CN107329501A - One kind spraying flow closed-loop control system - Google Patents
One kind spraying flow closed-loop control system Download PDFInfo
- Publication number
- CN107329501A CN107329501A CN201710701484.6A CN201710701484A CN107329501A CN 107329501 A CN107329501 A CN 107329501A CN 201710701484 A CN201710701484 A CN 201710701484A CN 107329501 A CN107329501 A CN 107329501A
- Authority
- CN
- China
- Prior art keywords
- flow
- valve
- control system
- loop control
- fluid
- 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.)
- Pending
Links
- 238000005507 spraying Methods 0.000 title claims abstract description 20
- 239000012530 fluid Substances 0.000 claims abstract description 34
- 230000001105 regulatory effect Effects 0.000 claims abstract description 20
- 230000001276 controlling effect Effects 0.000 claims abstract description 10
- 230000006641 stabilisation Effects 0.000 claims description 4
- 238000011105 stabilization Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 230000009123 feedback regulation Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
- G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means
Abstract
Flow closed-loop control system, including pump, flowmeter, check valve, flow regulating unit, flow controlling unit, fluid pressure transmitter and shower nozzle are sprayed the invention provides one kind；The pump is sequentially connected flowmeter, check valve, flow regulating unit, fluid pressure transmitter and shower nozzle by pipeline, the signal input part of the fluid pressure transmitter signal output part connection traffic control unit, the flow meter signal output end connects the signal input part of flow controlling unit.A kind of spraying flow closed-loop control system of the present invention, improves the efficiency of spraying operation, makes whole spraying operation more efficient.
Description
Technical field
The invention belongs to field of fluid control, flow closed-loop control system is sprayed more particularly, to one kind.
Background technology
It is very common using automatic spraying in spraying industrial production, it is the most difficult in automatic spraying
It is exactly accurate flow control, otherwise will result in the uneven phenomenon of lacquer painting, it is difficult to reach external coating requirement.Present market institute
The flow control used mainly has two ways, and one kind is to carry out coating pressure regulation using long-range coating pressure regulator valve, so as to change
Become the flow velocity of nozzle fluid, reach the control of fluid flow, this mode does not have reponse system, and flow shakiness will be directed at coating not
Uniformly, it is impossible to meet external coating requirement；Second is fed back using flowmeter, but all must be compact close inside flowmeter
Envelope, this will cause quick abrasion, and maintenance cost is high, and scavenging period is long, wastes more cleaning solvents；After flowmeter abrasion, it will lead
Cause conveying and metering inaccurate, cause flow control not accurate enough.
The content of the invention
In view of this, the present invention is directed to propose a kind of spraying flow closed-loop control system, makes flow control accurate, and tie
Structure is simple, with low cost.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
One kind spraying flow closed-loop control system, including pump, flowmeter, check valve, flow regulating unit, flow controlling unit,
Fluid pressure transmitter and shower nozzle；
The pump is sequentially connected flowmeter, check valve, flow regulating unit, fluid pressure transmitter and shower nozzle, institute by pipeline
The signal input part of fluid pressure transmitter signal output part connection traffic control unit is stated, the flow meter signal output end connects
Connect the signal input part of flow controlling unit；
The flow regulating unit includes being provided with valve pocket, institute in valve body, pressure regulating controller and pressure sensor, the valve body
State valve body to be provided with the fluid intake and fluid issuing communicated with valve pocket, valve body provided with valve element, the valve element connects proportioning valve,
Diaphragm is provided between the valve element and proportioning valve, pressure regulating controller is externally provided with valve body, the pressure sensor is arranged on
Fluid inlet end, the signal output part of the pressure sensor and the input of pressure regulating controller are connected, and the pressure is adjusted
The output end of section controller is connected with proportioning valve input.
Further, the check valve includes shell, O-ring, inner core, spring, vavle shelf, and the shell is connected with vavle shelf,
The inner core is connected with vavle shelf, and the spring is arranged between vavle shelf and inner core, and described shell one end is provided with seal, the O
Type circle is arranged on inner core, the O-ring and seal fitted seal.
Further, the inner core is provided with current stabilization hole.
Further, the seal is internal tapered hole.
