 A CN106677958 A CN 106677958A
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logarithmic spiral
wheel
runner
double
turning
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CN106677958B (en
Inventor
张玉全
郑源
孙奥冉
陈宇杰
付士凤
林国朋
李东阔
高成昊
臧伟
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Hohai University HHU
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Hohai University HHU
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/12—Blades; Blade-carrying rotors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/12—Blades; Blade-carrying rotors
    • F03B3/121—Blades, their form or construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/30—Application in turbines
    • F05B2220/32—Application in turbines in water turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Turbines (AREA)

Abstract

The invention relates to a double-turning-wheel water turbine with logarithmic spiral blades and for a cooling tower. The double-turning-wheel water turbine comprises a volute (1), a water distributor (2), a basic turning wheel (3), a water outflow pipe (7), a supporting plate (8), a spindle (9), a bearing assembly (10) and a fan (11). The double-turning-wheel water turbine is characterized in that the double-turning-wheel water turbine further comprises an energy increased turning wheel (4), the energy increased turning wheel (4) is located below a water outlet of the basic turning wheel (3), and the energy increased turning wheel (4) is connected with the basic turning wheel (3) through a flange; and the energy increased turning wheel (4) comprises the logarithmic spiral blades (5) and a conical circular pipe (6), wherein the logarithmic spiral blades (5) are gradually stretched according to logarithmic spiral lines in the axial direction of the spindle (9), in spatial crossed warped shape and evenly distributed on the circumferential inner wall of the conical circular pipe (6), and a coordinate system is established with the intersection point of all cross sections of the logarithmic spiral blades taking the spindle (9) as the central turning face as an origin. According to the double-turning-wheel water turbine with the logarithmic spiral blades and for the cooling tower, the effect that water flow energy is subjected to multi-time energy conversion can be achieved, so that efficient utilization of the water flow energy is achieved, and the cooling effect of the cooling tower is improved.

Description

A kind of double-rotary-wheel water turbine used for cooling tower with logarithmic spiral shape blade
Technical field
The invention belongs to water turbine for cooling tower technical field, more particularly to a kind of cooling with logarithmic spiral shape blade Tower double-rotary-wheel water turbine used for cooling tower.
Background technology
Hydrodynamic force water turbine for cooling tower is to drive cooling tower using the surplus water head in industrial cooling tower circulation The hydraulic turbine that blower fan is rotated.Under current energy-saving and emission-reduction, low-carbon (LC) life, the historical background of ecological protection, with unregulated power consumption The water turbine for cooling tower of feature is listed in the Typical Representative of industrial energy saving reduction of discharging, and its energy-saving effect is very notable.
The big more options ultra-low specific speed mixed-flow type turbine of type of existing water turbine for cooling tower, belongs to hydraulic turbine expansion Using new things.But because the development technique of water turbine for cooling tower is also immature, professional is still according to for tradition Hydraulic turbine theory causes that water energy conversion ratio is low developing water turbine for cooling tower, and output is little, and the cooling effect of cooling tower is not It is good.
Chinese patent application 201310627136.0 discloses a kind of " the special volute mixed-flow type water turbine group of cooling tower ", should Water turbine set includes three part of water-locator of volute mixed-flow type water turbine, the blower fan on top and bottom, although whole device does not have Power consumption, little size, simple structure, operation maintenance are convenient, but be also clearly present structure design it is not reasonable the problems such as, therefore Not with the function that multiple energy conversion is carried out to water energy.
Chinese patent application 201220494837.2 discloses " a kind of bilobed wheel hydraulic turbine of cooling tower ", and the hydraulic turbine enters Water pipe and body are connected as 90 degree of right angle water inlets, and set two impellers, and one is dead impeller, and one is feathering paddle wheel.When water is entered In body, dead impeller is introduced into, is then outwards sprayed water by dead impeller, be operated from surrounding impact feathering paddle wheel.Although the device Have the advantages that simple structure, size be little, and no power consumption, but the obvious deficiency for existing cannot be realized to many of water energy Secondary energy conversion, with the purpose for reaching to its efficient utilization and improving hydraulic turbine output.
