CN106677960A - Twin-runner water turbine applied to cooling tower and provided with circular-truncated-cone spiral blades - Google Patents

Twin-runner water turbine applied to cooling tower and provided with circular-truncated-cone spiral blades Download PDF

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Publication number
CN106677960A
CN106677960A CN201611243545.0A CN201611243545A CN106677960A CN 106677960 A CN106677960 A CN 106677960A CN 201611243545 A CN201611243545 A CN 201611243545A CN 106677960 A CN106677960 A CN 106677960A
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runner
round platform
cooling tower
spiral vane
water
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CN106677960B (en
Inventor
郑源
黄鑫兰
孙奥冉
张玉全
陈宇杰
付士凤
林国朋
何中伟
郭楚
孙安
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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 twin-runner water turbine applied to a cooling tower and provided with circular-truncated-cone spiral blades. The twin-runner water turbine comprises a volute 1, a water guiding mechanism 2, a basic runner 3, a water outlet pipe 7, a supporting plate 8, a main shaft 9, a bearing assembly 10 and a fan 11, and is characterized by further comprising an energy-increasing runner 4, wherein the energy-increasing runner 4 is positioned below the water outlet of the basic runner 3; the energy-increasing runner 4 is connected with the basic runner 3 through a flange; the energy-increasing runner 4 comprises the circular-truncated-cone spiral blades 5 and a conical round pipe 6; the circular-truncated-cone spiral blades 5 are gradually stretched in the axial direction of the main shaft 8 according to a circular-truncated-cone spiral line, take the spatially crossed and twisted shape, and are uniformly distributed and arranged on the circumferential inner wall of the conical round pipe 6; and a coordinate system is established by taking the intersection of all cross sections of the circular-truncated-cone spiral blades 5 as the origin, and the main shaft 9 serves as the central rotating surface of the circular-truncated-cone spiral blades 5. By adoption of the twin-runner water turbine provided by the invention, the problem about repeated energy conversion of the water flow energy can be solved, thereby efficiently utilizing the water flow energy and improving the cooling effect of the cooling tower.

Description

A kind of double-rotary-wheel water turbine used for cooling tower with round platform spiral vane
Technical field
The invention belongs to water turbine for cooling tower technical field, more particularly to a kind of cooling with round platform spiral vane 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 the part of water-locator three 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 There is no 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 are little and there is 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 in current water turbine for cooling tower field urgently existing for prior art 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 round platform spiral vane Water turbine for cooling tower, the present invention can solve the problem that the difficult problem that current energy multiple energy is changed, 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 round platform spiral vane 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 the outlet lower section of basic runner, and energization runner is connected by flange with basic runner；Energization runner Including round platform spiral vane and taper pipe, wherein：The round platform spiral vane is along main shaft according to round platform helix 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 round platform spiral vane of the surfaces of revolution set up coordinate system, the round platform spiral vane 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 19.62 224 111 0 224
102 60.78 130.71 112 41.48 126.32
103 104.38 -60.86 113 85.45 -67.39
104 150.91 -180.28 114 132.37 -181.58
105 201.13 -104.68 115 182.93 -96.53
106 255.71 81.12 116 238.1 89.96
107 316.43 126.98 117 299.36 121.73
108 385.64 -35.66 118 369.29 -47.49
109 468.26 -74.66 119 452.47 -65.74
110 575.65 56 120 560 56
Two curvilinear equations after fitting are respectively：
The front curvilinear equation of M1：
Y=-7 × 10-12x6+1×10-8x5-8×10-6x4+0.0025x3-0.3299x2+14.079x+53.551；
The reverse side curvilinear equation of M1：
Y=-7 × 10-12x6+1×10-8x5-7×10-6x4+0.0019x3-0.1999x2+3.5895x+220.63；
Table 2：Unit：mm
Two curvilinear equations after fitting are respectively：
The front curvilinear equation of M2：
Y=-1 × 10-11x6+2×10-8x5-1×10-5x4+0.0038x3-0.4969x2+21.052x+80.846；
The reverse side curvilinear equation of M2：
Y=-1 × 10-11x6+2×10-8x5-1×10-5x4+0.0028x3-0.3013x2+5.4342x+330.52；
Table 3：Unit：mm
Sequence number M3Z-X3 M3Z-Y3 Sequence number M3F-X3 M3F-Y3
301 19.79 335.92 311 0 336
302 60.46 193.29 312 40.74 193.88
303 103.55 -91.74 313 83.93 -91.69
304 149.56 -270.47 314 130.04 -270.56
305 199.17 -161.09 315 179.78 -160.05
306 253.38 117.3 316 234.12 118.84
307 313.71 193.55 317 294.65 192.51
308 382.84 -50.44 318 364.03 -53.32
309 466.06 -112 319 447.66 -109.45
310 577.52 84.85 320 560 84