Relative to prior art, a kind of spraying flow closed-loop control system of the present invention has the advantage that：
A kind of spraying flow closed-loop control system of the present invention is simple in construction, with low cost, using flow closed loop and pressure
Closed loop two ways, flow closed loop ensure that accurate flow control, and pressure closed loop provides the quick sound shadow of flow control, and
Overcoming the abrasion of former metering cylinder and gear pump, cleaning using the sharp mass flowmenter of Coriolis, thorough, corrective maintenance workload is not big
Shortcoming, improve the efficiency of spraying operation, make whole spraying operation more accurate.
Brief description of the drawings
The accompanying drawing for constituting the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its illustrate to be used to explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the structural representation described in the embodiment of the present invention；
Fig. 2 is the one-way valve structures schematic diagram described in the embodiment of the present invention.
Description of reference numerals：
1- pumps；2- flowmeters；3- check valves；301- vavle shelves；302- springs；303- shells；304- inner cores；305- current stabilizations hole；
306- seals；307-O type circles；4- diaphragms；5- valve elements；6- fluid pressure transmitters；7- shower nozzles；8- flow controlling units；9-
Pressure regulating controller；10- pressure sensors；11- proportioning valves；12- valve bodies.
Embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than indicate or dark
Specific orientation must be had, with specific azimuth configuration and operation by showing the device or element of meaning, therefore it is not intended that right
The limitation of the present invention.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating or implying phase
To importance or the implicit quantity for indicating indicated technical characteristic.Thus, the feature for defining " first ", " second " etc. can
To express or implicitly include one or more this feature.In the description of the invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
One kind spraying flow closed-loop control system, including pump 1, flowmeter 2, check valve 3, flow regulating unit, flow control
Unit 8 processed, fluid pressure transmitter 6 and shower nozzle 7；The pump 1 is sequentially connected flowmeter 2, check valve 3, flow by pipeline and adjusted
Save unit, fluid pressure transmitter 6 and shower nozzle 7, the signal output part connection traffic control unit 8 of fluid pressure transmitter 6
Signal input part, the signal output part of flowmeter 2 connects the signal input part of flow controlling unit 8；The flow is adjusted
Saving unit includes being provided with valve pocket, the valve body in valve body 12, pressure regulating controller 9 and pressure sensor 10, the valve body 12
12 provided with the fluid intake and fluid issuing communicated with valve pocket, and valve body 12 is interior to be provided with valve element 5, and the valve element 5 connects proportioning valve
11, diaphragm 4 is provided between the valve element 5 and proportioning valve 11, pressure regulating controller 9 is externally provided with valve body 12, the pressure is passed
Sensor 10 is arranged on fluid inlet end, the signal output part of the pressure sensor 10 and the input of pressure regulating controller 9
Connection, the output end of the pressure regulating controller 9 is connected with the input of proportioning valve 11.The check valve 3 include shell 303,
Inner core 304, spring 302, O-ring 307 and vavle shelf 301, the shell 303 are connected with vavle shelf, the inner core 304 and vavle shelf 301
Connection, the inner core 304 is provided with current stabilization hole 305, and the spring 302 is arranged between vavle shelf 301 and inner core 304, described outer
The one end of shell 303 is provided with seal 306, and the O-ring 307 is arranged on inner core 304, and the O-ring 307 is matched somebody with somebody with seal 306
Sealing is closed, the seal 306 is internal tapered hole.
