CN1065445C - Portable high-efficiency and high-multiple foam generator - Google Patents

Portable high-efficiency and high-multiple foam generator Download PDF

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Publication number
CN1065445C
CN1065445C CN96114291A CN96114291A CN1065445C CN 1065445 C CN1065445 C CN 1065445C CN 96114291 A CN96114291 A CN 96114291A CN 96114291 A CN96114291 A CN 96114291A CN 1065445 C CN1065445 C CN 1065445C
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millimeter
working surface
working face
working
millimeters
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CN96114291A
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CN1186705A (en
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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 present invention relates to a portable efficient foam generator with high times, which comprises a scoop-type turbine, a nozzle, a foam screen and a fan. The pitch circle diameter of the turbine runner is 109 millimeters, and the number of the scoops is 17. The scoop blade line has less hydraulic loss. The number of the blades is 3, and the length is 151mm. The swing diameter of the turning wheel is 456 millimeters, and the wind tunnel of the blade line has less loss and high efficiency. Under the condition of inlet pressure showing 0.3mpa-1.0mpa, the foam number of the foam generator is increased from 13 to 15%. The present invention has the high fire-fighting efficiency and good suitability.

Description

Portable high-efficiency and high-multiple foam generator
The present invention relates to a kind of preceding foam maker of directly making fire foam that uses.
Portable high-expansion foam generator is the key equipment of portable high expansion foam fire-extinguishing system.Known portable high power foam generator is made up of impulse turbine, nozzle, foam screen and fan.During work, water and foam solution enter generator with certain pressure after mixing in desired ratio, are divided into two the tunnel, the one tunnel then and promote to atomize after the hydraulic turbine work done; Another road directly atomizes by nozzle, spray to foam screen then, on the inner surface 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-foam aggregation with the mixed liquor film, in order to category-A or the category-B fire puted out a fire to save life and property quickly and effectively, and can control the spill fire of liquefied petroleum gas, 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 the confined space such as oil depot, warehouse, liquefied gas station, in addition, portable high-expansion foam generator also has the advantage that volume is little, in light weight, flexible and convenient to use, adjusting to changed conditions property is strong, can be used for the place that the position of breaking out of fire is difficult to determine, as underground engineering, mine etc.
The portable high-expansion foam generator of people's use at present is standardized product, as meet the portable high-expansion foam generator of China standard GB 50196-93 " high multiple, medium expansion foam fire extinguishing system design specification " regulation, though this foam maker can satisfy the GB requirement, but its design is not satisfactory, gas release (rice 3/ minute) lower, be under the condition of 0.3-1.0MPa at import step pressure, gas release has only the 35-85 m3/min.The inventor 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 pitch diameter of Pelton wheel is 105 millimeters, and the bucket number is 16, and bucket vane type line shape is not ideal enough in addition, thereby under the essentially identical condition of structure contour dimension, the hydraulic turbine fails to have given play to maximum efficient, and it is lower to exert oneself, and has influenced the gas release of foam maker.
2, the fan blade number is 4, and under the essentially identical condition of structure contour dimension, the effective area of passage of air duct and the ratio of the overcurrent gross area are less, and its vane type line is selected for use very unrationally in addition, and the blow rate required of fan is lower, has reduced the inflation gas release.
The objective of the invention is to overcome above-mentioned shortcoming, provide a kind of identical at import step pressure, under the essentially identical condition of structure and weight, the portable high-efficiency and high-multiple foam generator that gas release is bigger.
