CN115228643A - Pneumatic atomization spraying method and system - Google Patents
Pneumatic atomization spraying method and system Download PDFInfo
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- CN115228643A CN115228643A CN202211075108.8A CN202211075108A CN115228643A CN 115228643 A CN115228643 A CN 115228643A CN 202211075108 A CN202211075108 A CN 202211075108A CN 115228643 A CN115228643 A CN 115228643A
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- 238000000889 atomisation Methods 0.000 title claims abstract description 123
- 238000005507 spraying Methods 0.000 title claims abstract description 122
- 239000007788 liquid Substances 0.000 claims abstract description 48
- 239000003595 mist Substances 0.000 claims abstract description 41
- 238000005111 flow chemistry technique Methods 0.000 claims abstract description 40
- 238000012545 processing Methods 0.000 claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 claims description 27
- 230000001276 controlling effect Effects 0.000 claims description 23
- 239000007921 spray Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 10
- 238000012546 transfer Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 20
- 239000000463 material Substances 0.000 description 14
- 239000000443 aerosol Substances 0.000 description 9
- 238000001914 filtration Methods 0.000 description 6
- 230000000087 stabilizing effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 230000004907 flux Effects 0.000 description 4
- 238000011897 real-time detection Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 238000009688 liquid atomisation Methods 0.000 description 3
- 230000002035 prolonged 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
- 238000009826 distribution Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000012387 aerosolization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 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
- 239000002699 waste material Substances 0.000 description 1
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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 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
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, and has the characteristics of convenience in control and good stability, so that the application rate of the traditional aerosol spraying is higher in high-precision material spraying, but the ultrasonic atomization has higher requirements on the concentration, the viscosity and the like of the material, and the application field of the aerosol spraying is limited. 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 overhigh 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 fog flow, poor air flow control and incapability of quantifying the control process in the atomization process.
Therefore, the existing spraying system generally has the technical problems of difficult atomization of liquid with too high concentration or too high viscosity and unstable air 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, and aims to solve the technical problems that liquid with overlarge concentration or overlarge viscosity is difficult to atomize and the air flow control is unstable in the prior art.
One aspect of the present invention provides 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.
Compared with the prior art, the invention has the beneficial effects that: the pneumatic atomization spraying system provided by the invention comprises an air source module, a second air path module, a first air path module, an atomization module, a fog flow processing 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 atomization module is connected with the atomization flow processing module, the output end of the atomization 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 atomization air flow to the atomization flow processing module, ultrasonic atomization is not needed, preset liquid with different viscosities and concentrations can be atomized through control of flow and pressure of the first preset air flow, and the optimal atomization effect can be achieved. Thereby solving the technical problems of difficult atomization of liquid with overlarge concentration or overhigh viscosity and unstable air flow control.
According to above-mentioned technical scheme's an aspect, first gas circuit module presses jar, first second level to press the valve and first second level to transfer the valve including the first one-level that connects gradually, first one-level presses the valve to be connected the air supply module, first second level is transferred the valve and is connected fog flow processing module, through the air supply module provides the negative pressure, so that second atomizing air current loops through first second level is transferred the valve first second level is pressed the valve first second level press the jar and first one-level is pressed the valve output extremely the air supply module.
According to above-mentioned technical scheme's an aspect, second gas circuit module is including connecting the second one-level of air supply module press the valve and with the second level of valve that the second one-level was pressed and is connected transfers the valve, the second level is transferred the valve and 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 press the valve and the second level is transferred the valve and is exported extremely the atomizing module.
According to one aspect of the technical scheme, the air source module comprises 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 circuit module and used for providing negative pressure for the first air circuit module, and the primary positive pressure air source is connected with the second air circuit module and used for providing positive pressure for the second air circuit module.
According to one aspect of the technical scheme, the fog flow processing module comprises a fog flow dividing device and a fog flow processing device connected with the fog flow dividing device, the input end of the fog flow dividing device is connected with the atomization module, the fog 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.
According to one 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 delivered to the first air path module.
According to an aspect of above-mentioned technical scheme, pneumatic atomizing spraying system still includes third gas circuit module, third gas circuit module include with the third one-level that the one-level positive pressure air supply is connected presses the valve, and with the third second grade watch-dog that the valve is connected is pressed to the third one-level, the output of third second grade watch-dog is connected the spraying module, through the one-level positive pressure air supply provides the malleation, and a second is predetermine the air current and is passed through the third one-level press the valve and the third second grade watch-dog is exported extremely the spraying module.