Two curvilinear equations after fitting are respectively：
The front curvilinear equation of M3：
Y=-1 × 10-11x6+2×10-8x5-1×10-5x4+0.0038x3-0.4965x2+21.02x+81.617；
The reverse side curvilinear equation of M3：
Y=-1 × 10-11x6+2×10-8x5-1×10-5x4+0.0028x3-0.3013x2+5.4345x+330.51；
Table 4：Unit：mm
Two curvilinear equations after fitting are respectively：
The front curvilinear equation of M4：
Y=-2 × 10-11x6+3×10-8x5-2×10-5x4+0.0063x3-0.8317x2+35.471x+127.24；
The reverse side curvilinear equation of M4：
Y=-2 × 10-11x6+3×10-8x5-2×10-5x4+0.0047x3-0.5035x2+9.1019x+550.48。
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 basic runner lower section of the hydraulic turbine arranges energization runner, and the energization runner includes round platform spiral vane and taper pipe, wherein： The round platform spiral vane 5 is axially gradually stretching in space crossed distorted shape simultaneously along main shaft 9 according to round platform helix It is uniformly set in the inner circumferential wall of taper pipe 6, the round platform spiral vane 5 of the surfaces of revolution centered on the main shaft 9 The intersection point in each section set up coordinate system for origin, this allows for round platform spiral vane and can be good at overcoming resistance to water-flow, That has given play to maximum turns energy；After current flow through stator from spiral case, basic runner and energization runner are done work successively, water flows out and increases After energy runner, through taper outlet pipe central air-conditioning circulation is again introduced into.Because energization runner can will flow out basis The potential energy of the current of runner is again converted into the rotating mechanical energy of runner, so as to solve the conversion of water energy multiple energy well A difficult problem, improves the output of the hydraulic turbine, to strengthen the cooling effect of cooling tower.
Compared with prior art its remarkable advantage is the present invention：
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 15% on the basis of existing basic runner, energization effect is significant, so as to enhance the cooling of cooling tower Effect.
Two be the round platform spiral vane of employing of the present invention be gradually to be stretched along the axial direction of main shaft according to round platform helix In space crossed distorted shape and it is uniformly set in the inner circumferential wall of taper pipe, substantially reduces hydraulic loss, carries 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 round platform spiral vane 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 round platform spiral vane 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 round platform spiral vane proposed by the present invention Round platform spiral vane four axial cross section hatching relative positions schematic diagram.
Fig. 4 is a kind of round platform spiral of double-rotary-wheel water turbine used for cooling tower with round platform spiral vane proposed by the present invention The structural representation of the round platform helical of shape blade.
Fig. 5 is a kind of energization runner of double-rotary-wheel water turbine used for cooling tower with round platform spiral vane proposed by the present invention Round platform spiral vane 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 round platform spiral vane proposed by the present invention Round platform spiral vane twayblade combining structure schematic diagram.
Numbering explanation in accompanying drawing：Spiral case 1, water distributor 2, basic runner 3, energization runner 4, round platform spiral vane 5, Taper pipe 6, outlet pipe 7, gripper shoe 8, the combination 10, fan 11 of main shaft 9, bearing.
Specific embodiment：
The specific embodiment of the present invention is described in further detail with reference to the accompanying drawings and examples.
Embodiment 1.With reference to Fig. 1 and Fig. 2, a kind of double runner used for cooling tower with round platform spiral vane proposed by the present invention The hydraulic turbine, including spiral case 1, water distributor 2, basic runner 3, energization runner 4, round platform spiral vane 5, taper pipe 6, water outlet Pipe 7, gripper shoe 8, main shaft 9, bearing assembly 10 and fan 11, the water distributor 2 is vertically arranged in the cavity middle part of spiral case 1, Basic runner 3 is embedded in water distributor 2, and the energization runner 4 is located at the outlet lower section of basic runner 3, and energization runner 4 passes through Flange is connected with basic runner 3, and the outer wall of energization runner 4 is provided with outlet pipe 7；Energization runner (4) includes the He of round platform spiral vane 5 Taper pipe 6, wherein：The Archimedian screw shape blade 5 is to be in along axially gradually stretching for main shaft 9 according to round platform helix Space crossed distorted shape is simultaneously uniformly set in the inner circumferential wall of taper pipe 6, and the gripper shoe 8 is fixed on spiral case 1 Top, 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 Combine 10 tops to be connected with fan 11.
