CN115228643B - Pneumatic atomization spraying method and system - Google Patents
Pneumatic atomization spraying method and system Download PDFInfo
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- CN115228643B CN115228643B CN202211075108.8A CN202211075108A CN115228643B CN 115228643 B CN115228643 B CN 115228643B CN 202211075108 A CN202211075108 A CN 202211075108A CN 115228643 B CN115228643 B CN 115228643B
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- 238000000889 atomisation Methods 0.000 title claims abstract description 108
- 238000005507 spraying Methods 0.000 title claims abstract description 106
- 239000003595 mist Substances 0.000 claims abstract description 95
- 239000007788 liquid Substances 0.000 claims abstract description 50
- 230000001105 regulatory effect Effects 0.000 claims description 42
- 239000007921 spray Substances 0.000 claims description 34
- 230000001276 controlling effect Effects 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 19
- 239000000463 material Substances 0.000 description 16
- 238000005111 flow chemistry technique Methods 0.000 description 12
- 239000000443 aerosol Substances 0.000 description 9
- 238000001914 filtration Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
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Abstract
The invention provides a pneumatic atomization spraying method and a pneumatic atomization spraying system, which relate to the technical field of spraying, wherein the pneumatic atomization spraying system comprises the following components: the spraying device comprises an air source module, a second air path module, a first air path module, an atomization module, a mist flow treatment 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 for the second air path module through the air source module so as to output a first preset air flow to the atomization module; the atomizing module is connected with the mist flow treatment module, the mist flow treatment module is respectively connected with the spraying module and the first air path module, the atomizing module atomizes preset liquid through first preset air flow to output atomized air flow, and the atomized air flow is split-flow treated through the mist flow treatment 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 overlarge viscosity and unstable gas quantity control in the prior art.
Description
Technical Field
The invention relates to the technical field of spraying, in particular to a pneumatic atomization spraying method and system.
Background
The traditional aerosol spraying adopts an ultrasonic atomization mode, so that the method has the characteristics of convenient control and good stability, has higher application rate in high-definition material spraying, has higher requirements on the concentration, viscosity and the like of the material by ultrasonic atomization, and limits the application field of the aerosol spraying. In order to enhance the applicability of aerosol spraying and widen the application range, the problem that ink cannot be atomized due to overlarge material concentration and overlarge viscosity can be solved by adopting a pneumatic atomization mode.
However, the existing pneumatic atomization aerosol spraying technology still has the technical defects of unstable mist flow, poor air quantity control and unquantified control process in the atomization process.
Therefore, the existing spraying system generally has the technical problems of difficult atomization of liquid with overlarge concentration or overlarge viscosity and unstable gas quantity control.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a pneumatic atomization spraying method and a pneumatic atomization spraying system, which aim to solve the technical problems of difficult atomization of liquid with overlarge concentration or overlarge viscosity and unstable gas quantity control in the prior art.
An aspect of the present invention is to provide a pneumatic atomizing spray system, comprising:
The spraying device comprises an air source module, a second air path module, a first air path module, an atomization module, a mist flow treatment 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 for the second air path module through the air source module so as to output a first preset air flow to the atomization module through the second air path module;
the output end of the atomizing module is connected with the mist flow treatment module, the output end of the mist flow treatment module is respectively connected with the spraying module and the first air path module, the atomizing module atomizes preset liquid through first preset air flow to output atomized air flow to the mist flow treatment module, and the atomized air flow is split through the mist flow treatment module to output first atomized air flow and second atomized air flow respectively, wherein the first atomized air flow is sprayed out through the spraying module, the second atomized air flow is provided with negative pressure through the air source module to the first air path module, and the second atomized air flow is output to the air source module through the first air path module.
Compared with the prior art, the invention has the beneficial effects that: the pneumatic atomization spraying system comprises an air source module, a second air path module, a first air path module, an atomization module, a mist flow treatment module and a spraying module, wherein 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 end of the atomizing module is connected with the mist flow processing module, the output end of the mist flow processing module is respectively connected with the spraying module and the first air path module, the atomizing module atomizes preset liquid to output atomized air flow to the mist flow processing module through first preset air flow, ultrasonic atomization is not needed, the preset liquid with different viscosities and concentrations can be atomized through the control of the first preset air flow and pressure, the optimal atomization effect can be adjusted, the application range is wide, the requirements of ultrasonic atomization on the concentration, viscosity and the like of materials are avoided, the liquid with overlarge concentration or overlarge viscosity is caused, the atomized air flow is subjected to split treatment through the mist flow processing module, the first atomized air flow and the second atomized air flow are output respectively, the first atomized air flow is sprayed through the spraying module, the second atomized air flow is subjected to negative pressure through the air source module, the second atomized air flow is output to the air source module, the second atomized air flow is controlled through the independent air flow of the second air path module, the second atomized air flow is prevented from interfering with the first atomized air flow, the stability of the first atomized air flow is improved, the first atomized air flow is more accurate, the first atomized air flow is more stable, and the first air flow is more stable, and the system is more stable, and the cost of the first atomized air flow is more stable, and the system is stable. Thereby solving the technical problems of difficult atomization of liquid with overlarge concentration or overlarge viscosity and unstable gas quantity control.