According to one aspect of the above technical solution, the second air circuit module further includes a second secondary monitor, the first air circuit module further includes a first secondary monitor, and the second secondary monitor and the first secondary monitor are respectively used for measuring the flow rates of the first preset air flow and the second atomized air flow.
Another aspect of the present invention provides a pneumatic atomization spraying method, which is implemented by using any one of the pneumatic atomization spraying systems described above, and includes:
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 airflow is subjected to shunting treatment through the atomized airflow treatment module so as to output a first atomized airflow and a second atomized airflow 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.
According to an aspect of the foregoing technical solution, the 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.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a block diagram of a pneumatic atomizing spray system according to a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a pneumatic atomizing spray system according to a first embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a pneumatic atomizing spray system according to a first embodiment of the present invention;
FIG. 4 is a schematic diagram of a pneumatic atomizing spray system according to a second embodiment of the present invention;
FIG. 5 is a schematic diagram of a pneumatic atomizing spray system according to a third embodiment of the present invention;
FIG. 6 is a flow chart of a pneumatic atomized spray method according to a fourth embodiment of the invention;
the figure elements are illustrated in symbols:
the air source module 100, the second air path module 200, the first air path module 300, the atomization module 400, the mist flow processing module 500, the spray module 600, and the third air path module 700.
Detailed Description
In order to make the objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. Several embodiments of the invention are presented in the drawings. 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 "secured 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. As used herein, the terms "vertical," "horizontal," "left," "right," "up," "down," and the like are used for descriptive purposes only and not for purposes of indicating or implying that the referenced device or element 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 otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Example one
Referring to fig. 1-3, a pneumatic atomization spraying system provided by the present invention is shown, which includes an air source module 100, a second air path module 200, a first air path module 300, an atomization module 400, a mist flow processing module 500, and a spraying module 600. Wherein, the air supply module 100 is used for providing air pressure for the second air circuit module 200 and the first air circuit module 300, the air supply module 100 includes a first-level negative pressure air supply and a first-level positive pressure air supply, the first-level negative pressure air supply is connected with the first air circuit module 300, so as to provide negative pressure for the first air circuit module 300, so as to stably output the second atomization air flow to the first-level negative pressure air supply through the first air circuit module 300, the first-level positive pressure air supply is connected with the second air circuit module 200, so as to provide positive pressure for the second air circuit module 200, so as to output the first preset air flow to the atomization module 400 through the second air circuit module 200.
Wherein, second gas circuit module 200 presses the valve and presses the second grade of valve being connected with the second one-level of valve to press including the second one-level of connecting air supply module 100 and, and the input that the second one-level pressed the valve is connected one-level positive pressure air supply, and the second grade is transferred the valve output and is connected atomizing module 400. Positive pressure is provided through 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 pressure regulating valve in sequence, the second primary pressure valve controls the total air pressure of the whole second air path module 200, and the stability of the first preset air flow of the second air path module 200 is maintained. The second secondary regulating valve regulates the flow of the first preset airflow of the second air circuit module 200, in addition, the second air circuit module 200 further comprises a second secondary monitor, in this embodiment, the second secondary monitor is a second digital flowmeter, the second digital flowmeter is arranged between the second secondary regulating valve and the atomization module 400, the flow value of the first preset airflow in the second air circuit module 200 is detected in real time through the second digital flowmeter, the accurate stable control of the first preset airflow is completed by regulating the flow of the first preset airflow of the second air circuit module 200 through the second secondary regulating valve, the accurate stable flow and the pressure of the first preset airflow are conveyed to the atomization module 400, and the atomization effect of the atomization module 400 is improved. The second first-level pressure valve and the second-level pressure valve have continuous adjusting and locking functions to improve the stability of the flow of the first preset gas flow, wherein the second first-level pressure valve comprises and is not limited to a positive pressure reducing valve, a positive pressure stabilizing valve, a flow meter, a numerical control gas flow meter and the like.
