CN107225057B - A kind of pressure stabilizing and filter device for PWM variable rate spray - Google Patents
A kind of pressure stabilizing and filter device for PWM variable rate spray Download PDFInfo
- Publication number
- CN107225057B CN107225057B CN201710357967.9A CN201710357967A CN107225057B CN 107225057 B CN107225057 B CN 107225057B CN 201710357967 A CN201710357967 A CN 201710357967A CN 107225057 B CN107225057 B CN 107225057B
- Authority
- CN
- China
- Prior art keywords
- mounting base
- slide bar
- filter device
- filter
- connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000007921 spray Substances 0.000 title claims abstract description 31
- 230000000087 stabilizing effect Effects 0.000 title claims abstract description 21
- 239000012530 fluid Substances 0.000 claims abstract description 45
- 238000007789 sealing Methods 0.000 claims abstract description 29
- 230000000694 effects Effects 0.000 abstract description 5
- 230000033228 biological regulation Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003814 drug Substances 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- 238000000889 atomisation Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000009288 screen filtration Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/085—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to flow or pressure of liquid or other fluent material to be discharged
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Nozzles (AREA)
Abstract
The invention discloses a kind of pressure stabilizing for PWM variable rate spray and filter devices, the stable-pressure device and filter device being installed on including connector and removable seal on connector, the external medical fluid of the entrance of the filter device, the outlet of filter device and stable-pressure device are connected to the connector；The stable-pressure device includes mounting base and slide bar, elastic component and sealing element in mounting base, the mounting base and the connector are tightly connected, the slide bar is slidably mounted in the mounting base, and the both ends of the elastic component connect with the slide bar and mounting base respectively and press sliding bar；The slide bar is tightly connected by sealing element and the mounting base.The present invention has the beneficial effect that structure is simple, automatic voltage regulation and filter effect are good.
Description
Technical field
The present invention relates to a kind of pressure stabilizing and filter devices, refer in particular to a kind of pressure stabilizing and filtering for PWM variable rate spray
Device.
Background technique
PWM variable rate spray is a kind of equipment for becoming spray time, passes through the adjusting to pwm signal duty ratio and frequency, control
The conducting and closure of high-speed electromagnetic valve processed, and then realize the adjusting for spraying flow and mist droplet deposition distribution.However, high-speed electromagnetic valve
Moment is being connected and is being closed, medical fluid sprays circuit there are biggish medical fluid pressure oscillation, be deteriorated so as to cause fog drop size distribution,
Be unfavorable for Spray stability the problem of, such as droplet drift risk increases and medical fluid droplet blade face deposition distribution is uneven.It is existing at present
PWM variable rate spray mainly passes through overflow device and accumulator and sprays circuit progress pressure stabilizing, knot to medicine-chest to the medical fluid between solenoid valve
Structure is complicated and voltage regulation result is poor.And the arrangement of liquid medicine filter concentrates on medicine-chest between solenoid valve, and agrosprayer by
It works for a long time in its severe operating environment and each hydraulic component, medical fluid, which sprays, is easy that impurity can be mixed in circuit, leads
The blocking of spray head is caused, so that equipment can not be normally carried out by spraying.
Summary of the invention
It is an object of the invention to be directed to disadvantages mentioned above, it is good to provide a kind of simple structure, automatic voltage regulation and filter effect
Pressure stabilizing and filter device for PWM variable rate spray.
Following technical scheme can be used to reach in the purpose of the present invention:
A kind of pressure stabilizing and filter device for PWM variable rate spray, including connector and removable seal are installed on connection
Stable-pressure device and filter device on body, the external medical fluid of the entrance of the filter device, the outlet of filter device and stable-pressure device
It is connected to the connector；The stable-pressure device includes mounting base and slide bar, elastic component and sealing element in mounting base, institute
It states mounting base and the connector is tightly connected, the slide bar is slidably mounted in the mounting base, and the two of the elastic component
End connect with the slide bar and mounting base respectively and presses sliding bar；The slide bar is sealed by sealing element and the mounting base
Connection.