The objective of the invention is to realize in the following manner:
Portable high-efficiency and high-multiple foam generator of the present invention comprises Pelton wheel, nozzle, foam screen and fan, the runner pitch diameter of described Pelton wheel is 109 millimeters, the bucket number is 17, the bucket left-right symmetry, the working face of wherein left half bucket blade and non-working surface molded lines shape can be by dividing the water sword 0-0 that line parallels with bucket, 2-2,4-4,6-6, the smooth line of 8-8 and apart 4 millimeters five each coordinate points of vertical section is determined, wherein the 0-0 vertical section coincides with dividing water sword line, Y-axis is buttock line separately among the figure, X-axis is an origin of coordinate with runner pitch radius R54.5 millimeter, wherein:
The 0-0 vertical section:
Y (millimeter)-15.5-14.5-13.5-10.5-7.5-4.5
Working face X (millimeter) 0 0.5+2+1.86+1.73
Non-working surface X (millimeter)-10.84-8.8-6.7-6.2-5.57
Y (millimeter) 0 4.5 8.5 11.5 15.5
Working face X (millimeter)+1.52+1.32+1.14+1 0
Non-working surface X (millimeter)-5.5-5.1-4.6-4-1.15
The 2-2 vertical section:
Y (millimeter)-14.0-13.5-10.5-7.5-4.5 0 4.5
Working face X (millimeter) 0-2.0-5.1-5.9-6.2-6.2-5.9
Non-working surface X (millimeter)-8.9-9.6-10.2-10.5-10.5-10.3
Y (millimeter) 8.5 11.5 11.6
Working face X (millimeter)-5.5-5.1-5.09
Non-working surface X (millimeter)-9.7-7.9-7.5
4-4 vertical section: Y, (millimeter),-18.2,-15.2,-13.5,-10.5,-7.5,-4.5 working face X, (millimeter), 0,-4.3,-6.8,-8,-8.5 non-working surface X, (millimeter), 0,-8.6,-10.7,-11.8-12.3Y, (millimeter), 0, 4.5, 8.5, 11.5, 15.3, 15.5 working face X, (millimeter),-8.5,-8,-6.9,-5.5, 0 non-working surface X, (millimeter)-12.4,-12.1,-11.2,-9.8,-6.25Y, (millimeter), 17.5 working face X, (millimeter) non-working surface X, (millimeter), 06-6 vertical section: Y, (millimeter),-17.0,-14.3,-13.5,-10.5,-7.5,-4.5 working face X, (millimeter), 0,-2.7,-6.2,-7.6,-8.3 non-working surface X, (millimeter)-2.7,-7.2,-9.9,-11.4-12.2Y, (millimeter), 0, 4.5, 8.5, 11.5, 13, 15 working face X, (millimeter),-8.4,-7.4,-5.1,-1.6, 0 non-working surface X, (millimeter)-12.4,-11.8,-10,-7.4, 08-8 vertical section: Y, (millimeter),-14.2,-13.5,-11,-10.5,-7.5,-4.5 working face X, (millimeter), 0,-2.1,-4.7,-5.7 non-working surface X, (millimeter), 0,-2.4,-6.8,-9,-10.3Y, (millimeter), 0, 4.5, 6.1, 8.5, 10 working face X, (millimeter),-5.4,-2.8, 0 non-working surface X, (millimeter)-10.4,-8.7,-4.2, 0
Preferable is that portable high-efficiency and high-multiple foam generator impeller vane number of the present invention is 3, length of blade is 151 millimeters, the impeller tactical diameter is 456 millimeters, vane type line is determined by the sectional view that parallels with the base and I-I of 7.2,25.7,38,49.3,73,96.6,120 and 143.18 millimeters～eight cross sections of VIII-VIII are done apart from the base respectively, wherein the working face of each sectional view and non-working surface molded lines are the smooth line of following each coordinate points, wherein Y 1Be the ordinate of working face, Y 2Be the ordinate of non-working surface, vane thickness △ Y=Y 1-Y 2, wherein:
Cross section I-I:
X -51 -50 -48．75 -47．5 -45 -40 -35 -30
Y 1 -13 -12．5 -10．25 -9．25 -7．5 -5．25 -3．75 -2．37
Y 2 -13 -13．75 -15．12 -15．63 -16．12 -16．82 -16．5 -15．75
△Y 0 1．25 4．87 6．38 8．62 11．57 12．75 13．38
X -25 -20 -15 -10 -5
Y 1 0 3．5 8．25 12．75 15．25
Y 2 -14．75 -13．75 -13．37 -13．9 -15
△Y 14．75 17．25 21．62 26．65 30．25
X 0 5 10 15 20 25 30 35 40
Y 1 16．12 15．9 15．5 15．63 16．25 17．75 19．25 21．25 23．5