Further, atomizing module 400 is used for atomizing predetermineeing liquid through first predetermined air current, atomizing module 400 includes atomizing device and stores the predetermined liquid in atomizing device, in this embodiment, this predetermined liquid can be the aerosol, atomizing device is last to be equipped with the outlet duct and to insert the intake pipe in predetermineeing liquid, the air inlet of intake pipe inserts to storing in the predetermined liquid in atomizing device, fog flow diverging device is connected to the gas outlet of outlet duct, first predetermined air current passes through second gas circuit module 200 and intake pipe and exports to predetermineeing in the liquid, atomizing device will atomize according to the flow and the pressure of first predetermined air current and form atomizing air current to predetermineeing liquid, atomizing effect of atomizing air current depends on the flow and the pressure of first predetermined air current. Wherein the atomization device may be a collision atomizer that atomizes the predetermined liquid using an aerosolization 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. Then the preset liquid is broken up and atomized by the high-speed first preset air flow to generate liquid drops with large-range particle sizes. The atomized liquid is impacted on the wall of the tank, smaller liquid drops are generated and are brought out from the air outlet by the first preset air flow to form the atomized air flow, and it needs to be noted that the atomized liquid with different viscosities and concentrations can be atomized by adjusting the pressure and the flow of the first preset air flow of the second-level pressure valve and the second-level pressure valve, so that the atomized liquid atomization device can be widely applied to materials with different concentrations and viscosities, and avoids the problems that ultrasonic atomization has high requirements on the concentrations, viscosities and the like of the materials, and the atomization of the liquid with overlarge concentrations or overhigh viscosities is difficult. Simultaneously, also can realize the best atomization effect of atomizing air current through the pressure and the flow of adjusting the first predetermined air current of second one-level pressure valve and second level pressure valve to reach accurate stable control atomization effect, improve atomizing tolerance control.
In addition, the gas outlet of the atomization device outputs the atomized gas flow to the mist flow processing module 500, and the mist flow processing device is used for shunting the atomized gas flow. The mist flow treatment module 500 includes 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 an air outlet pipe of the atomizing device, because the flow rate of the atomized air flow is very large, and the flow rate of the atomized air flow required by the spraying module 600 is very small, the atomized air flow needs to be divided, the atomized air flow is divided into a branch flow with a large flux and a branch flow with a small flux, the branch flow with the small flux enters the spraying module 600 to complete spraying, the mist flow dividing device divides the atomized air flow and enables the divided first atomized air flow and second atomized air flow to be respectively output to a first channel and a second channel, the first channel outputs the first atomized air flow, namely the branch flow with the small flux, the first channel is connected to the spraying module 600, the first atomized air flow is output to the spraying module 600 through the first channel, and spraying of the first atomized air flow is completed through the spraying module 600.
Furthermore, the output end of the mist flow treatment device is connected with a first secondary regulating valve, the input end of the mist flow treatment device is connected with a second channel, a second atomized gas flow is a large-flux branch flow, the second atomized gas flow is output to the mist flow treatment device through the second channel for pretreatment, and then is output to a primary negative pressure gas source through a first gas circuit module 300, wherein the mist flow treatment device can have the functions of drying, filtering, recycling, impurity removal and the like, and the required pretreated mist flow treatment device is 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 as to prevent the large particulate matters in the second atomized air flow 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 large particulate matters cause the air pump to be blocked, the second atomized air flow cannot be discharged, the spraying of the first atomized air flow is influenced, or the recovery function of the mist flow treatment device is passed, the preset liquid in the second atomized air flow is recovered and reused, 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 being pretreated, and the first air path module 300 is used for stably outputting the pretreated second atomized air flow to the primary negative pressure air source. First air circuit module 300 is including the first one-level pressure valve that connects gradually, first two-level pressure jar, first two-level pressure valve and first two-level accent valve, first one-level pressure valve is connected one-level negative pressure air supply, first two-level is transferred the valve and is connected fog flow processing module 500, provide the negative pressure through one-level negative pressure air supply, so that second atomizing air current loops through first two-level and transfers the valve, first two-level pressure jar and first one-level are pressed the valve and are exported to one-level negative pressure air supply, wherein, this first one-level pressure valve sets up the upper reaches of one-level negative pressure air supply, control air supply pressure, first two-level pressure jar sets up between first one-level pressure valve and first two-level pressure valve, let in second atomizing air current lets in first two-level pressure jar, play the cushioning effect, with the atmospheric pressure of stabilizing second atomizing air current, the volume of first two-level pressure jar is more than or equal to 0.5L, the quantity is at least 1, in this embodiment, first two-level pressure jar is 2 5L's pressure jar, be used for stabilizing first air circuit module 300's atmospheric pressure. Through the setting that first one-level pressed valve, first secondary pressure jar, first secondary pressure valve, can be accurate and the atmospheric pressure of the first air circuit module 300 of stable control 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 phenomenon that the spraying effect is affected due to the fact that the air pressure of the first atomization airflow is unstable due to the fact that the air pressure of the first air path module 300 is unstable is avoided. In addition, the setting of the first secondary regulating valve is used for regulating and controlling the gas flow of the second atomized gas flow in the first gas circuit module 300, and the precise and stable control of the second atomized gas flow, namely the high-flux mist flow, is realized through the matching and setting of each element of the second gas circuit module 200. Wherein, first primary pressure valve and first secondary pressure valve have continuous regulation and the dead function of lock to improve the stability of the flow of second atomizing air current, first primary pressure valve and first secondary pressure valve include and are not limited to malleation relief pressure valve, malleation surge damping valve, flow valve, flowmeter, numerical control gas flowmeter etc..