In sum, how to overcome the shortcomings of to become existing for prior art in current water turbine for cooling tower field urgently One of emphasis difficult problem of solution.
The content of the invention
It is an object of the invention to overcome the shortcomings of existing for prior art and provide a kind of with logarithmic spiral shape blade Water turbine for cooling tower, the present invention can solve the problem that a difficult problem for current energy multiple energy conversion, to realize the efficient profit to current energy With the cooling effect of raising cooling tower.
According to a kind of double-rotary-wheel water turbine used for cooling tower with logarithmic spiral shape blade proposed by the present invention, including spiral case, Water distributor, basic runner, outlet pipe, gripper shoe, main shaft, bearing assembly, fan, it is characterised in that also including energization runner, The energization runner is located at below the outlet of basic runner, and energization runner is connected with basic runner by flange；Energization runner Including logarithmic spiral shape blade and taper pipe, wherein：The logarithmic spiral shape blade is along main shaft according to log spiral Axially gradually stretching is in space crossed distorted shape and is uniformly set in the inner circumferential wall of taper pipe, with the main shaft Centered on the intersection point in each section of logarithmic spiral shape blade of the surfaces of revolution set up coordinate system, the logarithmic spiral shape blade for origin Location parameter of the intermediate cross-section molded line characteristic point under rectangular coordinate system as shown in table 1-4, wherein：With M1, M2, M3, M4 point Not Biao Shi four molded line, x1、x2、x3、x4The respectively abscissa of four molded line, y1、y2、y3、y4The vertical seat of respectively four molded line Mark；
Table 1：Unit：mm
Sequence number M1Z-X1 M1Z-Y1 Sequence number M1F-X1 M1F-Y1
101 -88 -18.06 111 -88 -12.14
102 -165.12 29.64 112 -172.05 13.22
103 -226.45 15.38 113 -236.09 32.64
104 -270.23 -63.32 114 -282.41 -46.19
105 -302.75 -96.43 115 -317.1 -98.34
106 -328.31 -56.65 116 -344.44 -70.47
107 -349.32 26.86 117 -366.65 12.22
108 -367.14 118.13 118 -385.47 108.62
109 -382.58 191.59 119 -401.72 188.02
110 -396.2 234.23 120 -416 234.23
Two curvilinear equations after fitting are respectively：
The front curvilinear equation of M1：
Y=-3 × 10-11x6-4×10-8x5-2×10-5x4-0.0047x3-0.5822x2-35.727x+879.3；
The reverse side curvilinear equation of M1:
Y=-3 × 10-11x6-5×10-8x5-2×10-5x4-0.0067x3-0.9353x2-64.718x-1754.3；
Table 2：Unit：mm
Two curvilinear equations after fitting are respectively：
The front curvilinear equation of M2：
Y=-3 × 10-11x6-4×10-8x5-1×10-5x4-0.0017x3-0.1231x2+39.696x+2014.9；
The reverse side curvilinear equation of M2：
Y=-4 × 10-11x6-6×10-8x5-3×10-5x4-0.0073x3-0.8918x2+49.468x-950.79；
Table 3：Unit：mm
Sequence number M3Z-X3 M3Z-Y3 Sequence number M3F-X3 M3F-Y3
301 -88.53 -32.43 311 -88.32 -24.46
302 -184.03 74.28 312 -194 62.55
303 -240.7 -2.58 313 -255.12 17.08
304 -279.49 -158.85 314 -296.05 -146.99
305 -308.75 -192.59 315 -326.52 -195.51
306 -332.17 -94.28 316 -350.72 -103.98
307 -351.69 73.5 317 -379.77 64.3
308 -368.41 248.02 318 -387.87 242.48
309 -383.02 386.91 319 -402.79 384.99
310 -396 464.46 320 -416 468.46
Two curvilinear equations after fitting are respectively：
The front curvilinear equation of M3：
Y=-4 × 10-11x6-5×10-8x5-2×10-5x4-0.0016x3+0.3115x2+67.336x+3200.9；
The reverse side curvilinear equation of M3：
Y=-7 × 10-11x6-1×10-7x5-6×10-5x4-0.0188x3-2.9221x2-229.46x-7095.1；
Table 4：Unit：mm
Two curvilinear equations after fitting are respectively：
The front curvilinear equation of M4：
Y=-4 × 10-11x6-4×10-8x5-1×10-5x4+0.00x3+0.3115x2+67.336x+3200.9；
The reverse side curvilinear equation of M4：
Y=-6 × 10-11x6-7×10-8x5-3×10-5x4-0.0066x3-0.42x2+20.566x+2182.7。
