CN115228643A - A kind of pneumatic atomization spraying method and system - Google Patents

Abstract

The invention provides a pneumatic atomization spraying method and a system, which relate to the technical field of spraying, and the system comprises: the device comprises an air source module, a second air circuit module, a first air circuit module, an atomization module, a mist flow processing module and a spraying module; the air source module is respectively connected with the second air path module and the first air path module, and positive pressure is provided to the second air path module through the air source module so as to output the first preset air flow to the atomization module; the atomization module is connected with the fog flow processing module, the fog flow processing module is respectively connected with the spraying module and the first air path module, the atomization module atomizes preset liquid through first preset air flow to output atomized air flow, and the atomized air flow is subjected to shunting processing through the fog flow processing module to output first atomized air flow and second atomized air flow respectively, and the first atomized air flow is sprayed out through the spraying module. The invention can solve the technical problems of difficult atomization of liquid with overlarge concentration or overhigh viscosity and unstable air flow control in the prior art.

Description

A kind of pneumatic atomization spraying method and system

technical field

The invention relates to the technical field of spraying, in particular to a pneumatic atomization spraying method and system.

Background technique

Traditional aerosol spraying adopts ultrasonic atomization. Because of its convenient control and good stability, its application rate is high in high-precision material spraying. However, ultrasonic atomization has higher requirements for material concentration and viscosity. , which limits the application field of aerosol spraying. In order to enhance the applicability of aerosol spraying and broaden the scope of use, the use of pneumatic atomization can solve the problem that the ink cannot be atomized due to excessive material concentration and high viscosity.

However, the existing pneumatic atomization aerosol spraying technology still has technical defects such as unstable mist flow, poor air volume control, and inability to quantify the control process during the atomization process.

Therefore, the existing spraying systems generally have the technical problems of difficulty in atomizing liquids with excessive concentration or excessive viscosity and unstable air volume control.

SUMMARY OF THE INVENTION

In view of the deficiencies of the prior art, the purpose of the present invention is to provide a pneumatic atomization spraying method and system, aiming to solve the technical problems of the difficulty of atomization of liquids with excessive concentration or excessive viscosity and the unstable air volume control in the prior art .

One aspect of the present invention is to provide a pneumatic atomization spraying system, the pneumatic atomization spraying system includes:

Air source module, second air path module, first air path module, atomization module, mist flow processing module and spraying module;

The air source module is respectively connected to the second air path module and the first air path module, and positive pressure is provided to the second air path module through the air source module to pass through the second air path module outputting a first preset airflow to the atomization module;

The output end of the atomization module is connected to the mist flow processing module, the output end of the mist flow treatment module is respectively connected to the spraying module and the first air path module, and the atomization module passes through the first preset The airflow atomizes the preset liquid to output the atomized airflow to the atomized airflow processing module, and the atomized airflow is divided by the atomized airflow processing module to output the first atomized airflow and the atomized airflow respectively. The second atomizing airflow, wherein the first atomizing airflow is sprayed through the spraying module, and the second atomizing airflow provides negative pressure to the first air path module through the air source module, so that the The second atomizing air flow is output to the air source module through the first air path module.

Compared with the prior art, the beneficial effect of the present invention is: the pneumatic atomization spraying system provided by the present invention, specifically, the pneumatic atomization spraying system includes an air source module, a second air path module, and a first air path module , atomization module, mist flow processing module and spraying module, the air source module is respectively connected to the second air path module and the first air path module, and the air source module provides positive pressure to the second air path module to pass the second air path The module outputs a first preset airflow to the atomization module; the output end of the atomization module is connected to the mist flow processing module, the output end of the mist flow processing module is respectively connected to the spraying module and the first air path module, and the atomization module passes through the first The preset airflow atomizes the preset liquid to output the atomized airflow to the mist flow processing module. Without ultrasonic atomization, preset liquids with different viscosities and concentrations can be controlled by the flow rate and pressure of the first preset airflow. Atomization treatment can be adjusted to the best atomization effect. It has a wide range of applications and avoids the high requirements of ultrasonic atomization on the concentration and viscosity of materials, which makes it difficult to atomize liquids with excessive concentration or high viscosity. The mist flow processing module divides the atomized airflow to output the first atomized airflow and the second atomized airflow respectively, wherein the first atomized airflow is sprayed through the spraying module, and the second atomized airflow passes through the air source module. The first air path module provides negative pressure, so that the second atomizing air flow is output to the air source module through the first air path module. The interference of the atomizing airflow on the first atomizing airflow improves the stability of the first atomizing airflow, so that the spraying of the first atomizing airflow is more accurate and stable. The adjustment of the flow rate further reduces the interference of the second atomizing airflow to the first atomizing airflow, improves the accuracy and stability of the spraying of the first atomizing airflow, and the whole system has a simple design and low cost. Thus, the technical problems of difficult atomization of liquids with excessive concentration or excessive viscosity and unstable air volume control are solved.

According to an aspect of the above technical solution, the first gas path module includes a first-stage pressure valve, a first-stage pressure tank, a first-stage pressure valve, and a first-stage regulator valve that are connected in sequence. A primary pressure valve is connected to the air source module, the first secondary regulating valve is connected to the mist flow processing module, and negative pressure is provided through the air source module, so that the second atomization gas flow passes through all the The first-stage regulating valve, the first-stage pressure valve, the first-stage pressure tank, and the first-stage pressure valve are output to the air source module.

According to an aspect of the above technical solution, the second air path module includes a second primary pressure valve connected to the air source module and a second secondary pressure valve connected to the second primary pressure valve, and the second primary pressure valve is connected to the second primary pressure valve. The second-stage regulating valve is connected to the atomization module, and positive pressure is provided through the air source module, so that the first preset airflow passes through the second-stage pressure valve and the second-stage regulating valve in sequence. The valve output is to the nebulization module.