Y 2 -15．5 -13．5 -9．88 -2．5 1．63 5．5 8．25 11．12 14．5
△Y 3．162 29．4 25．38 18．13 14．62 12．25 11 10．13 9
X 45 50 55 57．5 60 61
Y 1 25．75 28 30．63 32 31．5 30．25
Y 2 17．9 21．25 24．75 26．75 28．5 30．25
△Y 7．85 6．75 5．88 5．25 3 0
The leading edge radius of corner is R2.2, trailing edge radius of corner R1.8;
Cross section II-II:
Y 1 19 20．63 22．5 24．25 25．25 25．25 24．13
Y 2 11．88 14．5 17．25 20．5 22．13 22．75 24．13
△Y 7．12 6．13 5．25 3．75 3．12 2．5 0
The leading edge radius of corner is R1.8, and the trailing edge radius of corner is R1.1;
Cross section VIII-VIII:
X -48．5 -47．5 -46．25 -45 -40 -35 -30
Y 1 -9．25 -6．25 -5．38 -4．75 -3 -2．13 -1．13
Y 2 -9．25 -10．5 -10．75 -11 -11 -11 -10．75
△Y 0 4．25 5．37 6．25 8 8．87 9．62
X -25 -20 -15 -10 -5 0
Y 1 -0．13 1．12 2．25 3．5 4．88 6．25
Y 2 -10．75 -10．25 -9．5 -8．5 -7．38 -5．75
△Y 10．88 11．37 11．75 12 12．26 12
X 5 10 15 20 25 30 35 40
Y 1 7．5 8．75 10．13 11．63 13 14．63 16．13 17．88
Y 2 3．88 -2．38 -0．25 1．88 4 6．38 8．88 11．13
△Y 11．3 11．13 10．38 9．75 9 8．25 7．25 6．75
X 45 50 55 57．75 58．5 59．2
Y 1 19．38 21．13 23．38 24．38 24．25 23．38
Y 2 13．5 16．25 19．38 21．12 22 23．38
△Y 5．88 4．88 4 3．26 2．25 0
The leading edge radius of corner is R1.7, and the trailing edge radius of corner is R1.
Portable high-efficiency and high-multiple foam generator of the present invention is because its reasonable in design, particularly carried out well-designed and improvement to its bucket vane type line, its hydraulic loss is very little, the increase of exerting oneself of the hydraulic turbine, constant at inlet pressure, runner contour dimension only increases 2.9%, and under the situation of (pitch diameter increases to 109 millimeters, runner external diameter by known 105 millimeters and increases to 144 millimeters by 140 millimeters), gas release has but increased more than 8%.
Portable high-efficiency and high-multiple foam generator of the present invention is owing to the fan with 4 known blades is improved to 3 blades, increased the area of passage of air, for guaranteeing to reduce under the situation of a slice at blade quantity, still can produce enough thrust to air, the shape of blade has been carried out accurately reasonably design, thereby the blast fan diameter only increase 1.3% and weight reduce under 7% the situation, the operating efficiency of fan greatly improves.Results of wind tunnel shows that this fan work efficient improves 7%, and then makes whole foam maker gas release improve 7%, and the weight of fan has reduced 8%.
When above-mentioned Pelton wheel and said fans are used together, can make the complete machine gas release improve 15%, improved fire-fighting efficiency greatly.
Other details of the present invention 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 portable high-efficiency and high-multiple foam generator of the present invention;
Fig. 2 is the rotaring wheel structure figure of portable high-efficiency and high-multiple foam generator Pelton wheel of the present invention;
Fig. 3 is the side view of Fig. 2;
Fig. 4 is Fig. 2 runner bucket structural representation;
Fig. 5-Fig. 9 divides water sword line 0-0,2-2 that 0-0 parallels, 4-4,6-6,8-8 and apart 4 millimeters profilographs of being done along Fig. 4 bucket;
Figure 10 is a portable high-efficiency and high-multiple foam generator blast fan structure chart of the present invention;
Figure 11 is the side figure of Figure 10;
Figure 12 is the blade construction figure of Figure 10 and fan shown in Figure 11;
Figure 13 is the upward view of Figure 12;
Figure 14-Figure 21 is the blade profile figure along Figure 12 I-I～VIII-the VIII line is done.
