CN2284082Y - High effective and high multiple foam generator - Google Patents

High effective and high multiple foam generator Download PDF

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Publication number
CN2284082Y
CN2284082Y CN 96249612 CN96249612U CN2284082Y CN 2284082 Y CN2284082 Y CN 2284082Y CN 96249612 CN96249612 CN 96249612 CN 96249612 U CN96249612 U CN 96249612U CN 2284082 Y CN2284082 Y CN 2284082Y
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millimeter
blade
millimeters
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王宏进
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YONG'AN FIRE PRETECTION CO Ltd ZHEJIANG PROV
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YONG'AN FIRE PRETECTION CO Ltd ZHEJIANG PROV
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Abstract

The utility model relates to a high effective and high multiple foam a generator, which comprises a turbine, a proportioner, a nozzle, foam screens, and a fan. The diameter of the rotating wheel of the turbine runner is 84 millimeters, and the number of blades is 10. The height of blade water inlet edge and the height of blade water outlet edge are respectively 9 mm and 17.75 mm, and the blade angle is 42 DEG. The number of the blades of the fan is three, and the length of the blades is 193.5 mm. The lines of working face and the non-working surface are similar to the concave elliptic arc with adjustable shaft distance and convex elliptic arc with adjustable shaft distance, and the foam screen is provided with an outer end plate with the width of 50 millimeters. The included angle of the proportioner and a main-supply is 45 DEG. Compared with the known technology, the generator has the same size and weight; the quantity of foam release can be improved from 13 to 15%, and the fire-fighting efficiency is high.

Description

High-efficiency and high-multiple foam generator
The utility model relates to a kind of preceding foam generator of directly making fire foam that uses.
High-expansion foam generator is the key equipment of high expansion foam fire-extinguishing system.Known high power foam generator is made up of water turbine, proportioner, nozzle, foam screen and fan.During work, after entering the penstock of producer and foam liquid and mixing in desired ratio, evenly spray to foam screen by nozzle with atomised form, on the inside face of net, form one deck foam mixing liquid film, the air-flow of being sent here by fan is blown into a large amount of bubbles with the mixed liquor film---the foam aggregation, in order to category-A or the category-B fire puted out a fire to save life and property quickly and effectively, and also can control autogas, the spill fire of liquefied natural gas effectively.Its blow-off velocity is fast, cost is low, reliable operation, easy to operate.It is applicable to the rescue of large tracts of land fire such as finite space such as oil depot, warehouse, Bottle gas.
The known high-expansion foam generator of people's use at present is standardized product, as meet the high-expansion foam generator of China standard GB 50196-93 " high multiple, medium expansion foam fire extinguishing system design regulation " regulation, though this foam generator can satisfy the GB requirement, but its design is not satisfactory, gas release (rice/minute) lower, at import step pressure is under the condition of 03-10MPa, gas release have only 100-200 rice/minute.The contriver is through studying intensively discovery for many years, and the factor of the existing high-expansion foam generator gas release of influence mainly contains following several respects;
1, the runner nominal diameter of Francis turbine is 82 millimeters, vane type line entrance side height is 8 millimeters, the outlet side height is 17 millimeters, the vane type line shape is not satisfactory in addition, thereby under the essentially identical condition of structure contour dimension, water turbine fails to have given play to maximum efficient, and it is lower to exert oneself;
2, the fan blade number is 4, and under the essentially identical condition of structure contour dimension, the effective open area and the overcurrent gross area ratio of air duct are less, and its vane type line is selected for use rationally inadequately in addition, and the blow rate required of fan is lower, has influenced the gas release of inflation;
3, under the certain condition of oad, the design of foam screen is reasonable inadequately, and the area of foam screen is less, fails to bring into play to greatest extent the effect of foam screen;
4, the angle that leads to the ratio mixed pipe line of the main-supply of water turbine and proportioner is the right angle, during work, the water flow pressure loss that flow to the ratio mixed pipe line from main-supply is big, cause the degree of vacuum in the proportioner to reduce, reduce the ability of suction foam liquid, reduced gas release.
The purpose of this utility model is to overcome above-mentioned shortcoming, provides a kind of identical at import step pressure, under the essentially identical condition of scantling of structure and weight, and the high-efficiency and high-multiple foam generator that gas release is bigger.
The purpose of this utility model realizes in the following manner:
High-efficiency and high-multiple foam generator of the present utility model, comprise Francis turbine, proportioner, nozzle, foam screen and fan, the runner nominal diameter of described Francis turbine is 84 millimeters, the number of blade is 10, blade water inlet limit height is 9 millimeters, going out the waterside height is 17.75 millimeters, the angle that goes out between waterside and the crown line is 86.5 °, following ring is 13 millimeters with going out summit, waterside line arc radius, blade is 42 ° at the stagger angle that encircles down, edge is 42 millimeters apart from the distance of runner center of gyration in face of the same loop contacts down of blade, the same loop contacts face trailing edge down of blade is 20.5 millimeters apart from the distance of center of gyration, the same hat contact surface of blade trailing edge is 18.8 millimeters apart from the distance of center of gyration, the edge is apart from blade crown line 11.7,9, four cross-sectional plane I-I of 2 and 0 millimeters, I1-II, III-III, the driving surface of the vane type line of IV-IV intercepting and the smooth line that the non-working surface molded lines is following each coordinate points, described Y-axis is apart from 18.8 millimeters of runner center of gyrations; X-axis is for going out the omnibearing line of waterside and crown line intersection point, wherein:
The I-I cross section:
Y (millimeter) 1.27 247 10 12.35 driving surface X (millimeter) 1.54 2.01 2.28 2.97 0.39 non-working surface X (millimeter) 1.54 0.99 0.78 0.47 0.05 0.39
Line between the point of driving surface coordinate X=2.97, Y=7 millimeter and the point of X=0.39, Y=12.35 is the circular arc line of 45.51 millimeters of diameters.
The II-II cross section:
Y (millimeter) 0.92 247 10 13 16
Driving surface X (millimeter) 1.20 1.84 2.3 2.99 3.65 4.65 5.9
Non-working surface X (millimeter) 1.20 0.66 0.54 0.36 0.05 0.5 1.45
Y (millimeter) 17.05 18 20 21.1
Driving surface X (millimeter) 6.65 4.75
Non-working surface X (millimeter) 1.90 2.4 3.75 4.75
Line between the point of the point of driving surface coordinate X=6.65, Y=17.05 millimeter and X=4.75, Y=21.1 millimeter is 60 millimeters circular arc line for the radius by the runner center of gyration.