Further, the filter device includes shell, filter and supporting block, is hollow knot inside the supporting block
Structure, the shell is equipped with entrance and exit, and inner wall is equipped with annular protrusion；The filter is that one end is provided with the hollow of through-hole
One end of structure, the supporting block is sheathed in the filter by through-hole, and the supporting block presses the upper of the filter
The bottom surface at end, the filter is pressed on the annular protrusion；The supporting block is installed on the exit of the shell, and props up
The bottom surface of bracer is not contacted with the inner bottom surface of filter.
As a preferred solution, the sealing element is diaphragm seal, and the diaphragm seal is fixedly connected with the bottom end of slide bar,
The diaphragm seal is slidably sheathed in mounting base, and diaphragm seal and the inner wall of mounting base are tightly connected.
As a preferred solution, the sealing element is sealing ring, is provided with annular groove on the outer surface of the slide bar, institute
It states sealing ring to be sheathed in annular groove, the slide bar is tightly connected by sealing ring and the inner wall of the mounting base.
As a preferred solution, the inner face of the mounting base is equipped with downwardly projecting annular sleeve, the slide bar
Upper end be slidably sheathed in the annular sleeve, the elastic component is placed on the outer surface of the annular sleeve.
As a preferred solution, the upper end of the slide bar is pressed from both sides equipped with locking, and the locking folder is slidably sheathed on institute
It states in annular sleeve.
As a preferred solution, the elastic component is spring.
Further, the mounting base and shell are seal-installed on the connector by gasket, and mounting base and
Shell is removably mounted on the connector by screw thread.
Further, the connector is fixedly installed in the outlet of solenoid valve, is equipped in the outlet of the connector
Nozzle.
Further, the solenoid valve can be mounted on the base by the way that stepper motor is swingable.
The invention has the following beneficial effects:
1, it is flowed into connector after medical fluid of the invention is filtered by filter device, under medicine action of hydraulic force, works as pressure
Greater than elastic component elastic force when, pressure overcome elastic force push sliding bar so that the circulation volume of medical fluid increases, so that medicine
Hydraulic coupling reduces and reaches new balance, to realize the purpose for the pressure that stable medical fluid sprays.If medical fluid pressure is less than elastic component
Elastic force when, then slide bar reverse slide under the active force of elastic force, so that the circulation volume of medical fluid reduces, so that medical fluid pressure
Power increases and reaches new balance, to improve atomisation pressure, can be adjusted automatically to medical fluid pressure, guarantee the stabilization of pressure
Property, the case where preventing huge fluctuation and the normal table that causes medical fluid to spray carries out, have simple structure, automatic adjustment and
The good feature of stability.
2, after medical fluid of the invention is flowed by the entrance of shell, strainer filtering that a part of medical fluid passes through filter floor
Enter in filter afterwards and is flowed in connector from supporting block, and the strainer filtering on the outer wall that a part of medical fluid passes through filter
Enter in filter afterwards and is finally flowed in connector from supporting block.Medical fluid can keep the clear of medical fluid after filter screen filtration
Cleanliness prevents nozzle to be blocked and can not work, and after supporting block is disassembled, filter screen can be carried out cleaning or
Replacement ensure that filter device has good filter effect.
3, it since lockable clamps have certain elastic deformation amount, is squeezed and deformed and is sheathed in annular sleeve in locking double-layered quilt
When, the inner wall of the excircle press annular sleeve of locking folder, so that the case where slide bar will not generate shaking during sliding, protects
Demonstrate,proved slide bar can only along annular sleeve axis direction it is for linear motion.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the present invention for the pressure stabilizing of PWM variable rate spray and the structural schematic diagram of filter device；
Fig. 2 is cross-sectional view of the present invention for the pressure stabilizing of PWM variable rate spray and the stable-pressure device of filter device；
Fig. 3 is cross-sectional view of the present invention for the pressure stabilizing of PWM variable rate spray and the filter device of filter device.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
Referring to Figures 1 and 2, the present embodiment is related to pressure stabilizing and filter device, including connector 1 and removable seal are installed on
Stable-pressure device 2 and filter device 3 on connector 1, the external medical fluid of entrance of the filter device 3, the outlet of filter device 3 and
Stable-pressure device 2 is connected to the connector 1；The stable-pressure device 2 include mounting base 21 and slide bar 22 in mounting base 21,
Elastic component 23 and sealing element 24, the mounting base 21 are tightly connected with the connector 1, and the slide bar 22 is slidably mounted at institute
It states in mounting base 21, the both ends of the elastic component 23 connect with the slide bar 22 and mounting base 21 respectively and press slide bar 22 and slide
It is dynamic；The slide bar 22 is tightly connected by sealing element 24 and the mounting base 21.