With reference to Fig. 1.Fig. 1 is the structure working principle figure of portable high-efficiency and high-multiple foam generator of the present invention.This foam maker is the same with known foam maker also to be made up of Pelton wheel 1, nozzle 2, foam screen 3 and fan 4.Its course of work is identical with aforementioned known portable foam generator.
With reference to Fig. 2 and Fig. 3.Fig. 2 and Fig. 3 represent portable high-efficiency and high-multiple foam generator pelton turbine rotating wheel structure chart of the present invention.This runner is the same with known rotaring wheel structure, difference only is that the pitch diameter of runner increases to 109 millimeters by 105 millimeters, the bucket number increases to 17 by 16, so that seldom in the increase of hydraulic turbine gabarit circumferential size, only increased under 2.9% the situation, to the improvement of blade shape, increased substantially exerting oneself of the hydraulic turbine in addition.
With reference to Fig. 4-Fig. 9.Fig. 4 is a runner bucket structural representation.The 0-0 line is represented the branch water sword line of bucket among the figure, and 2-2,4-4,6-6,8-8 represent to divide the water sword line that line parallels with bucket, its apart 4 millimeters.Fig. 5-Fig. 9 represents that the front side of vane of each section and non-working surface molded lines are shaped as the smooth line of following each coordinate points along the blade type line chart of 0-0,2-2,4-4,6-6, the intercepting of 8-8 line.Y-axis is a buttock line separately among each figure; X-axis is an origin of coordinate with above-mentioned runner pitch radius R54.5 millimeter, wherein:
0-0 vertical section (Fig. 5):
Y (millimeter)-15.5-14.5-13.5-10.5-7.5-4.5
Working face X (millimeter) 0+0.5+2+1.86+1.73
Non-working surface X (millimeter)-10.84-8.8-6.7-6.2-5.57
Y (millimeter) 0 4.5 8.5 11.5 15.5
Working face X (millimeter)+1.52+1.32+1.14+1 0
Non-working surface X (millimeter)-5.5-5.1-4.6-4-1.15
2-2 vertical section (Fig. 6):
Y (millimeter)-14.0-13.5-10.5-7.5-4.5 0 4.5
Working face X (millimeter) 0-2.0-5.1-5.9-6.2-6.2-5.9
Non-working surface X (millimeter)-8.9-9.6-10.2-10.5-10.5-10.3
Y (millimeter) 8.5 11.5 11.6
Working face X (millimeter)-5.5-5.1-5.09
Non-working surface X (millimeter)-9.7-7.9-7.5
4-4 vertical section (Fig. 7):
Y (millimeter)-18.2-15.2-13.5-10.5-7.5-4.5
Working face X (millimeter) 0-4.3-6.8-8-8.5
Non-working surface X (millimeter) 0-8.6-10.7-11.8-12.3
Y (millimeter) 0 4.5 8.5 11.5 15.3 15.5
Working face X (millimeter)-8.5-8-6.9-5.5 0
Non-working surface X (millimeter)-12.4-12.1-11.2-9.8-6.25
Y (millimeter) 17.5
Working face X (millimeter)
Non-working surface X (millimeter) 0
6-6 vertical section (Fig. 8):
Y (millimeter)-17.0-14.3-13.5-10.5-7.5-4.5
Working face X (millimeter) 0-2.7-6.2-7.6-8.3
Non-working surface X (millimeter)-2.7-7.2-9.9-11.4-12.2
Y (millimeter) 0 4.5 8.5 11.5 13 15
Working face X (millimeter)-8.4-7.4-5.1-1.6 0
Non-working surface X (millimeter)-12.4-11.8-10-7.4 0
8-8 vertical section (Fig. 9):
Y (millimeter)-14.2-13.5-11-10.5-7.5-4.5
Working face X (millimeter) 0-2.1-4.7-5.7
Non-working surface X (millimeter) 0-2.4-6.8-9-10.3
Y (millimeter) 0 4.5 6.1 8.5 10
Working face X (millimeter)-5.4-2.8 0
Non-working surface X (millimeter)-10.4-8.7 4.2 0
The bucket of this molded lines is streamlined good, and hydraulic test shows that its hydraulic loss is little, and water can be changed, and atomization is good later on.