The III-III cross section
Y (millimeter) 0.23 0.73 247 10 13
Driving surface X (millimeter) 0.73 1.23 1.57 2.08 2.86 3.65 4.65
Non-working surface X (millimeter) 0.73 0.23 0.22 0.20 0.16 0.10 0.5
Y (millimeter) 16 18 20 21 22.45 22.45
Driving surface X (millimeter) 5.9 7.4 10.5 14.4 16.21
Non-working surface X (millimeter) 1.45 2.4 3.75 4.55 6.2 16.21
Y (millimeter) 24 24 24.4
Driving surface X (millimeter)
Non-working surface X (millimeter) 9.6,14.7 11.80
Vane tip is the semi arch of R=1.4 millimeter, and the coordinate X=14.85 in its center of circle, Y=22.45 millimeter, root of blade are the semi arch of R=0.5 millimeter, the coordinate X=0.73 in its center of circle, Y=0.73 millimeter.
The IV-IV cross section
Y (millimeter) 0 0.72 247 10 13
Driving surface X (millimeter) 0.5 1.05 1.45 2.0 2.78 3.75 4.5
Non-working surface X (millimeter) 0.5 0000 0.05 0.5
Y (millimeter) 16 18 20 21 22.45 23.85
Driving surface X (millimeter) 6.05 5.5 11.4 16.3
Non-working surface X (millimeter) 1.45 2.5 4 4.9 6.8 11.8
Vane tip is the semi arch of R=1.4 millimeter, its center of circle coordinate X=11.25, Y=21.725 millimeter, and root of blade is the semi arch of R=0.5 millimeter, its center of circle coordinate is X=0.5, Y=0.72 millimeter.
Preferable is that the utility model high-efficiency and high-multiple foam generator fan blade is 3, length of blade is 193.5 millimeters, the cross-sectional plane molded lines of its driving surface and non-working surface is similar to and becomes wheelbase concave, convex elliptic arc, its vane type line shape, by determining along the section drawing that parallels with the blade base and 10,35,60,85.5,111,136.5,162 and 186.5 millimeters I-I～the VIII-VIII cross-sectional plane is done apart from the base respectively, wherein the driving surface of each blade section figure and non-working surface molded lines are the smooth line of following each coordinate points, wherein Y 1Be the ordinate of driving surface, Y 2Be the ordinate of non-working surface, blade thickness Δ Y=Y 1-Y 2, (Y 1, Y 2, Δ Y marks in cross-sectional plane I-I, omit in all the other cross-sectional plane accompanying drawings and annotate).Wherein:
Cross-sectional plane I-I:
X -41 -40 -37 -35 -30 -25 -20 -15
Y 1-8.86 -6.70 -5.08 -4.36 -2.58 -1.00 0.50 1.98
Y 2-8.86 -11.16?-3.40 -3.64 -14.38?-14.74?-14.86?-14.5
ΔY?0 4.46 8.32 9.34 11.80 13.74 15.36 16.48
X -10 -5 0 5 10 15 20 25
Y 1-13.43 4.80 6.10 7.20 8.26 9.27 10.30 11.26
Y 2-13.75?-12.65?-11.30?-9.57 -7.63 -5.50 -3.18 -0.68
ΔY?17.18 17.45 17.40 16.77 15.89 14.77 13.48 11.94
X 30 35 40 43 45 46 48 49.8
Y 1?12.40 13.70?15.10?16.00?16.60?16.90?17.40?15.70
Y 2?1.88 4.50 7.22 9.18 10.56?11.34?12.98?15.70
ΔY?10.52 9.20 7.88 6.82 6.04 5.56 4.42 0
Blade leading edge top arc radius is R3, and trailing edge top arc radius is R1.4;
Cross-sectional plane II-II:
X -46.9 -45 -43 -40 -35 -30 -25 -20
Y 1 -5.25 -3.12 -2.60 -2.20?-1.85 -1.50 -1.15 -0.65
Y 2 -5.25 -7.58 -8.56 -9.46?-10.20?-10.58?-10.76?-10.62
ΔY 0 4.46 5.96 7.26 8.35 9.08 9.61 9.97
X -15 -10 -5 0 5 10 15 20
Y 1 -0.10 0.55 1.20 2.00 2.80 3.55 4.35 5.15
Y 2 -10.62?-10.24?-9.54 -8.55?-7.44 -6.20 -4.82 -3.40
ΔY 10.52 10.79 10.74 10.55?10.74 9.75 9.17 8.55
X 25 30 35 40 45 50 53 55 57.3
Y 1 5.95 6.83 7.80 8.85 10.05 11.25 12.00 12.35 11.55
Y 2 -1.80?-0.16?1.58 3.38 5.26 7.20 8.50 9.52 11.55
ΔY 7.75 6.99 6.22 5.47 4.79 4.05 3.50 2.83 30
Blade leading edge top arc radius is R1.9, and trailing edge top arc radius is R1.1;
Cross-sectional plane III-III:
X -15 -10 -5 0 5 10 15 20 25
Y 1?0 0 0.20 0.45 0.75 1.20 1.68 2.15 2.65
Y 2-9.08?-9.12?-8.90?-8.40?-7.60?-6.64?-5.66?-4.60?-3.54
ΔY?9.08?9.12 9.10 8.85 8.35 7.84 7.34 6.75 6.19
X 30 35 40 45 50 53 55 56.7
Y 1?3.23 3.85 4.55 5.40 6.38 6.98 7.44 6.70
Y 2-2.44?-1.20 0.08 1.40 2.96 4.02 4.96 6.70
ΔY?5.67 5.05 4.47 4.00 3.42 2.96 2.48 0
Blade leading edge top arc radius is R1.8, and trailing edge top arc radius is R1;
Cross-sectional plane IV-IV:
X -41.6?-40 -38 -35 -30 -25 -20 -15
Y 1?0.45 1.19 1.90 1.97 1.60 1.20 0.80 0.50
Y 2?0.45?-1.16?-2.31?-3.62?-5.20?-6.40?-7.30?-7.88
ΔY?0 2.35 4.21 5.59 6.80 7.60 8.10 8.38
X -10 -5 0 5 10 15 20 25
Y 1?0.32 0.20 0.13 0.10 0.15 0.30 0.53 0.90
Y 2-8.20?-8.26?-8.15?-7.64?-7.14?-6.42?-5.60?-4.66
ΔY?8.52 8.46 8.28 7.74 7.29 6.72 6.13 5.56
X 30 35 40 45 50 52 53.7
Y 1?1.28 1.75 2.30 2.90 3.55 3.84 3.3
Y 2-3.66?-2.62?-1.52?-0.30 1.18 1.96 3.3
ΔY?4.94 4.37 3.82 3.26 2.37 1.88 0
Blade leading edge top arc radius is R0.95, and trailing edge top arc radius is R0.7:
Cross-sectional plane V-V:
X -38.1?-36 -35 -30 -25 -20 -15
Y 1?1.3 2.72 2.85 2.49 1.90 1.20 0.68
Y 2?1.3 -0.96?-1.52?-3.75?-5.35?-6.50?-7.35
ΔY?0 3.68 4.37 6.24 7.25 7.70 8.03
X -10 -5 0 5 10 15 20 25
Y 1?0.32 0.05?-0.18?-0.32?-0.40?-0.45?-0.37?-0.25
Y 2-7.90?-8.15?-8.20?-7.90?-7.40?-6.85?-6.14?-5.40
ΔY?8.22 8.20 8.02 7.58 7.00 6.40 5.77 5.15
X 30 35 40 45 48 50 51.7
Y 1-0.10 0.15 0.55 1.05 1.35 1.46 0.8
Y 2-4.58?-3.72?-2.70?-1.70?-0.96?-0.36 0.8
ΔY?4.48 3.87 3.25 2.75 2.31 1.82 0
Blade leading edge top arc radius is R1, and trailing edge top arc radius is R0.7:
