A safe and efficient injector special for waste gas incineration

Abstract

The utility model discloses a kind of special safe and efficient injectors for waste gas incineration, it is related to injector technical field, its technical scheme is: including ultrasonic atomization injector, nozzle is fixed with ultrasonic atomization injector side, electrode sheet and piezoelectric ceramic are arranged in ultrasonic atomization injector, nozzle is equipped with ultrasonic atomization injector end part, the utility model has beneficial effect: liquid is atomized into extremely small droplet by ultrasonic atomization injector, and distribute uniformly, while venturi injector is further enhanced atomization effect with spiral thread design cooperation, make waste gas and atomization medium fully mix, effectively solved the problem of uneven atomization when high concentration organic waste gas incineration, ensure that waste gas can be more fully combusted in incinerator, reduce the generation of not completely combusted organic matter, reduce the risk that condensation coking is attached in nozzle inner wall or injection port, guarantee the uniformity of airflow distribution, to improve waste gas incineration efficiency and effect.

Description

Technical Field

[0001] This utility model relates to the field of ejector technology, specifically to a safe and efficient ejector for waste gas incineration. Background Technology

[0002] In waste gas treatment engineering, the injector is an indispensable part. It is usually used in conjunction with equipment such as waste gas incinerator to introduce waste gas into the incinerator for high-temperature incineration, or to play a role in combustion assistance and mixing during the incineration process, so as to improve the incineration efficiency and effect.

[0003] When high-concentration organic waste gas is incinerated, uneven atomization or excessively low local temperatures may cause unburned organic matter to condense and coke, adhering to the inner wall of the nozzle or the injection port, affecting the airflow distribution. When the water content in the waste gas is too high, liquid water droplets may vaporize and expand inside the nozzle, disrupting the injection stability. Utility Model Content

[0004] To address these issues, this invention provides a safe and efficient injector specifically designed for waste gas incineration. This addresses the problems that, during the incineration of high-concentration organic waste gas, uneven atomization or excessively low local temperatures can cause incompletely burned organic matter to condense and coke, adhering to the inner wall of the nozzle or the injection port, thus affecting airflow distribution. Additionally, when the waste gas contains excessively high levels of water, liquid water droplets may vaporize and expand within the nozzle, disrupting injection stability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a safe and efficient injector for waste gas incineration, comprising an ultrasonic atomizing injector, a nozzle fixedly provided on one side of the ultrasonic atomizing injector, an electrode plate and piezoelectric ceramic disposed inside the ultrasonic atomizing injector, a nozzle provided at the end of the ultrasonic atomizing injector, and a Venturi injector connected to the tail of the ultrasonic atomizing injector by a thread, and an inlet provided on one side of the Venturi injector, with a spiral pattern provided on the inner side of the inlet.

[0006] Preferably, a filter screen is installed on one side of the Venturi injector.

[0007] Preferably, the nozzle is provided with multiple vent holes.

[0008] Preferably, the inner wall of the ultrasonic atomizing jet is designed to be streamlined.

[0009] Preferably, the nozzle is made of ceramic material.

[0010] Preferably, the inner wall of the ultrasonic atomizing jet and the surface of the nozzle are coated with a fluorocarbon coating.

[0011] The present invention has the following advantages:

[0012] 1. The ultrasonic atomizing jet atomizes the liquid into extremely fine droplets with uniform distribution. At the same time, the Venturi jet with spiral design further enhances the atomization effect, allowing the exhaust gas to be fully mixed with the atomizing medium. This effectively solves the problem of uneven atomization when high-concentration organic waste gas is incinerated, ensuring that the exhaust gas can be burned more completely in the incinerator, reducing the generation of incompletely burned organic matter, reducing the risk of condensation and coking adhering to the inner wall of the nozzle or the injection port, ensuring the uniformity of airflow distribution, and thus improving the efficiency and effect of exhaust gas incineration.

[0013] 2. The Venturi injector is equipped with a filter screen to pre-filter the exhaust gas, removing dust, impurities, and particulate matter to prevent them from entering the injector and causing blockage. Multiple vents are set around the nozzle to introduce high-pressure gas to form a protective airflow, preventing dust and particles in the exhaust gas from approaching the nozzle and reducing the chance of blockage. At the same time, the nozzle is cooled to prevent substances in the exhaust gas from coking on the nozzle surface. The inner wall of the ultrasonic atomizing injector is designed with a streamlined shape to reduce the degree of airflow turbulence and prevent the deposition of particulate matter in the exhaust gas.

[0014] 3. The nozzle is made of ceramic material, which has extremely high hardness and high temperature resistance, and is not easily corroded by acidic substances in the exhaust gas. The inner wall of the ultrasonic atomizing sprayer and the surface of the nozzle are coated with a fluorocarbon coating, which has extremely low surface tension and good wear resistance, preventing the adhesion of sticky substances and particles in the exhaust gas, reducing the possibility of clogging, reducing the airflow resistance in the spray gun, improving the atomization effect and the working efficiency of the spray gun, and effectively solving the problem of liquid water droplets vaporizing and expanding in the nozzle when the water content in the exhaust gas is too high, thus destroying the spray stability, ensuring that the sprayer can operate safely and efficiently under various complex working conditions. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0017] Figure 1 A schematic diagram of the overall structure of this utility model.