With reference to Figure 10 and Figure 11.Figure 10 and Figure 11 are portable high-efficiency and high-multiple foam generator blast fan structure charts of the present invention.It is made up of blade 5, half 6 of impeller boss, coupling sleeve 7 etc.The number of the blade 5 of this impeller is 3, and length of blade is 151 millimeters, and the impeller tactical diameter is 456 millimeters.The outer shape of blade 5 such as Figure 12 and shown in Figure 13.I shown in Figure 12-I II-II ... VIII VIII line is represented the position of sectional view, and the position in these cross sections is respectively 7.2,25.7,38,49.3,73,96.6,120 and 143.18 millimeters apart from blade base 8.The blade exradius is apart from 228 millimeters of the centres of gyration.Wherein the working face of each sectional view and non-working surface molded lines are the smooth line of the coordinate points of following each accompanying drawing, Y among the figure 1Be the ordinate of working face, Y 2Be the ordinate of non-working surface, △ Y is a vane thickness.Wherein:
Cross section I-I (Figure 14)
X -51 -50 -48．75 -47．5 -45 -40 -35 -30
Y 1 -13 -12．5 -10．25 -9．25 -7．5 -5．25 -3．75 -2．37
Y 2 -13 -13．75 -15．12 -15．63 -16．12 -16．82 -16．5 -15．75
△Y 0 1．25 4．87 6．38 8．62 11．57 12．75 13．38
X -25 -20 -15 -10 -5
Y 1 0 3．5 8．25 12．75 15．25
Y 2 -14．75 -13．75 -13．37 -13．9 -15
△Y 14．75 17．25 21．62 26．65 30．25
X 0 5 10 15 20 25 30 35 40
Y 1 16．12 15．9 15．5 15．63 16．25 17．75 19．25 21．25 23．5
Y 2 -15．5 -13．5 -9．88 -2．5 1．63 5．5 8．25 11．12 14．5
△Y 3．162 29．4 25．38 18．13 14．62 18．25 11 10．13 9
X 45 50 55 57．5 60 61
Y 1 25．75 28 30．63 32 31．5 30．25
Y 2 17．9 21．25 24．75 26．75 28．5 30．25
△Y 7．85 6．75 5．88 5．25 3 0
△Y 13．13 12．63 12．25 11．63 10．75 10 9．13 8
X 40 45 50 55 57．5 58．75 59．5
Y 1 19 20．63 22．5 24．25 25．25 25．25 24．13
Y 2 11．88 14．5 17．25 20．5 22．13 22．75 24．13
The leading edge radius of corner is R1.8, and the trailing edge radius of corner is R1.1;
Cross section VIII-VIII (Figure 21):
X -48．5 -47．5 -46．25 -45 -40 -35 30
Y 1 -9．25 -6．25 -5．38 -4．75 -3 -2．13 -1．13
Y 2 -9．25 -10．5 -10．75 -11 -11 -11 -10．75
△Y 0 4．25 5．37 6．25 8 8．87 9．62
X -25 -20 -15 -10 -5 0 5
Y 1 -0．13 1．12 2．25 3．5 -4．88 6．25 7．5
Y 2 -10．75 -10．25 -9．5 -8．5 -7．38 -5．75 -3．88
△Y 10．88 11．37 11．75 12 12．26 12 11．13
X 10 15 20 25 30 35 40
Y 1 8．75 10．13 11．63 13 14．63 16．13 17．88
Y 2 -2．38 -0．25 1．88 4 6．38 8．88 11．13
△Y 11．13 10．38 9．75 9 8．25 7．25 6．75
X 45 50 55 57．5 58．5 59．2
Y 1 19．38 21．13 23．38 24．38 24．25 23．38
Y 2 13．5 16．25 19．38 21．12 22 23．38
△Y 5．88 4．88 4 3．26 2．25 0
The leading edge radius of corner is R1.7, and the trailing edge radius of corner is R1.