According to an aspect of the above technical solution, the first air path module includes a first primary pressure valve, a first secondary pressure tank, a first secondary pressure valve and a first secondary pressure regulating valve which are sequentially connected, the first primary pressure valve is connected with the air source module, the first secondary pressure regulating valve is connected with the mist flow processing module, and negative pressure is provided by the air source module, so that the second atomized air flow sequentially passes through the first secondary pressure regulating valve, the first secondary pressure tank and the first primary pressure valve and is 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, where the second secondary pressure valve is connected to the atomizing module, and positive pressure is provided by the air source module, so that the first preset air flow sequentially passes through the second primary pressure valve and the second secondary pressure valve and is output to the atomizing 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, the primary negative pressure air source is connected with the first air path module, so as to provide negative pressure for the first air path module, and the primary positive pressure air source is connected with the second air path module, so as to provide positive pressure for the second air path module.
According to an aspect of the above technical solution, the mist flow treatment module includes a mist flow splitting device and a mist flow treatment device connected to the mist flow splitting device, an input end of the mist flow splitting device is connected to the mist flow module, the mist flow splitting device performs splitting treatment on the mist flow and outputs a first mist flow and a second mist flow obtained by splitting to a first channel and a second channel respectively, the first mist flow is output to the spraying module through the first channel, and the second mist flow is output to the first air path module through the second channel.
According to an aspect of the above technical solution, an output end of the mist flow treatment device is connected to the first secondary regulating valve, an input end of the mist flow treatment device is connected to the second channel, and the second atomized air flow is output to the mist flow treatment device through the second channel for pretreatment and then is sent to the first air path module.
According to an aspect of the above technical solution, the pneumatic atomized spraying system further includes a third air path module, the third air path module includes a third primary pressure valve connected with the primary positive pressure air source, and a third secondary monitor connected with the third primary pressure valve, an output end of the third secondary monitor is connected with the spraying module, positive pressure is provided by the primary positive pressure air source, and a second preset air flow is output to the spraying module through the third primary pressure valve and the third secondary monitor.
According to an aspect of the foregoing technical solution, the second air path module further includes a second secondary monitor, and the first air path module further includes a first secondary monitor, where the second secondary monitor and the first secondary monitor are respectively configured to measure flow rates of the first preset air flow and the second atomized air flow.
Another aspect of the present invention is to provide a pneumatic atomized spray method, which is implemented by using any one of the pneumatic atomized spray systems, and the method includes:
the control air source module provides positive pressure for 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 preset liquid and outputting atomized air flow to a mist flow treatment module;
the atomized air flow is subjected to split flow treatment through the mist flow treatment module so as to output a first atomized air flow and a second atomized air flow respectively;
and controlling the spraying module to spray the first atomized air flow, and simultaneously controlling the air source module to provide negative pressure for the 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.
According to an aspect of the foregoing technical solution, the method further includes:
and controlling the air source module to provide positive pressure for the third air path module so that a second preset air flow passes through the third air path module and is output to the spraying device.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a block diagram of a pneumatic atomizing spray system in accordance with a first embodiment of the present invention;
FIG. 2 is a schematic diagram of a pneumatic atomizing spray system in accordance with a first embodiment of the present invention;
FIG. 3 is a schematic illustration of a first embodiment of a pneumatic atomizing spray system according to the present disclosure;
FIG. 4 is a schematic diagram of a pneumatic atomizing spray system in accordance with a second embodiment of the present invention;
FIG. 5 is a schematic diagram of a pneumatic atomizing spray system in accordance with a third embodiment of the present invention;
FIG. 6 is a flow chart of a pneumatic atomizing spray method in a fourth embodiment of the present invention;
description of the drawings element symbols:
the spray coating device comprises a gas source module 100, a second gas path module 200, a first gas path module 300, an atomization module 400, a mist flow treatment module 500, a spray coating module 600 and a third gas path module 700.
Detailed Description
In order to make the objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. Several embodiments of the invention are presented in the figures. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "mounted" on 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 the like are used herein for descriptive purposes only and not to indicate or imply that the apparatus or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
In the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Example 1
Referring to fig. 1-3, a pneumatic atomization spraying system provided by the present invention includes a gas source module 100, a second gas path module 200, a first gas path module 300, an atomization module 400, a mist flow treatment module 500, and a spraying module 600. The air source module 100 is configured 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 and a primary positive pressure air source, the primary negative pressure air source is connected to the first air path module 300 to provide negative pressure to the first air path module 300 to stably output the second atomized air flow to the primary negative pressure air source through the first air path module 300, and the primary positive pressure air source is connected to the second air path module 200 to provide positive pressure to the second air path module 200 to output the first preset air flow to the atomized module 400 through the second air path module 200.
The second air path 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, wherein an input end of the second primary pressure valve is connected to the primary positive pressure air source, and an output end of the second secondary pressure regulating valve is connected to the atomizing module 400. Positive pressure is provided by the air source module 100, so that the first preset air flow sequentially passes through the second primary pressure valve and the second secondary pressure regulating valve to be output to the atomization module 400, and the second primary pressure valve controls the total air pressure of the whole second air path module 200, so that the stability of the first preset air flow of the second air path module 200 is maintained. In addition, the second gas circuit module 200 further includes a second level monitor, in this embodiment, the second level monitor is a second digital flowmeter, the second digital flowmeter is disposed between the second level valve and the atomizing module 400, and the flow value of the first preset gas flow in the second gas circuit module 200 is detected in real time through the second digital flowmeter, so that the flow of the first preset gas flow of the second gas circuit module 200 is adjusted by matching with the second level valve to complete accurate and stable control of the first preset gas flow, so that the accurate and stable flow and pressure of the first preset gas flow are conveyed to the atomizing module 400, and the atomizing effect of the atomizing module 400 is improved. The second primary pressure valve and the second secondary pressure valve have the functions of continuous adjustment and locking so as to improve the stability of the flow of the first preset air flow, wherein the second primary pressure valve comprises, but is not limited to, a positive pressure reducing valve, a positive pressure stabilizing valve, a flow valve, a flowmeter, a numerical control gas flowmeter and the like.