Cross-sectional plane VI-VI:
X -35.4?-33 -30 -25 -20 -15 -10 -5
Y 1?2.05 3.42 3.40 2.80 1.92 1.12 0.48 0
Y 2?2.05?-0.24?-1.88?-3.90?-5.40?-6.50?-7.38?-8.00
ΔY?0 3.66 5.28 6.70 7.32 7.62 7.86 8.00
X 0 5 10 15 20 25 30 35
Y 1-0.40?-0.70?-0.96?-1.15?-1.25?-1.30?-1.30?-1.15
Y 2-8.40?-8.28?-7.90?-7.55?-6.92?-6.20?-5.55?-4.68
ΔY?8.00 7.58 6.94 6.40 5.67 4.90 4.25 3.53
X 40 45 47 49.7
Y 1-0.80 -0.42 -0.38?-0.90
Y 2-3.80 -2.78 -2.20?-0.90
ΔY?3.00 2.36 1.82 0
Blade leading edge top arc radius is R1, and trailing edge top arc radius is R0.6;
Cross-sectional plane VII-VII:
X -33.16 -31 -30 -27 -25 -20 -15 -10
Y 1?2.70 3.80 3.80 3.58 3.28 2.30 1.40 0.55
Y 2?2.70 0.26 -0.45 -2.14 -2.98 -4.60 -5.94?-7.05
ΔY?0 3.54 4.25 5.72 6.26 6.90 7.34 7.60
X -5 0 5 10 15 20 25 30
Y 1-0.10 -0.60 -1.00 -1.38 -1.65 -1.90 -2.05 -2.05
Y 2-7.98 -8.40 -8.46 -8.32 -8.05 -7.60 -6.96 -6.25
ΔY?7.88 7.80 7.46 6.94 6.40 5.70 4.91 4.20
X 35 40 42 44 45 48.1
Y 1-1.95 -1.75 -1.65 -1.42 -1.36 -2.00
Y 2-5.46 -4.58 -4.20 -3.78 -3.52 -2.00
ΔY?3.51 2.83 2.55 2.36 2.16 0
Blade leading edge top arc radius is R0.95, and trailing edge top arc radius is R0.7;
Cross-sectional plane VIII-VIII:
X -31.8 -30 -29 -27 -25 -20 -15 -10
Y 1?1.8 3.18 3.34 3.34 3.20 2.45 1.40 0.55
Y 21.8 -0.18?-0.80?-1.96?-2.84?-4.62?-5.98?-7.04
ΔY?0 3.36 4.14 5.30 6.04 7.07 7.38?-7.59
X -5 0 5 10 15 2?0 25 30
Y 1-0.10?-0.70?-1.17?-1.50?-1.88?-2.15?-2.40?-2.52
Y 2-7.85?-8.40?-8.40?-8.32?-7.84?-7.38?-6.82?-6.34
ΔY?7.75 7.70 7.23 6.82 5.96 5.23 4.42 3.82
X 35 40 42 44 46.7
Y 1-2.50?-2.38?-2.35?-2.22?-2.85
Y 2-5.76?-5.04?-4.76?-4.30?-2.85
ΔY?3.26 2.66 2.41 2.08 0
Blade leading edge top arc radius is R0.7, and trailing edge top arc radius is R0.65.
Preferable is to be shaped on the outer end plate part between the outer positive wimble fraction vertex of a cone square outline line of foam screen of the utility model high-efficiency and high-multiple foam generator and the interior back taper part vertex of a cone square outline line, its width is 50 millimeters, the side of the side of described outer positive wimble fraction and interior back taper part and the angle of axis be 12 ° 30 '.
Especially preferably the ratio mixed pipe line of the proportioner of the utility model high-efficiency and high-multiple foam generator and the angle that leads between the main-supply of water turbine are 40 °-50 °.
The utility model high-efficiency and high-multiple foam generator, because under the condition that its contour dimension remains unchanged, suitably strengthened the runner diameter of water turbine, length of blade and vane type line are gone into the waterside and are gone out the height of waterside, thereby increased the open area of water turbine, the shape of blade meticulously reasonably design and improvement have been carried out in addition, increased the area of contact of blade and water, hydraulic test is the result show, the hydraulic efficiency of this improved water turbine brings up to 68% by known 62%, thereby makes the gas release of the utility model high-efficiency and high-multiple foam generator increase about 5%.
The utility model high-efficiency and high-multiple foam generator is owing to the fan with 4 known blades is improved to 3 blades, increased the open area of wind, for guaranteeing still to produce enough thrust to wind, the shape of blade has been carried out meticulously reasonably improving, thereby only increase by 1.7% in scantling of structure, and weight reduces under 4% the situation, improved the work efficiency of fan, results of wind tunnel shows, this improvement can make the work efficiency of fan improve 4%, and the corresponding gas release of the utility model high-efficiency and high-multiple foam generator that makes improves 4%.
The utility model high-efficiency and high-multiple foam generator, owing to do not increase under the condition of foam screen contour dimension in assurance, structure to foam screen is improved, outside foam screen, set up the outer panel part between the positive wimble fraction vertex of a cone and the interior back taper part vertex of a cone, make the foaming area of foam screen increase by 3.3%, and then make the producer gas release improve 3%.
Become 40 °-50 ° because of the ratio mixed pipe line of the proportioner of the utility model high-efficiency and high-multiple foam generator and the angle that leads between the main-supply of water turbine by 90 ° again, thereby reduced the loss of pressure that water flow to the ratio mixed pipe line, degree of vacuum in the proportioner is increased, improved the ability of suction foam liquid, and then the gas release of foam generator has been improved about 1% again.
The utility model high-efficiency and high-multiple foam generator is compared with known technology, and its scantling of structure and weight are basic identical, under the identical situation of import step pressure, can make the gas release of producer increase 13%-15% in optimum implementation.