Portable high-efficiency and high-multiple foam generator of the present invention, the fan blade number of sheets is few, and area of passage is big, and its vane type line shape is reasonable, high efficiency.This fan and the supporting use of the above-mentioned improved hydraulic turbine still are that the gas release of foam maker can reach 40-100 rice under the situation of 0.3MPa-1.0MPa at inlet pressure 3/ minute, and the gas release of known portable high-expansion foam generator only is a 35-85 rice 3/ minute, compared to the prior art, gas release improves 13-15%, so its fire-fighting efficiency height is more suitable.

Claims (2)

1, a kind of portable high-efficiency and high-multiple foam generator, comprise Pelton wheel (1), nozzle (2), foam screen (3) and fan (4), the runner pitch diameter that it is characterized in that described Pelton wheel (1) is 109 millimeters, bucket is 17, the bucket left-right symmetry, the working face of wherein left half bucket blade and non-working surface molded lines shape can be by dividing the water sword 0-0 that line parallels with bucket, 2-2,4-4,6-6, the smooth line of 8-8 and apart 4 millimeters five each coordinate points of vertical section is determined, wherein the 0-0 vertical section coincides with dividing water sword line, Y-axis is buttock line separately among the figure, X-axis is an origin of coordinate with runner pitch radius R54.5 millimeter, wherein:
The 0-0 vertical section:
Y (millimeter)-15.5-14.5-13.5-10.5-7.5-4.5
Working face X (millimeter) 0 0.5+2+1.86+1.73
Non-working surface X (millimeter)-10.84-8.8-6.7-6.2-5.57
Y (millimeter) 0 4.5 8.5 11.5 15.5
Working face X (millimeter)+1.52+1.32+1.14+1 0
Non-working surface X (millimeter)-5.5-5.1-4.6-4-1.15
The 2-2 vertical section:
Y (millimeter)-14.0-13.5-10.5-7.5-4.5 0 4.5
Working face X (millimeter) 0-2.0-5.1-5.9-6.2-6.2-5.9 non-working surface X (millimeter)-8.9-9.6-10.2-10.5-10.5-10.3
Y (millimeter) 8.5 11.5 11.6
Working face X (millimeter)-5.5-5.1-5.9
Non-working surface X (millimeter)-9.7-7.9-7.5
The 4-4 vertical section:
Y (millimeter)-18.2-15.2-13.5-10.5-7.5-4.5
Working face X (millimeter) 0-4.3-6.8-8-8.5
Non-working surface X (millimeter) 0-8.6-10.7-11.8-12.3
Y (millimeter) 0 4.5 8.5 11.5 15.3 15.5
Working face X (millimeter)-8.5-8-6.9-5.5 0
Non-working surface X (millimeter)-12.4-12.1-11.2-9.8-6.25
Y (millimeter) 17.5
Working face X (millimeter)
Non-working surface X (millimeter) 0
The 6-6 vertical section:
Y (millimeter)-17.0-14.3-13.5-10.5-7.5-4.5
Working face X (millimeter) 0-2.7-6.2-7.6-8.3
Non-working surface X (millimeter)-2.7-7.2-9.9-11.4-12.2
Y (millimeter) 0 4.5 8.5 11.5 13 15
Working face X (millimeter)-8.4-7.4-5.1-1.6 0
Non-working surface X (millimeter)-12.4-11.8-10-7.4 0
The 8-8 vertical section:
Y (millimeter)-14.2-13.5-11-10.5-7.5-4.5
Working face X (millimeter) 0-2.1-4.7-5.7
Non-working surface X (millimeter) 0-2.4-6.8-9-10.3
Y (millimeter) 0 4.5 6.1 8.5 10
Working face X (millimeter)-5.4-2.8 0
Non-working surface X (millimeter)-10.4-8.7-4.2 0