Medical fluid flows into connector 1 after being filtered by filter device 3, under medicine action of hydraulic force, when pressure is greater than elasticity
When the elastic force of part 23, pressure overcomes elastic force and slide bar 22 is pushed to slide, so that the circulation volume of medical fluid increases, so that medical fluid
Pressure reduction and reach new balance, to realize the purpose for the pressure that stable medical fluid sprays.If medical fluid pressure is less than elastic component 23
Elastic force when, then the reverse slide under the active force of elastic force of slide bar 22, so that the circulation volume of medical fluid reduces, so that medical fluid
Pressure increases and reaches new balance, to improve atomisation pressure, can be adjusted automatically to medical fluid pressure, guarantee the steady of pressure
It is qualitative, the case where preventing huge fluctuation and the normal table that causes medical fluid to spray carries out, have that structure is simple, automatic adjustment
The good feature with stability.
As shown in figure 3, the filter device 3 includes shell 31, filter 32 and supporting block 33, inside the supporting block 33
For hollow structure, the shell 31 is equipped with entrance 311 and outlet 312, and inner wall is equipped with annular protrusion 34；The filter 32
The hollow structure of through-hole is provided with for one end, one end of the supporting block 33 is sheathed in the filter 32 by through-hole, described
Supporting block 33 presses the upper end of the filter 32, and the bottom surface of the filter 32 is pressed on the annular protrusion 34；It is described
Supporting block 33 is installed at the outlet 312 of the shell 31, and the bottom surface of supporting block 33 is not contacted with the inner bottom surface of filter 32.
After medical fluid is flowed by the entrance 311 of shell 31, after the strainer filtering that a part of medical fluid passes through 32 bottom surface of filter
It is flowed in connector 1 in into filter 32 and from supporting block 33, and the filter on the outer wall that a part of medical fluid passes through filter 32
Enter in filter 32 after net filtration and is finally flowed in connector 1 from supporting block 33.Medical fluid is can after filter screen filtration
The cleannes for keeping medical fluid prevent nozzle to be blocked and can not work, and after disassembling supporting block 33, can be to mistake
Strainer is cleaned or is replaced, and ensure that filter device 3 has good filter effect.
The sealing element 24 is diaphragm seal, and the diaphragm seal is fixedly connected with the bottom end of slide bar 22, and the diaphragm seal can be slided
It is dynamic to be sheathed in mounting base 21, and diaphragm seal and the inner wall of mounting base 21 are tightly connected.The diaphragm seal and the sealing of mounting base 21 connect
It connects and the pressure of medical fluid is directly acted on diaphragm seal, pressure pushes slide bar 22 to slide by diaphragm seal.In diaphragm seal
Under sealing function, medical fluid can not be flowed on slide bar 22, to ensure that slide bar 22 will not be hindered by medical fluid and can swimmingly pacify
It is slided in dress seat 21, realizes the function of automatic adjustment medical fluid pressure.
The inner face of the mounting base 21 is equipped with downwardly projecting annular sleeve 211, and the upper end of the slide bar 22 is slidably
It is sheathed in the annular sleeve 211, the elastic component 23 is placed on the outer surface of the annular sleeve 211.In leading for annular sleeve 211
To in effect, slide bar 22 can be slided along the axis direction of annular sleeve 211, and elastic component 23 is made in the positioning of annular sleeve 211
It under, can rapidly be arranged on the outer surface for being installed to annular sleeve 211, installation is simply and conveniently.