In addition, second gas circuit module 200 still includes first second grade watch-dog, in this embodiment, first second grade watch-dog is first digital flowmeter, first digital flowmeter locates between first second grade accent valve and the fog stream processing apparatus, first digital flowmeter is used for the flow of real-time detection second atomizing air current, the accurate stable control of second atomizing air current is accomplished to the flow of the second atomizing air current of collocation first second grade accent valve regulation first gas circuit module 300, realize that the accurate stable flow of second atomizing air current exports one-level negative pressure air supply, do not influence the flow of first atomizing air current in the first passageway, thereby improve the spraying effect of first atomizing air current.
In addition, the pneumatic atomization spraying system further includes a third air path module 700, the third air path module 700 is used to increase the spraying stability of the spraying module 600, the input end of the third air path module 700 is connected to a primary positive pressure air source, the output end of the third air path module 700 is connected to the spraying module 600, the spraying module 600 is used to spray a first atomization air flow, the spraying module 600 includes a nozzle, the first atomization air flow is sprayed out through the nozzle, the third air path module 700 includes a third primary pressure valve connected to the primary positive pressure air source and a third secondary monitor connected to the third primary pressure valve, in this embodiment, the third secondary monitor is a third digital flow meter, wherein the third primary pressure valve is used to control the total air pressure of the whole third air path module 700, and the third digital flow meter is used to detect the flow of a second preset air flow in real time, provide the malleation through one-level positive pressure gas supply, the second is predetermine the air current and is carried to spraying module 600 through third one-level pressure valve and third digital flowmeter, so that first atomizing air current and second predetermine the air current and intersect and get into spraying module 600, thereby make first atomizing air current can more accurate and stable spraying, in order to increase the spraying stability of first atomizing air current, flow and the atmospheric pressure of air current are predetermine through accurate control second, so that the spraying of first atomizing air current is more accurate and stable, wherein, the third one-level pressure valve has continuous regulation and dead function of lock, in order to improve the second and predetermine the stability of the flow of air current, the third one-level pressure valve includes and is not limited to the malleation relief pressure valve, the malleation surge valve, a flow valve, a flowmeter, numerical control gas flowmeter etc.. Through the three independent airflow control modules of the second air circuit module 200, the first air circuit module 300 and the third air circuit module 700, the interference between air circuits is reduced, and the spraying is more stable and accurate.