Other details of the present utility model and characteristics can be cheer and bright by reading the embodiment hereinafter encyclopaedize in conjunction with the accompanying drawings, wherein:
Fig. 1 is the structure working principle figure of the utility model high-efficiency and high-multiple foam generator;
Fig. 2 is the rotaring wheel structure cutaway view of the utility model high-efficiency and high-multiple foam generator Francis turbine;
Fig. 3 is the rotation front view of runner bucket shown in Figure 2;
Fig. 4 is the birds-eye view of runner bucket shown in Figure 2;
Fig. 5-Fig. 8 is the section drawing of doing along Figure 31-I, II-II, III-III, IV-IV;
Fig. 9 is the front view of the utility model high-efficiency and high-multiple foam generator blower impeller;
Figure 10 is the lateral plan of Fig. 9;
Figure 11 is the front view of fan blade shown in Figure 9;
Figure 12 is the lateral plan of Figure 11;
Figure 13 is the birds-eye view of Figure 11;
Figure 14-Figure 21 is the section drawing of being done along Figure 12 I-I～VIII-VIII;
Figure 22 is the utility model high-efficiency and high-multiple foam generator outer casing construction drawing;
Figure 23 is the structural representation of the utility model high-efficiency and high-multiple foam generator foam screen;
Figure 24 is the lateral plan of Figure 23;
Figure 25 is the utility model high-efficiency and high-multiple foam generator proportioner structural representation.
With reference to Fig. 1.Fig. 1 is the structure working principle figure of the utility model high-efficiency and high-multiple foam generator.This foam generator is the same also by water turbine 1 with known foam generator, and proportioner 2, nozzle 3, foam screen 4 and fan 5 are formed.Its principle of work is identical with aforementioned known techniques.
With reference to Fig. 2.Fig. 2 represents the rotaring wheel structure scheme drawing of the utility model high-efficiency and high-multiple foam generator Francis turbine, this rotaring wheel structure is the same with known runner, the nominal diameter that difference only is runner increases to 84 millimeters by known 82 millimeters, 1 millimeter of the corresponding growth of length of blade, blade water inlet limit height increases to 9 millimeters by known 8 millimeters, go out the waterside height and increase to 17.75 millimeters, and the shell sizes of water wheel is constant by 17 millimeters.Thereby the water turbine open area increased, and improved output of hydraulic turbine, improved rotating speed.
With reference to Fig. 3-Fig. 4.Fig. 3-Fig. 4 is the structural representation of the utility model high-efficiency and high-multiple foam generator turbine blade.Fig. 3 is the rotation front view of impeller vane shown in Figure 2, and the height on the limit 6 of water inlet shown in the figure is 9 millimeters, and the height that goes out waterside 7 is 17.75 millimeters, and the angle that goes out between waterside 7 and the crown 8 is 86.5 °, and following ring 9 is 13 millimeters with going out summit, waterside line arc radius.As can be seen from Figure 4, blade is 42 ° at the stagger angle that encircles down, edge is 42 millimeters apart from the distance of runner center of gyration in face of the same loop contacts down of blade, the same loop contacts face trailing edge down of blade is 20.5 millimeters apart from the distance of center of gyration, and the same hat contact surface of blade trailing edge is 18.8 millimeters apart from the distance of center of gyration.
With reference to Fig. 5-Fig. 8.Fig. 5-Fig. 8 is the section drawing that 11.7,9,2 and 0 millimeters I-I, II-II, III-III, IV-IV line are done along Fig. 3 apart from the crown line respectively, and wherein Y-axis is apart from 18.8 millimeters of runner center of gyrations; X-axis is for going out the omnibearing line of waterside and crown intersection point.The driving surface of each cross-sectional plane and non-working surface molded lines are the smooth line of following each coordinate points, wherein:
I-I cross section (Fig. 5):
Y (millimeter) 1.27 247 10 12.35
Driving surface X (millimeter) 1.54 2.01 2.28 2.97 0.39
Non-working surface X (millimeter) 1.54 0.99 0.78 0.47 0.05 0.39
Line between 2 of the point of driving surface coordinate X=2.97, Y=7 millimeter and X=0.39, Y=12.35 millimeter is 45.51 millimeters circular arc line for the diameter by the runner center of gyration;
II-II cross section (Fig. 6):
Y (millimeter) 0.92 247 10 13
Driving surface X (millimeter) 1.20 1.84 2.3 2.99 3.65 4.6 5
Non-working surface X (millimeter) 1.20 0.66 0.54 0.36 0.05 0.5
Y (millimeter) 16 17.05 18 20 21.1
Driving surface X (millimeter) 5.9 6.65 4.75
Non-working surface X (millimeter) 1.45 1.90 2.4 3.75 4.75
Line between the point of the point of driving surface coordinate X=6.65, Y=17.05 millimeter and X=4.75, Y=21.1 millimeter is 60 millimeters circular arc line for the radius by the runner center of gyration.
III-III cross section (Fig. 7):
Y (millimeter) 0.23 0.75 247 10 13
Driving surface X (millimeter) 0.73 1.23 1.57 2.08 2.86 3.65 4.65
Non-working surface X (millimeter) 0.73 0.23 0.22 0.20 0.16 0.10 0.5
Y (millimeter) 16 18 2 21 22.45 24 24 24.4
Driving surface X (millimeter) 5.9 7.4 10.5 14.41 6.21
Non-working surface X (millimeter) 1.45 2.4 3.75 4.55 6.2 9.6 14.7 11.80
Vane tip is the semi arch of R=1.4 millimeter, its center of circle coordinate X=14.85, Y=22.45 millimeter, and root of blade is the semi arch of R=0.5 millimeter, the coordinate in its center of circle is X=0.73, Y=0.73 millimeter.
IV-IV cross section (Fig. 8):
Y (millimeter) 0 0.72 247 10
Driving surface X (millimeter) 0.5 1.05 1.45 2.0 2.78 3.75
Non-working surface X (millimeter) 0.5 0000 0.05
Y (millimeter) 13 16 18 20 21
Driving surface X (millimeter) 4.5 6.05 5.5 11.4 16.3
Non-working surface X (millimeter) 0.5 1.45 2.5 4 4.9
Y (millimeter) 22.45 23.85
Driving surface X (millimeter)
Non-working surface X (millimeter) 6.8 11.8
Vane tip is the semi arch of R=1.4 millimeter, its center of circle coordinate X=11.25, Y=21.725 millimeter, and root of blade is the semi arch of R=0.5 millimeter, its center of circle coordinate is X=0.5, the Y=0.72 millimeter.
With reference to Fig. 9 and Figure 10.Fig. 9 and Figure 10 are the front view and the lateral plans of the utility model high-efficiency and high-multiple foam generator blower impeller.This blower impeller is by wheel hub 10, torus 11, and half 12 in the blade, blade 13 and the impeller cover 14 that are used to clamp blade are formed.Itself and known technology difference are blade quantity is reduced to 3 by 4, to increase open area, simultaneously blade plan form are improved, and guarantee not reduce the thrust of blade to air-flow when reducing blade.