Further, the atomization module 400 is configured to atomize a preset liquid through a first preset air flow, the atomization module 400 includes an atomization device and a preset liquid stored in the atomization device, in this embodiment, the preset liquid may be aerosol, an air outlet pipe and an air inlet pipe inserted into the preset liquid are disposed on the atomization device, an air inlet of the air inlet pipe is inserted into the preset liquid stored in the atomization device, an air outlet of the air outlet pipe is connected with a mist flow splitting device, the first preset air flow is output into the preset liquid through the second air path module 200 and the air inlet pipe, the atomization device atomizes the preset liquid according to a flow and a pressure of the first preset air flow to form an atomized air flow, and an atomization effect of the atomized air flow depends on the flow and the pressure of the first preset air flow. The atomizing device can be a collision atomizer, and the collision atomizer atomizes preset liquid by adopting an aerosol atomization method. When the first preset air flow enters from the air inlet, the pressure is reduced so that the liquid rises after passing through the pipeline. The preset liquid is then broken up and atomized by the high-speed first preset air flow to generate droplets with a large range of particle sizes. The atomized liquid is impacted on the wall of the pot, smaller liquid drops are generated and are carried out from the air outlet by the first preset air flow to form atomized air flow, and the atomized liquid can be atomized by adjusting the pressure and flow of the first preset air flow of the second primary pressure valve and the second secondary pressure valve, so that the atomized liquid can be widely applied to materials with different concentrations and viscosities, and the problems that ultrasonic atomization has high requirements on the concentration, viscosity and the like of the materials, and the liquid with overlarge concentration or overlarge viscosity is difficult to atomize are solved. Meanwhile, the optimal atomization effect of the atomization air flow can be achieved by adjusting the pressure and the flow of the first preset air flow of the second primary pressure valve and the second secondary pressure valve, so that the accurate and stable atomization control effect is achieved, and the atomization air flow control is improved.
In addition, the air outlet of the atomizing device outputs an atomized air flow to the mist flow treatment module 500, and the mist flow treatment device is used for carrying out split treatment on the atomized air flow. The mist flow treatment module 500 includes a mist flow splitting device and a mist flow treatment device connected with the mist flow splitting device, wherein an input end of the mist flow splitting device is connected with an air outlet pipe of the atomizing device, and because the flow rate of the atomized air is very large, the flow rate of the atomized air required by the spraying module 600 is very small, the atomized air needs to be split into a large-flux branch flow and a small-flux branch flow, the small-flux branch flow enters the spraying module 600 to finish spraying, the mist flow splitting device splits the atomized air and enables a first atomized air and a second atomized air obtained by splitting to be respectively output to a first channel and a second channel, the first channel outputs the first atomized air, namely the small-flux branch flow, the first channel is connected with the spraying module 600, and the first atomized air is output to the spraying module 600 through the first channel, so that the spraying of the first atomized air is finished through the spraying module 600.
Further, the output end of the mist flow treatment device is connected with the first secondary regulating valve, the input end of the mist flow treatment device is connected with the second channel, the second atomized airflow is a large flux tributary, and after being output to the mist flow treatment device for pretreatment through the second channel, the second atomized airflow is output to the primary negative pressure air source through the first air path module 300, wherein the mist flow treatment device can have the functions of drying, filtering, recycling, impurity removal and the like, and the mist flow treatment device which needs pretreatment can be selected according to the material of preset liquid. For example, the filtering function of the mist flow treatment device can be used for removing large particulate matters contained in the second atomized air flow, so that the large particulate matters in the second atomized air flow are prevented from being input into the second air path module 200, when the first-stage negative pressure air source discharges the second atomized air flow through the air pump, the air pump is blocked by the large particulate matters, the second atomized air flow cannot be discharged, the spraying of the first atomized air flow is affected, or the preset liquid in the second atomized air flow is recycled through the recycling function of the mist flow treatment device, the cost is saved, and the waste of the preset liquid is avoided.
