CN106417236A - Smoke generating device based on afterheat and rest pressure utilization of tail gas of internal combustion engine - Google Patents

Abstract

The invention provides a smoke generating device based on afterheat and rest pressure utilization of tail gas of an internal combustion engine; the smoke generating device is new in structural design, high in energy utilization rate, high in working efficiency, and strong in selectivity. The smoke generating device includes an internal combustion engine provided with a tail gas exhaust opening and an exhaust pipe connected with the tail gas exhaust opening; the smoke generating device is characterized by further comprising a medicine box for holding medicine fluid and two medicine tubes interconnected with the medicine box, wherein an outlet end of one medicine pipe is arranged in the middle part of the exhaust pipe, and the outlet end of the other medicine pipe is arranged at the tail gas exhaust opening.

Description

Smoke generating device based on exhaust heat and pressure utilization of internal combustion engine exhaust

technical field

The invention relates to a smoke machine, in particular to a smoke generating device based on utilization of waste heat and pressure of exhaust gas of an internal combustion engine.

Background technique

China is a large agricultural country. Due to different geographical locations, different types of crops are planted in various places. However, all crops will be harmed by diseases and insect pests during the growth process, and necessary plant protection operations must be carried out. There are many types of plant protection operations. Large-scale plant protection machinery, small-scale plant protection machinery; traditional fog machines are also called smoke sprayers and sprayers, which belong to portable agricultural machinery. The fog machine is divided into trigger type fog machine, thermal fog machine, pulse type fog machine, gas fog machine, fuel oil fog machine and so on.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies of the prior art, meet the actual needs, and provide a smoke generating device based on the use of exhaust heat and pressure of internal combustion engine tail gas with novel structure design, high energy utilization rate, high work efficiency and strong selectivity.

In order to realize the purpose of the present invention, the technical scheme adopted in the present invention is:

Design a smoke generating device based on the use of exhaust heat and residual pressure of internal combustion engine exhaust, including an internal combustion engine provided with an exhaust outlet, and an exhaust pipe connected to the exhaust outlet; it is characterized in that it also includes a medicine box for containing medicinal liquid 1. Two medicine pipes both connected with the medicine box, wherein the outlet end of one medicine pipe is arranged at the middle part of the exhaust pipe, and the outlet end of the other medicine pipe is arranged at the exhaust outlet of the exhaust gas.

Preferably, a heat collector is respectively arranged at the outlet of the exhaust gas outlet and the middle of the exhaust pipe, the outlet end of the medicine pipe is arranged opposite to the heat collector, and the medicine discharged from the medicine pipe The liquid falls on the collector.

Preferably, the heat collector is a rod. In this case, the heat collector is an iron rod or an electric heating rod.

Preferably, the heat collector is a tube. At this time, the heat collector is a metal tube, and the tube wall of the metal tube is a hollow structure, and the hollow structure is provided on the metal tube wall by several via holes on the

Preferably, a drug delivery mechanism is respectively provided on the outlet ends of the two drug tubes, and the drug delivery mechanism includes a spray head.

Preferably, an electromagnetic valve is respectively arranged on each drug tube, and a flow meter is also arranged on each drug tube.

Preferably, a temperature sensor for monitoring temperature is provided on each heat collector.

Preferably, the exhaust pipe is arranged longitudinally, and the outlet end of the exhaust pipe is arranged at the top of the exhaust pipe.

Preferably, the lower end of the exhaust pipe is also provided with an air intake pipe which is also communicated with the inner chamber of the exhaust pipe, and an axial flow for sending the outside air into the exhaust pipe is also provided inside the air intake end of the air intake pipe. fan.

Preferably, a damper is provided at the outlet end of the inlet pipe at the upper end of the axial flow fan, the damper is a one-way valve, and the damper is normally closed.

The beneficial effects of the present invention are:

This design has a novel structural design. In the application, the waste heat and pressure generated by the internal combustion engine can be comprehensively utilized, and the energy utilization rate is high. The double-drug tube of this design can improve its work efficiency. At the same time, this design can be selected Strong, and combined with the design of the axial flow fan, it can form a large area of diffuse smoke in the application, which is conducive to the smoke floating on the surface of the vegetation to achieve high efficiency and high quality in the spraying process.

Description of drawings

Fig. 1 is the main structure schematic diagram of the present invention;

In the figure: 1. Internal combustion engine; 2. Inner cavity of exhaust gas outlet; 3. Medicine tube; 4. Medicine box; 5. Solenoid valve; 6. Flow meter; 7. Exhaust pipe; 8, 16. Drug delivery mechanism ;9, 15. Heat collector; 10, 13. Temperature sensor; 11. Damper; 12. Axial flow fan; 14. Exhaust gas outlet; 17. Intake pipe.

detailed description

Below in conjunction with accompanying drawing and embodiment the present invention is further described:

Embodiment 1: a kind of smog generating device based on exhaust heat and residual pressure utilization of internal combustion engine, referring to Fig. 1, it comprises the internal combustion engine 1 that is provided with exhaust discharge 14, the exhaust pipe 7 that is connected with exhaust outlet 14; This design it also It includes a medicine box 4 for containing medicine liquid, two medicine pipes 3 connected with the medicine box 4, the two medicine pipes are connected in parallel, and the outlet end of one of the medicine pipes is arranged in the middle of the exhaust pipe, The outlet end of the other medicine tube 3 is arranged in the inner cavity 2 of the exhaust gas outlet. Further, in this design, a solenoid valve 5 is respectively arranged on each medicine tube, and a flow meter 6 is also arranged on each medicine tube 3 at the same time.