With reference to Figure 11-Figure 13.Blade plan form such as Figure 11-shown in Figure 13.This fan blade length is 193.5 millimeters, the cross-sectional plane molded lines of its driving surface and non-working surface is similar to and becomes wheelbase concave, convex elliptic arc, and its vane type line shape is by along paralleling with blade base 15 and 15 distance is that the section drawing that eight cross-sectional plane I-I～VIII-VIII of 10,35,60,85.5,111,136.5,162 and 186.5 millimeters are done is determined apart from the base respectively.The position of cross-sectional plane as shown in figure 12.Wherein the driving surface of each blade section figure and non-working surface molded lines are the smooth line of following each coordinate points, wherein Y 1Be the ordinate of driving surface, Y 2Be the ordinate of non-working surface, blade thickness Δ Y=Y 1-Y 2, arithemetic unit is a millimeter, (Y 1, Y 2Δ Y marks in cross-sectional plane I-I, does not omit in all the other cross-sectional plane accompanying drawings and annotates).Cross-sectional plane I-I (Figure 14) wherein:
Cross-sectional plane 1-I (Figure 14):
X -41 -40 -37 -35 -30 -25 -20 -15
Y 1-8.86?-6.70 -5.08 -4.36?-2.58 -1.00 0.50 1.98
Y 2-8.86?-11.16 -3.40 -3.64?-14.38?-14.74?-14.86?-14.50
ΔY?0 4.46 8.32 9.34 11.80 13.74 15.36 16.48
X -10 -5 0 5 10 15 20 25
Y 1?3.43 4.80 6.1?0 7.20 8.26 9.27 10.30 11.26
Y 2-13.75?-12.65?-11.30?-9.57?-7.63 -5.50 -3.18 -0.68
ΔY?17.18 17.45 17.40 16.77?15.89 14.77 13.48 11.94
X 30 35 40 43 45 46 48 49.8
Y 1?12.40 13.70 15.10 16.00?16.60 16.90 17.40 15.70
Y 2?1.88 4.50 7.22 9.18 10.56 11.34 12.98 15.70
ΔY?10.52 9.20 7.88 6.82 6.04 5.56 4.42 0
Blade leading edge top arc radius is R3, and trailing edge top arc radius is R1.4;
Cross-sectional plane II-II (Figure 15):
X -46.9 -45 -43 -40 -35 -30 -25 -20
Y 1-525 -3.12 -2.60?-2.20?-1.85 -1.50 -1.15 -0.65
Y 2-5.25 -7.58 -8.56?-9.46?-10.20?-10.58?-10.76?-10.62
ΔY?0 4.46 5.96 7.26 8.35 9.08 9.61 9.97
X -15 -10 -5 0 5 10 15 20
Y 1-0.10 0.55 1.20 2.00 2.80 3.55 4.35 5.15
Y 2-10.62?-10.24?-9.54?-8.55?-7.44 -6.20 -4.82 -3.40
ΔY?10.52 10.79 10.74?10.55?10.24 9.75 9.17 8.55
X 25 30 35 40 45 50 53 55 57.3
Y 1?5.95 6.83?7.80?8.85?10.05?11.25?12.00 12.35?11.55
Y 2-1.80?-0.16?1.58?3.38?5.26 7.20 8.50 9.52 11.55
ΔY?7.75 6.99?6.22?5.47?4.79 4.05 3.50 2.83 0
Blade leading edge top arc radius is R1.9, and trailing edge top arc radius is R1.1;
Cross-sectional plane III-III (Figure 16):
X -45.1 -42 -40 -35 -30 -25 -20
Y 1-1.0 0.65 0.88 0.88 0.56 0.30 0.10
Y 2-1.0 -3.78 -4.54 -6.14 -7.32 -8.20 -8.78
ΔY?0 4.43 5.42 7.02 7.90 8.50 8.88
X -15 -10 -5 0 5 10 15 20 25
Y 1?0 0 0.20 0.45 0.75 1.20 1.68 2.15 2.65
Y 2-9.08?-9.12?-8.90?-8.40?-7.60?-6.64?-5.66?-4.60?-3.54
ΔY?9.08 9.12 9.10 8.85 8.35 7.84 7.34 6.75 6.19
X 30 35 40 45 50 53 55 56.7
Y 1?3.23 3.85 4.55 5.40 6.38 6.98 7.44 6.70
Y 2-2.44?-1.20 0.08 1.40 2.96 4.02 4.96 6.70
ΔY?5.67 5.05 4.47 4.00 3.42 2.96 2.48 0
Blade leading edge top arc radius is R1.8, and trailing edge top arc radius is R1;
Cross-sectional plane IV-IV (Figure 17):
X -41.6?-40 -38 -35 -30 -25 -20 -15
Y 1?0.45 1.19 1.90 1.97 1.60 1.20 0.80 0.50
Y 2?0.45?-1.16?-2.31?-3.62?-5.20?-6.40?-7.30?-7.88
ΔY?0 2.35 4.21 5.59 6.80 7.60 8.10 8.38
X -10 -5 0 5 10 15 20 25
Y 1?0.32 0.20 0.13 0.10 0.15 0.30 0.53 0.90
Y 2-8.20?-8.26?-8.15?-7.64?-7.14?-6.42?-5.60?-4.66
ΔY?8.52 8.46 8.28 7.74 7.29 6.72 6.13 5.56
X 30 35 40 45 50 52 53.7
Y 1?1.28 1.75 2.30 2.90 3.55 3.84 3.3
Y 2-3.66 -2.62 -1.52 -0.30 1.18 1.96 3.3
ΔY?4.94 4.37 3.82 3.26 2.37 1.88 0
Blade leading edge top arc radius is R0.95, and trailing edge top arc radius is R0.7:
Cross-sectional plane V-V (Figure 18):
X -38.1 -36 -35 -30 -25 -20 -15
Y 1?1.3 2.72 2.85 2.49 1.90 1.20 0.68
Y 2?1.3 -0.96 -1.52 -3.75 -5.35 -6.50 -7.35
ΔY?0 3.68 4.37 6.24 7.25 7.70 8.03
X -10 -5 0 5 10 15 20 25
Y 10.32 0.05?-0.18?-0.32?-0.40?-0.45?-0.37?-0.25
Y 2-7.90?-8.15?-8.20?-7.90?-7.40?-6.85?-6.14?-5.40
ΔY?8.22 8.20 8.02 7.58 7.00 6.40 5.77 5.15
X 30 35 40 45 48 50 51.7
Y 1-0.10 0.15 0.55 1.05 1.35 1.46 0.8
Y 2-4.58?-3.72?-2.70?-1.70?-0.96?-0.36 0.8
ΔY?4.48 3.87 3.25 2.75 2.31 1.82 0
Blade leading edge top arc radius is R1, and trailing edge top arc radius is R0.7;
Cross-sectional plane VI-VI (Figure 19):
X -35.4?-33 -30 -25 -20 -15 -10 -5
Y 1?2.05 3.42 3.40 2.80 1.92 1.12 0.48 0
Y 2?2.05?-0.24?-1.88?-3.90?-5.40?-6.50?-7.38?-8.00
ΔY?0 3.66 5.28 6.70 7.32 7.62 7.86 8.00
X 0 5 10 15 20 25 30 35
Y 1-0.40?-0.70?-0.96?-1.15?-1.25?-1.30?-1.30?-1.15
Y 2-8.40?-8.28?-7.90?-7.55?-6.92?-6.20?-5.55?-4.68
ΔY?8.00 7.58 6.94 6.40 5.67 4.90 4.25 3.53
X 40 45 47 49.7
Y 1-0.80?-0.42?-0.38?-0.90
Y 2-3.80?-2.78?-2.20?-0.90
ΔY?3.00 2.36 1.82 0
Blade leading edge top arc radius is R1, and trailing edge top arc radius is R0.6:
Cross-sectional plane VII-VIII (Figure 20):
X -33.16?-31 -30 -27 -25 -20 -15 -10
Y 1?2.70 3.80 3.80 3.58 3.28 2.30 1.40 0.55
Y 2?2.70 0.26?-0.45?-2.14?-2.98?-4.60?-5.94?-7.05
ΔY?0 3.54 4.25 5.72 6.26 6.90 7.34 7.60
X -5 0 5 10 15 20 25 30
Y 1-0.10 -0.60?-1.00?-1.38?-1.65?-1.90?-2.05?-2.05
Y 2-7.98 -8.40?-8.46?-8.32?-8.05?-7.60?-6.96?-6.25
ΔY?7.88 7.8 7.46 6.94 6.40 5.70 4.91 4.20
X 35 40 42 44 45 48.1
Y 1-1.95 -1.75?-1.65?-1.42?-1.36?-2.00
Y 2-5.46 -4.58?-4.20?-3.78?-3.52?-2.00
ΔY?3.51 2.83 2.55 2.36 2.16 0
Blade leading edge top arc radius is R0.95, and trailing edge top arc radius is R0.7;
Cross-sectional plane VIII-VIII (Figure 21):
X -31.8?-3?0 -29 -27 -25 -20 -15 -10
Y 1?1.8 3.18 3.34 3.34 3.20 2.45 1.40 0.55
Y 2?1.8 -0.18?-0.80?-1.96?-2.84?-4.62?-5.98?-7.04
ΔY?0 3.36 4.14 5.30 6.04 7.07 7.38?-7.59
X -5 0 5 10 15 20 25 30
Y 1-0.10?-0.70?-1.17?-1.50?-1.88?-2.15?-2.40?-2.52
Y 2-7.85?-8.40?-8.40?-8.32?-7.84?-7.38?-6.82?-6.34
ΔY?7.75 7.70 7.23 6.82 5.96 5.23 4.42 3.82
X 35 40 42 44 46.7
Y 1-2.50?-2.38?-2.35?-2.22?-2.85
Y 2-5.76?-5.04?-4.76?-4.30?-2.85
ΔY?3.26 2.66 2.41 2.08 0
Blade leading edge top arc radius is R0.7, and trailing edge top arc radius is R0.65.