The second atomized air flow is output to the first air path module 300 after pretreatment, and the first air path module 300 is used for stably outputting the pretreated second atomized air flow to the first-stage negative pressure air source. The first air path module 300 includes a first primary pressure valve, a first secondary pressure tank, a first secondary pressure valve and a first secondary pressure regulating valve that are sequentially connected, the first primary pressure valve is connected with a primary negative pressure air source, the first secondary pressure regulating valve is connected with the mist flow processing module 500, negative pressure is provided for through the primary negative pressure air source, so that the second mist flow sequentially passes through the first secondary pressure regulating valve, the first secondary pressure tank and the first primary pressure valve to be output to the primary negative pressure air source, wherein the first primary pressure valve is arranged at the upstream of the primary negative pressure air source, the air source pressure is controlled, the first secondary pressure tank is arranged between the first primary pressure valve and the first secondary pressure valve, the second mist flow is introduced into the first secondary pressure tank, a buffering function is performed to stabilize the air pressure of the second mist flow, the volume of the first secondary pressure tank is more than or equal to 0.5L, and the number of the first secondary pressure tank is at least 1. Through the setting of first level pressure valve, first second level pressure jar, first second level pressure valve, can be accurate and stable the atmospheric pressure of control first air circuit module 300 to do not influence the stability of the atmospheric pressure of first atomizing air current in the first passageway, thereby improve the spraying effect of first atomizing air current. The unstable air pressure of the first atomization air flow caused by the unstable air pressure of the first air path module 300 is avoided, and the spraying effect is affected. In addition, the first secondary regulating valve is used for regulating and controlling the gas flow of the second atomized gas flow in the first gas path module 300, and the second atomized gas flow, namely the large-flux atomized gas flow, is accurately and stably controlled through the selection and arrangement of the elements of the second gas path module 200. The first primary pressure valve, the first secondary pressure valve and the first secondary pressure regulating valve have the functions of continuous regulation and locking so as to improve the flow stability of the second atomized air flow, and the first primary pressure valve and the first secondary pressure valve comprise, but are not limited to, a positive pressure reducing valve, a positive pressure stabilizing valve, a flow valve, a flowmeter, a numerical control gas flowmeter and the like.
In addition, the second gas circuit module 200 further includes a first second monitor, in this embodiment, the first second monitor is a first digital flowmeter, the first digital flowmeter is disposed between the first second regulating valve and the mist flow processing device, the first digital flowmeter is used for detecting the flow of the second atomized air flow in real time, and the second atomizing air flow of the first gas circuit module 300 is regulated by matching with the first second regulating valve to complete the accurate stable control of the second atomized air flow, so that the accurate stable flow of the second atomized air flow is output to the first-stage negative pressure air source, and the flow of the first atomized air flow in the first channel is not affected, thereby improving the spraying effect of the first atomized air flow.
In addition, the pneumatic atomized spraying system further comprises a third air path module 700, the third air path module 700 is used for increasing the spraying stability of the spraying module 600, the input end of the third air path module 700 is connected with a primary positive pressure air source, the output end of the third air path module 700 is connected with the spraying module 600, the spraying module 600 is used for spraying a first atomized air flow, the spraying module 600 comprises a nozzle, the first atomized air flow is sprayed out through the nozzle, the third air path module 700 comprises a third primary pressure valve connected with the primary positive pressure air source and a third secondary monitor connected with the third primary pressure valve, in the embodiment, the third secondary monitor is a third digital flowmeter, the third primary pressure valve is used for controlling the total air pressure of the whole third air path module 700, the third digital flowmeter is used for detecting the flow of a second preset air flow in real time, the positive pressure is provided through the primary positive pressure air source, the second preset air flow is conveyed 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 are intersected and enter the spraying module 600, the first atomized air flow can be sprayed more accurately and stably, the spraying stability of the first atomized air flow is improved, the flow and the air pressure of the second preset air flow are controlled accurately, the spraying of the first atomized air flow is more accurate and stable, the third primary pressure valve has the functions of continuous adjustment and locking, the flow stability of the second preset air flow is improved, and the third primary pressure valve comprises, but is not limited to, a positive pressure reducing valve, a positive pressure stabilizing valve, a flow valve, a flowmeter, a digital control air flowmeter and the like. Through the three independent air flow control modules of the second air circuit module 200, the first air circuit module 300 and the third air circuit module 700, the interference among air circuits is reduced, and the spraying is more stable and accurate.
As a specific example, in the present embodiment, the optional elements of the first air circuit module 300 are a first-stage pressure valve, a first second-stage pressure tank, a first second-stage pressure valve, a first second-stage pressure monitor, a first second-stage monitor, and a first second-stage pressure valve, respectively. In the second atomizing airflow flowing direction, the arrangement sequence of each element is a digital flowmeter, a negative pressure flow valve, a negative pressure reducing valve, a 5L pressure tank and a negative pressure reducing valve in sequence;
the optional elements of the second gas circuit module 200 are respectively a second primary pressure valve optional positive pressure reducing valve, a second secondary regulating valve optional positive pressure flow valve and a second secondary monitor optional digital flowmeter. In the first preset airflow flowing direction, the arrangement sequence of each element is a positive pressure reducing valve, a positive pressure flow valve and a digital flowmeter in sequence;
the optional elements of the third air circuit module 700 are a third primary pressure valve, a positive pressure reducing valve, a third secondary regulating valve, a third secondary monitor and a digital flowmeter respectively. And in the second preset airflow flowing direction, the arrangement sequence of each element is a positive pressure reducing valve and a digital flowmeter. The mist flow treatment module 500 comprises mist flow diversion, drying, filtering and recycling;
The aerosol mist flow generated by the pneumatic atomization system is precisely, stably and finely sprayed out through the spraying module 600 through 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.
