CN101053324A

CN101053324A - Backpack type mechanical mist and powder spraying machine

Info

Publication number: CN101053324A
Application number: CN 200610039382
Authority: CN
Inventors: 崔业民; 周宏平; 许林云; 崔华
Original assignee: 崔业民
Priority date: 2006-04-10
Filing date: 2006-04-10
Publication date: 2007-10-17

Abstract

The present invention discloses a backpack type mechanical mist and powder spraying machine comprising a frame, a fan, apetrol engine, a fuel tank, a pesticide case, manoeuvring element and a vertical spray-tube. The different point is that the air outlet in air-out channel of the fan is upward oblique, wherein the angle between the central axis of and horizontal s is theta, theta > 30 DEG, that is the angle between the tangent of the air outlet in air-out channel of the fan and horizontal is theta, theta > 30 DEG, the angle between the central axis of the cylindrical surface of air-out channel of the fan and the central axis of the cylindrical surface of the vertical spray-tube is beta, beta is 90 DEG minus theta, the turn angle between air-out channel of the fan and the vertical spray-tube is beta. The turn angle is smaller, the inner wall curve of pipeline is more gentle, so airflow in the pipeline has smaller resistance, smaller energy loss. And airflow energy loss smaller, the powder adhered airflow sprayed by the fan through the vertical spray-tube is sprayed further, enlarging the coverage of the powder spray, improving the spraying efficiency.

Description

Backpack type mechanical mist and powder spraying machine

Technical field

What the present invention relates to is a kind of spraying equipment that is used for destruction of pest.Relate to a kind of spraying equipment that is used for fields such as forestry, agricultural concretely.

Technical background

At present, in agricultural, but the Backpack type mechanical mist and powder spraying machine in the forestry machinery equalization is spraying liquid but also can spray medicinal powder not only, be as 2181182Y number disclosed version of Chinese patent specification CN mostly, it comprises frame, blower fan 1, gasoline engine, fuel tank, (see figure 3)s such as medicine-chest and straight tube 2, but, the air outlet of the air-out passage of the blower fan of above-mentioned Backpack type mechanical mist and powder spraying machine is towards declivity face over the ground, the air-out channel center axis of its blower fan and the angle of horizontal plane s are γ, γ＞30 °, can not directly vertically upward spray, therefore, between its blower fan air-out passage and above-mentioned straight tube, bend pipe is housed, when spraying soup, this bend pipe make the air-flow that gushes out from the air-out passway of blower fan by towards declivity over the ground the direction of face change vertically upward direction into, this air-flow angle of will turning vertically upward from the air-out passage of blower fan to straight tube is the turning of β, turning angle β is the big corner of 90 °+γ, when turning, collides or the friction increasing in air-flow with tube wall, cause the exit velocity of air-flow greatly to slow down from the bend pipe inlet velocity to bend pipe, angle of turn is big more, the flowed energy loss is big more, it is many more to slow down, directly influence height and the scope of spraying covering that Backpack type mechanical mist and powder spraying machine sprays the range of soup or medicinal powder, reduce spray drug effect rate.

Summary of the invention

For overcoming the technical problem that existing knapsack sprayer-duster exists, the present invention provides a kind of Backpack type mechanical mist and powder spraying machine, and its jet-stream wind when spray duster is little at the pipeline internal resistance, energy loss is few, jet length is far away, can enlarge the scope that covers of spraying, and then improves ejection efficiency.

The technical scheme of technical solution problem of the present invention is: above-mentioned Backpack type mechanical mist and powder spraying machine, it comprises frame, blower fan, gasoline engine, fuel tank, medicine-chest, control member and straight tube, difference is, the air-out passage air outlet of above-mentioned blower fan is tiltedly right up, the angle of its face of cylinder central axis and horizontal plane s is θ, θ＞30 °, the angle of the face of cylinder central axis of the air-out passage of blower fan and the face of cylinder central axis of above-mentioned straight tube is β, β is 90 °-θ.

It is as follows that Backpack type mechanical mist and powder spraying machine of the present invention has advantage compared with prior art: above-mentioned Backpack type mechanical mist and powder spraying machine is because the air outlet of the air outlet passage of housing is tiltedly right up, the angle of its central axis and horizontal plane s is θ, angle theta＞30 °, the angle of the face of cylinder central axis of its face of cylinder central axis and straight tube is β, and β is 90 °-θ.Be the turning angle β between air outlet passage and the straight tube, angle of turn is more little, the inner-walls of duct curve is mild more, the resistance that air-flow is subjected in pipeline is more little, the flowed energy loss is few more, the air-flow of blower fan ejection is far away more with the distance that its appended medicinal powder sprays through straight tube, has enlarged the coverage that medicinal powder sprays, and improves ejection efficiency.

Description of drawings

Fig. 1 is the structural representation of Backpack type mechanical mist and powder spraying machine of the present invention;

Fig. 2 is the local enlarged diagram that the air-out passage of blower fan 1 among Fig. 1 is connected with straight tube 2;

Fig. 3 is the structural representation of Backpack type mechanical mist and powder spraying machine of the prior art;

Fig. 4 is the local enlarged diagram that the air-out passage of blower fan among Fig. 3 is connected with straight tube.

Embodiment

Below in conjunction with drawings and Examples Backpack type mechanical mist and powder spraying machine of the present invention is described further.

Shown in Fig. 1-2, above-mentioned Backpack type mechanical mist and powder spraying machine, it comprises frame, blower fan 1, gasoline engine, fuel tank, medicine-chest, control member and straight tube 2, the air outlet of the air-out passage of blower fan 1 is tiltedly right up, the angle of its central axis and horizontal plane s is θ, θ＞30 °, be that the air outlet tangent line of air-out passage of blower fan 1 and the angle of ground level are θ, θ＞30 °, the angle of the face of cylinder central axis of the air-out passage of blower fan 1 and the face of cylinder central axis of straight tube 2 is β, and β is 90 °-θ.

The course of injection of above-mentioned Backpack type mechanical mist and powder spraying machine: the gasoline engine that starts this motor-driven sprayer-duster, producing high velocity air in blower fan 1 flows forward along its upper inner wall, the sub-fraction air-flow enters medicine-chest, increased the medicine-chest chamber pressure, the flow through air-out passage of blower fan 1 of most of high velocity air, the medicinal powder in the medicine-chest also constantly is transported to the air-out passage air outlet of blower fan 1, with its tangential direction ejection, blow down at high velocity air, be ejected into the object of eminence through straight tube 2.Because the air-out passage of blower fan 1 and the turning angle β of above-mentioned straight tube 2 are milder, can be with the place that chemical spray is farther to distance, scope is bigger.

Claims

1, a kind of Backpack type mechanical mist and powder spraying machine, it comprises frame, blower fan (1), gasoline engine, fuel tank, medicine-chest, control member and straight tube (2), it is characterized in that: the air outlet of the air-out passage of above-mentioned blower fan (1) is tiltedly right up, the angle of its central axis and horizontal plane s is θ, θ＞30 °.