Further, this design is also provided with a heat collector 9, 15 in the inner cavity 2 of the exhaust gas outlet and the middle part of the exhaust pipe 7, and the outlet end of the drug pipe 3 is connected to the collector. Heaters 9 are arranged facing each other, and the liquid medicine discharged from the medicine tube falls on the heat collector, and a medicine delivery mechanism 8, 16 is respectively arranged on the outlet ends of the two medicine tubes, and the medicine delivery mechanism 8, 16 It includes spray head.

Further, the heat collectors 9 and 15 in this design can be rods, and at this time, the heat collectors 9 and 15 are preferably iron rods or electric heating rods. Or, the heat collectors 9, 15 can also be tubes, at this time, the heat collectors 9, 15 are metal tubes, and the tube wall of the metal tubes is a hollow structure, and the hollow structure consists of A plurality of through holes arranged on the metal pipe wall. Further, this design is also equipped with a temperature sensor for monitoring temperature on each heat collector 9, 15, and the temperature sensor used in this design and the controller for collecting temperature sensor data are existing Commonly used components in the technology, which will not be described in detail in this embodiment.

Further, the exhaust pipe 7 in this design is arranged longitudinally, and the outlet end of the exhaust pipe is arranged on the top of the exhaust pipe 7 . At this time, the lower end of the exhaust pipe 7 is also provided with an air intake pipe 17 that is also communicated with the inner cavity of the exhaust pipe 7, and an air intake pipe 17 is also provided inside the air intake end of the air intake pipe 17 for sending outside air into The axial flow fan 12 in the exhaust pipe is also provided with a damper 11 at the outlet end of the inlet pipe 17 at the upper end of the axial flow fan 12. The damper 11 is a one-way valve, and the normal state of the damper 11 is closed. state.

In application, the working principle of the present invention is; when the internal combustion engine (taking the diesel engine as an example) works normally, the medicinal solution in the medicine box 4 is sent to the medicine delivery mechanism through two independent medicine pipes, and then Into the inner cavity 2 of the exhaust outlet and in the exhaust pipe 7, during this process, the electromagnetic valve of this design can also be connected with a controller, at this time, when the internal combustion engine is working, under the control of the controller Its controller can independently or simultaneously control the medicine supply of two independent medicine tubes according to the exhaust gas temperature obtained by the temperature sensors 10 and 13 .

In the present invention, there are two drug tubes, wherein the channel of one of the drug tubes flows into the inner cavity 2 of the exhaust gas outlet, and at this time, the medicinal liquid that enters the inner cavity 2 of the exhaust gas outlet through the pressure difference drops to the heat collector 9 or Scatter on the heat collector 9 through the nozzle, and then the medicine droplets contact the heat collector 9 to absorb heat immediately and volatilize rapidly. At this time, the high-temperature and high-pressure tail gas in the tail gas converts the medicine liquid into smoke, and passes through the exhaust pipe together with the tail gas It is discharged into the air, and then forms a large area of diffuse smoke, and the smoke floats on the surface of the vegetation to complete the entire spraying process.

While performing the above actions, the liquid medicine in the other medicine pipe directly enters the exhaust pipe, at this time, the liquid medicine that enters the exhaust pipe 7 through the pressure difference drops to the heat collector 15 or is scattered to the heat collector 15 through the nozzle. Then the medicine droplets contact the heat collector 15 to absorb heat immediately and volatilize rapidly. At this time, the high-temperature and high-pressure tail gas in the tail gas converts the medicine liquid into smoke, and is discharged into the air through the exhaust pipe together with the tail gas, and then forms a large The area is diffused with smoke, and the smoke floats and falls on the surface of the vegetation to complete the entire spraying process. When the two drug tubes are used for infusion, since the two drug tubes are connected in parallel, the two drug tubes can work independently or together in application.

Furthermore, when the internal combustion engine is in the medium load and heavy load conditions, the atomization effect of the liquid medicine is good, and in order to increase the diffusion and lift of the smoke, this design is also equipped with an axial flow fan 12 and a damper 11. The damper 11 one-way opening, that is, when the axial flow fan 12 is not working, the damper 11 is in the closed state, this design can prevent the engine exhaust from flowing out from the axial flow fan 12, and when large flow and head are required, the axial flow fan 12 works, The damper 11 is opened to increase the air supply volume, and combined with the tail gas, the formed smog is discharged into the air through the exhaust pipe, and then a larger area of diffuse smog can be formed.