According to an aspect of the above technical solution, the air source module includes a primary negative pressure air source and a primary positive pressure air source, and the primary negative pressure air source is connected to the first air path module for supplying The first air circuit module provides negative pressure, and the primary positive pressure air source is connected to the second air circuit module for providing positive pressure to the second air circuit module.

According to an aspect of the above technical solution, the mist flow processing module includes a mist flow splitting device and a mist flow processing device connected to the mist flow splitting device, and the input end of the mist flow splitting device is connected to the atomization module, so The mist flow splitting device performs split processing on the atomized airflow and outputs the first atomized airflow and the second atomized airflow obtained by splitting to the first channel and the second channel, respectively, and the first atomized airflow passes through the The first channel is output to the spraying module, and the second atomized airflow is output to the first air path module through the second channel.

According to an aspect of the above technical solution, the output end of the mist flow treatment device is connected to the first two-stage regulating valve, the input end of the mist flow treatment device is connected to the second channel, and the second atomization airflow After being output to the mist flow treatment device through the second channel for pretreatment, it is transported to the first air path module.

According to an aspect of the above technical solution, the pneumatic atomization spraying system further includes a third air circuit module, the third air circuit module includes a third primary pressure valve connected to the primary positive pressure air source, and A third-stage monitor connected to the third-stage pressure valve, the output end of the third-stage monitor is connected to the spraying module, and positive pressure is provided through the first-stage positive pressure air source, a first Two preset airflows are output to the spraying module through the third primary pressure valve and the third secondary monitor.

According to an aspect of the above technical solution, the second gas circuit module further includes a second secondary monitor, the first gas circuit module further includes a first secondary monitor, the second secondary monitor and the The first and second level monitors are respectively used to measure the flow rates of the first preset airflow and the second atomizing airflow.

Another aspect of the present invention is to provide a pneumatic atomization spraying method, the method is realized by any one of the pneumatic atomization spraying systems described above, and the method includes:

Controlling the air source module to provide positive pressure to the second air path module, so that the second air path module outputs the first preset airflow to the atomization module;

Based on the first preset airflow, controlling the atomization module to atomize the preset liquid and output the atomization airflow to the mist flow processing module;

Divide the atomizing airflow by the mist processing module to output the first atomizing airflow and the second atomizing airflow respectively;

Control the spraying module to spray the first atomized air flow, and control the air source module to provide negative pressure to the first air path module, so that the second atomized air flow is output to the first air path module through the first air path module. the air source module.

According to an aspect of the above technical solution, the method further includes:

The air source module is controlled to provide positive pressure to the third air path module, so that a second preset air flow is output to the spraying device through the third air path module.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments in conjunction with the accompanying drawings, wherein:

Fig. 1 is the structural block diagram of the pneumatic atomization spraying system in the first embodiment of the present invention;

Fig. 2 is the structural representation of the pneumatic atomization spraying system in the first embodiment of the present invention;

Fig. 3 is the concrete structural schematic diagram of the pneumatic atomization spraying system in the first embodiment of the present invention;

4 is a schematic structural diagram of a pneumatic atomization spraying system in a second embodiment of the present invention;

5 is a schematic structural diagram of a pneumatic atomization spraying system in a third embodiment of the present invention;

Fig. 6 is the flow chart of the pneumatic atomization spraying method in the fourth embodiment of the present invention;

Description of component symbols in the attached drawings:

The air source module 100 , the second air circuit module 200 , the first air circuit module 300 , the atomization module 400 , the mist flow processing module 500 , the spraying module 600 , and the third air circuit module 700 .

Detailed ways

In order to make the objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Several embodiments of the invention are presented in the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical", "horizontal", "left", "right", "upper", "lower" and similar expressions used herein are for the purpose of illustration only and do not indicate or imply the referred device or Elements must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the invention.

In the present invention, unless otherwise expressly specified and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or integrally connected; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

Please refer to FIG. 1-FIG. 3, which shows a pneumatic atomization spraying system provided by the present invention. The pneumatic atomization spraying system includes an air source module 100, a second air path module 200, a first air path module 300, Atomization module 400 , mist flow processing module 500 and spraying module 600 . The air source module 100 is used to provide air pressure to the second air path module 200 and the first air path module 300. The air source module 100 includes a primary negative pressure air source, a primary positive pressure air source, and a primary negative pressure air source. It is connected with the first air path module 300 to provide negative pressure to the first air path module 300, so as to stably output the second atomizing airflow to the primary negative pressure air source through the first air path module 300. The positive pressure air source is connected to the second air path module 200 for providing positive pressure to the second air path module 200 so as to output the first preset airflow to the atomization module 400 through the second air path module 200 .

The second air circuit module 200 includes a second primary pressure valve connected to the air source module 100 and a second secondary pressure regulating valve connected to the second primary pressure valve, and the input end of the second primary pressure valve is connected to the primary pressure valve The positive pressure air source, the output end of the second secondary regulating valve is connected to the atomization module 400 . Positive pressure is provided by the air source module 100, so that the first preset air flow is output to the atomization module 400 through the second primary pressure valve and the second secondary regulating valve in sequence, and the second primary pressure valve controls the entire second gas path The total air pressure of the module 200 maintains the stability of the first preset airflow of the second air path module 200 . The second two-stage regulating valve adjusts the flow rate of the first preset airflow of the second air circuit module 200. In addition, the second air circuit module 200 further includes a second-stage monitor. In this embodiment, the second-stage The monitor is a second digital flowmeter, the second digital flowmeter is set between the second two-stage regulating valve and the atomization module 400 , and the first digital flowmeter in the second gas path module 200 is detected in real time through the second digital flowmeter. The flow value of the preset airflow is used to adjust the flow rate of the first preset airflow of the second air path module 200 with the second two-stage regulating valve to complete the precise and stable control of the first preset airflow, and realize the precise and stable flow of the first preset airflow. And the pressure is sent to the atomization module 400 to improve the atomization effect of the atomization module 400 . The second-stage pressure valve and the second-stage pressure regulating valve have the functions of continuous adjustment and locking to improve the flow stability of the first preset airflow, wherein the second-stage pressure valve includes but is not limited to positive pressure reduction Pressure valve, positive pressure regulator valve, flow valve, flowmeter, numerical control gas flowmeter, etc.