Compared with the prior art, the pneumatic atomization spraying system provided by the embodiment has the beneficial effects that: the pneumatic atomization spraying system comprises an air source module, a second air path module, a first air path module, an atomization module, a mist flow treatment module and a spraying module, wherein 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 end of the atomizing module is connected with the mist flow processing module, the output end of the mist flow processing module is respectively connected with the spraying module and the first air path module, the atomizing module atomizes preset liquid to output atomized air flow to the mist flow processing module through first preset air flow, ultrasonic atomization is not needed, the preset liquid with different viscosities and concentrations can be atomized through the control of the first preset air flow and pressure, the optimal atomization effect can be adjusted, the application range is wide, the requirements of ultrasonic atomization on the concentration, viscosity and the like of materials are avoided, the liquid with overlarge concentration or overlarge viscosity is caused, the atomized air flow is subjected to split treatment through the mist flow processing module, the first atomized air flow and the second atomized air flow are output respectively, the first atomized air flow is sprayed through the spraying module, the second atomized air flow is subjected to negative pressure through the air source module, the second atomized air flow is output to the air source module, the second atomized air flow is controlled through the independent air flow of the second air path module, the second atomized air flow is prevented from interfering with the first atomized air flow, the stability of the first atomized air flow is improved, the first atomized air flow is more accurate, the first atomized air flow is more stable, and the first air flow is more stable, and the system is more stable, and the cost of the first atomized air flow is more stable, and the system is stable. Thereby solving the technical problems of difficult atomization of liquid with overlarge concentration or overlarge viscosity and unstable gas quantity control.
Example two
Referring to fig. 4, a pneumatic atomizer spray system according to a second embodiment of the present invention is shown, and the pneumatic atomizer spray system is different from the pneumatic atomizer spray system according to the first embodiment in that:
the first second-stage pressure tank is a 20L pressure tank, the second digital flowmeter is arranged between the second first-stage pressure valve and the second-stage pressure valve, the first digital flowmeter is arranged between the first second-stage pressure valve and the first second-stage pressure valve, the service life of the first digital flowmeter is prolonged, the second atomized air flow is prevented from being directly output to the first digital flowmeter, the sensitivity of the first digital flowmeter is reduced due to overlarge flow fluctuation or sudden rising and suddenly falling, abnormal flow detection is caused, a third second-stage pressure valve is arranged between the third first-stage pressure valve and the third digital flowmeter, the third second-stage pressure valve is used for controlling the flow of a second preset air flow of the third air circuit module 700, and the second preset air flow is accurately and stably controlled through the cooperation of the flow value of the second preset air flow detected in real time by the third digital flowmeter, so that the spraying of the first atomized air flow is accurately and stably controlled.
Specifically, in this embodiment, the optional components of the first air path module 300 are a first-stage pressure valve, a negative pressure reducing valve, a first-stage pressure tank, and a 20L pressure tank, the first secondary pressure valve is matched with a negative pressure reducing valve, the first secondary monitor is matched with a digital flowmeter, and the first secondary regulating valve is matched with a negative pressure flow valve. In the second atomizing airflow flowing direction, the arrangement sequence of each element is a negative pressure flow valve, a digital flowmeter, a negative pressure reducing valve, a 20L pressure tank and a negative pressure reducing valve in sequence;
The optional elements of the second gas circuit module 200 are respectively a second primary pressure valve, a second secondary regulating valve, a positive pressure flow valve and a second secondary monitor, and the second secondary monitor is provided with a digital flowmeter. In the first preset airflow flowing direction, the arrangement sequence of each element is a positive pressure reducing valve, a digital flowmeter and a positive pressure flow valve in sequence;
the optional elements of the third air circuit module 700 are a third primary pressure valve, a positive pressure reducing valve, a third secondary regulating valve, a positive pressure flow valve and a third secondary monitor, respectively. In the second preset airflow flowing direction, the arrangement sequence of each element is a positive pressure reducing valve, a positive pressure flow valve and a digital flowmeter. The mist flow treatment module 500 comprises mist flow diversion, drying and filtering;
the aerosol mist flow generated by the pneumatic atomization system is precisely, stably and finely sprayed out through the spraying module 600 through 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.
Compared with the prior art, the pneumatic atomization spraying system provided by the embodiment has the beneficial effects that: the flow and the pressure of the first preset air flow can be controlled to atomize preset liquid with different viscosities and concentrations and can be adjusted to an optimal atomization effect, the application range is wide, the problem that the ultrasonic atomization has high requirements on the concentration, viscosity and the like of materials, so that the concentration is too high or the viscosity is too high is solved, the difficulty in atomization of the liquid is solved, the interference of the second atomized air flow to the first atomized air flow is reduced through independent air flow control of the second air circuit module and the first air circuit module, the stability of the first atomized air flow is improved, the pressure and the flow of the first atomized air flow are enabled to be more accurate and stable, the interference of the second atomized air flow to the first atomized air flow is further reduced, the accuracy and the stability of the first atomized air flow are improved, the whole system is simple in design and low in cost, the first digital flowmeter is arranged between the first two-stage pressure valve and the first two-stage regulating valve, the service life of the first digital flowmeter is prolonged, the third two-stage regulating valve is arranged between the third two-stage pressure valve and the third digital flowmeter, the third two-stage regulating valve is used for controlling the second preset air flow of the third digital flowmeter, the second atomized air flow is more accurate and stable, the first atomized air flow is difficult to be controlled through the accurate and stable, and the first air flow of the second atomized air flow is accurate and stable, and the first atomized air flow is difficult to be controlled, and the accurate and stable flow is stable, and the flow is difficult to control is accurate and stable, and the flow is accurate and stable.
