CN104549855B - Sprayer medicine case jet stirrer and spraying machine - Google Patents

Abstract

The invention discloses a jet agitator for a medicine box of a sprayer, installed in the medicine box, comprising a main jet pipe and several auxiliary jet water suction pipes distributed around the main jet pipe; In the box, the bottom inlet is connected with the external water pump pipeline of the medicine box, the upper outlet is kept at a certain distance from the top surface of the inner chamber of the medicine box, and the main jet is arranged in the flow channel of the main jet pipe; the outlet of the auxiliary jet suction pipe is connected with the The throat of the main jet is connected, and the suction port of the auxiliary jet suction pipe is located at the lower part of the medicine box cavity, keeping a certain distance from the bottom surface of the inner chamber of the medicine box; an auxiliary jet is also arranged in the flow channel of the auxiliary jet suction pipe. The invention can make the liquid medicine flow through the main ejector at high pressure and high speed through the liquid pump, and generate negative pressure in the throat of the main ejector. The jet tube enables the three-dimensional circulation of the medicine liquid in the medicine box, and the mixing effect is good. It is used during the spraying process to effectively avoid precipitation.

Description

Sprayer Medicine Box Jet Mixer and Sprayer

technical field

The invention relates to the field of agricultural and forestry machinery, in particular to a jet agitator for a medicine box of a spray sprayer and a sprayer using the agitator.

Background technique

Most of the chemical spraying equipment used in agriculture and forestry is to inject the chemical into the medicine box after the chemical is pre-mixed. If it is necessary to complete the mixing of medicines in the medicine box, most of them use rotary stirring equipment or manual stirring, which is difficult to ensure the mixing effect and is easy to deposit.

Contents of the invention

Technical purpose of the present invention is to provide a kind of novel sprayer medicine box jet agitator and sprayer that are different from prior art, and technical scheme of the present invention is:

A jet agitator for a medicine box of a sprayer, which is installed in the medicine box, is characterized in that it includes a main jet pipe and several auxiliary jet water suction pipes distributed around the main jet pipe;

The main jet pipe is vertically arranged in the medicine box, the bottom inlet is connected with the liquid pump pipeline outside the medicine box, the upper outlet is kept at a certain distance from the top surface of the inner cavity of the medicine box, and the flow channel of the main jet pipe is provided with a main jet device;

The outlet of the auxiliary jet water suction pipe is connected with the throat of the main ejector, and the suction port of the auxiliary jet water suction pipe is located at the lower part of the medicine box cavity, keeping a certain distance from the bottom surface of the medicine box cavity;

A secondary jet is also arranged in the flow channel of the secondary jet suction pipe.

On the basis of the above technical content, further improvements include:

The cross-sectional area A2 of the throat of the main ejector and the auxiliary ejector is preferably set to be 1.5-2 times the cross-sectional area A1 at the outlet of the ejector nozzle.

More than one branch suction pipe is provided on the peripheral side of the secondary jet suction pipe, and the outlet of the branch suction pipe communicates with the throat of the secondary jet.

The suction inlet of the branch water suction pipe is located at different levels from the suction inlet of the auxiliary jet drinking water pipe.

The suction port of the branch water suction pipe and the suction port of the auxiliary jet water suction pipe face in different directions.

A baffle is provided above the outlet of the main jet tube, especially when the opening of the medicine box is located above the main jet tube.

The vertical height from the bottom surface to the top surface of the inner cavity of the medicine box is H, the suction port of the branch suction pipe is higher than the suction port of the auxiliary jet pipe, the height difference between the suction port of the auxiliary jet water pipe and the branch suction pipe is H1, and the distance from the baffle to the bottom surface of the medicine box is H1. The vertical height is H2, H1 is 1/4H2, and H2 is 1/2H-2/3H.

According to the direction of water flow, the jet (including main jet and auxiliary jet) is provided with a conical nozzle, a throat and an inverted conical diffuser in sequence, and the outlet of the conical nozzle is connected to the throat through a straight pipe section .