Further, the atomization module 400 is used to atomize the preset liquid through the first preset airflow, and the atomization module 400 includes an atomization device and a preset liquid stored in the atomization device. In this embodiment, the The preset liquid can be aerosol, the atomizing device is provided with an air outlet pipe and an air inlet pipe inserted into the preset liquid, the air inlet of the air inlet pipe is inserted into the preset liquid stored in the atomizing device, and the outlet of the air outlet pipe is The air port is connected to the mist flow splitting device, the first preset air flow is output to the preset liquid through the second air path module 200 and the air inlet pipe, and the atomization device will mist the preset liquid according to the flow rate and pressure of the first preset air flow The atomization air flow is formed, and the atomization effect of the atomization air flow depends on the flow rate and pressure of the first preset air flow. Wherein, the atomization device may be a collision atomizer, and the collision atomizer adopts an aerosolization method to atomize the preset liquid. When the first preset airflow enters from the air inlet, the drop in pressure causes the liquid to rise after passing through the pipeline. Then the preset liquid is broken and atomized by the high-speed first preset airflow to generate droplets with a wide range of particle sizes. This atomized liquid is then impinged on the wall of the tank, and then smaller droplets are generated by the first preset air flow from the air outlet to form an atomized air flow. It should be noted that by adjusting the second stage pressure valve The pressure and flow rate of the first preset air flow and the second two-stage regulating valve can atomize preset liquids of different viscosities and concentrations, and can be widely used in materials of different concentrations and viscosities, avoiding the impact of ultrasonic atomization on the concentration of materials. , viscosity and other requirements are high, and the liquid with too high concentration or too high viscosity is difficult to atomize. At the same time, by adjusting the pressure and flow of the first preset airflow of the second-stage pressure valve and the second-stage regulating valve, the best atomization effect of the atomizing airflow can be achieved, so as to achieve accurate and stable control of the atomization effect. , to improve the air volume control of atomization.

In addition, the air outlet of the atomization device outputs the atomized air flow to the mist flow processing module 500, and the mist flow treatment device is used for splitting the atomized air flow. The mist flow processing module 500 includes a mist flow splitting device and a mist flow processing device connected to the mist flow splitting device, and the input end of the mist flow splitting device is connected to the air outlet pipe of the atomizing device. The required flow rate of the atomizing airflow is very small, so it is necessary to divide the atomizing airflow into a large-flux tributary and a small-flux tributary, and the small-flux tributary enters the spraying module 600 to complete the spraying. The flow splitting device will split the atomizing airflow and output the first atomizing airflow and the second atomizing airflow obtained by splitting to the first channel and the second channel respectively, and the first channel outputs the first atomizing airflow, that is, the small The flux branch flow, the first channel is connected to the spraying module 600 , the first atomized airflow is output to the spraying module 600 through the first channel, and the spraying of the first atomized airflow is completed through the spraying module 600 .

Further, the output end of the mist flow treatment device is connected to the first two-stage regulating valve, the input end of the mist flow treatment device is connected to the second channel, and the second atomization air flow, that is, a large flux tributary, is output to the mist flow treatment through the second channel. After the device is pretreated, it is output to the primary negative pressure air source through the first air path module 300, wherein the mist flow treatment device can have functions such as drying, filtration, recovery and impurity removal, and the required liquid is selected according to the material of the preset liquid. Pre-treated mist stream treatment device. For example, the large particulate matter contained in the second atomizing gas flow can be removed by the filtering function of the mist flow treatment device, so as to prevent the large particulate matter in the second atomizing gas flow from being input into the second gas path module 200. When the negative pressure air source discharges the second atomizing air flow through the air pump, the large particles cause the air pump to block, so that the second atomizing air flow cannot be discharged, which affects the spraying of the first atomizing air flow, or the recovery function of the mist flow treatment device. The preset liquid in the second atomizing airflow is recycled and reused, which saves costs and avoids waste of the preset liquid.

The second atomizing air flow is pretreated and output to the first air path module 300, and the first air path module 300 is used to stably output the pretreated second atomizing air flow to the primary negative pressure air source. The first gas path module 300 includes a first-stage pressure valve, a first-stage pressure tank, a first-stage pressure valve, and a first-stage regulator valve, which are connected in sequence, and the first-stage pressure valve is connected to the first-stage negative pressure gas. The first and second level regulating valve is connected to the mist flow processing module 500, and is provided with negative pressure through the primary negative pressure air source, so that the second atomizing air flow passes through the first and second level regulating valve, the first and second level pressure valve, The first-stage pressure tank and the first-stage pressure valve are output to the first-stage negative pressure air source, wherein the first-stage pressure valve is set upstream of the first-stage negative pressure air source to control the pressure of the air source, and the first-stage pressure valve The pressure tank is arranged between the first-stage pressure valve and the first-stage pressure valve, and the second atomizing gas flow is introduced into the first-stage pressure tank to play a buffering role to stabilize the air pressure of the second atomizing gas flow. The volume of the first and second stage pressure tanks is greater than or equal to 0.5L, and the quantity is at least one. In this embodiment, the first and second stage pressure tanks are two 5L pressure tanks, which are used to stabilize the air pressure of the first gas path module 300 . By setting the first-stage pressure valve, the first-stage pressure tank, and the first-stage pressure valve, the air pressure of the first air path module 300 can be accurately and stably controlled, so that the first atomization in the first channel is not affected. The stability of the air pressure of the airflow, thereby improving the spraying effect of the first atomizing airflow. It is avoided that the air pressure of the first air path module 300 is unstable and the air pressure of the first atomizing air flow is unstable, which affects the spraying effect. In addition, the setting of the first and second-level regulating valve is used to adjust and control the gas flow of the second atomizing gas flow in the first gas path module 300 . Two atomization airflow, that is, precise and stable control of large flux mist flow. Among them, the first-stage pressure valve, the first-stage pressure valve and the first-stage pressure regulating valve have the functions of continuous adjustment and locking, so as to improve the stability of the flow of the second atomizing air flow, and the first-stage pressure valve And the first and second stage pressure valves include but are not limited to positive pressure reducing valves, positive pressure regulating valves, flow valves, flow meters, numerically controlled gas flow meters, and the like.