With reference to Figure 22.Figure 22 is the shell figure of the utility model high-efficiency and high-multiple foam generator.The rear portion of shell 16 is an air duct 17.The position that air duct 17 is connected with shell 16 is designed to turbination 18, inverted cone 18 and horizontal angle be 51 ° 30 '.And known air duct is simple conical.The design-calculated air duct has obviously reduced the eddy loss of air admission shell 16 like this, has improved the ability of fan blade aspirated air, has increased the delivery rate of fan, and then has increased the gas release of the utility model foam generator.
With reference to Figure 23 and Figure 24.Figure 23 and 24 is front view and lateral plans of the utility model high-efficiency and high-multiple foam generator foam screen.
Foam screen 19 is installed in the front of shell 16.It is by outer panel 20, interior plate 21, and outer end plate 22, inner end plate 23 is formed, and the mesh diameter of foam screen is 3 millimeters.Outer panel 20 is made positive taper, the angle of its four sides and axis be 12 ° 30 '; Interior plate 21 is made back taper, and the angle of its four sides and axis also is 12 ° 30 '.The width of the outer end plate between the vertex of a cone square outline line of outer panel 20 and interior plate 21 vertex of a cones square outline line is 50 millimeters.This foam screen owing to increased outer end plate part 22, makes the foaming area of whole foam screen increase by 3.3%, thereby has increased the complete machine gas release under the condition that does not increase foam screen contour dimension.
With reference to Figure 25.Figure 25 is the utility model high-efficiency and high-multiple foam generator proportioner structural representation.24 for leading to the main-supply of water turbine among the figure, angle design between the axis of nozzle 25 and proportioner 2 and the main-supply 24 is at 45, can reduce the loss of pressure that water flow to proportioner like this, degree of vacuum in the proportioner 2 is increased, thereby improved the ability that sucks foam liquid from foam liquid inlet 26, and then the complete machine gas release is increased, improve fire-fighting efficiency.Angle between the axis of nozzle 25 and proportioner 2 and the main-supply 24 all can between 40 °-50 °.

Claims (6)

1, a kind of high-efficiency and high-multiple foam generator, comprise Francis turbine, proportioner, nozzle, foam screen and fan, the runner nominal diameter that it is characterized in that described Francis turbine is 84 millimeters, the number of blade is 10, blade water inlet limit height is 9 millimeters, going out the waterside height is 17.75 millimeters, the angle that goes out between waterside and the crown line is 86.5 °, following ring is 13 millimeters with going out summit, waterside line arc radius, blade is 42 ° at the stagger angle that encircles down, edge is 42 millimeters apart from the distance of runner center of gyration in face of the same loop contacts down of blade, the same loop contacts face trailing edge down of blade is 20.5 millimeters apart from the distance of center of gyration, the same hat contact surface of blade trailing edge is 18.8 millimeters apart from the distance of center of gyration, the edge is apart from blade crown line 11.7,9, four cross-sectional plane I-I of 2 and 0 millimeters, II-II, III-III, the driving surface of the vane type line of IV-IV intercepting and the smooth line that the non-working surface molded lines is following each coordinate points, described Y-axis is apart from 18.8 millimeters of runner center of gyrations; X-axis is for going out the omnibearing line of waterside and crown intersection point, wherein:
The I-I cross section:
Y (millimeter) 1.27 247 10 12.35 driving surface X (millimeter) 1.54 2.01 2.28 2.97 0.39 non-working surface X (millimeter) 1.54 0.99 0.78 0.47 0.05 0.39
Line between the point of driving surface coordinate X=2.97, Y=7 millimeter and the point of X=0.39, Y=12.35 is the circular arc line of 45.51 millimeters of diameters,
The II-II cross section:
Y (millimeter) 0.92 247 10 13 16
Driving surface X (millimeter) 1.20 1.84 2.3 2.99 3.65 4.65 5.9
Non-working surface X (millimeter) 1.20 0.66 0.54 0.36 0.05 0.5 1.45
Y (millimeter) 17.05 18 20 21.1
Driving surface X (millimeter) 6.65 4.75
Line between the point of the point of non-working surface X (millimeter) 1.90 2.4 3.75 4.75 driving surface coordinate X=6.65, Y=17.05 millimeter and X=4.75, Y=21.1 millimeter is the circular arc line of 60 millimeters for the radius by the runner center of gyration,
The III-III cross section
Y (millimeter) 0.23 0.73 247 10 13
Driving surface X (millimeter) 0.73 1.23 1.57 2.08 2.86 3.65 4.65
Non-working surface X (millimeter) 0.73 0.23 0.22 0.20 0.16 0.10 0.5
Y (millimeter) 16 18 20 21 22.45 22.45
Driving surface X (millimeter) 5.9 7.4 10.5 14.4 16.21
Non-working surface X (millimeter) 1.45 2.4 3.75 4.55 6.2,16.21
Y (millimeter) 24 24 24.4
Driving surface X (millimeter)
Non-working surface X (millimeter) 9.6 14.7 11.80
Vane tip is the semi arch of R=1.4 millimeter, and the coordinate X=14.85 in its center of circle, Y=22.45 millimeter, root of blade are the semi arch of R=0.5 millimeter, the coordinate X=0.73 in its center of circle, Y=0.73 millimeter,
The IV-IV cross section
Y (millimeter) 0 0.72 247 10 13
Driving surface X (millimeter) 0.5 1.05 1.45 2.0 2.78 3.75 4.5 non-working surface X (millimeter) 0.5 0000 0.05 0.5
Y (millimeter) 16 18 20 21 22.45 23.85
Driving surface X (millimeter) 6.05 5.5 11.4 16.3
Non-working surface X (millimeter) 1.45 2.5 4 4.9 6.8 11.8
Vane tip is the semi arch of R=1.4 millimeter, its center of circle coordinate X=11.25, Y=21.725 millimeter, and root of blade is the semi arch of R=0.5 millimeter, its center of circle coordinate X=0.5, Y=0.72 millimeter.