2, according to the described portable high-efficiency and high-multiple foam generator of claim 1, the number of blade that it is characterized in that described fan (4) impeller is 3, length of blade is 151 millimeters, and the impeller tactical diameter is 456 millimeters, and vane type line is by paralleling with the base and respectively apart from the base 7.2, the sectional view that I-I of 25.7,38,49.3,73,96.6,120 and 143.18 millimeters～eight cross sections of VIII-VIII are done is determined, wherein the working face in each cross section and non-working surface molded lines are the smooth line of following each coordinate points, Y 1Be the ordinate of working face, Y 2Be the ordinate of non-working surface, vane thickness △ Y=Y 1-Y 2, wherein:
Cross section I-I
X -51 -50 -48．75 -47．5 -45 -40 -35 -30
Y 1 -13 -12．5 -10．25 -9．25 -7．5 -5．25 -3．75 -2．37
Y 2 -13 -13．75 -15．12 -15．63 -16．12 -16．82 -16．5 -15．75
△Y 0 1．25 4．87 6．38 8．62 11．57 12．75 13．38
X -25 -20 -15 -10 -5
Y 1 0 3．5 8．25 12．75 15．25
Y 2 -14．75-13．75 -13．37 -13．9 -15
△Y 14．75 17．25 21．62 26．65 30．25
X 0 5 10 15 20 25 30 35 40
Y 1 16．12 15．9 15．5 15．63 16．25 17．75 19．25 21．25 23．5
Y 2 -15．5 -13．5 -9．88 -2．5 1．63 5．5 8．25 11．12 14．5
△Y 3．162 29．4 25．38 18．13 14．62 18．25 11 10．13 9
X 45 50 55 57．5 60 61
Y 1 25．75 28 30．63 32 31．5 30．25
Y 2 17．9 21．25 24．75 26．75 28．5 30．25
△Y 7．85 6．75 5．88 5．25 3 0
The leading edge radius of corner is R2.2, trailing edge radius of corner R1.8;
Cross section II-II
X -50．55 -48．75 -47．5 -45 -40 -35 -30
CN96114291A 1996-12-30 1996-12-30 Portable high-efficiency and high-multiple foam generator Expired - Fee Related CN1065445C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN96114291A CN1065445C (en) 1996-12-30 1996-12-30 Portable high-efficiency and high-multiple foam generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN96114291A CN1065445C (en) 1996-12-30 1996-12-30 Portable high-efficiency and high-multiple foam generator

Publications (2)

Publication Number Publication Date
CN1186705A CN1186705A (en) 1998-07-08
CN1065445C true CN1065445C (en) 2001-05-09

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Application Number Title Priority Date Filing Date
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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105758759B (en) * 2016-03-25 2018-04-13 南京工业大学 Laboratory three-phase foam extinguishing agent foaming effect detection equipment and detection method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1038408A (en) * 1988-06-16 1990-01-03 商业部设计院 Fixed, semi-fixed type medium expansion foam fire extinguisher
CN2073311U (en) * 1989-12-30 1991-03-20 王虎儒 Waterpower air foam extinguisher
CN1060222A (en) * 1991-09-20 1992-04-15 王佩仁 High-foaming fire-extinquishing method and device systems
CN2323812Y (en) * 1996-12-30 1999-06-16 浙江永安消防有限公司 Portable efficient high times foam generator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1038408A (en) * 1988-06-16 1990-01-03 商业部设计院 Fixed, semi-fixed type medium expansion foam fire extinguisher
CN2073311U (en) * 1989-12-30 1991-03-20 王虎儒 Waterpower air foam extinguisher
CN1060222A (en) * 1991-09-20 1992-04-15 王佩仁 High-foaming fire-extinquishing method and device systems
CN2323812Y (en) * 1996-12-30 1999-06-16 浙江永安消防有限公司 Portable efficient high times foam generator

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