In addition, the second gas path module 200 further includes a first-level monitor. In this embodiment, the first-level monitor is a first digital flowmeter, and the first digital flowmeter is set between the first-level regulating valve and the first-level regulating valve. Between the mist flow treatment devices, the first digital flow meter is used to detect the flow rate of the second atomization airflow in real time, and is used with the first secondary regulating valve to adjust the flow rate of the second atomization airflow of the first air path module 300 to complete the second mist flow. The precise and stable control of the atomizing airflow enables the accurate and stable flow of the second atomizing airflow to be output to the primary negative pressure air source, without affecting the flow of the first atomizing airflow in the first channel, thereby improving the spraying effect of the first atomizing airflow.

In addition, the pneumatic atomization spraying system further includes a third air circuit module 700, the third air circuit module 700 is used to increase the spraying stability of the spraying module 600, and the input end of the third air circuit module 700 is connected to the primary positive pressure Air source, the output end of the third air circuit module 700 is connected to the spraying module 600, the spraying module 600 is used for spraying the first atomized airflow, the spraying module 600 includes a nozzle, the first atomized airflow is sprayed through the nozzle, and the third air circuit module 700 includes a third-stage pressure valve connected to the first-stage positive pressure gas source and a third-stage monitor connected to the third-stage pressure valve. In this embodiment, the third-stage monitor is a third number A flow meter, wherein the third primary pressure valve is used to control the total air pressure of the entire third air path module 700, and the third digital flow meter is used to detect the flow of the second preset air flow in real time, which is provided by the primary positive pressure air source Positive pressure, the second preset air flow is delivered to the spraying module 600 through the third primary pressure valve and the third digital flowmeter, so that the first atomized air flow and the second preset air flow meet into the spraying module 600, so that the first The atomizing airflow can spray more accurately and stably to increase the spraying stability of the first atomizing airflow. By precisely controlling the flow and air pressure of the second preset airflow, the spraying of the first atomizing airflow is more accurate and stable. , wherein, the third-stage pressure valve has the functions of continuous adjustment and locking to improve the stability of the flow of the second preset airflow, and the third-stage pressure valve includes but is not limited to a positive pressure reducing valve, a positive pressure regulator Pressure valve, flow valve, flowmeter, numerical control gas flowmeter, etc. Through the three independent air flow control modules of the second air path module 200 , the first air path module 300 and the third air path module 700 , the interference between the air paths is reduced, and the spraying is more stable and accurate.

As a specific example, in this embodiment, the optional components of the first gas path module 300 are respectively a negative pressure reducing valve for the first stage pressure valve, and two 5L pressure tanks for the first stage pressure tank. , The first and second stage pressure valve is equipped with negative pressure reducing valve, the first and second stage monitor is equipped with digital flowmeter, and the first and second stage regulating valve is equipped with negative pressure flow valve. In the flow direction of the second atomizing airflow, the arrangement sequence of each element is digital flow meter, negative pressure flow valve, negative pressure reducing valve, 5L pressure tank, 5L pressure tank, negative pressure reducing valve;

The optional components of the second air circuit module 200 are respectively a positive pressure reducing valve for the second stage pressure valve, a positive pressure flow valve for the second stage regulating valve, and a digital flowmeter for the second stage monitor. . In the first preset airflow direction, the arrangement sequence of each element is positive pressure reducing valve, positive pressure flow valve, and digital flow meter in sequence;

The optional components of the third air path module 700 are that the third stage pressure valve is equipped with a positive pressure reducing valve, the third stage regulating valve is discarded, and the third stage monitor is equipped with a digital flow meter. In the second preset airflow direction, the arrangement sequence of each element is a positive pressure reducing valve and a digital flow meter in sequence. The mist flow processing module 500 includes mist flow splitting, drying, filtration, and recovery;

Through the precise and stable control and cooperation of the first air path module 300 , the second air path module 200 and the third air path module 700 , the aerosol mist flow generated by the pneumatic atomization system can be sprayed through the spraying module 600 precisely, stably and finely. out.

