Self-cleaning dry fog nozzle

Abstract

The utility model relates to a spray nozzle technical field, concretely discloses a kind of self-cleaning dry fog spray nozzles, comprising: five-way main body connecting pipe;Pagoda quick connector, the pagoda quick connector is inserted in the inside of five-way main body connecting pipe;The utility model is equipped with pagoda quick connector, gas circuit connecting seat, water circuit connecting seat and water-gas mixer, so that automatic anti-clogging self-cleaning mechanism uses cylinder to drive thimble reciprocating operation, when cleaning action is executed, waterway diameter amplification, can effectively clean out rust particle, sticky mud, incrustation, crystalline particle etc., completely solve traditional spray nozzle easy to block problem, self-cleaning control system is connected by the equipment of its control to water, gas, electric main pipeline and self-cleaning nozzle, system design is divided into manual, automatic two modes, in touch screen parameter and state window can monitor and set the start, stop, self-cleaning interval and self-cleaning duration etc. Parameters of self-cleaning system.

Description

Technical Field

[0001] This utility model belongs to the field of spray nozzle technology, specifically relating to a self-cleaning dry fog nozzle. Background Technology

[0002] A spray nozzle is a device that can transform liquids (such as water, chemicals, oil, etc.) into fine droplets through a specific structure and spray them out evenly. It has a wide range of applications in many fields. It is usually composed of components such as a nozzle body, a nozzle orifice, a swirl vane (some have this), and a filter screen. The nozzle body is the supporting structure of the entire nozzle; the nozzle orifice is the key channel for liquid spraying, and its size and shape will affect the spray effect; the swirl vane can make the liquid rotate, which helps to form a more uniform spray.

[0003] In the industrial and environmental protection fields, spray dust suppression technology, as one of the core means of controlling dust pollution, is widely used in open operation scenarios such as ports, docks, mines, and coal yards. These locations generate a large amount of dust during the loading, unloading, storage, and transfer of bulk cargo (such as coal, ore, and sand), which not only threatens the health of workers but may also cause pollution to the surrounding environment. Therefore, it is necessary to install high-altitude spray dust suppression devices to achieve large-scale and precise dust suppression. However, such devices have long faced the problem of nozzle clogging in actual operation. Traditional spray nozzles are mostly made of metal or hard plastic, with precise internal flow channels (such as micron-level nozzles). The original design intention is to rely on a stable water flow to form a uniform atomization effect. However, in actual working conditions, the water source for dust suppression systems is generally untreated tap water or recycled water. This type of water naturally contains calcium and magnesium ions (which easily form scale), suspended silt particles, rust from the corrosion of iron pipes, and impurities such as mud and sand mixed in from the water source or pipelines. As water flows through the nozzles, impurities gradually accumulate in the nozzle orifices, swirl channels, or filters: hard scale crystals adhere to the inner walls of the flow channels, reducing the nozzle diameter; silt, sand, and other solid particles directly accumulate and block the flow path; rust further exacerbates the clogging risk in a loose or clumped form. Because spray dust suppression devices are installed at considerable heights and are often located in open but complex maintenance areas such as ports and mines, routine cleaning or replacement of clogged nozzles requires the use of aerial work platforms and professional personnel. This not only results in long maintenance times and high labor costs but may also disrupt normal production operations due to equipment downtime. Furthermore, frequent clogging reduces the overall stability of the spray system, causing fluctuations in dust suppression effectiveness and increasing environmental compliance risks. Utility Model Content

[0004] The purpose of this invention is to provide a self-cleaning dry fog nozzle to solve the problem mentioned in the background art that existing spray nozzles cannot perform self-cleaning.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A self-cleaning dry fog nozzle, comprising:

[0007] Five-way main connecting pipe;

[0008] The pagoda quick-connect fitting is inserted into the interior of the bottom bracket main connecting pipe;

[0009] Air passage connector, which is inserted into the top of the five-way main body connecting pipe;

[0010] A water connection seat is inserted at the top of the five-way main connecting pipe, and a water-air mixer is installed at the bottom of the five-way main connecting pipe.

[0011] Preferably, a telescopic cleaning needle is fixedly connected to the bottom end of the pagoda quick-connect fitting, and a nut mounting seat is fitted onto the outside of the water-air mixer.

[0012] Preferably, a connecting mixing cap is connected to the bottom end of the nut mounting base.

[0013] Preferably, the bottom ends of the air connection seat and the water connection seat are provided with threaded grooves, the air connection seat and the water connection seat are threaded to the top end of the bottom connector main body connecting pipe, and the water-air mixer is threaded to the bottom end of the bottom connector main body connecting pipe.

[0014] Preferably, the telescopic cleaning needle is inserted through the five-way main connecting pipe and the water-air mixer, and the air connection seat and the water connection seat are the same size.

[0015] Preferably, the telescopic cleaning needle is controlled by the air pressure of the quick-tightening pagoda connector, and the cleaning needle on the telescopic cleaning needle is in close cooperation with the water-air mixer.