A sprayer, provided with a medicine box and a liquid spray nozzle connected to the medicine box. A branch pipeline to the medicine box, the branch pipeline is provided with a liquid pump for controlling backflow, and the inlet of the main jet tube is connected to the branch pipeline.

Beneficial effect:

The agitator of the present invention can use the liquid pump to make the medicinal liquid flow through the main ejector at high pressure and high speed, so that the throat part of the main ejector can generate negative pressure, and the medicinal liquid outside the agitator can absorb water through the auxiliary jet under the combined action of air pressure and water pressure. Pipes, branch suction pipes, etc. are sucked into the main jet pipe, so that the liquid medicine produces a three-dimensional circulation in the medicine box, which effectively ensures the mixing effect, and can be used during the spraying process to avoid the deposition of the liquid medicine during the spraying process.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the schematic diagram of the enlarged structure of Fig. 1 jet tube part;

Fig. 3 is a schematic diagram of the three-dimensional structure of the present invention.

detailed description

In order to further clarify the structural features and functional principles of the present invention, the present invention will be further introduced below in conjunction with the accompanying drawings and specific embodiments.

A sprayer is provided with components such as a medicine box, a medicine liquid nozzle, and the like, and a jet agitator is arranged in the medicine box. The spray head of the liquid medicine is connected to the medicine tank through a pipeline, and a branch pipeline connecting the spray head and the medicine box is also provided with a backflow to the medicine box. Part of the liquid medicine is sprayed out through the nozzle, and part of it is returned to the medicine box as the water inlet of the jet mixer, and the return flow can be controlled at about 5% of the volume of the medicine box.

As shown in Figures 1 to 3, the top of the medicine box is provided with an opening, and the jet mixer includes a jet stirring pipeline system 1 and a baffle 2, and the baffle 2 is located below the opening of the medicine box.

The jet stirring piping system 1 includes a main jet pipe 1-1 and four auxiliary jet suction pipes 1-2 symmetrically distributed around the main jet pipe.

The main jet pipe 1-1 is vertically arranged in the middle of the medicine box, the bottom inlet is connected to the branch pipeline returning to the medicine box, the upper outlet is located below the baffle plate 2, and the flow channel of the main jet pipe 1-1 is A main ejector is provided, and an auxiliary ejector is also arranged in the flow path of the auxiliary jet suction pipe 1-2. According to the water flow direction, the jet 3 (including the main jet and the sub jet) is provided with a conical nozzle 3-1, a throat 3-3 and an inverted conical diffuser 3-4 in sequence, and the conical nozzle The outlet of 3-1 is connected with the throat 3-3 through a straight pipe section 3-2, and the cross-sectional area A2 of the throat 3-3 is 1.5-2 times of the cross-sectional area at the exit A1 of the ejector nozzle. Alternatively, the ejector 3 may also use an existing ejector.

The outlet of the auxiliary jet water suction pipe 1-2 is connected with the throat of the main ejector 1-1, and the suction port of the auxiliary jet water suction pipe is located at the bottom of the medicine box cavity, keeping a certain distance from the bottom surface of the medicine box inner chamber, the lowest point At least above 50mm.

Four branch water suction pipes 1-3 are symmetrically arranged on the peripheral side of each auxiliary jet water suction pipe 1-2, and the outlets of the branch water suction pipes 1-3 communicate with the throat of the auxiliary jet.

In order to fully flow and mix the medicinal liquid in the medicine box and avoid dead ends, the suction port of the branch suction pipe 1-3 and the suction port of the auxiliary jet suction pipe 1-2 are located at different levels and face different directions. As shown in Figure 1, the branch suction pipe 1-3 is a bent pipe roughly in the shape of an "S", with its suction opening facing the side of the inner cavity of the medicine box, and higher than the water absorption capacity of the auxiliary jet suction pipe 1-2. mouth height, the water suction port of the auxiliary jet water suction pipe 1-2 is towards the direction of the bottom surface of the inner cavity of the medicine box.