The present invention principle of realizing be：For there is water conservancy diversion for draft tube in the hydroelectric hydraulic turbine and recovering energy Effect, and the difficult problem that the discharge in water turbine for cooling tower is little, head is low and size is little, the present invention is used for cooling tower The lower section of the basic runner of the hydraulic turbine arranges energization runner, and the energization runner includes logarithmic spiral shape blade and taper pipe, its In：The logarithmic spiral shape blade is axially gradually stretching in space crossed distorted shape simultaneously along main shaft according to log spiral It is uniformly set in the inner circumferential wall of taper pipe, centered on the main shaft, the logarithmic spiral shape blade of the surfaces of revolution is each The intersection point in section sets up coordinate system for origin, and this allows for logarithmic spiral shape blade and can be good at overcoming resistance to water-flow, plays Go out maximum turns energy；After current flow through stator from spiral case, successively basic runner and energization runner are done work, water flows out energization and turns After wheel, central air-conditioning circulation is again introduced into through taper outlet pipe.As energization runner can will flow out basic runner The potential energy of current be again converted into the rotating mechanical energy of runner, so as to solve the difficulty of water energy multiple energy conversion well Topic, improves the output of the hydraulic turbine, to strengthen the cooling effect of cooling tower.
Its remarkable advantage is the present invention compared with prior art：
One is the invention provides a kind of new and effective water turbine for cooling tower the Hydraulic Design new departure, specifically in base Energization runner is set up on the basis of plinth runner water power calculation so that under equal head and flow, the hydraulic turbine of the present invention is to current Energy conversion ratio increased 14% on the basis of existing basic runner, energization effect is significant, so as to enhance the cooling of cooling tower Effect.
Two be the logarithmic spiral shape blade of employing of the present invention be gradually to be stretched along the axial direction of main shaft according to log spiral In space crossed distorted shape and it is uniformly set in the inner circumferential wall of taper pipe, substantially reduces hydraulic loss, carry The high output of water turbine for cooling tower.
Three is that water turbine for cooling tower of the invention is stable, high to the conversion ratio of current energy, is widely used in tide The field popularization and application such as stream energy, valley hydroelectric generation.
Description of the drawings
Fig. 1 is a kind of structural representation of double-rotary-wheel water turbine used for cooling tower with logarithmic spiral shape blade proposed by the present invention Figure.
Fig. 2 is a kind of energization runner of double-rotary-wheel water turbine used for cooling tower with logarithmic spiral shape blade proposed by the present invention Structural representation.
Fig. 3 is a kind of energization runner of double-rotary-wheel water turbine used for cooling tower with logarithmic spiral shape blade proposed by the present invention Logarithmic spiral shape blade four axial cross section hatching relative positions schematic diagram.
Fig. 4 is a kind of logarithmic spiral of double-rotary-wheel water turbine used for cooling tower with logarithmic spiral shape blade proposed by the present invention The structural representation of the logatithmic spiral of shape blade.
Fig. 5 is a kind of energization runner of double-rotary-wheel water turbine used for cooling tower with logarithmic spiral shape blade proposed by the present invention Logarithmic spiral shape blade single blade contour structures schematic diagram.