Compared with the prior art, the pneumatic atomization spraying system provided in this embodiment has the beneficial effects that the pneumatic atomization spraying system includes an air source module, a second air path module, a first air path module, and an atomization module. , mist flow processing module and spraying module, the air source module is respectively connected to the second air path module and the first air path module, and the air source module provides positive pressure to the second air path module, so as to pass the second air path module to the first air path module. A preset airflow is output to the atomization module; the output end of the atomization module is connected to the mist flow processing module, and the output end of the mist flow processing module is respectively connected to the spraying module and the first air path module, and the atomization module passes the first preset airflow to The preset liquid is atomized to output the atomized air flow to the mist flow processing module. Without ultrasonic atomization, preset liquids with different viscosities and concentrations can be atomized and processed by controlling the flow rate and pressure of the first preset air flow. It can be adjusted to the best atomization effect and has a wide range of applications, which avoids the high requirements of ultrasonic atomization on the concentration and viscosity of materials, which make it difficult to atomize liquids with excessive concentration or viscosity. Divide the atomized airflow to output the first atomized airflow and the second atomized airflow respectively, wherein the first atomized airflow is sprayed through the spraying module, and the second atomized airflow passes through the air source module to the first air path The module provides negative pressure, so that the second atomizing air flow is output to the air source module through the first air path module, and through the independent air flow control of the second air path module and the first air path module, the second atomizing air flow is reduced. The interference of the first atomizing airflow improves the stability of the first atomizing airflow, so that the spraying of the first atomizing airflow is more accurate and stable, and the adjustment of the pressure and flow of the second air path module and the first air path module, The interference of the second atomizing airflow to the first atomizing airflow is further reduced, the accuracy and stability of the spraying of the first atomizing airflow are improved, and the whole system is simple in design and low in cost. Thus, the technical problems of difficult atomization of liquids with excessive concentration or excessive viscosity and unstable air volume control are solved.

Embodiment 2

Please refer to FIG. 4 , which shows a pneumatic atomization spraying system provided by the second embodiment of the present invention. The difference between the pneumatic atomization spraying system and the pneumatic atomization spraying system in the first embodiment is:

The first-stage pressure tank is a 20L pressure tank, the second digital flowmeter is set between the second-stage pressure valve and the second-stage regulating valve, and the first digital flowmeter is set between the first-stage pressure valve and the second-stage pressure valve. Between the first and second stage regulating valves, the service life of the first digital flowmeter is increased, and the second atomizing air flow is prevented from being directly output to the first digital flowmeter. A third-stage regulating valve is arranged between the third-stage pressure valve and the third digital flowmeter, and the third-stage regulating valve is used to control the third-stage regulating valve of the third gas circuit module 700. The flow rate of the second preset airflow is coordinated with the real-time detection of the flow value of the second preset airflow by the third digital flow meter to complete the precise and stable control of the second preset airflow, so as to accurately and stably control the flow rate of the first atomizing airflow. spray.

Specifically, in this embodiment, the optional components of the first air path module 300 are respectively a negative pressure reducing valve for the first stage pressure valve, a 20L pressure tank for the first stage pressure tank, and a first stage pressure tank for matching a 20L pressure tank. The second-level pressure valve is equipped with a negative pressure reducing valve, the first-level monitor is equipped with a digital flowmeter, and the first-level regulator valve is equipped with a negative pressure flow valve. In the flow direction of the second atomizing airflow, the arrangement sequence of each element is negative pressure flow valve, digital flowmeter, negative pressure reducing valve, 20L pressure tank, negative pressure reducing valve;

The optional components of the second gas path module 200 are respectively a positive pressure regulator valve for the second stage pressure valve, a positive pressure flow valve for the second stage regulating valve, and a digital flowmeter for the second stage monitor. . In the first preset airflow direction, the arrangement sequence of each element is a positive pressure reducing valve, a digital flow meter, and a positive pressure flow valve;

The optional components of the third air path module 700 are the third stage pressure valve matching positive pressure reducing valve, the third stage regulating valve matching positive pressure flow valve, and the third stage monitor matching digital flow meter . In the second preset airflow direction, the arrangement sequence of each element is a positive pressure reducing valve, a positive pressure flow valve, and a digital flow meter. The mist flow processing module 500 includes mist flow splitting, drying and filtering;

Through the precise and stable control and cooperation of the first air path module 300 , the second air path module 200 and the third air path module 700 , the aerosol mist flow generated by the pneumatic atomization system can be sprayed through the spraying module 600 precisely, stably and finely. out.

Compared with the prior art, the pneumatic atomization spraying system provided in this embodiment has the beneficial effect that preset liquids with different viscosities and concentrations can be atomized by controlling the flow rate and pressure of the first preset airflow. It can be processed and adjusted to the best atomization effect. It has a wide range of applications and avoids the high requirements of ultrasonic atomization on the concentration and viscosity of materials, which makes it difficult to atomize liquids with excessive concentration or high viscosity. The independent air flow control of the circuit module and the first air circuit module reduces the interference of the second atomizing air flow to the first atomizing air flow and improves the stability of the first atomizing air flow, so that the spraying effect of the first atomizing air flow is improved. More accurate and stable, the adjustment of the pressure and flow of the second air path module and the first air path module further reduces the interference of the second atomizing air flow to the first atomizing air flow, and improves the spraying accuracy of the first atomizing air flow. Stability, simple design of the whole system and low cost, in addition, the first digital flowmeter is set between the first and second stage pressure valve and the first second stage regulating valve to improve the service life of the first digital flowmeter, and the second A third-stage regulating valve is arranged between the third-stage pressure valve and the third digital flowmeter, and the third-stage regulating valve is used to control the flow rate of the second preset air flow of the third air path module, so as to pass the The real-time detection of the flow value of the second preset airflow by the digital flow meter is coordinated to complete the precise and stable control of the second preset airflow, so as to accurately and stably control the spraying of the first atomizing airflow, thereby solving the problem of excessive concentration or high viscosity. The technical problems of difficult liquid atomization and unstable air volume control.