A kind of double-rotary-wheel water turbine used for cooling tower with round platform spiral vane proposed by the present invention it is further preferably Scheme is：
The quantity of the round platform spiral vane 5 being uniformly set in the inner circumferential wall of taper pipe 6 is 2-4 Piece.
The energization runner water inlet is equal sized with basic runner outlet；The blade of the basic runner 3, energization turn The round platform spiral vane 5 of wheel 4 is rotated successively by water impact, while the turning moment is passed to into connected wind Arbor 9, 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 38 °.
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 round platform spiral vane 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 round platform spiral vane 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 19.62 224 111 0 224
102 60.78 130.71 112 41.48 126.32
103 104.38 -60.86 113 85.45 -67.39
104 150.91 -180.28 114 132.37 -181.58
105 201.13 -104.68 115 182.93 -96.53
106 255.71 81.12 116 238.1 89.96
107 316.43 126.98 117 299.36 121.73
108 385.64 -35.66 118 369.29 -47.49
109 468.26 -74.66 119 452.47 -65.74
110 575.65 56 120 560 56
Two curvilinear equations after fitting are respectively：
The front curvilinear equation of M1：
Y=-7 × 10-12x6+1×10-8x5-8×10-6x4+0.0025x3-0.3299x2+14.079x+53.551；
The reverse side curvilinear equation of M1：
Y=-7 × 10-12x6+1×10-8x5-7×10-6x4+0.0019x3-0.1999x2+3.5895x+220.63；
Table 2：Unit：mm
Sequence number M2Z-X2 M2Z-Y2 Sequence number M2F-X2 M2F-Y2
201 19.84 335.89 211 0 336
202 60.49 193.11 212 40.74 193.88
203 103.57 -91.89 213 83.93 -91.69
204 149.58 -270.49 214 130.04 -270.57
205 199.18 -161.06 215 179.78 -160.05
206 253.37 117.27 216 234.13 118.85
207 313.69 193.59 217 294.67 192.48
208 382.79 -50.29 218 364.03 -53.32
209 465.99 -112.15 219 447.67 -109.45
210 577.39 84.89 220 560 84
Two curvilinear equations after fitting are respectively：
The front curvilinear equation of M2：
Y=-1 × 10-11x6+2×10-8x5-1×10-5x4+0.0038x3-0.4969x2+21.052x+80.846；
The reverse side curvilinear equation of M2：
Y=-1 × 10-11x6+2×10-8x5-1×10-5x4+0.0028x3-0.3013x2+5.4342x+330.52；
Table 3：Unit：mm
Sequence number M3Z-X3 M3Z-Y3 Sequence number M3F-X3 M3F-Y3
301 19.79 335.92 311 0 336
302 60.46 193.29 312 40.74 193.88
303 103.55 -91.74 313 83.93 -91.69
304 149.56 -270.47 314 130.04 -270.56
305 199.17 -161.09 315 179.78 -160.05
306 253.38 117.3 316 234.12 118.84
307 313.71 193.55 317 294.65 192.51
308 382.84 -50.44 318 364.03 -53.32
309 466.06 -112 319 447.66 -109.45
310 577.52 84.85 320 560 84
Two curvilinear equations after fitting are respectively：
The front curvilinear equation of M3：
Y=-1 × 10-11x6+2×10-8x5-1×10-5x4+0.0038x3-0.4965x2+21.02x+81.617；
The reverse side curvilinear equation of M3：
Y=-1 × 10-11x6+2×10-8x5-1×10-5x4+0.0028x3-0.3013x2+5.4345x+330.51；
Table 4：Unit：mm
Sequence number M4Z-X4 M4Z-Y4 Sequence number M4F-X4 M4F-Y4
401 19.94 560 411 0 560
402 60.19 329.16 412 40.34 327.16
403 102.87 -140.91 413 83.09 -144.08
404 148.45 -447.83 414 128.76 -448.74
405 197.61 -284.35 415 178.02 -280.44
406 251.33 176.98 416 231.89 182.13
407 311.29 330.83 417 291.96 328.81
408 380.15 -63.95 418 360.89 -70.57
409 463.7 -196.59 419 444.72 -192.47
410 579.06 140 420 560 140
Two curvilinear equations after fitting are respectively：
The front curvilinear equation of M4：
Y=-2 × 10-11x6+3×10-8x5-2×10-5x4+0.0063x3-0.8317x2+35.471x+127.24；
The reverse side curvilinear equation of M4：
Y=-2 × 10-11x6+3×10-8x5-2×10-5x4+0.0047x3-0.5035x2+9.1019x+550.48。