As a specific example, in the present embodiment, the optional components of the first air circuit module 300 are a first primary pressure valve, a first secondary pressure tank, two 5L pressure tanks, a first secondary pressure valve, a first secondary monitor, a digital flow meter, and a first secondary flow regulating valve, respectively. In the flow direction of the second atomized gas flow, the digital flowmeter, the negative pressure flow valve, the negative pressure reducing valve, the 5L pressure tank and the negative pressure reducing valve are arranged in sequence;
the selective matching elements of the second gas circuit module 200 are a second primary pressure valve, a positive pressure reducing valve, a second secondary pressure regulating valve, a positive pressure flow valve and a second secondary monitor, wherein the second primary pressure valve, the positive pressure flow valve and the second secondary monitor are respectively matched with a digital flowmeter. In the first preset airflow flowing direction, the elements are sequentially provided with a positive pressure reducing valve, a positive pressure flow valve and a digital flowmeter;
the matching elements of the third gas circuit module 700 are a third first-level pressure valve and a positive pressure reducing valve, a third second-level regulating valve is abandoned, and a third second-level monitor and a digital flowmeter are matched. In the second preset airflow flowing direction, the elements are sequentially provided with a positive pressure reducing valve and a digital flowmeter. The mist flow processing module 500 comprises mist flow distribution, drying, filtering and recovery;
through the accurate stable control and cooperation of first gas circuit module 300, second gas circuit module 200, third gas circuit module 700, make the aerosol fog that pneumatic atomization system produced accurate, stable, meticulous ground spraying module 600 blowout.
Compared with the prior art, the pneumatic atomization spraying system provided by the embodiment has the advantages 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 fog flow processing 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 atomization module is connected with the atomization flow processing module, the output end of the atomization 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 atomization air flow to the atomization flow processing module, ultrasonic atomization is not needed, preset liquid with different viscosities and concentrations can be atomized through control of flow and pressure of the first preset air flow, and the optimal atomization effect can be achieved. Thereby solving the technical problems of difficult atomization of liquid with overlarge concentration or overhigh viscosity and unstable air flow control.
Example two
Referring to fig. 4, a pneumatic atomization spraying system according to a second embodiment of the present invention is shown, which is different from the pneumatic atomization spraying 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 regulating valve, the first digital flowmeter is arranged between the first second-stage pressure valve and the first second-stage regulating 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 falling, the detection flow is abnormal and fails, the third second-stage regulating valve is arranged between the third first-stage pressure valve and the third digital flowmeter and used for controlling the flow of the second preset air flow of the third air path module 700, the second preset air flow is matched with the flow value of the second preset air flow detected in real time by the third digital flowmeter, the accurate stable control of the second preset air flow is completed, and the spraying of the first atomized air flow is accurately and stably controlled.
Specifically, in this embodiment, the optional components of the first air circuit module 300 are a first primary pressure valve, a first secondary pressure tank, a 20L pressure tank, a first secondary pressure valve, a digital flow meter, and a first secondary pressure flow valve, respectively. In the flow direction of the second atomized gas flow, the elements are sequentially provided with a negative pressure flow valve, a digital flowmeter, a negative pressure reducing valve, a 20L pressure tank and a negative pressure reducing valve;
the selective matching elements of the second gas circuit module 200 are a second primary pressure valve selective matching positive pressure stabilizing valve, a second secondary regulating valve selective matching positive pressure flow valve, and a second secondary monitor selective matching digital flow meter. In the first preset airflow flowing direction, the elements are sequentially provided with a positive pressure reducing valve, a digital flowmeter and a positive pressure flow valve;
the optional elements of the third gas circuit module 700 are a third first-level pressure valve optional positive pressure reducing valve, a third second-level regulating valve optional positive pressure flow valve, and a third second-level monitor optional digital flow meter. In the second preset airflow flowing direction, the elements are sequentially provided with a positive pressure reducing valve, a positive pressure flow valve and a digital flowmeter. The mist flow processing module 500 comprises mist flow shunting, drying and filtering;
through the precise and stable control and matching of the first air path module 300, the second air path module 200 and the third air path module 700, the aerosol mist generated by the pneumatic atomization system is sprayed out through the spraying module 600 precisely, stably and finely.
Compared with the prior art, the pneumatic atomization spraying system provided by the embodiment has the advantages that: the atomization treatment can be carried out on the preset liquid with different viscosities and concentrations by controlling the flow and the pressure of the first preset air flow, the optimal atomization effect can be achieved, the application range is wide, the problem that the concentration, the viscosity and the like of materials are higher due to ultrasonic atomization, the liquid with overlarge concentration or overlarge viscosity is difficult to atomize is avoided, the interference of the second atomized air flow on the first atomized air flow is reduced by independent air flow control of the second air path module and the first air path module, the stability of the first atomized air flow is improved, so that the spraying of the first atomized air flow is more accurate and stable, the interference of the second atomized air flow on the first atomized air flow is further reduced by adjusting the pressure and the flow of the second air path module and the first air path module, improve the accuracy and the stability of first atomizing air current spraying, entire system design is simple, and is with low costs, in addition, first digital flowmeter locates between first second pressure valve and the first second pressure valve, improve first digital flowmeter's life, be equipped with the third second pressure valve between third first pressure valve and the third digital flowmeter, the flow of second preset air current of third gas circuit module is used for controlling to the third second pressure valve, with the flow value cooperation of presetting air current through the real-time detection second with third digital flowmeter, accomplish the accurate stable control of second preset air current, thereby the spraying of the first atomizing air current of accurate stable control, thereby the liquid atomization difficulty and the unstable technical problem of tolerance control that concentration is too big or viscosity is too high have been solved.