Example III
Referring to fig. 5, a third embodiment of a pneumatic atomizer spray system according to the present invention is shown, which is different from the pneumatic atomizer spray system according to the first embodiment in that:
the first second-stage pressure tank is a 50L pressure tank, the second-stage monitor is arranged between the first second-stage pressure valve and the first second-stage pressure regulating valve, the service life of the second-stage monitor is prolonged, the second atomized air flow is prevented from being directly output to the second-stage monitor, the second-stage monitor sensitivity is reduced due to overlarge flow fluctuation or sudden rising and suddenly falling, abnormal flow detection and failure are caused, a third second-stage pressure regulating valve is arranged between the third first-stage pressure valve and the third second-stage monitor, the third second-stage pressure regulating valve is used for controlling the flow of the second preset air flow of the third air circuit module 700, and accurate and stable control of the second preset air flow is completed through the cooperation of the flow value of the second preset air flow detected in real time by the third second-stage pressure regulating valve.
As a specific example, in the present embodiment, the optional elements of the first air circuit module 300 are a first primary pressure valve, a first secondary pressure tank, a first secondary pressure valve, a first secondary monitor, and a first secondary regulating valve, respectively. In the second atomizing airflow flowing direction, the arrangement sequence of each element is a negative pressure (vacuum) flow valve, a digital flowmeter, a negative pressure (vacuum) reducing valve, a 50L pressure tank and a negative pressure (vacuum) reducing valve;
The optional elements of the second gas circuit module 200 are respectively a second primary pressure valve, a second secondary regulating valve, a positive pressure flow valve and a second secondary monitor, and the second secondary monitor is provided with a digital flowmeter. In the first preset airflow flowing direction, the arrangement sequence of each element is a positive pressure reducing valve, a positive pressure flow valve and a digital flowmeter in sequence;
the optional elements of the third air circuit module 700 are a third primary pressure valve, a positive pressure reducing valve, a third secondary regulating valve, a positive pressure flow valve and a third secondary monitor, respectively. In the second preset airflow flowing direction, the arrangement sequence of each element is a positive pressure reducing valve, a positive pressure flowmeter and a digital flowmeter. The mist flow treatment module 500 comprises mist flow diversion, drying, filtering and impurity removal;
the aerosol mist flow generated by the airflow atomization system is precisely, stably and finely sprayed out through the spraying module 600 through 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.
Compared with the prior art, the pneumatic atomization spraying system provided by the embodiment has the beneficial effects that: the flow and the pressure of the first preset air flow can be controlled to atomize preset liquid with different viscosities and concentrations and can be adjusted to an optimal atomization effect, the application range is wide, the problem that the ultrasonic atomization is difficult to atomize the liquid with overlarge concentration or overlarge viscosity due to higher requirements on the concentration, the viscosity and the like of materials is avoided, the interference of the second atomized air flow to the first atomized air flow is reduced through independent air flow control of the second air circuit module and the first air circuit module, the stability of the first atomized air flow is improved, the pressure and the flow of the first atomized air flow are enabled to be more accurate and stable, the interference of the second atomized air flow to the first atomized air flow is further reduced, the accuracy and the stability of the first atomized air flow are improved, the whole system is simple in design and low in cost, the second level monitor is arranged between the first second level pressure valve and the first second level pressure valve, the service life of the second level monitor is prolonged, the third level pressure valve and the third level monitor are arranged, the third level pressure valve is used for controlling the third level pressure valve to control the second air flow to be more accurate and the second level pressure valve, the second air flow is more accurate and stable, the problem of the second atomized air flow is solved, the second air flow is difficult to be more accurate and stable, and the problem of the second atomized air flow is difficult to be controlled through the second level air flow accurate and stable.
Example IV
Referring to fig. 6, a fourth embodiment of the present invention provides a pneumatic atomization spraying method, wherein the control method includes steps S10-S13:
step S10, controlling an air source module to provide positive pressure for a second air path module so that the second air path module outputs a first preset air flow to an atomization module;
the air source module is used for providing air pressure for the second air path module and the first air path module, and comprises a primary negative pressure air source and a primary positive pressure air source, wherein the primary positive pressure air source is connected with the second air path module and used for providing positive pressure for the second air path module so that the second air path module outputs air flow to the atomization module.
The second gas circuit module comprises a second primary pressure valve and a second secondary regulating valve connected with the second primary pressure valve, the input end of the second primary pressure valve is connected with a primary positive pressure gas source, and the output end of the second secondary regulating valve is connected with the atomizing module. The first air flow is output to the atomization module through the first-stage positive pressure air source and the second first-stage pressure valve and the second-stage pressure regulating valve in sequence, and the second first-stage pressure valve controls the total air pressure of the whole second air path module. In addition, the second gas circuit module further comprises a second-stage monitor, the flow value of the first preset gas flow in the second gas circuit module is detected in real time through the second-stage monitor, the flow of the first preset gas flow in the second gas circuit module is adjusted by the second-stage valve in a matching mode, accurate and stable control of the first preset gas flow is achieved, accurate and stable flow and pressure of the first preset gas flow are conveyed to the atomization module, and atomization effect of the atomization module is improved.
Step S11, based on the first preset air flow, controlling the atomization module to atomize preset liquid and outputting atomized air flow to a mist flow treatment module;
wherein, atomizing module includes atomizing device and locates the default liquid in the atomizing device, is equipped with the gas outlet on the atomizing device and inserts the air inlet in the default liquid, and first default air current is through second gas circuit module output to air inlet to contact default liquid, and atomizing device will be according to the flow and the pressure of first default air current, atomizes the default liquid and forms the atomizing air current, and the atomization effect of atomizing air current depends on the flow and the pressure of first default air current.