Embodiment 3.A kind of energization of double-rotary-wheel water turbine used for cooling tower with round platform spiral vane 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：The radius of the upper disc of the taper pipe 6 of the energization runner 4 is 140mm, the radius of lower disc 560mm, highly be 900mm；The quantity of the round platform spiral vane 5 is 2 pieces, and the cross sectional shape of round platform spiral vane 5 is selected Select symmetrical airfoil；The Breadth Maximum of round platform spiral vane 5 is 336mm, maximum gauge is 1120mm, thickness is 20mm；Round platform 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 38 °；Conically shaped, the circular cone of outlet pipe 7 of the outlet pipe 7 The angle of flare of tee section is 18 °.
Embodiment 3-2：Above the taper pipe (6) of the energization runner 4 radius of circle be 224mm, the half of lower disc Footpath 896mm, highly be 1440mm；The quantity of the round platform spiral vane 5 is 3 pieces, the cross sectional shape of round platform spiral vane 5 Select symmetrical airfoil；The Breadth Maximum of round platform spiral vane 5 is 538mm, maximum gauge is 1792mm, thickness is 32mm；Circle The pitch gradual change ratio of the helical of platform 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 38 °；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 of circle is 322m, the radius of lower disc above the taper pipe 6 of the energization runner 4 1232mm, highly be 1980mm；The quantity of the round platform spiral vane 5 is 4 pieces, the cross sectional shape of round platform spiral vane 5 Select symmetrical airfoil；The Breadth Maximum of round platform spiral vane 5 is 740mm, maximum gauge is 2464mm, thickness is 44mm；Circle The pitch gradual change ratio of the helical of platform 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 38 °；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 in process be：From the tail water of central air-conditioning circulation, spiral case 1 flows described in Jing Water distributor 2 described in Jing simultaneously impacts the blade of the basic runner 3；Next, the circle of energization runner 4 described in water impact Platform spiral vane 5；The fan shaft 9 next, the energization runner 4 links so that the fan 11 is rotated, the fan 11 rotate and cool down tail water water temperature, and the tail water after cooling is again introduced into central air-conditioning circulation and uses.Process Zhou Erfu Begin, move in circles, 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 round platform spiral vane proposed by the present invention It is every according to the present invention 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 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 round platform spiral vane, 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 the outlet lower section of basic runner 3, and energization runner 4 is connected by flange with basis runner 3；Energization runner 4 is wrapped Round platform spiral vane 5 and taper pipe 6 are included, wherein：The round platform spiral vane 5 is along main shaft 9 according to round platform helix Axially gradually stretching is in space crossed distorted shape and is uniformly set in the inner circumferential wall of taper pipe 6, with described The intersection point in each section of the round platform spiral vane 5 of the surfaces of revolution sets up coordinate system, the round platform spiral for origin centered on main shaft 9 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 respectively four molded line, x1、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 19.62 224 111 0 224 102 60.78 130.71 112 41.48 126.32 103 104.38 -60.86 113 85.45 -67.39 104 150.91 -180.28 114 132.37 -181.58 105 201.13 -104.68 115 182.93 -96.53 106 255.71 81.12 116 238.1 89.96 107 316.43 126.98 117 299.36 121.73 108 385.64 -35.66 118 369.29 -47.49 109 468.26 -74.66 119 452.47 -65.74 110 575.65 56 120 560 56
Two curvilinear equations after fitting are respectively：
The front curvilinear equation of M1：
Y=-7 × 10-12x6+1×10-8x5-8×10-6x4+0.0025x3-0.3299x2+14.079x+53.551；
The reverse side curvilinear equation of M1：
Y=-7 × 10-12x6+1×10-8x5-7×10-6x4+0.0019x3-0.1999x2+3.5895x+220.63；