EXAMPLE III
Referring to fig. 5, a pneumatic atomization spraying system according to a third embodiment of the invention is shown, which is different from the pneumatic atomization spraying system in the first embodiment in that:
the first secondary pressure tank is a 50L pressure tank, the second secondary monitor is arranged between the first secondary pressure valve and the first secondary regulating valve, the service life of the second secondary monitor is prolonged, the second atomized air flow is prevented from being directly output to the second secondary monitor, the sensitivity of the second secondary monitor is reduced due to overlarge flow fluctuation or sudden rising and falling, and the detected flow is abnormal and breaks down, the third secondary regulating valve is arranged between the third primary pressure valve and the third secondary monitor and used for controlling the flow of the second preset air flow of the third air circuit module 700, so that the flow value of the second preset air flow is matched with the real-time detection of the third secondary monitor, and accurate and stable control of the second preset air flow is completed.
As a specific example, in the present embodiment, the selective components of the first air circuit module 300 are a first primary pressure valve, a first secondary pressure tank, a 50L pressure tank, a first secondary pressure valve, a negative pressure (vacuum) pressure reducing valve, a first secondary monitor, a digital flow meter, and a first secondary flow regulating valve, respectively. In the flow direction of the second atomized gas flow, the elements are sequentially provided with 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 selective matching elements of the second gas circuit module 200 are a second primary pressure valve selective matching positive pressure stabilizing valve, a second secondary regulating valve selective matching positive pressure flow valve, and a second secondary monitor selective matching digital flow meter. In the first preset airflow flowing direction, the elements are sequentially provided with a positive pressure reducing valve, a positive pressure flow valve and a digital flowmeter;
the optional elements of the third gas circuit module 700 are a third first-level pressure valve optional positive pressure reducing valve, a third second-level regulating valve optional positive pressure flow valve, and a third second-level monitor optional digital flow meter. In the second preset airflow flowing direction, the elements are sequentially provided with a positive pressure reducing valve, a positive pressure flowmeter and a digital flowmeter. The mist flow processing module 500 comprises mist flow distribution, drying, filtering and impurity removal;
through the precise and stable control and matching of the first air path module 300, the second air path module 200 and the third air path module 700, the aerosol mist generated by the airflow atomization system is sprayed out through the spraying module 600 precisely, stably and finely.
Compared with the prior art, the pneumatic atomization spraying system provided by the embodiment has the advantages that: the atomization treatment can be carried out on the preset liquid with different viscosities and concentrations by controlling the flow and the pressure of the first preset air flow, the optimal atomization effect can be achieved, the application range is wide, the problem that the concentration, the viscosity and the like of materials are higher due to ultrasonic atomization, the liquid with overlarge concentration or overlarge viscosity is difficult to atomize is avoided, the interference of the second atomized air flow on the first atomized air flow is reduced by independent air flow control of the second air path module and the first air path module, the stability of the first atomized air flow is improved, so that the spraying of the first atomized air flow is more accurate and stable, the interference of the second atomized air flow on the first atomized air flow is further reduced by adjusting the pressure and the flow of the second air path module and the first air path module, the accuracy and the stability of the spraying of the first atomizing air current are improved, the whole system design is simple, the cost is low, the second grade watch-dog is located between first second grade pressure valve and the first second grade governing valve, the service life of the second grade watch-dog is prolonged, be equipped with the third second grade governing valve between third first grade pressure valve and the third second grade watch-dog, the flow of the second preset air current of third gas circuit module is controlled in the third second regulating valve, in order to predetermine the flow value cooperation of air current through the real-time detection second with the third second grade watch-dog, accomplish the accurate stable control of the second preset air current, thereby the spraying of the first atomizing air current of accurate stable control, thereby the liquid atomizing difficulty and the unstable technical problem of tolerance control of too big concentration or too high viscosity have been solved.