Embodiment 3

Please refer to FIG. 5 , which shows a pneumatic atomization spraying system provided by the third embodiment of the present invention. The difference between the pneumatic atomization spraying system and the pneumatic atomization spraying system in the first embodiment is:

The first-level pressure tank is a 50L pressure tank, and the second-level monitor is set between the first-level pressure valve and the first-level regulator valve to improve the service life of the second-level monitor and avoid the second-level monitor. The second-stage atomizing air flow is directly output to the second-stage monitor. Excessive flow fluctuation or sudden rise and fall will cause the sensitivity of the second-stage monitor to decrease, resulting in abnormal detection flow and failure. The third-stage pressure valve and the third-stage pressure valve A third-level regulating valve is arranged between the second-level monitors, and the third-level regulating valve is used to control the flow rate of the second preset airflow of the third air circuit module 700, so as to pass the real-time monitoring with the third-level monitor. The flow value of the second preset airflow is detected and matched to complete the precise and stable control of the second preset airflow.

As a specific example, in this embodiment, the optional components of the first gas path module 300 are respectively a negative pressure (vacuum) pressure reducing valve for the first stage pressure valve, and a 50L for the first stage pressure tank. For the pressure tank, the first and second level pressure valves are equipped with a negative pressure (vacuum) pressure reducing valve, the first and second level monitors are equipped with a digital flowmeter, and the first and second level regulating valves are equipped with a negative pressure (vacuum) flow valve. In the flow direction of the second atomizing airflow, the arrangement sequence of each component is negative pressure (vacuum) flow valve, digital flowmeter, negative pressure (vacuum) pressure reducing valve, 50L pressure tank, negative pressure (vacuum) pressure reducing valve ;

The optional components of the second gas path module 200 are respectively a positive pressure regulator valve for the second stage pressure valve, a positive pressure flow valve for the second stage regulating valve, and a digital flowmeter for the second stage monitor. . In the first preset airflow direction, the arrangement sequence of each element is positive pressure reducing valve, positive pressure flow valve, and digital flow meter in sequence;

The optional components of the third air path module 700 are the third stage pressure valve matching positive pressure reducing valve, the third stage regulating valve matching positive pressure flow valve, and the third stage monitor matching digital flow meter . In the second preset airflow direction, the arrangement sequence of each element is a positive pressure reducing valve, a positive pressure flowmeter, and a digital flowmeter in sequence. The mist flow processing module 500 includes mist flow splitting, drying, filtering, and impurity removal;

Through the precise and stable control and cooperation of the first air path module 300 , the second air path module 200 and the third air path module 700 , the aerosol mist flow generated by the airflow atomization system can be sprayed through the spraying module 600 precisely, stably and finely. out.

Compared with the prior art, the pneumatic atomization spraying system provided in this embodiment has the beneficial effect that preset liquids with different viscosities and concentrations can be atomized by controlling the flow rate and pressure of the first preset airflow. It can be processed and adjusted to the best atomization effect. It has a wide range of applications and avoids the high requirements of ultrasonic atomization on the concentration and viscosity of materials, which makes it difficult to atomize liquids with excessive concentration or high viscosity. The independent air flow control of the circuit module and the first air circuit module reduces the interference of the second atomizing air flow to the first atomizing air flow and improves the stability of the first atomizing air flow, so that the spraying effect of the first atomizing air flow is improved. More accurate and stable, the adjustment of the pressure and flow of the second air path module and the first air path module further reduces the interference of the second atomizing air flow to the first atomizing air flow, and improves the spraying accuracy of the first atomizing air flow. Stability, the whole system is simple in design and low in cost. The second-level monitor is located between the first-level pressure valve and the first-level regulator valve to improve the service life of the second-level monitor. The third-level monitor A third-stage regulating valve is arranged between the pressure valve and the third-stage monitor, and the third-stage regulating valve is used to control the flow rate of the second preset airflow of the third air path module to pass through the third-stage regulating valve. The monitor's real-time detection of the flow value of the second preset airflow is coordinated to complete the precise and stable control of the second preset airflow, so as to accurately and stably control the spraying of the first atomizing airflow, thereby solving the problem of excessive concentration or high viscosity. The technical problems of difficult liquid atomization and unstable gas volume control.

Embodiment 4

Please refer to FIG. 6, which shows a fourth embodiment of the present invention provides a pneumatic atomization spraying method, and the control method includes steps S10-S13:

Step S10, controlling the air source module to provide positive pressure to the second air path module, so that the second air path module outputs the first preset airflow to the atomization module;

Specifically, the air source module is used to provide air pressure to the second air path module and the first air path module, the air source module includes a primary negative pressure air source and a primary positive pressure air source, and the primary positive pressure air source and the second The air circuit module is connected for providing positive pressure to the second air circuit module, so that the second air circuit module outputs airflow to the atomization module.

The second air circuit module includes a second primary pressure valve and a second secondary regulating valve connected to the second primary pressure valve. The input end of the second primary pressure valve is connected to the primary positive pressure gas source, and the second primary pressure valve The output end of the secondary regulating valve is connected to the atomization module. The positive pressure is provided by the primary positive pressure air source, so that the first preset airflow is output to the atomization module through the second primary pressure valve and the second secondary regulating valve in turn, and the second primary pressure valve controls the entire second gas flow. The total air pressure of the circuit module. The second secondary regulating valve adjusts the flow rate of the first preset airflow of the second air circuit module. In addition, the second air circuit module further includes a second secondary monitor, and the second secondary monitor is used to detect the second The flow value of the first preset airflow in the air path module is used to adjust the flow rate of the first preset airflow in the second air path module with the second two-stage regulating valve to complete the precise and stable control of the first preset airflow and realize the first preset airflow. The preset airflow is delivered to the atomization module with precise and stable flow and pressure to improve the atomization effect of the atomization module.