The upper end of the slide bar 22 is equipped with locking folder 221, and the locking folder 221 is slidably sheathed on the annular sleeve 211
It is interior.Since locking folder 221 has certain elastic deformation amount, it is deformed and is sheathed in annular sleeve 211 in locking folder 221
When, the inner wall of the excircle press annular sleeve 211 of locking folder 221, so that slide bar 22 will not generate shaking during sliding
The case where, ensure that slide bar 22 can only along annular sleeve 211 axis direction it is for linear motion.
The elastic component 23 is spring.The spring uses pressure spring, and slide bar 22 is respectively under the action of pressure spring and medical fluid pressure
It is slided in mounting base 21, when the pressure on top surface size of pressure spring and medical fluid pressure to slide bar 22 is identical, 22 stop motion of slide bar.
The mounting base 21 and shell 31 are seal-installed on the connector 1 by gasket 4, and mounting base 21 and shell
Body 31 is removably mounted on the connector 1 by screw thread.Under the sealing function of gasket 4, prevent medical fluid in mounting base
21 generate the case where revealing with the junction of connector 1 and the junction of shell 31 and connector 1.
The connector 1 is fixedly installed in the outlet of solenoid valve 5, is equipped with nozzle 6 in the outlet of the connector 1.
The solenoid valve 5 can be mounted on the base by the way that stepper motor is swingable.By controlling the rotational angle of stepper motor, can adjust
The direction of nozzle 6 is saved, to carry out medicine liquid spray to corresponding position, realizes the function of auto-adjustment control and work.
Embodiment 2
The present embodiment is that on the basis of embodiment 1, as the improvement to sealing element 24, the sealing element 24 is sealing
It encloses, is provided with annular groove on the outer surface of the slide bar 22, the sealing ring is sheathed in annular groove, and the slide bar 22 passes through sealing
Circle and the inner wall of the mounting base 21 are tightly connected.Slide bar 22 realizes that sealing connects by sealing element 24 and the inner wall of mounting base 21
It connects, when slide bar 22 slides, can prevent medical fluid from entering in the cavity formed between slide bar 22 and mounting base 21, to ensure that cunning
Bar 22 will not be hindered by medical fluid and can swimmingly be slided in mounting base 21.
Above disclosed is only a preferred embodiment of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, therefore equivalent changes made in accordance with the claims of the present invention, are still within the scope of the present invention.
Claims (9)
1. a kind of pressure stabilizing and filter device for PWM variable rate spray, it is characterised in that: pacify including connector and removable seal
Loaded on the stable-pressure device and filter device on connector, the external medical fluid of the entrance of the filter device, the outlet of filter device and
Stable-pressure device is connected to the connector；The stable-pressure device include mounting base and slide bar in mounting base, elastic component and
Sealing element, the mounting base and the connector are tightly connected, and the slide bar is slidably mounted in the mounting base, the bullet
The both ends of property part connect with the slide bar and mounting base respectively and press sliding bar；The slide bar passes through sealing element and the peace
Seat is filled to be tightly connected；
The filter device includes shell, filter and supporting block, is hollow structure inside the supporting block, the shell is equipped with
Entrance and exit, and inner wall is equipped with annular protrusion；The filter is the hollow structure that one end is provided with through-hole, the supporting block
One end be sheathed in the filter by through-hole, the supporting block presses the upper end of the filter, the filter
Bottom surface is pressed on the annular protrusion；The supporting block is installed on the exit of the shell, and the bottom surface of supporting block and mistake
The inner bottom surface of filter does not contact.
2. a kind of pressure stabilizing and filter device for PWM variable rate spray according to claim 1, it is characterised in that: described
Sealing element is diaphragm seal, and the diaphragm seal is fixedly connected with the bottom end of slide bar, and the diaphragm seal is slidably sheathed in mounting base,
And diaphragm seal and the inner wall of mounting base are tightly connected.