2, according to the described high-efficiency and high-multiple foam generator of claim 1, it is characterized in that fan blade is 3, length of blade is 193.5 millimeters, the cross-sectional plane molded lines of its driving surface and non-working surface is similar to and becomes wheelbase concave, convex elliptic arc, its vane type line shape, by along parallel with the blade base and respectively apart from the base the used section drawing of 10,35,60,85.5,111,136.5,162 and 186.5 millimeters I-I～VIII-VIII cross-sectional plane determine, wherein the driving surface of each blade section figure and non-working surface molded lines are the smooth line of following each coordinate points, wherein: Y 1Be the ordinate of driving surface, Y 2Be the ordinate of non-working surface, blade thickness Δ Y=Y 1-Y 2,
Wherein:
Cross-sectional plane I-I:
X -41 -40 -37 -35 -30 -25 -20 -15
Y 1-8.86 -6.70 -5.08 -4.36 -2.58 -1.00 0.50 1.98
Y 2-8.86 -11.16 -3.40 -3.64 -14.38 -14.74 -14.86 -14.50
ΔY?0 4.46 8.32 9.34 11.80 13.74 15.36 16.48
X -10 -5 0 5 10 15 20 25
Y 1?3.43 4.80 6.10 7.20 8.26 9.27 10.30 11.26
Y 2-13.75 -12.65 -11.30 -9.57 -7.63 -5.50 -3.18 -0.68
ΔY?17.18 17.45 17.40 16.77 15.89 14.77 13.48 11.94
X 30 35 40 43 45 46 48 49.8
Y 1?12.40 13.70 15.10 16.00 16.60 16.90 17.40 15.70
Y 2?1.88 4.50 7.22 9.18 10.56 11.34 12.98 15.70
ΔY?10.52 9.20 7.88 6.82 6.04 5.56 4.42 0
Blade leading edge top arc radius is R3, and trailing edge top arc radius is R1.4;
Cross-sectional plane II-II:
X -46.9 -45 -43 -40 -35 -30 -25 -20
Y 1-5.25 -3.12 -2.60 -2.20 -1.85 -1.50 -1.15 -0.65
Y 2-5.25 -7.58 -8.56 -9.46 -10.20 -10.58 -10.76?-10.62
ΔY?0 4.46 5.96 7.26 8.35 9.08 9.61 9.97
X -15 -10 -5 0 5 10 15 20
Y 1-0.10 0.55 1.20 2.00 2.80 3.55 4.35 5.15
Y 2-10.62?-10.24?-9.54 -8.55 -7.44 -6.20 -4.82 -3.40
ΔY?10.52 10.79 10.74 10.55 10.24 9.75 9.17 8.55
X 25 30 35 40 45 50 53 55 57.3
Y 1?5.95 6.83 7.80 8.85 10.05 11.25 12.00 12.35 11.55
Y 2-1.80 -0.16 1.58 3.38 5.26 7.20 8.50 9.52 11.55
ΔY?7.75 6.99 6.22 5.47 4.79 4.05 3.50 2.83 0
Blade leading edge top arc radius is that R1.9 trailing edge top arc radius is R1.1;
Cross-sectional plane III-III:
X -45.1 -42 -40 -35 -30 -25 -20
Y 1-1.0 0.65 0.88 0.88 0.58 0.30 0.10
Y 2-1.0 -3.78 -4.54 -6.14 -7.32 -8.20 -8.78
ΔY?0 4.43 5.42 7.02 7.90 8.50 8.88
X -15 -10 -5 0 5 10 15 20 25
Y 1?0 0 0.20 0.45 0.75 1.20 1.68 2.15 2.65
Y 2-9.08?-9.12 -8.90 -8.40 -7.60 -6.64 -5.66?-4.60?-3.54
ΔY?9.08 9.12 9.10 8.85 8.35 7.84 7.34 6.75 6.19
X 30 35 40 45 50 53 55 56.7
Y 13.23 3.85 4.55 5.40 6.38 6.98 7.44 6.70
Y 2-2.44 -1.20 0.08 1.40 2.96 4.02 4.96 6.70
ΔY?5.67 5.05 4.47 4.00 3.42 2.96 2.48 0
Blade leading edge top arc radius is R1.8, and trailing edge top arc radius is R1;
Cross-sectional plane IV-IV:
X -41.6 -40 -38 -35 -30 -25 -20 -15
Y 1?0.45 1.19 1.90 1.97 1.60 1.20 0.80 0.50
Y 2?0.45 -1.16?-2.31 -3.62 -5.20?-6.40?-7.30?-7.88
ΔY?0 2.35 4.21 5.59 6.80 7.60 8.10 8.38
X -10 -5 0 5 10 15 20 25
Y 1?0.32 0.20 0.13 0.10 0.15 0.30 0.53 0.90
Y 2-8.20 -8.26?-8.15 -7.6?4?-7.14?-6.42?-5.60?-4.66
ΔY?8.52 8.46 8.28 7.74 7.29 6.72 6.13 5.56
X 30 35 40 45 50 52 53.7
Y 1?1.28 1.75 2.30 2.90 3.55 3.84 3.3
Y 2-3.66 -2.62?-1.52 -0.30 1.18 1.96 3.3
ΔY?4.94 4.37 3.82 3.26 2.37 1.88 0
Blade leading edge top arc radius is R0.95, and trailing edge top arc radius is R0.7;
Cross-sectional plane V-V:
X -38.1 -36 -35 -30 -25 -20 -15
Y 1?1.3 2.72 2.85 2.49 1.90 1.20 0.68
Y 2?1.3 -0.96 -1.52?-3.75 -5.35 -6.50?-7.35
ΔY?0 3.68 4.37 6.24 7.25 7.70 8.03
X -10 -5 0 5 10 15 20 25
Y 1?0.32 0.05?-0.18 -0.32 -0.40 -0.45 -0.37 -0.25
Y 2-7.90?-8.15?-8.20 -7.90 -7.40 -6.85 -6.14 -5.40
ΔY?8.22 8.20 8.02 7.58 7.00 6.40 5.77 5.15
X 30 35 40 45 48 50 51.7
Y 1-0.10 0.15 0.55 1.05 1.35 1.46 0.8
Y 2-4.58?-3.72?-2.70 -1.70 -0.96 -0.36 0.8
ΔY?4.48 3.87 3.25 2.75 2.31 1.82 0
Blade leading edge top arc radius is R1, and trailing edge top arc radius is R0.7;
Cross-sectional plane VI-VI:
X -35.4 -33 -30 -25 -20 -15 -10 -5
Y 1?2.05 3.42 3.40 2.80 1.92 1.12 0.46 0
Y 2?2.05 -0.24?-1.88?-3.90 -5.40?-6.50?-7.38?-8.00
ΔY?0 3.66 5.28 6.70 7.32 7.62 7.86 8.00