Assuming that the vertical height from the bottom surface to the top surface of the inner cavity of the medicine box is H, the height difference between the auxiliary jet suction pipe 1-2 and the branch water suction pipe 1-3 is H1, and the vertical height from the baffle plate 2 to the bottom surface of the medicine box is H2, then H1 is preferably set to 1/4 of H2, and H2 is 1/2H-2/3H.

The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments. What are described in the above-mentioned embodiments and the description only illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have Various changes and improvements. The protection scope of the present invention is defined by the appended claims, description and their equivalents.

Claims (10)

1. a kind of sprayer medicine case jet stirrer, in medicine-chest, it is characterised in that including a power stream pipe and be distributed in The some secondary jet suction hose of power stream pipe the week side of boss；

The power stream pipe is vertically provided in medicine-chest, and its bottom inlet is connected with medicine-chest outer liquid pump conduit, upper outlet with Medicine-chest inner chamber top surface keeps certain distance, and power stream device is provided with the runner of power stream pipe；

The outlet of the secondary jet suction hose is connected with the trunnion of power stream device, and the suction inlet of secondary jet suction hose is located at medicine-chest chamber The bottom of body, keeps certain distance with medicine-chest inner chamber bottom surface；

Secondary ejector is provided with the runner of the secondary jet suction hose.

2. a kind of sprayer medicine case jet stirrer according to claim 1, it is characterised in that the power stream device and pair 1.5-2 times for ejector nozzle exit sectional area A1 of the sectional area A2 of ejector trunnion.

3. a kind of sprayer medicine case jet stirrer according to claim 1, it is characterised in that the secondary jet suction hose The week side of boss be provided with branch's suction hose of more than, the outlet of branch's suction hose is connected with the trunnion of pair ejector.

4. a kind of sprayer medicine case jet stirrer according to claim 3, it is characterised in that branch's suction hose Suction inlet is located at different level heights from secondary jet suction hose suction inlet.

5. a kind of sprayer medicine case jet stirrer according to claim 3, it is characterised in that branch's suction hose The suction inlet of suction inlet and secondary jet suction hose is towards different directions.

6. a kind of sprayer medicine case jet stirrer according to claim 1, it is characterised in that the power stream pipe outlet Top be provided with baffle plate.

7. a kind of sprayer medicine case jet stirrer according to claim 6, it is characterised in that medicine-chest inner chamber bottom surface is to top The vertical height in face is H, and the suction inlet of branch's suction hose is higher than secondary jet pipe suction inlet, secondary jet suction hose, branch's suction hose Water sucking mouth difference in height be H1, the vertical height of baffle plate to medicine-chest bottom surface is H2, and H1 is 1/4H2, and H2 is 1/2H-2/3H.

8. a kind of sprayer medicine case jet stirrer according to any one of claim 1-7, it is characterised in that according to water Stream direction, the power stream device and secondary ejector are sequentially provided with conical nozzle, trunnion and back taper diffuser pipe, the conical nozzle Outlet be connected with trunnion by type pipeline section always.

9. a kind of spraying machine, is provided with medicine-chest, the liquid medicine sprayer of connection medicine-chest, it is characterised in that be provided with such as right in the medicine-chest The agitator any one of 1-7 is required, the pipeline of the liquid medicine sprayer connection medicine-chest is provided with the branch for being back to medicine-chest Pipeline, the branch line are provided with the liquid pump of control backflow, and the import of the power stream pipe is connected with the branch line.

10. a kind of spraying machine, is provided with medicine-chest, the liquid medicine sprayer of connection medicine-chest, it is characterised in that be provided with such as right in the medicine-chest Require the agitator described in 8, the pipeline of liquid medicine sprayer connection medicine-chest is provided with the branch line for being back to medicine-chest, described point Bye-pass is provided with the liquid pump of control backflow, and the import of the power stream pipe is connected with the branch line.