3. a kind of pressure stabilizing and filter device for PWM variable rate spray according to claim 1, it is characterised in that: described
Sealing element is sealing ring, and annular groove is provided on the outer surface of the slide bar, and the sealing ring is sheathed in annular groove, the slide bar
It is tightly connected by sealing ring and the inner wall of the mounting base.
4. a kind of pressure stabilizing and filter device for PWM variable rate spray according to claim 1, it is characterised in that: described
The inner face of mounting base is equipped with downwardly projecting annular sleeve, and the upper end of the slide bar is slidably sheathed in the annular sleeve,
The elastic component is placed on the outer surface of the annular sleeve.
5. a kind of pressure stabilizing and filter device for PWM variable rate spray according to claim 4, it is characterised in that: described
The upper end of slide bar is pressed from both sides equipped with locking, and the locking folder is slidably sheathed in the annular sleeve.
6. a kind of pressure stabilizing and filter device for PWM variable rate spray according to claim 1, it is characterised in that: described
Elastic component is spring.
7. a kind of pressure stabilizing and filter device for PWM variable rate spray according to claim 1, it is characterised in that: described
Mounting base and shell are seal-installed on the connector by gasket, and mounting base and shell are detachably installed by screw thread
In on the connector.
8. a kind of pressure stabilizing and filter device for PWM variable rate spray according to claim 1, it is characterised in that: described
Connector is fixedly installed in the outlet of solenoid valve, is equipped with nozzle in the outlet of the connector.
9. a kind of pressure stabilizing and filter device for PWM variable rate spray according to claim 8, it is characterised in that: described
Solenoid valve can be mounted on the base by the way that stepper motor is swingable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710357967.9A CN107225057B (en) | 2017-05-19 | 2017-05-19 | A kind of pressure stabilizing and filter device for PWM variable rate spray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710357967.9A CN107225057B (en) | 2017-05-19 | 2017-05-19 | A kind of pressure stabilizing and filter device for PWM variable rate spray |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107225057A CN107225057A (en) | 2017-10-03 |
| CN107225057B true CN107225057B (en) | 2019-07-12 |
Family
ID=59933254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710357967.9A Active CN107225057B (en) | 2017-05-19 | 2017-05-19 | A kind of pressure stabilizing and filter device for PWM variable rate spray |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107225057B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2258922Y (en) * | 1995-11-10 | 1997-08-06 | 裴继钊 | Small motor-driven spray pump |
| CN102648706A (en) * | 2012-05-10 | 2012-08-29 | 市下控股有限公司 | Pressure adjusting and stabilizing device for sprayer spray gun |
| CN102748100A (en) * | 2011-04-19 | 2012-10-24 | 苏州派格力减排***有限公司 | Urea measuring jet pump in SCR (Selective Catalytic Reduction) system |
| JP2013013842A (en) * | 2011-07-01 | 2013-01-24 | Norio Ozaki | Filter for coating spray gun, and coating spray gun using the same |
| CN103488195A (en) * | 2013-09-06 | 2014-01-01 | 浙江大学 | Method and device for building PWM spraying flow model |
-
2017
- 2017-05-19 CN CN201710357967.9A patent/CN107225057B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2258922Y (en) * | 1995-11-10 | 1997-08-06 | 裴继钊 | Small motor-driven spray pump |
| CN102748100A (en) * | 2011-04-19 | 2012-10-24 | 苏州派格力减排***有限公司 | Urea measuring jet pump in SCR (Selective Catalytic Reduction) system |
| JP2013013842A (en) * | 2011-07-01 | 2013-01-24 | Norio Ozaki | Filter for coating spray gun, and coating spray gun using the same |
| CN102648706A (en) * | 2012-05-10 | 2012-08-29 | 市下控股有限公司 | Pressure adjusting and stabilizing device for sprayer spray gun |
| CN103488195A (en) * | 2013-09-06 | 2014-01-01 | 浙江大学 | Method and device for building PWM spraying flow model |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107225057A (en) | 2017-10-03 |
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