Fig. 6 is a kind of energization runner of double-rotary-wheel water turbine used for cooling tower with logarithmic spiral shape blade proposed by the present invention Logarithmic spiral shape blade twayblade combining structure schematic diagram.
Numbering explanation in accompanying drawing：Spiral case 1, water distributor 2, basic runner 3, energization runner 4, logarithmic spiral shape blade 5, Taper pipe 6, outlet pipe 7, gripper shoe 8, the combination 10, fan 11 of main shaft 9, bearing.
Specific embodiment：
With reference to the accompanying drawings and examples the specific embodiment of the present invention is described in further detail.
Embodiment 1.With reference to Fig. 1 and Fig. 2, a kind of double runner used for cooling tower with logarithmic spiral shape blade proposed by the present invention The hydraulic turbine, including spiral case 1, water distributor 2, basic runner 3, energization runner 4, logarithmic spiral shape blade 5, taper pipe 6, water outlet Pipe 7, gripper shoe 8, main shaft 9, bearing assembly 10 and fan 11, the water distributor 2 are vertically arranged in the middle part of the cavity of spiral case 1, Basic runner 3 is embedded in water distributor 2, and the energization runner 4 is located at below the outlet of basic runner 3, and energization runner 4 passes through Flange is connected with basic runner 3, and 4 outer wall of energization runner is provided with taper outlet pipe 6；Energization runner 4 includes logarithmic spiral shape blade 5 With taper pipe 6, wherein：The logarithmic spiral shape blade 5 is axially gradually stretching in sky along main shaft 9 according to log spiral Between intersect and distorted shape be uniformly set in the inner circumferential wall of taper pipe 6；The gripper shoe 8 is fixed on spiral case 1 Side, for supports main shaft 9, bearing combination 10 and fan 11；The main shaft 9 is connected with basic runner 3, and main shaft 9 passes through bearing group Close 10 tops to be connected with fan 11.
A kind of double-rotary-wheel water turbine used for cooling tower with logarithmic spiral shape blade proposed by the present invention it is further preferably Scheme is：
The quantity of the logarithmic spiral shape blade 5 being uniformly set in the inner circumferential wall of taper pipe 6 is 2-4 Piece.
The water inlet of the energization runner 4 is equal sized with the outlet of basic runner 3；The blade of the basic runner 3, The logarithmic spiral shape blade 5 of energization runner 4 is received water impact successively and is rotated, while the turning moment is passed to being attached thereto The main shaft 9 for connecing, drives fan 11 to rotate.
The water inlet end of the taper pipe 6 of the energization runner 4 is circular cross-section, the expansion of the circular cross-section with water side Scattered angle is 63 °.
The outside of the energization runner 4 is provided with outlet pipe 7, conically shaped, the cone section of the outlet pipe 7 The diffusion angle in face is 18 °.