X 0 5 10 15 20 25 30 35
Y 1-0.40 -0.70?-0.96?-1.15 -1.25?-1.30?-1.30?-1.15
Y 2-8.40 -8.28?-7.90?-7.55 -6.92?-6.20?-5.55?-4.68
ΔY?8.00 7.58 6.94 6.40 5.67 4.90 4.25 3.53
X 40 45 47 49.7
Y 1-0.80 -0.42?-0.38?-0.90
Y 2-3.80 -2.78?-2.20?-0.90
ΔY?3.00 2.36 1.82 0
Blade leading edge top arc radius is R1, and trailing edge top arc radius is R0.6;
Cross-sectional plane VII-VII:
X -33.16?-31 -30 -27 -25 -20 -15 -10
Y 1?2.70 3.80 3.80 3.58 3.28 2.30 1.40 0.55
Y 2?2.70 0.26 -0.45 -2.14 -2.98 -4.60 -5.94 -7.05
ΔY?0 3.54 4.25 5.72 6.26 6.90 7.34 7.60
X -5 0 5 10 15 20 25 30
Y 1-0.10 -0.60 -1.00 -1.38 -1.65 -1.90 -2.05 -2.05
Y 2-7.98 -8.40 -8.46 -8.32 -8.05 -7.60 -6.96 -6.25
ΔY?7.88 7.80 7.46 6.94 6.40 5.70 4.91 4.20
X 35 40 42 44 45 48.1
Y 1-1.95 -1.75 -1.65 -1.42 -1.36 -2.00
Y 2-5.46 -4.58 -4.20 -3.78 -3.52 -2.00
ΔY?3.51 2.83 2.55 2.36 2.16 0
Blade leading edge top arc radius is R0.95, and trailing edge top arc radius is R0.7;
Cross-sectional plane VIII-VIII:
X -31.8 -30 -29 -27 -25 -20 -15 -10
Y 1?1.8 3.18 3.34 3.34 3.20 2.45 1.40 0.55
Y 2?1.8 -0.18 -0.80 -1.96 -2.84 -4.67 -5.98?-7.04
ΔY?0 3.36 4.14 5.30 6.04 7.07 7.38?-7.59
X -5 0 5 10 15 20 25 30
Y 1-0.10?-0.70 -1.17 -1.50 -1.88 -2.15 -2.40?-2.52
Y 2-7.85?-8.40 -8.40 -8.32 -7.84 -7.38 -6.82?-6.34
ΔY?7.75 7.70 7.23 6.82 5.96 5.23 4.42 3.82
X 35 40 42 44 46.7
Y 1-2.50 -2.38 -2.35 -2.22 -2.85
Y 2-5.76 -5.04 -4.76 -4.30 -2.85
ΔY?3.26 2.66 2.41 2.08 0
Blade leading edge top arc radius is R0.7, and trailing edge top arc radius is R0.65.
3, according to the described high-efficiency and high-multiple foam generator of claim 2, it is characterized in that the air duct of described fan and shell bonded assembly position are turbination, described rounding element of a cone and horizontal angle be 51 ° 30 '.
4, according to claim 1 or 2 or 3 described high-efficiency and high-multiple foam generators, it is characterized in that being shaped on the outer end plate part between the outer positive wimble fraction vertex of a cone square outline line of described foam screen and the interior back taper part vertex of a cone square outline line, its width is 50 millimeters, the side of the side of described outer positive wimble fraction and interior back taper part and the angle of axis be 12 ° 30 '.
5,, it is characterized in that the ratio mixed pipe line of described proportioner and the angle that leads between the main-supply of water turbine are 40 °～50 ° according to the described high-efficiency and high-multiple foam generator of claim 4.
6,, it is characterized in that the angle between described ratio mixed pipe line and the main-supply is 45 ° according to the described high-efficiency and high-multiple foam generator of claim 5.
CN 96249612 1996-12-30 1996-12-30 High effective and high multiple foam generator Expired - Lifetime CN2284082Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 96249612 CN2284082Y (en) 1996-12-30 1996-12-30 High effective and high multiple foam generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 96249612 CN2284082Y (en) 1996-12-30 1996-12-30 High effective and high multiple foam generator

Publications (1)

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CN2284082Y true CN2284082Y (en) 1998-06-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 96249612 Expired - Lifetime CN2284082Y (en) 1996-12-30 1996-12-30 High effective and high multiple foam generator

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1065444C (en) * 1996-12-30 2001-05-09 浙江永安消防有限公司 High-efficiency and high-multiple foam generator
US8079823B2 (en) 2004-07-21 2011-12-20 Delta T Corporation Fan blades
CN101608640B (en) * 2004-07-21 2012-02-08 德尔塔T公司 Fan blades and modifications

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1065444C (en) * 1996-12-30 2001-05-09 浙江永安消防有限公司 High-efficiency and high-multiple foam generator
US8079823B2 (en) 2004-07-21 2011-12-20 Delta T Corporation Fan blades
CN101608640B (en) * 2004-07-21 2012-02-08 德尔塔T公司 Fan blades and modifications

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