It should be noted that, through adjusting the pressure and the flow of the first preset air current of the second primary pressure valve and the second secondary pressure valve, preset liquids with different viscosities and concentrations can be atomized, and the ultrasonic atomization device can be widely applied to materials with different concentrations and viscosities, and avoid the difficulty in atomizing liquids with higher requirements on the concentration, the viscosity and the like of the materials, and too large concentration or too high viscosity by ultrasonic atomization. Meanwhile, the optimal atomization effect of the atomization air flow can be achieved by adjusting the pressure and the flow of the first preset air flow of the second primary pressure valve and the second secondary pressure valve, so that the accurate and stable atomization control effect is achieved, and the atomization air flow control is improved.
Step S12, the atomized air flow is split by the mist flow processing module so as to output a first atomized air flow and a second atomized air flow respectively;
the mist flow treatment device is used for carrying out split flow treatment on the atomized air flow. The fog flow treatment module comprises a fog flow diversion device and a fog flow treatment device connected with the fog flow diversion device, the fog flow diversion device is used for diverting the atomized air flow and enabling the first atomized air flow and the second atomized air flow which are obtained by diversion to be respectively output to a first channel and a second channel, wherein the output of the first channel is the first atomized air flow, and the output of the second channel is the second atomized air flow.
And S13, controlling the spraying module to spray the first atomized air flow, and simultaneously controlling the air source module to provide negative pressure for the 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.
The first channel is connected with the spraying module, the first atomization airflow is output to the spraying module through the first channel, and spraying of the first atomization airflow is completed through the spraying module. Meanwhile, the second atomized air flow is output to the mist flow treatment device through the second channel for pretreatment and then is conveyed to the first air path module, wherein the mist flow treatment device can have the functions of drying, filtering, recycling, impurity removal and the like, and rotates the mist flow treatment device to be pretreated according to the material of preset liquid.
In addition, first air circuit module is including the first one-level pressure valve that connects gradually, first second level pressure jar, first second level pressure valve and first second level pressure regulating valve, first one-level pressure valve connects the one-level negative pressure air supply, first second level pressure regulating valve connects fog flow treatment module, provide the negative pressure through one-level negative pressure air supply, so that the second atomizing air current loops through first second level pressure regulating valve, first second level pressure jar and first level pressure valve output to one-level negative pressure air supply, wherein, this first level pressure valve sets up in the air current flow direction, and be close to the upstream of one-level negative pressure air supply, control air supply pressure, first second level pressure jar sets up between first level pressure valve and first second level pressure valve, with second atomizing air current flow in first second level pressure jar, play the cushioning effect, through first level pressure valve, first second level pressure jar, the setting of first second level pressure valve, can be accurate and stable control the atmospheric pressure of first air circuit module, thereby the stability of first atomizing air current in the first passageway, thereby improve first atomizing air current's of spraying effect. The air pressure instability of the first atomization air flow caused by the air pressure instability of the first air path module is avoided, and the spraying effect is influenced. In addition, the first secondary regulating valve is used for regulating and controlling the gas flow of the second atomization gas flow in the first gas path module, and the accurate and stable control of the second atomization gas flow is realized through the selection and the arrangement of each element of the second gas path module.
It should be noted that, the control method further includes: and controlling the air source module to provide positive pressure for the third air path module so that a second preset air flow passes through the third air path module and is output to the spraying device.
Specifically, the third gas circuit module is used for increasing the spraying stability of spraying module, the one-level positive pressure air supply is connected to the input of third gas circuit module, the spraying module is connected to the output of third gas circuit module, the spraying module is used for spraying first atomizing air current, the spraying module includes the nozzle, first atomizing air current passes through the nozzle blowout, third gas circuit module includes the third one-level pressure valve and the third second grade watch-dog of being connected with the third one-level pressure valve that are connected with one-level positive pressure air supply, wherein, the total atmospheric pressure of whole third gas circuit module is used for controlling to the third one-level pressure valve, the flow of second default air current is used for real-time detection, provide the malleation through one-level positive pressure air supply, second default air current passes through third one-level pressure valve and third second grade watch-dog and carries to the spraying module, thereby make first atomizing air current and second default air current meet and get into the spraying module, thereby make the spraying that first atomizing air current can be more accurate and stable, with the spraying stability of increasing first atomizing air current, through accurate control flow and atmospheric pressure of second air current, so that the spraying of first atomizing air current is more accurate and stable, the spraying of the second gas circuit module through the second gas circuit, the air circuit module has been reduced between the independent air circuit, the spraying module has been controlled.