Embodiment 2.With reference to Fig. 3, the friendship in each section of the logarithmic spiral shape blade 5 of the surfaces of revolution centered on the main shaft 9 Point sets up coordinate system for origin, the position of the intermediate cross-section molded line characteristic point of the logarithmic spiral shape blade 5 under rectangular coordinate system Parameter is put as shown in table 1-4, wherein：Four molded line, x are represented respectively with M1, M2, M3, M41、x2、x3、x4Respectively four molded line Abscissa, y1、y2、y3、y4The respectively vertical coordinate of four molded line；
Table 1：Unit：mm
Sequence number M1Z-X1 M1Z-Y1 Sequence number M1F-X1 M1F-Y1
101 -88 -18.06 111 -88 -12.14
102 -165.12 29.64 112 -172.05 13.22
103 -226.45 15.38 113 -236.09 32.64
104 -270.23 -63.32 114 -282.41 -46.19
105 -302.75 -96.43 115 -317.1 -98.34
106 -328.31 -56.65 116 -344.44 -70.47
107 -349.32 26.86 117 -366.65 12.22
108 -367.14 118.13 118 -385.47 108.62
109 -382.58 191.59 119 -401.72 188.02
110 -396.2 234.23 120 -416 234.23
Two curvilinear equations after fitting are respectively：
The front curvilinear equation of M1：
Y=-3 × 10-11x6-4×10-8x5-2×10-5x4-0.0047x3-0.5822x2-35.727x+879.3；
The reverse side curvilinear equation of M1:
Y=-3 × 10-11x6-5×10-8x5-2×10-5x4-0.0067x3-0.9353x2-64.718x-1754.3；
Table 2：Unit：mm
Sequence number M2Z-X2 M2Z-Y2 Sequence number M2F-X2 M2F-Y2
201 -89.99 -24.46 211 -86 -17.29
202 -179.13 51.87 212 -185.25 36.88
203 -236.61 9.03 213 -248.64 27.76
204 -276.56 -111.62 214 -291.63 -97.78
205 -306.7 -146.49 215 -323.51 -148.35
206 -330.77 -77.71 216 -348.7 -87.49
207 -350.78 48.29 217 -369.47 38.63
208 -367.87 181.81 218 -387.12 175.92
209 -382.78 288.7 219 -402.45 286.65
210 -396 351.34 220 -416 351.34
Two curvilinear equations after fitting are respectively：
The front curvilinear equation of M2：
Y=-3 × 10-11x6-4×10-8x5-1×10-5x4-0.0017x3-0.1231x2+39.696x+2014.9；
The reverse side curvilinear equation of M2：
Y=-4 × 10-11x6-6×10-8x5-3×10-5x4-0.0073x3-0.8918x2+49.468x-950.79；
Table 3：Unit：mm
Sequence number M3Z-X3 M3Z-Y3 Sequence number M3F-X3 M3F-Y3
301 -88.53 -32.43 311 -88.32 -24.46
302 -184.03 74.28 312 -194 62.55
303 -240.7 -2.58 313 -255.12 17.08
304 -279.49 -158.85 314 -296.05 -146.99
305 -308.75 -192.59 315 -326.52 -195.51
306 -332.17 -94.28 316 -350.72 -103.98
307 -351.69 73.5 317 -379.77 64.3
308 -368.41 248.02 318 -387.87 242.48
309 -383.02 386.91 319 -402.79 384.99
310 -396 464.46 320 -416 468.46
Two curvilinear equations after fitting are respectively：
The front curvilinear equation of M3：
Y=-4 × 10-11x6-5×10-8x5-2×10-5x4-0.0016x3+0.3115x2+67.336x+3200.9；
The reverse side curvilinear equation of M3：
Y=-7 × 10-11x6-1×10-7x5-6×10-5x4-0.0188x3-2.9221x2-229.46x-7095.1；
Table 4：Unit：mm
Sequence number M4Z-X4 M4Z-Y4 Sequence number M4F-X4 M4F-Y4
401 -88 -39.83 411 -88 -30.34
402 -188.55 97.09 412 -197.91 84.61
403 -244.15 -21.73 413 -257.96 9.18
404 -281.91 -208.6 414 -297.98 -192.22
405 -310.43 -236.48 415 -327.83 -242.39
406 -333.33 -106.92 416 -351.6 -122.66
407 -352.45 102.25 417 -371.34 87.51
408 -368.87 316.5 418 -388.21 307.47
409 -383.24 486.1 419 -402.94 482.77
410 -396.03 585.57 420 -416 585.57
Two curvilinear equations after fitting are respectively：
The front curvilinear equation of M4：
Y=-4 × 10-11x6-4×10-8x5-1×10-5x4+0.00x3+0.3115x2+67.336x+3200.9；
The reverse side curvilinear equation of M4：
Y=-6 × 10-11x6-7×10-8x5-3×10-5x4-0.0066x3-0.42x2+20.566x+2182.7。
Embodiment 3.A kind of energization of double-rotary-wheel water turbine used for cooling tower with logarithmic spiral shape blade proposed by the present invention As Figure 4-Figure 6, several typical design parameters are by embodiment 3-1, embodiment 3-2, embodiment for the design of rotaring wheel structure 3-3 is given respectively, wherein：
Embodiment 3-1：On the taper pipe 6 of the energization runner 4, the radius of disc is 36mm, the radius of lower disc 585mm, highly be 328mm；The quantity of the logarithmic spiral shape blade 5 is 2 pieces, and the cross sectional shape of logarithmic spiral shape blade 5 is selected Select symmetrical airfoil, the Breadth Maximum of logarithmic spiral shape blade 5 be 351mm, maximum gauge be 1170mm, thickness be 20mm, logarithm The pitch gradual change ratio of the helical of spiral vane 5 is 7:4；The water inlet end of the taper pipe 6 of the energization runner 4 is equal with water side For circular cross-section, the diffusion angle of the circular cross-section is 63 °；Conically shaped, 7 circular cone of outlet pipe of the outlet pipe 7 The angle of flare of tee section is 18 °.