[0016] Preferably, the extension and retraction of the inner cleaning needle of the telescopic cleaning needle is controlled by opening and closing the air supply, and the connecting mixing cap is sealed to the outside of the water-air mixer through an internally threaded connecting nut mounting seat.

[0017] Preferably, the equal orifice spacing of the water-air mixer is increased, and the water and air output increases proportionally.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This invention, through the design of a pagoda-shaped quick-connect fitting, an air connection seat, a water connection seat, and a water-air mixer, enables the automatic anti-clogging self-cleaning mechanism to use a cylinder to drive the ejector pin in reciprocating motion. During the cleaning action, the water passage diameter is enlarged, effectively removing rust, sludge, scale, and crystalline particles, thus completely solving the problem of easy clogging of traditional spray nozzles. The self-cleaning control system connects the water, air, and electricity mains to the self-cleaning nozzles through its controlled equipment, and implements the unclogging action of each nozzle through PLC control according to the site conditions. The system is designed with both manual and automatic modes. The parameters such as the start, stop, self-cleaning interval, and self-cleaning duration of the self-cleaning system can be monitored and set on the touch screen parameters and status window. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is an exploded view of the structure of this utility model.

[0022] In the diagram: 1. Five-way main connecting pipe; 2. Pagoda quick-connect fitting; 3. Air connection seat; 4. Water connection seat; 5. Water-air mixer; 6. Telescopic cleaning needle; 7. Nut mounting seat; 8. Connecting mixing cap. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1:

[0025] Please see Figures 1-2 As shown, a self-cleaning dry fog nozzle includes:

[0026] Five-way main connecting pipe 1;

[0027] Pagoda quick-connector 2, which is inserted into the interior of the five-way main connecting pipe 1;

[0028] Air passage connector 3, which is inserted into the top end of the five-way main body connecting pipe 1;

[0029] A water connection seat 4 is inserted at the top of the five-way main connecting pipe 1. A water-air mixer 5 is installed at the bottom of the five-way main connecting pipe 1. A telescopic cleaning needle 6 is fixedly connected to the bottom of the pagoda quick-connect fitting 2. A nut mounting seat 7 is sleeved on the outside of the water-air mixer 5. A connecting mixing cap 8 is connected to the bottom of the nut mounting seat 7. Threaded grooves are opened at the bottom of the air connection seat 3 and the water connection seat 4. The air connection seat 3 and the water connection seat 4 are threadedly connected to the top of the five-way main connecting pipe 1. The water-air mixer 5 is threadedly connected to the bottom of the five-way main connecting pipe 1. The telescopic cleaning needle 6 is inserted through the five-way main connecting pipe 1 and the water-air mixer 5. The air connection seat 3 and the water connection seat 4 are the same size. The telescopic cleaning needle 6 is controlled by the air pressure of the quick-tightening pagoda connector 2. The cleaning needle on the telescopic cleaning needle 6 is tightly fitted with the water-air mixer 5. The extension and retraction of the cleaning needle inside the telescopic cleaning needle 6 is controlled by opening and closing the air supply. The connecting mixing cap 8 is sealed to the outside of the water-air mixer 5 through the internal thread connecting nut mounting seat 7. The equal hole spacing of the water-air mixer 5 is increased, and the water and air output increases proportionally.

[0030] Specifically, this dry fog dust suppression nozzle system achieves efficient dust removal and intelligent anti-clogging functions through multi-stage synergistic action: Compressed air first passes through the transition guide hole inside the nozzle at high speed, forming a high-speed airflow jet under the constraint of the guide structure. Then, when it enters the converging nozzle, it accelerates to the speed of sound due to the sharp decrease in cross-sectional area, and generates high-frequency mechanical vibration in the supersonic flow state, forming sound waves with powerful energy. When these sound waves propagate inside the nozzle, on the one hand, they directly impact the built-in resonator cavity, amplifying the intensity of the main shock wave through sound wave reflection and superposition effects, so that the sound wave energy is highly concentrated on the nozzle body and the surface of the resonator. On the other hand, when water and compressed air initially mix in the mixing chamber to form droplets, the mechanical energy of the high-frequency sound waves is transferred through the droplet interface, shearing the water into extremely small droplets (the initial size is about one hundred thousandth of the size of a mung bean, i.e., micron-sized primary droplets). Under the continuous action of high-frequency sound energy, these primary droplets further undergo intense acoustic cavitation effects and energy conversion, and are finally refined into dry fog droplets with a stable particle size in the range of 1 to 6 microns. Meanwhile, the integrated automatic anti-clogging cleaning nozzle operates in series with the main dry fog system. It receives high-pressure compressed air (providing cleaning and atomization power) from the dry fog system through the same air duct, and receives tap water or recycled water through an independent water duct. During the main spraying process, it simultaneously performs a self-cleaning function. When the compressed air is turned on, the telescopic cleaning needle 6 extends under air pressure, removing impurities (such as scale, rust, and sediment) from the water-air mixer 5 and nozzles through physical scraping and airflow impact. When the compressed air is turned off, the cleaning needle retracts, the water-air mixer 5 returns to its maximum flow cross-section, and the high-speed airflow mixed with the water mist forcefully carries away the loosened impurities, ensuring... The system ensures the continuous flow of air through the nozzle's internal channels. Ultimately, based on the intelligent program instructions of the spray control equipment, the system precisely locates the dust suppression point and directionally sprays the generated 1-6 micron dry mist near the dust source. Utilizing the Brownian motion diffusion effect and inertial collision between the micron-sized droplets and dust particles, the dust particles and dry mist droplets come into full contact, adhere, and agglomerate into larger aggregates, which eventually settle naturally under gravity. This achieves highly efficient suppression of unorganized dust in open spaces and solves the high-altitude maintenance problem caused by impurity accumulation in traditional nozzles. It is particularly suitable for complex working environments with high manual maintenance costs, such as ports, docks, mines, and coal yards.