Step S11, based on the first preset airflow, control the atomization module to atomize the preset liquid and output the atomized airflow to the mist flow processing module;

Wherein, the atomization module includes an atomization device and a preset liquid set in the atomization device, the atomization device is provided with an air outlet and an air inlet inserted into the preset liquid, and the first preset airflow passes through the second air path The module outputs to the air inlet and contacts the preset liquid. The atomizing device will atomize the preset liquid according to the flow rate and pressure of the first preset airflow to form an atomizing airflow. The atomization effect of the atomizing airflow depends on the first preset airflow. Preset the flow rate and pressure of the airflow.

It should be noted that, by adjusting the pressure and flow rate of the first preset airflow of the second-stage pressure valve and the second-stage regulating valve, preset liquids with different viscosities and concentrations can be atomized, which can be widely used in different concentrations. and viscosity materials, to avoid ultrasonic atomization with high requirements for material concentration, viscosity, etc., and it is difficult to atomize liquids with excessive concentration or high viscosity. At the same time, by adjusting the pressure and flow of the first preset airflow of the second-stage pressure valve and the second-stage regulating valve, the best atomization effect of the atomizing airflow can be achieved, so as to achieve accurate and stable control of the atomization effect. , to improve the air volume control of atomization.

Step S12, splitting the atomized air flow through the mist flow processing module, so as to output the first atomized air flow and the second atomized air flow respectively;

Wherein, the mist flow treatment device is used for split flow treatment of the atomized air flow. The mist flow processing module includes a mist flow splitting device and a mist flow processing device connected to the mist flow splitting device. The mist flow splitting device will split the atomized airflow and make the first atomized airflow and the second atomized airflow obtained by the split flow respectively. Output to the first channel and the second channel, wherein the output of the first channel is the first atomizing airflow, and the output of the second channel is the second atomizing airflow.

Step S13, control the spraying module to spray the first atomized air flow, and simultaneously control the air source module to provide negative pressure to the first air path module, so that the second atomized air flow passes through the first air path The module outputs to the air supply module.

Wherein, the first channel is connected to the spraying module, the first atomized airflow is output to the spraying module through the first channel, and the spraying of the first atomized airflow is completed through the spraying module. At the same time, the second atomized air flow is output to the mist flow treatment device through the second channel for pretreatment, and then sent to the first air path module, wherein the mist flow treatment device can have functions such as drying, filtration, recovery, and impurity removal. The mist flow processing device that pre-processes the material rotation of the preset liquid.

In addition, the first gas path module includes a first-stage pressure valve, a first-stage pressure tank, a first-stage pressure valve, and a first-stage regulator valve that are connected in sequence, and the first-stage pressure valve is connected to the first-stage negative pressure The air source, the first and second stage regulating valve is connected to the mist flow processing module, and the negative pressure is provided by the first stage negative pressure air source, so that the second atomizing air flow passes through the first and second stage regulating valve, the first and second stage pressure valve, The first-stage pressure tank and the first-stage pressure valve are output to the first-stage negative pressure air source, wherein the first-stage pressure valve is arranged in the flow direction of the airflow, and is close to the upstream of the first-stage negative pressure air source, and controls the air flow. source pressure, the first-stage pressure tank is arranged between the first-stage pressure valve and the first-stage pressure valve, and the second atomization gas flow is introduced into the first-stage pressure tank, which acts as a buffer to stabilize the second-stage pressure tank. The air pressure of the second atomization air flow can accurately and stably control the air pressure of the first air path module through the settings of the first stage pressure valve, the first stage pressure tank and the first stage pressure valve, so as not to affect the first stage pressure valve. The stability of the air pressure of the first atomizing air flow in the channel improves the spraying effect of the first atomizing air flow. It is avoided that the air pressure of the first air path module is unstable to cause the air pressure of the first atomizing airflow to be unstable, which affects the spraying effect. In addition, the setting of the first and second level regulating valve is used to adjust and control the gas flow of the second atomizing gas flow in the first gas path module. Precise and stable control of gas flow.

It should be noted that the control method further includes: controlling the air source module to provide positive pressure to the third air path module, so that a second preset air flow is output to the spraying device through the third air path module.

Specifically, the third air circuit module is used to increase the spraying stability of the spraying module, the input end of the third air circuit module is connected to the primary positive pressure air source, the output end of the third air circuit module is connected to the spraying module, and the spraying module is used for Spraying the first atomized airflow, the spraying module includes a nozzle, the first atomized airflow is sprayed out through the nozzle, and the third air path module includes a third primary pressure valve connected to the primary positive pressure air source and a third primary pressure valve. The valve-connected third-level monitor, wherein the third-level pressure valve is used to control the total air pressure of the entire third air path module, and the third-level monitor is used to detect the flow rate of the second preset airflow in real time, through a The first-stage positive pressure air source provides positive pressure, and the second preset air flow is delivered to the spraying module through the third first-stage pressure valve and the third-stage monitor, so that the first atomizing air flow and the second preset air flow intersect into the spraying module , so that the first atomizing airflow can be sprayed more accurately and stably, so as to increase the spraying stability of the first atomizing airflow. The spraying is more precise and stable. The three independent air flow control modules of the second air path module, the first air path module and the third air path module reduce the interference between the air paths and make the spraying more stable and precise.