And the electromagnetic valve, flowmeter, temperature sensor and controller among the present invention can also form a control system in specific application, can control the temperature among them according to the temperature of temperature sensor feedback, the flow rate that flowmeter shows at this moment by controller The opening degree of one or two solenoid valves, thereby controlling the amount of smoke, and the connection relationship between the above-mentioned solenoid valves, flowmeters, temperature sensors and controllers is a conventional prior art in the art, the present embodiment It will not be described in detail here.

Finally, it can be seen that the present invention is different from the fog machine in the prior art. In application, the present invention uses the exhaust gas of multi-cylinder diesel engines, the main power source in domestic agricultural machinery, as the source of high-temperature and high-pressure gas; its basis is that, When the engine is working, the heat converted into effective work in each working cycle accounts for 30%-40% of the total heat generated after fuel combustion, the heat lost by engine cooling accounts for 20%-25% of the total heat, and the exhaust heat accounts for 40% %-45%, while the engine is in the power stroke, the fuel burns rapidly in the engine cylinder to produce a large amount of high-temperature and high-pressure gas, the temperature can reach above 1500 degrees Celsius, and the peak pressure can reach above 100 kPa. The temperature of the exhaust gas in the pipe can reach 500-700 degrees Celsius, its air pressure is also greater than 1Mpa, and its propagation speed exceeds the speed of sound. Based on this, the present invention makes full use of the heat energy and pressure energy contained in the exhaust gas of a diesel engine to achieve the purpose of energy saving and emission reduction , and then can be used to replace the energy generation device of other types of fog machines.

The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. Those skilled in the art can easily comprehend the spirit of the present invention based on the above-mentioned embodiments, and make different extensions and changes. But as long as it does not deviate from the spirit of the present invention, it is within the protection scope of the present invention.

Claims (10)

1. A smog generating device based on exhaust heat and residual pressure utilization of an internal combustion engine, comprising an internal combustion engine provided with an exhaust outlet, and an exhaust pipe connected to the exhaust outlet; it is characterized in that: it also includes a medicine for containing the liquid medicine box, and two medicine pipes both connected with the medicine box, wherein the outlet end of one medicine pipe is arranged at the middle part of the exhaust pipe, and the outlet end of the other medicine pipe is arranged at the exhaust outlet of the exhaust gas. 2. The smog generating device based on exhaust heat and residual pressure utilization of internal combustion engine as claimed in claim 1, characterized in that: a heat collector is respectively arranged at the outlet of the exhaust outlet and the middle part of the exhaust pipe, The outlet end of the medicine tube is set opposite to the heat collector, and the medicine liquid discharged through the medicine tube falls on the heat collector. 3. The smog generating device based on utilization of exhaust heat and residual pressure of internal combustion engine exhaust as claimed in claim 2, characterized in that: the heat collector is a rod, and at this time, the heat collector is an iron rod or an electric heating rod. 4. The smog generating device based on exhaust heat and residual pressure utilization of internal combustion engine exhaust as claimed in claim 2, characterized in that: the heat collector is a pipe, at this time, the heat collector is a metal pipe, and the metal The tube wall of the tube is a hollow structure, and the hollow structure is composed of several through holes arranged on the tube wall of the metal tube. 5. The smog generating device based on utilization of waste heat and pressure of exhaust gas of internal combustion engine as claimed in claim 2, characterized in that: each heat collector is respectively provided with a temperature sensor for monitoring temperature. 6. The smog generating device based on exhaust heat and residual pressure utilization of internal combustion engine as claimed in claim 1, characterized in that: a drug delivery mechanism is respectively arranged on the outlet ends of the two drug tubes, and the drug delivery mechanism includes nozzle. 7. The smog generating device based on exhaust heat and residual pressure utilization of internal combustion engine as claimed in claim 1, characterized in that: each drug pipe is respectively provided with a solenoid valve, and each drug pipe is also provided with a flow meter . 8. The smog generating device based on exhaust heat and residual pressure utilization of internal combustion engine exhaust as claimed in claim 1, characterized in that: the exhaust pipe is arranged vertically, and the outlet end of the exhaust pipe is arranged on the exhaust pipe the top of. 9. The smog generating device based on exhaust heat and residual pressure utilization of internal combustion engine as claimed in claim 8, characterized in that: the lower end of the exhaust pipe is also provided with an air intake pipe which is also communicated with the inner chamber of the exhaust pipe. The air intake end of the air intake pipe is also provided with an axial flow fan for sending outside air into the exhaust pipe. 10. The smog generating device based on exhaust heat and residual pressure utilization of internal combustion engine as claimed in claim 9, characterized in that: a damper is also arranged at the outlet end of the intake pipe at the upper end of the axial flow fan, and the damper is a single Directional valve, and the damper is normally closed.