[0018] In the diagram: 1. Ultrasonic atomizing jet; 2. Nozzle; 3. Vent hole; 4. Electrode plate; 5. Piezoelectric ceramic; 6. Venturi jet; 7. Filter screen; 8. Inlet; 9. Spiral pattern. Detailed Implementation

[0019] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] See attached document Figure 1 This utility model provides a safe and efficient injector for waste gas incineration, including an ultrasonic atomizing injector 1. A nozzle 2 is fixedly provided on one side of the ultrasonic atomizing injector 1. An electrode plate 4 and a piezoelectric ceramic 5 are provided inside the ultrasonic atomizing injector 1. The nozzle 2 is provided at the end of the ultrasonic atomizing injector 1. A Venturi injector 6 is connected to the tail of the ultrasonic atomizing injector 1 by a thread. An inlet 8 is provided on one side of the Venturi injector 6. A spiral pattern 9 is provided on the inner side of the inlet 8.

[0021] In this embodiment, the nozzle 2 on one side of the ultrasonic atomizing jet 1 is based on the cavitation effect and high-energy vibration of ultrasound. By converting mechanical energy into the surface energy of the liquid, the liquid is atomized into tiny droplets. The ultrasonic atomizing jet 1 can atomize the liquid into very fine droplets with more uniform distribution, effectively improving atomization efficiency. Before the waste liquid enters the ultrasonic atomizing jet 1, the waste liquid will first pass through the Venturi jet 6 to disperse the waste liquid into large droplets. A spiral pattern 9 is added at the nozzle 8 of the Venturi jet 6 to increase the turbulence of the fluid and further improve the atomization efficiency. The large droplets are then dispersed into small droplets by the ultrasonic vibration generated by the electrically energized piezoelectric ceramic 5.

[0022] In order to achieve the purpose of filtration, the device adopts the following technical solution: a filter screen 7 is installed on one side of the Venturi injector 6. The filter screen 7 pre-filters the exhaust gas to remove dust, impurities, particulate matter, etc., and can effectively intercept larger particles to prevent them from entering the injector and causing blockage.

[0023] In order to achieve the purpose of auxiliary ventilation, the device adopts the following technical solution: multiple ventilation holes 3 are provided around the nozzle 2. The auxiliary ventilation holes 3 provided at the nozzle 2 allow high-pressure gas to be introduced. These high-pressure gases can form a protective airflow when the spray gun is working, preventing dust, particles and other particles in the exhaust gas from approaching the nozzle 2, thereby reducing the chance of blockage. At the same time, the auxiliary ventilation holes 3 can also cool the nozzle 2, preventing substances in the exhaust gas from coking on the surface of the nozzle 2 due to high temperature.

[0024] In order to achieve the smooth passage of exhaust gas and atomizing medium, the device adopts the following technical solution: the inner wall of the ultrasonic atomizing jet 1 is designed to be streamlined to avoid right angles or sharp corners, which can reduce the degree of turbulence of airflow in the nozzle and prevent particulate matter in the exhaust gas from depositing in these parts.

[0025] In order to achieve the purpose of high temperature resistance and corrosion resistance, the device adopts the following technical solution: the nozzle 2 is made of ceramic material, which has extremely high hardness and high temperature resistance, and can maintain stable structure and performance in high temperature environment, and is not easily corroded by acidic substances in exhaust gas.

[0026] To achieve wear resistance, the device employs the following technical solution: the inner wall of the ultrasonic atomizing sprayer 1 and the surface of the nozzle 2 are coated with a fluorocarbon coating. The coating has extremely low surface tension and good wear resistance, which can prevent sticky substances and particles in the exhaust gas from adhering to the surface of the spray gun, thereby reducing the possibility of clogging. At the same time, the coating can also reduce the airflow resistance in the spray gun, improve the atomization effect and the working efficiency of the spray gun.

[0027] The usage process of this utility model is as follows: When using this utility model, the nozzle 2 on one side of the ultrasonic atomizing jet 1, based on the cavitation effect and high-energy vibration of ultrasound, converts mechanical energy into the surface energy of the liquid, causing the liquid to atomize into tiny droplets. The ultrasonic atomizing jet 1 can atomize the liquid into very fine droplets, and the distribution is more uniform, effectively improving the atomization efficiency. Before the waste liquid enters the ultrasonic atomizing jet 1, the waste liquid will first pass through the Venturi jet 6 to disperse the waste liquid into large droplets. Among them, a spiral pattern 9 is added at the nozzle 8 of the Venturi jet 6 to increase the turbulence of the fluid and further improve the atomization efficiency. The large droplets are then dispersed into small droplets by the ultrasonic vibration generated by the electrically energized piezoelectric ceramic 5.

[0028] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A safe and efficient injector for waste gas incineration, comprising an ultrasonic atomizing injector (1), characterized in that: The ultrasonic atomizing jet (1) has a nozzle (2) fixedly installed on one side. The ultrasonic atomizing jet (1) has an electrode plate (4) and a piezoelectric ceramic (5) inside. The ultrasonic atomizing jet (1) has a nozzle (2) at the end. The ultrasonic atomizing jet (1) has a Venturi jet (6) connected to the tail end by a thread. The Venturi jet (6) has an inlet (8) on one side. The inlet (8) has a spiral pattern (9) inside.

2. The safe and efficient injector for waste gas incineration according to claim 1, characterized in that: A filter screen (7) is installed on one side of the Venturi injector (6).

3. The safe and efficient injector for waste gas incineration according to claim 1, characterized in that: The nozzle (2) is surrounded by multiple vent holes (3).

4. The safe and efficient injector for waste gas incineration according to claim 1, characterized in that: The inner wall of the ultrasonic atomizing jet (1) is designed to be streamlined.

5. The safe and efficient injector for waste gas incineration according to claim 1, characterized in that: The nozzle (2) is made of ceramic material.

6. The safe and efficient injector for waste gas incineration according to claim 1, characterized in that: The inner wall of the ultrasonic atomizing jet (1) and the surface of the nozzle (2) are coated with a fluorocarbon coating.

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