Compared with the prior art, the pneumatic atomization spraying method provided by this embodiment has the beneficial effect that: the pneumatic atomization spraying method provided by the present invention, specifically, controls the pneumatic module air source module to provide positive pressure to the second an air circuit module, so that the second air circuit module outputs the first preset airflow to the atomization module; based on the first preset airflow, the atomization module is controlled to atomize the preset liquid and output the atomized airflow to the atomization processing module , without ultrasonic atomization, through the control of the flow and pressure of the first preset airflow, the preset liquids of different viscosities and concentrations can be atomized and adjusted to the best atomization effect. Ultrasonic atomization has high requirements on the concentration and viscosity of the material, which makes it difficult to atomize liquids with excessive concentration or viscosity; the atomized airflow is split through the mist flow processing module to output the first atomized airflow and The second atomizing air flow; control the spraying module to spray the first atomizing air flow, and at the same time control the air source module to provide negative pressure to the first air path module, so that the second atomizing air flow is output to the air source through the first air path module The module, through the independent airflow control of the second air path module and the first air path module, reduces the interference of the second atomizing air flow to the first atomizing air flow, improves the stability of the first atomizing air flow, so that the first atomizing air flow is stable. The spraying of the first atomizing air flow is more accurate and stable, and the adjustment of the pressure and flow of the second air path module and the first air path module further reduces the interference of the second atomizing air flow on the first atomizing air flow, and improves the first atomizing air flow. The accuracy and stability of air spraying, the control method is simple, and the accuracy and stability of the first atomized air spraying are effectively improved. Thus, the technical problems of difficult atomization of liquids with excessive concentration or excessive viscosity and unstable air volume control are solved.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the patent of the present invention. It should be pointed out that for those skilled in the art, without departing from the concept of the present invention, several modifications and improvements can be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims (10)

1. A pneumatic atomizing spray system, comprising:

the device comprises an air source module, a second air circuit module, a first air circuit module, an atomization module, a mist flow processing module and a spraying module;

the air source module is respectively connected with the second air path module and the first air path module, positive pressure is provided for the second air path module through the air source module, and a first preset air flow is output to the atomization module through the second air path module;

the output of atomizing module is connected fog flows processing module, fog flows processing module's output is connected respectively spraying module and first air route module, the atomizing module passes through first predetermined air current atomizes to predetermineeing liquid and arrive with output atomizing air current fog flows processing module, and passes through fog flows processing module is right atomizing air current carries out the reposition of redundant personnel to respectively export first atomizing air current with second atomizing air current, wherein, first atomizing air current is through spraying module blowout, second atomizing air current passes through air supply module to first air route module provides the negative pressure, so that second atomizing air current flows through first air route module exports to air supply module.

2. The pneumatic atomizing spraying system of claim 1, characterized in that first gas circuit module includes first one-level pressure valve, first two-level pressure jar, first two-level pressure valve and the first second level of connecting gradually and transfers the valve, first one-level pressure valve is connected the air supply module, first two-level pressure valve is connected the fog flow processing module, through the air supply module provides the negative pressure, so that second atomizing air current loops through first two-level pressure valve first two-level pressure jar and first one-level pressure valve export extremely the air supply module.

3. The pneumatic atomizing spraying system of claim 2, characterized in that, second gas circuit module is including connecting the second one-level pressure valve of air supply module and with the second level accent valve that the second one-level pressure valve is connected, the second level accent valve is connected the atomizing module, through the air supply module provides the malleation, so that first predetermined air current loops through the second one-level pressure valve and the second level accent valve is exported to the atomizing module.

4. The pneumatic atomizing spray system of claim 1, wherein said air source module includes a primary negative pressure air source and a primary positive pressure air source, said primary negative pressure air source being connected with said first air path module for providing negative pressure to said first air path module, said primary positive pressure air source being connected with said second air path module for providing positive pressure to said second air path module.

5. The pneumatic atomization spraying system according to claim 3, wherein the mist flow treatment module comprises a mist flow dividing device and a mist flow treatment device connected to the mist flow dividing device, an input end of the mist flow dividing device is connected to the atomization module, the mist flow dividing device divides the atomization airflow and enables the divided first atomization airflow and second atomization airflow to be respectively output to a first channel and a second channel, the first atomization airflow is output to the spraying module through the first channel, and the second atomization airflow is output to the first air path module through the second channel.

6. The pneumatic atomizing spraying system of claim 5, wherein an output end of the mist flow processing device is connected with the first secondary regulating valve, an input end of the mist flow processing device is connected with the second channel, and the second atomized air flow is output to the mist flow processing device through the second channel, is pretreated, and is then conveyed to the first air path module.

7. The pneumatic atomizing spraying system of claim 4, wherein the pneumatic atomizing spraying system further comprises a third gas circuit module, the third gas circuit module comprises a third first-level pressure valve connected with the first-level positive pressure gas source and a third second-level monitor connected with the third first-level pressure valve, an output end of the third second-level monitor is connected with the spraying module, positive pressure is provided through the first-level positive pressure gas source, and a second preset gas flow is output to the spraying module through the third first-level pressure valve and the third second-level monitor.

8. The pneumatic atomizing spray system of claim 6, wherein the second air circuit module further comprises a second secondary monitor, the first air circuit module further comprises a first secondary monitor, and the second secondary monitor and the first secondary monitor are respectively configured to measure the flow rates of the first preset air flow and the second atomized air flow.

9. A pneumatic atomization spray coating method, which is implemented by using the pneumatic atomization spray coating system according to any one of claims 1 to 8, and which comprises:

the air source module is controlled to provide positive pressure to the second air path module so that the second air path module outputs a first preset air flow to the atomization module;

based on the first preset air flow, controlling the atomization module to atomize the preset liquid and outputting the atomized air flow to the fog flow processing module;

the atomized air flow is subjected to shunting treatment through the atomized air flow treatment module so as to output a first atomized air flow and a second atomized air flow respectively;

and controlling a spraying module to spray the first atomized air flow, and simultaneously controlling an air source module to provide negative pressure to a first air path module so that the second atomized air flow passes through the first air path module and is output to the air source module.

10. A pneumatic atomizing spray process as set forth in claim 9, wherein said control method further includes:

and controlling the air source module to provide positive pressure to the third air path module so as to enable a second preset air flow to pass through the third air path module and be output to the spraying device.

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