[0031] As can be seen from the above, the five-way main connecting pipe 1 serves as the main frame, with a pagoda quick-connect fitting 2 installed at the top via a tight insertion method. Simultaneously, the air connection seat 3 and water connection seat 4 are fixed to the top of the five-way main connecting pipe 1 via threaded locking, forming a stable input interface for both air and water channels. Its self-cleaning function is achieved by the telescopic cleaning needle 6: when the system is turned on with compressed air, the high-pressure airflow precisely acts on the telescopic cleaning needle 6 through the pagoda quick-connect fitting 2, pushing the cleaning needle forward. At this time, the self-cleaning needle at the front end of the telescopic cleaning needle 6 dynamically cooperates with the equidistant precision flow channels inside the water-air mixer 5 (the flow channel hole spacing is optimized to ensure a micro-gap between the cleaning needle and the flow channel wall during the extension and retraction process). Through the dual action of physical scraping and airflow impact, the cleaning needle adhering to the flow channel is cleaned. Impurities (such as scale, rust, and silt) on the inner wall and at the nozzle are removed from the dead corners. When the compressed air is turned off, the telescopic cleaning needle 6 automatically retracts to its initial position under its own elasticity or air pressure release. At this time, the equal orifice spacing of the water-air mixer 5 returns to the maximum flow state. The mixed fluid of water and air is sprayed out at high speed with increased flow through the connecting mixing cap 8. The scouring force generated by the high-speed fluid carries away the impurities that have been loosened by the cleaning needle from the inside of the nozzle and finally discharges them out of the system through the spray. This completes a complete "extend scraping - retract flushing" self-cleaning cycle, effectively solving the clogging problem of traditional nozzles caused by the accumulation of scale, silt, rust, and silt. It is especially suitable for complex working environments such as ports and docks where high-altitude installation and maintenance are difficult.

[0032] All standard parts used in this invention can be purchased from the market, and irregularly shaped parts can be customized according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all use conventional models in the prior art, and the circuit connections also use conventional connection methods in the prior art, which will not be detailed here. Any content not described in detail in this specification belongs to the prior art known to those skilled in the art.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A self-cleaning dry fog nozzle, characterized in that, include: Five-way main connecting pipe (1); The pagoda quick-connect fitting (2) is inserted inside the five-way main connecting pipe (1); Air passage connector (3), which is inserted into the top of the five-way main body connecting pipe (1); Water connection seat (4) is inserted at the top of the five-way main connecting pipe (1), and a water-air mixer (5) is installed at the bottom of the five-way main connecting pipe (1).

2. The self-cleaning dry fog nozzle according to claim 1, characterized in that: The bottom end of the pagoda quick-connect fitting (2) is fixedly connected to a telescopic cleaning needle (6), and the outside of the water-air mixer (5) is fitted with a nut mounting seat (7).

3. A self-cleaning dry fog nozzle according to claim 2, characterized in that: The bottom end of the nut mounting base (7) is connected to a connecting mixing cap (8).

4. The self-cleaning dry fog nozzle according to claim 1, characterized in that: The bottom ends of the air connection seat (3) and the water connection seat (4) are provided with threaded grooves. The air connection seat (3) and the water connection seat (4) are threaded to the top end of the five-way main body connection pipe (1). The water-air mixer (5) is threaded to the bottom end of the five-way main body connection pipe (1).

5. A self-cleaning dry fog nozzle according to claim 2, characterized in that: The telescopic cleaning needle (6) is inserted through the five-way main connecting pipe (1) and the water-air mixer (5). The air connection seat (3) and the water connection seat (4) are the same size.

6. A self-cleaning dry fog nozzle according to claim 2, characterized in that: The telescopic cleaning needle (6) is controlled by the air pressure of the quick-tight pagoda quick-tight connector (2) to extend and retract the telescopic cleaning needle (6). The cleaning needle on the telescopic cleaning needle (6) and the water-air mixer (5) are closely matched.

7. A self-cleaning dry fog nozzle according to claim 3, characterized in that: The extension and retraction of the cleaning needle inside the telescopic cleaning needle (6) is controlled by opening and closing the air supply. The connecting mixing cap (8) is sealed to the outside of the water-air mixer (5) through the internal thread connecting nut mounting seat (7).

8. A self-cleaning dry fog nozzle according to claim 2, characterized in that: The equal orifice spacing of the water-air mixer (5) is increased, and the water and air output increases proportionally.

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