Table 2：Unit：mm
Two curvilinear equations after fitting are respectively：
The front curvilinear equation of M2：
Y=-1 × 10-11x6+2×10-8x5-1×10-5x4+0.0038x3-0.4969x2+21.052x+80.846；
The reverse side curvilinear equation of M2：
Y=-1 × 10-11x6+2×10-8x5-1×10-5x4+0.0028x3-0.3013x2+5.4342x+330.52；
Table 3：Unit：mm
Sequence number M3Z-X3 M3Z-Y3 Sequence number M3F-X3 M3F-Y3 301 19.9 448 311 0 448 302 60.42 261.09 312 40.47 260.69 303 103.25 -116.62 313 83.36 -117.52 304 148.99 -359.34 314 129.17 -359.59 305 198.34 -222.41 315 178.59 -220.85 306 252.27 147.88 316 232.62 149.88 307 312.36 262.15 317 292.83 261.08 308 381.34 -58.19 318 361.98 -61.29 309 464.77 -153.86 319 445.69 -151.39 310 578.43 112.87 320 560 112
Two curvilinear equations after fitting are respectively：
The front curvilinear equation of M3：
Y=-1 × 10-11x6+3×10-8x5-2×10-5x4+0.005x3-0.6659x2+28.379x+102.38；
The reverse side curvilinear equation of M3：
Y=-1 × 10-11x6+2×10-8x5-1×10-5x4+0.0038x3-0.4024x2+7.2661x+440.49；
Table 4：Unit：mm
Sequence number M4Z-X4 M4Z-Y4 Sequence number M4F-X4 M4F-Y4 401 19.94 560 411 0 560 402 60.19 329.16 412 40.34 327.16 403 102.87 -140.91 413 83.09 -144.08 404 148.45 -447.83 414 128.76 -448.74 405 197.61 -284.35 415 178.02 -280.44 406 251.33 176.98 416 231.89 182.13 407 311.29 330.83 417 291.96 328.81 408 380.15 -63.95 418 360.89 -70.57 409 463.7 -196.59 419 444.72 -192.47 410 579.06 140 420 560 140
Two curvilinear equations after fitting are respectively：
The front curvilinear equation of M4：
Y=-2 × 10-11x6+3×10-8x5-2×10-5x4+0.0063x3-0.8317x2+35.471x+127.24；
The reverse side curvilinear equation of M4：
Y=-2 × 10-11x6+3×10-8x5-2×10-5x4+0.0047x3-0.5035x2+9.1019x+550.48。
2. a kind of double-rotary-wheel water turbine used for cooling tower with round platform spiral vane according to claim 1, its feature exists In the quantity of the round platform spiral vane 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 round platform spiral vane according to claim 2, its feature exists In the energization runner water inlet is equal sized with basic runner outlet；The blade of the basic runner 3, energization runner 4 Round platform spiral vane 5 is rotated successively by water impact, while the turning moment is passed to into connected fan shaft 9, drive fan 11 to rotate.
4. a kind of double-rotary-wheel water turbine used for cooling tower with round platform spiral vane according to claim 3, its feature exists 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 38 °.
5. a kind of double-rotary-wheel water turbine used for cooling tower with round platform spiral vane according to claim 4, its feature exists 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 °.
CN201611243545.0A 2016-12-29 2016-12-29 A kind of double-rotary-wheel water turbine used for cooling tower with rotary table spiral vane Expired - Fee Related CN106677960B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101915196A (en) * 2010-05-24 2010-12-15 李延频 Double-runner ultra-low specific speed axial flow hydraulic turbine for driving cooling tower fan
US20110081244A1 (en) * 2009-10-05 2011-04-07 Young Ho Ro Spiral design
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
CN105736213A (en) * 2016-02-02 2016-07-06 河海大学 Equiangular spiral water turbine generating power through tidal current energy
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110081244A1 (en) * 2009-10-05 2011-04-07 Young Ho Ro Spiral design
CN101915196A (en) * 2010-05-24 2010-12-15 李延频 Double-runner ultra-low specific speed axial flow hydraulic turbine for driving cooling tower fan
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
CN105736213A (en) * 2016-02-02 2016-07-06 河海大学 Equiangular spiral water turbine generating power through tidal current energy
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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