The water inlet end of the energization runner 4 is circular cross-section with water side, and the diffusion angle of the circular cross-section is 63°。
The outside of the energization runner 4 is provided with outlet pipe 7, conically shaped, the cone section of the outlet pipe 7 The diffusion angle in face is 18 °.
Embodiment 3-2：The radius that the taper pipe 6 of the energization runner 4 is justified above is 80mm, the radius of lower disc 1287mm, highly be 722mm；The quantity of the logarithmic spiral shape blade 5 is 3 pieces, and the cross sectional shape of logarithmic spiral shape blade 5 is selected Select symmetrical airfoil, the Breadth Maximum of logarithmic spiral shape blade 5 be 773mm, maximum gauge be 2574mm, thickness be 44mm, logarithm The pitch gradual change ratio of the helical of spiral vane (5) is 7:4；The water inlet end of the taper pipe 6 of the energization runner 4 and water side Circular cross-section is, the diffusion angle of the circular cross-section is 63 °；The outlet pipe 7 it is conically shaped, outlet pipe 7 is justified The angle of flare of tapered cross-section is 18 °.
Embodiment 3-3：The radius that the taper pipe 6 of the energization runner 4 is justified above is 148m, the radius of lower disc 2399mm, highly be 1345mm；The quantity of the logarithmic spiral shape blade 5 is 4 pieces, the cross sectional shape of logarithmic spiral shape blade 5 Select symmetrical airfoil, the Breadth Maximum of logarithmic spiral shape blade 5 be 1349m, maximum gauge be 4797mm, thickness be 82mm, it is right The pitch gradual change ratio of the helical of number spiral vane 5 is 7:4；The water inlet end of the taper pipe 6 of the energization runner 4 and water side Circular cross-section is, the diffusion angle of the circular cross-section is 63 °；The outlet pipe 7 it is conically shaped, outlet pipe 7 is justified The angle of flare of tapered cross-section is 18 °.
The present invention concrete application process be：From the tail water of central air-conditioning circulation, described in Jing, spiral case 1 flows through institute State water distributor 2 and impact the blade of the basic runner 3；Next, energization runner 4 described in water impact to several spiral shells Rotation shape blade 5；The main shaft 9 next, the energization runner 4 links so that the fan 11 is rotated, and the fan 11 is rotated And tail water water temperature is cooled down, the tail water after cooling is again introduced into the use of central air-conditioning circulation.The process is gone round and begun again, circulation Back and forth, to realize the efficient utilization to current energy, improve the cooling effect of cooling tower.
The explanation being not directed in the specific embodiment of the present invention belongs to technology well known in the art, refers to known technology It is carried out.
Jing validation trials of the present invention, achieve satisfied trial effect.