Example four
Referring to fig. 6, a pneumatic atomization spraying method according to a fourth embodiment of the present invention is provided, where the control method includes steps S10 to S13:
step S10, controlling an air source module to provide positive pressure to a second air path module so that the second air path module outputs a first preset air flow to an atomization module;
specifically, the air source module is used for providing air pressure for the second air circuit module and the first air circuit module, the air source module comprises a one-level negative pressure air source and a one-level positive pressure air source, and the one-level positive pressure air source is connected with the second air circuit module and used for providing positive pressure for the second air circuit module so that the second air circuit module outputs air flow to the atomization module.
Wherein, the second gas circuit module includes that the second one-level presses the valve and presses the second grade of valve being connected with the second one-level and transfers the valve, and the input that the second one-level pressed the valve is connected one-level positive pressure air supply, and the second grade is transferred the valve output and is connected atomizing module. The positive pressure is provided through the primary positive pressure gas source, so that the first preset gas flow is output to the atomization module through the second primary pressure valve and the second secondary pressure regulating valve in sequence, and the second primary pressure valve controls the total gas pressure of the whole second gas circuit module. The second secondary regulating valve is used for adjusting the flow of the first preset air flow of the second air circuit module, in addition, the second air circuit module further comprises a second secondary monitor, the flow value of the first preset air flow in the second air circuit module is detected in real time through the second secondary monitor, the accurate stable control of the first preset air flow is completed through adjusting the flow of the first preset air flow of the second air circuit module by the second secondary regulating valve in a matched mode, the accurate stable flow and pressure of the first preset air flow are conveyed to the atomization module, and the atomization effect of the atomization module is improved.
S11, controlling the atomization module to atomize preset liquid and output atomized airflow to the fog flow processing module based on the first preset airflow;
wherein, the atomizing module includes atomizing device and locates the interior liquid of predetermineeing of atomizing device, the last gas outlet that is equipped with of atomizing device and inserts the air inlet in predetermineeing liquid, first predetermined gas flow passes through second gas circuit module and exports to the air inlet to the contact and predetermines liquid, atomizing device will atomize according to the flow and the pressure of first predetermined air current to predetermineeing liquid and form the atomizing air current, the atomization effect of atomizing air current depends on the flow and the pressure of first predetermined air current.
It should be noted that, the pressure and the flow of the first preset air flow through adjusting the second primary pressure valve and the second secondary pressure valve can atomize the preset liquid with different viscosity and concentration, and the ultrasonic atomization method can be widely applied to materials with different concentrations and viscosities to avoid the difficulty in atomizing the liquid with high requirements on the concentration, the viscosity and the like of the material, and with too high concentration or viscosity. Simultaneously, also can realize the best atomization effect of atomizing air current through the pressure and the flow of the first predetermined air current of adjusting second one-level pressure valve and second level pressure valve to reach accurate stable control atomization effect, improve atomizing tolerance control.
Step S12, the atomized airflow is subjected to flow division processing through the atomized airflow processing module so as to output a first atomized airflow and a second atomized airflow respectively;
wherein, the fog flow processing device is used for carrying out the reposition of redundant personnel processing with the atomizing air current. The fog flow processing module comprises a fog flow dividing device and a fog flow processing device connected with the fog flow dividing device, the fog flow dividing device divides the atomized air flow and enables the divided first atomized air flow and the divided second atomized air flow to be respectively output to the first channel and the second channel, wherein the first atomized air flow is output from the first channel, and the second atomized air flow is output from the second channel.
And S13, 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 is output to the air source module through the first air path module.
The first channel is connected with the spraying module, the first atomized air flow is output to the spraying module through the first channel, and the spraying of the first atomized air flow is completed through the spraying module. Meanwhile, the second atomized gas flow is output to the fog flow processing device through the second channel for pretreatment, and then is conveyed to the first air path module, wherein the fog flow processing device can have the functions of drying, filtering, recycling, impurity removal and the like, and the fog flow processing device which needs pretreatment is rotated according to the material of the preset liquid.
