CN2433438Y

CN2433438Y - Special ventilator with ciculation fumigation for grain storage

Info

Publication number: CN2433438Y
Application number: CN 00225141
Authority: CN
Inventors: 沈伉骧; 蒋建筠; 易恺
Original assignee: HUANAN FAN MANUFACTURE GENERAL FACTORY CHANGSHA
Current assignee: HUANAN FAN MANUFACTURE GENERAL FACTORY CHANGSHA
Priority date: 2000-07-06
Filing date: 2000-07-06
Publication date: 2001-06-06
Anticipated expiration: 2010-07-06

Abstract

The utility model relates to a special ventilator with circulation fumigation for stored grains, which is mainly composed of a casing, an impeller, a motor, an air inlet, and square and round joint which forms a square shape to a round shape. Sealing gum is coated and rubber washers are padded between flange planes and between a flange plane and a lateral plate plane. Sealing gum is also coated between a screw bolt and a bolt hole. The impeller adopts specially designed pattern, angle, shape and size. The utility model has the advantages of favorable sealing performance, favorable corrosion-resisting performance, large wind pressure, low energy consumption, small size, light weight, and superior technical performance.

Description

The special-purpose ventilator of recirculation fumigation grain storage

The utility model relates to a kind of ventilation equipment, is specifically related to a kind of special-purpose ventilator of fumigating, ventilate, lower the temperature of grain depot grain storage.

At present domestic general ventilator is not owing to carry out the effective seal processing to intake grill Flange Plane and casing Flange Plane and motor flange plane and housing side wall plane, design and installations such as the shape of blade, exit angle, circular arc are unreasonable in addition, thereby poor sealing performance, pressure do not increase, the poisonous gas leakage befouling environment, and volume is big, energy consumption is high, does not reach the stifling specific (special) requirements of grain depot grain storage.

The purpose of the utility model aims to provide a kind of good seal performance, no leakage pollution, protection environment, blast is big, energy consumption is low, volume is little, satisfy the special-purpose ventilator of recirculation fumigation grain storage that grain depot is fumigated specific (special) requirements.

Technical solution of the present utility model is: the special-purpose ventilator of this recirculation fumigation grain storage is mainly by casing, impeller, motor, intake grill, form to the circumference joint of circle by the side, impeller is installed in the casing, the casing both sides are installed respectively and are connected motor and intake grill, the connection of casing downside is by the circumference joint of side to circle, impeller connects transmission by motor, scribble sealer between intake grill Flange Plane and casing Flange Plane and motor flange plane and the housing side wall plane and pad is put rubber washer, also scribble sealer between the bolt screw, blade is antecurvature pattern or radially exports pattern, exit angle is 90 °-118 °, circular arc is R30mm-120mm, impeller outer diameter is Φ 230mm-270mm, the big footpath of impeller is Φ 260mm-290mm, the protecgulum pattern is cambered surface or taper plane or two circular arc camber, the aperture is Φ 14mm+0.018 or Φ 19mm+0.021, impeller length overall 72mm-82mm.

Component such as casing of the present utility model also can carry out plastic-blasting to be handled.

Therefore; the utility model is compared with prior art; have good seal performance, no leakage pollution, protection environment, blast is big, energy consumption is low, volume is little, satisfy the remarkable advantage and the effect of the stifling specific (special) requirements of grain depot; simultaneously the utility model compact structure, reasonable in design, in light weight, efficient is high; technical performance is good, stifling for the grain in grain storage storehouse (storehouse), ventilate, cooling provides a kind of good equipment.

Fig. 1 is the utility model plan view

Fig. 2 is the utility model left view

Fig. 3 is the impeller longitudinal sectional view

Below in conjunction with accompanying drawing the utility model is further described in detail:

Referring to Fig. 1, Fig. 2, the utility model is mainly by casing 1, impeller 2, motor 3, intake grill 4, be made up of to the circumference joint of justifying 5 side, impeller 2 is installed in the casing 1, casing 1 both sides are installed respectively and are connected motor 3 and intake grill 4, casing 1 downside connection is by the circumference joint 5 of side to circle, and impeller 2 connects transmission by motor 3.Adopt sealer to be applied to intake grill Flange Plane and casing Flange Plane and motor flange plane and housing side wall plane, and be applied to the attachment bolt screw place of all bolts and screw and motor housing and end cap in advance, the packing ring pad that adopts rubber to make simultaneously places between intake grill flange and the casing flange and between electric motor end cap flange and the casing side, thereby reach seal action, and under 0.2MPa pressure, do not have leakage, so harmful (poison) gas of being carried can not be let out from blower fan through frothing test.

Referring to Fig. 3, impeller material adopts aluminium matter and steel to make, and each plane No. of impeller takes different patterns to reach blower fan and vary in size and pressure is close, makes the little and pressure height of blower fan boundary dimension: as the NO2.3A type, blade is antecurvature pattern, exit angle is 118 °, and circular arc is 30mm, and impeller outer diameter is Φ 230mm, big footpath is Φ 260mm, the protecgulum pattern is the cambered surface of R74mm, and the aperture is Φ 14mm+0.018, and the impeller length overall is 72mm; The NO2.5A type, blade is for radially exporting pattern, and exit angle is 9O °, and circular arc is R120mm, blade chord length 68mm, impeller outer diameter Φ 250mm, big footpath is Φ 270mm, and the protecgulum pattern is the taper plane, and the aperture is Φ 14mm+0.018, and the impeller length overall is 82mm; NO2.7A type, blade are antecurvature pattern, and exit angle is 102 °, and circular arc is R80mm, and impeller outer diameter is Φ 270mm, and big footpath is Φ 290mm, and the protecgulum pattern is the two circular arc cambers of R153mm and R35mm, and the aperture is Φ 19mm+0.021, and the impeller length overall is 81mm.

Component such as casing of the present utility model adopt plastic-blasting, strengthened corrosion resistance, air outlet joint adopts the circumference joint to circle by the side, and the base dimension of circular portion equals the base dimension of intake grill, make the import and export size of each plane No. keep unified size simultaneously, made things convenient for installation.

Claims

1, the special-purpose ventilator of a kind of recirculation fumigation grain storage, it is characterized in that by casing, impeller, motor, intake grill, form to the circumference joint of circle by the side, impeller is installed in the casing, the casing both sides are installed respectively and are connected motor and intake grill, the connection of casing downside is by the circumference joint of side to circle, impeller connects transmission by motor, scribble sealer between intake grill Flange Plane and casing Flange Plane and motor flange plane and the housing side wall plane and pad is put rubber washer, also scribble sealer between the bolt screw, blade is antecurvature pattern or radially exports pattern, exit angle is 90 °-118 °, circular arc is R30mm-120mm, impeller outer diameter is Φ 230mm-270mm, the big footpath of impeller is Φ 260mm-290mm, the protecgulum pattern is cambered surface or taper plane or two circular arc camber, and the aperture is Φ 14mm+0.018 or Φ 19mm+0.021, impeller length overall 72mm-82mm.