Compared with the prior art, the pneumatic atomization spraying method provided by the embodiment has the beneficial effects that: the pneumatic atomization spraying method provided by the invention comprises the following steps that a pneumatic module air source module is controlled to provide positive pressure for a second air channel module, so that the second air channel module outputs a first preset air flow to an atomization module; based on the first preset air flow, the atomization module is controlled to atomize preset liquid and output the atomized air flow to the mist flow treatment module, ultrasonic atomization is not needed, the preset liquid with different viscosities and concentrations can be atomized through the control of the flow and the pressure of the first preset air flow, the optimal atomization effect can be adjusted, the application range is wide, and the difficulty in atomizing the liquid with overlarge concentration or overlarge viscosity caused by higher requirements of ultrasonic atomization on the concentration, the viscosity and the like of the material is avoided; the atomized air flow is split by a mist flow treatment module so as to output a first atomized air flow and a second atomized air flow respectively; the control spraying module sprays the first atomization air flow, the air source module is controlled to provide negative pressure for the first air path module, so that the second atomization air flow is output to the air source module through the first air path module, the interference of the second atomization air flow to the first atomization air flow is reduced through independent air flow control of the second air path module and the first air path module, the stability of the first atomization air flow is improved, the first atomization air flow spraying is more accurate and stable, the pressure and flow of the second air path module and the first air path module are regulated, the interference of the second atomization air flow to the first atomization air flow is further reduced, the accuracy and stability of the first atomization air flow spraying are improved, the control method is simple, and the accuracy and stability of the first atomization air flow spraying are effectively improved. Thereby solving the technical problems of difficult atomization of liquid with overlarge concentration or overlarge viscosity and unstable gas quantity control.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example 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 embodiments or examples. 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 foregoing examples illustrate only a few embodiments of the invention, and are described in detail, but are not to be construed as limiting the scope of the invention. It should be noted that it is possible for those skilled in the art to make several variations and modifications without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. A pneumatic atomizing spray system, the pneumatic atomizing spray system comprising:
The spraying device comprises an air source module, a second air path module, a first air path module, an atomization module, a mist flow treatment 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 for the second air path module through the air source module so as to output a first preset air flow to the atomization module through the second air path module;
the output end of the atomizing module is connected with the mist flow treatment module, the output end of the mist flow treatment module is respectively connected with the spraying module and the first air path module, the atomizing module atomizes preset liquid through a first preset air flow to output atomized air flow to the mist flow treatment module, and the atomized air flow is split through the mist flow treatment module to output first atomized air flow and second atomized air flow respectively, wherein the first atomized air flow is sprayed out through the spraying module, the second atomized air flow is supplied with negative pressure through the air source module to the first air path module, so that the second atomized air flow is output to the air source module through the first air path module.
2. The pneumatic atomizing spray system of claim 1, wherein the first air path module includes a first primary pressure valve, a first secondary pressure tank, a first secondary pressure valve, and a first secondary pressure regulating valve connected in sequence, the first primary pressure valve is connected to the air source module, the first secondary pressure valve is connected to the mist stream processing module, and a negative pressure is provided by the air source module to cause the second atomizing air flow to be output to the air source module sequentially through the first secondary pressure valve, the first secondary pressure tank, and the first primary pressure valve.
3. A pneumatic atomizing spray system as set forth in claim 2, wherein said second air circuit module includes a second primary pressure valve connected to said air source module and a second secondary pressure valve connected to said second primary pressure valve, said second secondary pressure valve being connected to said atomizing module, positive pressure being provided by said air source module to cause said first predetermined air flow to be output to said atomizing module sequentially through said second primary pressure valve and said second secondary pressure valve.
4. A pneumatic atomizing spray system as set forth in claim 1, wherein said air supply module includes a primary negative pressure air supply connected to said first air circuit module for providing negative pressure thereto and a primary positive pressure air supply connected to said second air circuit module for providing positive pressure thereto.
5. The pneumatic atomizing spray system of claim 3, wherein the mist flow treatment module comprises a mist flow splitting device and a mist flow treatment device connected with the mist flow splitting device, wherein an input end of the mist flow splitting device is connected with the atomizing module, the mist flow splitting device splits the atomized air flow and enables a first atomized air flow and a second atomized air flow obtained by splitting to be respectively output to a first channel and a second channel, the first atomized air flow is output to the spray module through the first channel, and the second atomized air flow is output to the first air path module through the second channel.
6. The pneumatic atomizing spray system of claim 5, wherein an output end of the mist stream treatment device is connected to the first secondary regulator, an input end of the mist stream treatment device is connected to the second channel, and the second atomized air stream is sent to the first air path module after being output to the mist stream treatment device through the second channel for pretreatment.
7. A pneumatic atomizing spray system as set forth in claim 4, further comprising a third air circuit module including a third primary pressure valve connected to said primary positive pressure air source and a third secondary monitor connected to said third primary pressure valve, an output of said third secondary monitor being connected to said spray module, positive pressure being provided by said primary positive pressure air source, a second predetermined air flow being output to said spray module by said third primary pressure valve and said third secondary monitor.
8. A pneumatic atomizing spray system as set forth in claim 6, wherein said second air circuit module further comprises a second secondary monitor, said first air circuit module further comprising a first secondary monitor, said second secondary monitor and said first secondary monitor being for measuring the flow rate of said first preset air stream and said second atomized air stream, respectively.
9. A pneumatic atomizing spray method, characterized in that the method is implemented with a pneumatic atomizing spray system according to any one of the preceding claims 1-8, the method comprising:
the control air source module provides positive pressure for 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 preset liquid and outputting atomized air flow to a mist flow treatment module;
the atomized air flow is subjected to split flow treatment through the mist flow treatment module so as to output a first atomized air flow and a second atomized air flow respectively;
and controlling the spraying module to spray the first atomized air flow, and simultaneously controlling the air source module to provide negative pressure for the 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 spray process further comprises:
and controlling the air source module to provide positive pressure for the third air path module so that a second preset air flow passes through the third air path module and is output to the spraying system.
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