A kind of spraying flow closed-loop control system of the present invention uses pressure and flow duplex feedback regulation flow, stream
Gauge 2 provides data on flows, and fluid pressure transmitter 6 provides pressure data, and duplex feedback data ensure the accurate of fluid flow
Control and fast-response control；Fluid is delivered to flowmeter 2 by pump 1, and stream is being transported to by check valve 3 by flowmeter 2
Measure adjustment unit, be finally delivered to shower nozzle 7, flowmeter 2 detects the flow of fluid, and by actually detected data on flows transmit to
Flow controlling unit 8, the detection flows adjustment unit of fluid pressure transmitter 6 is to the Fluid pressure between shower nozzle 7, and by actual inspection
The fluid pressure data of survey is transmitted to flow controlling unit 8, and flow controlling unit 8 is according to flow detection data and pressure detecting number
According to, and ratio calculating, output control analog signalses control electric Proportion valve are carried out with the flow value of default, and then control
Fluid pressure pressure regulator valve 3, control fluid flow is equal with default flow or within allowed band, so as to meet spray stream
The accurate control requirement of amount.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (4)
1. one kind spraying flow closed-loop control system, it is characterised in that：Including pump（1）, flowmeter（2）, check valve（3）, flow
Adjustment unit, flow controlling unit（8）, fluid pressure transmitter（6）And shower nozzle（7）；
The pump（1）Flowmeter is sequentially connected by pipeline（2）, check valve（3）, flow regulating unit, fluid pressure transmitter
（6）And shower nozzle（7）, the fluid pressure transmitter（6）Signal output part connection traffic control unit（8）Signal input part,
The flowmeter（2）Signal output part connection traffic control unit（8）Signal input part；
The flow regulating unit includes valve body（12）, pressure regulating controller（9）And pressure sensor（10）, the valve body
（12）It is interior to be provided with valve pocket, the valve body（12）Provided with the fluid intake and fluid issuing communicated with valve pocket, valve body（12）Inside set
There is valve element（5）, the valve element（5）Connect proportioning valve（11）, the valve element（5）With proportioning valve（11）Between be provided with diaphragm（4）,
Valve body（12）It is externally provided with pressure regulating controller（9）, the pressure sensor（10）Fluid inlet end is arranged on, the pressure is passed
Sensor（10）Signal output part and pressure regulating controller（9）Input connection, the pressure regulating controller（9）It is defeated
Go out end and proportioning valve（11）Input is connected.
2. a kind of spraying flow closed-loop control system according to claim 1, it is characterised in that：The check valve（3）Bag
Include shell（303）, inner core（304）, spring（302）, O-ring（307）And vavle shelf（301）, the shell（303）With vavle shelf
（301）Connection, the inner core（304）With vavle shelf（301）Connection, the spring（302）It is arranged on vavle shelf（301）With inner core
（304）Between, the shell（303）One end is provided with seal（306）, the O-ring（307）It is arranged on inner core（304）On, institute
State O-ring（307）With seal（306）Fitted seal.
3. a kind of spraying flow closed-loop control system according to claim 2, it is characterised in that：The inner core（304）On
Provided with current stabilization hole（305）.
4. a kind of spraying flow closed-loop control system according to claim 2, it is characterised in that：The seal（306）
For internal tapered hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710701484.6A CN107329501A (en) | 2017-08-16 | 2017-08-16 | One kind spraying flow closed-loop control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710701484.6A CN107329501A (en) | 2017-08-16 | 2017-08-16 | One kind spraying flow closed-loop control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107329501A true CN107329501A (en) | 2017-11-07 |
Family
ID=60200918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710701484.6A Pending CN107329501A (en) | 2017-08-16 | 2017-08-16 | One kind spraying flow closed-loop control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107329501A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109542130A (en) * | 2018-11-07 | 2019-03-29 | 广东震仪智能装备股份有限公司 | Ion nozzle flow control system and equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170366A (en) * | 2015-07-17 | 2015-12-23 | 深圳市泰达机器人有限公司 | Fluid closed loop flow control system |
| CN206224254U (en) * | 2016-11-18 | 2017-06-06 | 哈尔滨天顺化工科技开发有限公司 | A kind of carbon fibre precursor spinning volume control device |
-
2017
- 2017-08-16 CN CN201710701484.6A patent/CN107329501A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170366A (en) * | 2015-07-17 | 2015-12-23 | 深圳市泰达机器人有限公司 | Fluid closed loop flow control system |
| CN206224254U (en) * | 2016-11-18 | 2017-06-06 | 哈尔滨天顺化工科技开发有限公司 | A kind of carbon fibre precursor spinning volume control device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109542130A (en) * | 2018-11-07 | 2019-03-29 | 广东震仪智能装备股份有限公司 | Ion nozzle flow control system and equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171107 |
|
| RJ01 | Rejection of invention patent application after publication |