Above specific embodiment and embodiment are to a kind of cooling tower with logarithmic spiral shape blade proposed by the present invention It is with the concrete support of double-rotary-wheel water turbine technological thought, it is impossible to limit protection scope of the present invention with this, every according to the present invention The technological thought of proposition, any equivalent variations done on the basis of the technical program or equivalent change, still fall within this The scope of bright technical scheme protection.

Claims (5)

1. a kind of double-rotary-wheel water turbine used for cooling tower with logarithmic spiral shape blade, including：Spiral case 1, water distributor 2, basis turn Wheel 3, outlet pipe 7, gripper shoe 8, main shaft 9, bearing assembly 10, fan 11, it is characterised in that also including energization runner 4, the increasing Energy runner 4 is located at below the outlet of basic runner 3, and energization runner 4 is connected with basic runner 3 by flange；Energization runner 4 is wrapped Logarithmic spiral shape blade 5 and taper pipe 6 are included, wherein：The logarithmic spiral shape blade 5 is along main shaft 9 according to log spiral Axially gradually stretching is in space crossed distorted shape and is uniformly set in the inner circumferential wall of taper pipe 6, with described Centered on main shaft 9, the intersection point in each section of the logarithmic spiral shape blade 5 of the surfaces of revolution sets up coordinate system, the logarithmic spiral for origin Location parameter of the intermediate cross-section molded line characteristic point of shape blade 5 under rectangular coordinate system as shown in table 1-4, wherein：With M1, M2, M3, M4 represent four molded line, x respectively1、x2、x3、x4The respectively abscissa of four molded line, y1、y2、y3、y4Respectively four stripe shapes The vertical coordinate of line；
Table 1：Unit：mm
Sequence number M1Z-X1 M1Z-Y1 Sequence number M1F-X1 M1F-Y1 101 -88 -18.06 111 -88 -12.14 102 -165.12 29.64 112 -172.05 13.22 103 -226.45 15.38 113 -236.09 32.64 104 -270.23 -63.32 114 -282.41 -46.19 105 -302.75 -96.43 115 -317.1 -98.34 106 -328.31 -56.65 116 -344.44 -70.47 107 -349.32 26.86 117 -366.65 12.22 108 -367.14 118.13 118 -385.47 108.62 109 -382.58 191.59 119 -401.72 188.02 110 -396.2 234.23 120 -416 234.23
Two curvilinear equations after fitting are respectively：
The front curvilinear equation of M1：
Y=-3 × 10-11x6-4×10-8x5-2×10-5x4-0.0047x3-0.5822x2-35.727x+879.3；
The reverse side curvilinear equation of M1：
Y=-3 × 10-11x6-5×10-8x5-2×10-5x4-0.0067x3-0.9353x2-64.718x-1754.3；
Table 2：Unit：mm
Two curvilinear equations after fitting are respectively：
The front curvilinear equation of M2：
Y=-3 × 10-11x6-4×10-8x5-1×10-5x4-0.0017x3-0.1231x2+39.696x+2014.9；
The reverse side curvilinear equation of M2：
Y=-4 × 10-11x6-6×10-8x5-3×10-5x4-0.0073x3-0.8918x2+49.468x-950.79；
Table 3：Unit：mm
Sequence number M3Z-X3 M3Z-Y3 Sequence number M3F-X3 M3F-Y3 301 -88.53 -32.43 311 -88.32 -24.46 302 -184.03 74.28 312 -194 62.55 303 -240.7 -2.58 313 -255.12 17.08 304 -279.49 -158.85 314 -296.05 -146.99 305 -308.75 -192.59 315 -326.52 -195.51 306 -332.17 -94.28 316 -350.72 -103.98 307 -351.69 73.5 317 -379.77 64.3 308 -368.41 248.02 318 -387.87 242.48 309 -383.02 386.91 319 -402.79 384.99 310 -396 464.46 320 -416 468.46
Two curvilinear equations after fitting are respectively：
The front curvilinear equation of M3：
Y=-4 × 10-11x6-5×10-8x5-2×10-5x4-0.0016x3+0.3115x2+67.336x+3200.9；
The reverse side curvilinear equation of M3：