In addition, first air circuit module is including the first one-level pressure valve that connects gradually, first two-level pressure jar, first two-level pressure valve and first two-level accent valve, first one-level pressure valve connects one-level negative pressure air supply, fog flow processing module is connected to first two-level accent valve, provide the negative pressure through one-level negative pressure air supply, so that second atomizing air current loops through first two-level accent valve, first two-level pressure jar and first one-level pressure valve output to one-level negative pressure air supply, wherein, this first one-level pressure valve sets up in the air current flow direction, and be close to the upper reaches of one-level negative pressure air supply, control air supply pressure, first two-level pressure jar sets up between first one-level pressure valve and first two-level pressure valve, let in second atomizing air current in the first two-level pressure jar, play the cushioning effect, with the atmospheric pressure of stabilizing second atomizing current, through first one-level pressure valve, first two-level pressure jar, the setting of first two-level pressure valve, can accurate and stable control first air circuit module's atmospheric pressure, from not influence the stability of first atomizing air current in first passageway, thereby improve the spraying effect of first atomizing current. The air pressure instability of the first atomization air flow caused by the air pressure instability of the first air circuit module is avoided, and the spraying effect is prevented from being influenced. In addition, the arrangement of the first secondary adjusting valve is used for adjusting and controlling the gas flow of the second atomized gas flow in the first gas circuit module, and the precise and stable control of the second atomized gas flow is realized through the matching and arrangement of all elements of the second gas circuit module.
It should be noted that the 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.
The third gas circuit module is used for increasing the spraying stability of the spraying module, the input end of the third gas circuit module is connected with a primary positive pressure gas source, the output end of the third gas circuit module is connected with the spraying module, the spraying module is used for spraying a first atomized gas flow, the spraying module comprises a nozzle, the first atomized gas flow is sprayed out through the nozzle, the third gas circuit module comprises a third primary pressure valve connected with the primary positive pressure gas source and a third secondary monitor connected with the third primary pressure valve, the third primary pressure valve is used for controlling the total gas pressure of the whole third gas circuit module, the third secondary monitor is used for detecting the flow of a second preset gas flow in real time, positive pressure is provided through the primary positive pressure gas source, the second preset gas flow is conveyed to the spraying module through the third primary pressure valve and the third secondary monitor, so that the first atomized gas flow and the second preset gas flow intersect to enter the spraying module, so that the first atomized gas flow can be more accurate and stable in spraying, the spraying stability of the first atomized gas flow is increased, the flow and the gas pressure of the second preset gas flow are more accurate in control, the spraying module, the flow and the spraying stability of the third gas circuit module are more accurate, and the three gas circuit modules are more accurate control of the spraying module, and the interference between the spraying module is reduced, and the three gas circuit is more accurate gas circuit.
Compared with the prior art, the pneumatic atomization spraying method provided by the embodiment has the advantages that: the pneumatic atomization spraying method provided by the invention specifically comprises the steps of controlling the air source module of the pneumatic module 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, the atomization module is controlled to atomize the preset liquid and output the atomized air flow to the fog flow processing module, ultrasonic atomization is not needed, the preset liquid with different viscosity and concentration can be atomized through controlling the flow and pressure of the first preset air flow, the optimal atomization effect can be adjusted, the application range is wide, and the liquid atomization difficulty caused by overlarge concentration or overhigh viscosity due to the fact that the requirements of ultrasonic atomization on the concentration, viscosity and the like of materials are high is avoided; the atomized airflow is subjected to shunting treatment through the atomized airflow treatment module so as to output a first atomized airflow and a second atomized airflow respectively; the spraying control module sprays the first atomized air flow, and meanwhile, the air source module is controlled to provide negative pressure for 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, through independent air flow control of the second air path module and the first air path module, interference of the second atomized air flow on the first atomized air flow is reduced, stability of the first atomized air flow is improved, so that spraying of the first atomized air flow is more accurate and stable, pressure and flow of the second air path module and the first air path module are adjusted, interference of the second atomized air flow on the first atomized air flow is further reduced, accuracy and stability of spraying of the first atomized air flow are improved, the control method is simple, and accuracy and stability of spraying of the first atomized air flow are effectively improved. Thereby solving the technical problems of difficult atomization of liquid with overlarge concentration or overlarge viscosity and unstable air flow control.
In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like 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 invention. In this specification, the schematic representations of the terms used above 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 express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present patent shall 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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