Y=-7 × 10-11x6-1×10-7x5-6×10-5x4-0.0188x3-2.9221x2-229.46x-7095.1；
Table 4：Unit：mm
Sequence number M4Z-X4 M4Z-Y4 Sequence number M4F-X4 M4F-Y4 401 -88 -39.83 411 -88 -30.34 402 -188.55 97.09 412 -197.91 84.61 403 -244.15 -21.73 413 -257.96 9.18 404 -281.91 -208.6 414 -297.98 -192.22 405 -310.43 -236.48 415 -327.83 -242.39 406 -333.33 -106.92 416 -351.6 -122.66 407 -352.45 102.25 417 -371.34 87.51 408 -368.87 316.5 418 -388.21 307.47 409 -383.24 486.1 419 -402.94 482.77 410 -396.03 585.57 420 -416 585.57
Two curvilinear equations after fitting are respectively：
The front curvilinear equation of M4：
Y=-4 × 10-11x6-4×10-8x5-1×10-5x4+0.00x3+0.3115x2+67.336x+3200.9；
The reverse side curvilinear equation of M4：
Y=-6 × 10-11x6-7×10-8x5-3×10-5x4-0.0066x3-0.42x2+20.566x+2182.7。
2. a kind of double-rotary-wheel water turbine used for cooling tower with logarithmic spiral shape blade according to claim 1, its feature exist In the quantity of the logarithmic spiral shape blade 5 being uniformly set in the inner circumferential wall of taper pipe 6 is 2-4 piece.
3. a kind of double-rotary-wheel water turbine used for cooling tower with logarithmic spiral shape blade according to claim 2, its feature exist In the water inlet of the energization runner 4 is equal sized with the outlet of basic runner 3；The blade of the basic runner 3, energization The logarithmic spiral shape blade 5 of runner 4 is received water impact successively and is rotated, while the turning moment is passed to connected Main shaft 9, drives fan 11 to rotate.
4. a kind of double-rotary-wheel water turbine used for cooling tower with logarithmic spiral shape blade according to claim 3, its feature exist In water inlet end and the water side of the taper pipe 6 of the energization runner 4 are circular cross-section, the angle of flare of the circular cross-section Spend for 63 °.
5. a kind of double-rotary-wheel water turbine used for cooling tower with logarithmic spiral shape blade according to claim 4, its feature exist Be provided with outlet pipe 7 in the outside of, the energization runner 4, the outlet pipe 7 it is conically shaped；The conic section Diffusion angle is 18 °.
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CN109653928A (en) * 2018-12-07 2019-04-19 西安诺普电气工程技术有限公司 The energy-efficient hydraulic turbine and its implementation method applied to cooling tower

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CN105736230A (en) * 2016-02-02 2016-07-06 河海大学 Horizontal-shaft tidal current energy water turbine with constant-speed spiral blade
CN105736228A (en) * 2016-02-02 2016-07-06 河海大学 Horizontal-shaft tidal turbine with logarithmic spiral vanes

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DE102010022935A1 (en) * 2010-06-05 2011-12-08 P.E.A.C.E.-Power Water And Wastewater Gmbh Concave flow turbine for conversion of mechanical energy in other energy forms, particularly in electrical energy, has turbine cone with concave wall with spiral-shaped screw blades and stationary housing
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CN105736230A (en) * 2016-02-02 2016-07-06 河海大学 Horizontal-shaft tidal current energy water turbine with constant-speed spiral blade
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109653928A (en) * 2018-12-07 2019-04-19 西安诺普电气工程技术有限公司 The energy-efficient hydraulic turbine and its implementation method applied to cooling tower
CN109653928B (en) * 2018-12-07 2023-10-27 西安诺普电气工程技术有限公司 Efficient energy-saving water turbine applied to cooling tower and implementation method thereof

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