CN109566586A - Tunnel type sprayer and medical fluid recycling and control method - Google Patents
Tunnel type sprayer and medical fluid recycling and control method Download PDFInfo
- Publication number
- CN109566586A CN109566586A CN201910043192.7A CN201910043192A CN109566586A CN 109566586 A CN109566586 A CN 109566586A CN 201910043192 A CN201910043192 A CN 201910043192A CN 109566586 A CN109566586 A CN 109566586A
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- medical fluid
- valve
- liquid pump
- accumulator tank
- personal computer
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/0025—Mechanical sprayers
- A01M7/0032—Pressure sprayers
- A01M7/0042—Field sprayers, e.g. self-propelled, drawn or tractor-mounted
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/005—Special arrangements or adaptations of the spraying or distributing parts, e.g. adaptations or mounting of the spray booms, mounting of the nozzles, protection shields
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/0082—Undercarriages, frames, mountings, couplings, tanks
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
- A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
- A01M7/0089—Regulating or controlling systems
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Insects & Arthropods (AREA)
- Pest Control & Pesticides (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Mechanical Engineering (AREA)
- Special Spraying Apparatus (AREA)
Abstract
The present invention provides a kind of tunnel type sprayer and medical fluid recycling and control method, realization will not deposit during spray pesticide carries out recycling and reusing with the pesticide droplet of drift.It includes medical fluid recycling spraying system, and it includes water tank, filter, liquid pump I, pulse flowmeter I, sprayer unit, medical fluid accumulator tank, liquid pump II and pulse flowmeter II that medical fluid, which recycles spraying system,；Water outlet of water tank is connect through filter with the water inlet of liquid pump I, the overflow port of liquid pump I is connect with water tank water inlet, overflow valve oil inlet is connected to the overflow port of liquid pump I, overflow valve oil outlet is connected to overflow passage, the water outlet of liquid pump I is sequentially connected ratio shut-off valve, pressure maintaining valve, pulse flowmeter I, check valve and pressure gauge by pipeline, it is then divided into several spraying branches, each road is equipped with switch valve and several sprayer units, each medical fluid accumulator tank is corresponding to recycle branch equipped with a medical fluid, and each medical fluid recycling branch confluence is connect with water tank.
Description
Technical field
The present invention relates to spraying machines, and in particular to a kind of tunnel type sprayer and medical fluid recycling and control method belong to plant protection
Field of mechanical technique.
Background technique
In plant pest management measure, the application of pesticide control at present it is the most universal, especially in large-scale disease
Chemical pesticide effect is prominent in pest control, thus chemical pesticide control still occupies the principal status of public economy in plant protection field.
In existing plant protection operation, spraying machine is very widely used.But it is administered the drift that misses the target of process Chinese medicine liquid droplet
To cause pesticide utilization rate low and the principal element of pesticide waste, most medical fluids trickling to ground or drift to target with
Outside, while the pollutions of the ecological environments such as soil, water body is also resulted in.
Summary of the invention
To overcome the above deficiencies, the invention provides a kind of tunnel type sprayers and medical fluid to recycle controlling party
Method, realization will not deposit during spray pesticide carries out recycling and reusing with the pesticide droplet of drift, and the design can realize medicine
Detecting and controlling in liquid removal process automatically, very good solution application process Chinese medicine liquid drift and cause waste problem.
The present invention overcomes the technical solution used by its technical problem to be:
A kind of tunnel type sprayer including walking chassis, the dynamical system being arranged in walking chassis, is connect with dynamical system
Transmission system, setting spraying machine sprays frame in walking chassis, further includes medical fluid recycling spraying system, including water tank, filter, liquid pump
I, overflow valve, ratio shut-off valve, pressure maintaining valve, pulse flowmeter I, check valve, pressure gauge, switch valve, sprayer unit, medical fluid recycling
Slot, electromagnetic switch valve, liquid pump II and pulse flowmeter II；Water outlet of water tank passes through water inlet of the water lines through filter Yu liquid pump I
The overflow port of mouth connection, liquid pump I is connect by overflow passage with water tank water inlet, the overflow port of overflow valve oil inlet and liquid pump I
Connection, overflow valve oil outlet are connected to overflow passage, and the water outlet of liquid pump I is sequentially connected ratio shut-off valve, pressure stabilizing by pipeline
Valve, pulse flowmeter I, check valve and pressure gauge are then divided into several spraying branches, if each road equipped with switch valve and
Dry sprayer unit, each medical fluid accumulator tank is corresponding to recycle branch equipped with a medical fluid, and every medical fluid recycling branch road is successively
Equipped with recovery filter and electromagnetic switch valve, each medical fluid recycling branch confluence connects through liquid pump II and pulse flowmeter II and water tank
It connects；Each medical fluid accumulator tank is provided with the liquid level sensor of detection high-low water level；The power of liquid pump I and liquid pump II is by dynamical system
System provides.
The tunnel type sprayer preferred embodiment, it includes portal frame, elevating mechanism and slipping mechanism that spraying machine, which sprays frame,；Gantry
Frame structure includes the spray frame cross bar that two sprays erect bar and erection bar is sprayed in connection two, and spray erects between bar and spray frame cross bar equipped with electronic
Push rod II；Slipping mechanism includes the guide rail bracket being arranged in above gantry frame structure and can be along guide rail bracket by stepper motor driving
The sliding rack of sliding, sliding rack are equipped with sliding wheel and cooperate with guide rail bracket；Elevating mechanism includes fixed link, elevating mechanism rotation
Bar, elevating mechanism mobile bar successively hingedly constitute parallelogram sturcutre, and it is solid that I one end of electric pushrod is hingedly mounted on elevating mechanism
Fixed pole, the other end are hingedly mounted in elevating mechanism mobile bar, and two groups of elevating mechanisms are equipped with crane, and crane both ends pass through hinge
Lug connects two groups of elevating mechanisms, and electric pushrod III is equipped between guide rail bracket and crane.
The tunnel type sprayer preferred embodiment, spray erect bar periphery and are equipped with flow distribution plate, and spray frame bottom of upright rod is equipped with medical fluid
Accumulator tank.
The tunnel type sprayer preferred embodiment further includes control system, and control system includes industrial personal computer, with industrial personal computer
Liquid level acquisition module, electromagnetic switch valve control module, electric pushrod control module, the motor control mould of the medical fluid accumulator tank of connection
Block, flow collection module, proportional valve control module and hydraulic pump control module；The data measured are passed through liquid level by liquid level sensor
Acquisition module passes to industrial personal computer；The frequency data for the flowmeter that pulse flowmeter I and pulse flowmeter II count are adopted through flow
Collection module changes real-time traffic into and passes to industrial personal computer, and industrial personal computer is defeated by the liquid level acquisition module and flow collection module obtained
Control of the signal entered to electromagnetic switch valve, electric pushrod, shut-off valve and motor.
The tunnel type sprayer preferred embodiment, liquid level acquisition module use IPAM3802 high speed AD module；Flow collection
Module uses DAQM4302 high-speed pulse encoder；Electromagnetic switch valve control module uses, electric pushrod control module and hydraulic
Pump control module realizes the control of electric pushrod, II driving motor of electromagnetic switch valve and liquid pump using ZQWL series relay module
System；Motor control module uses WP-485-109QC drive control device；Proportional valve control module is exported using IPAM4404 module
Analog quantity realizes the control of comparative example shut-off valve by proportional controller.
A kind of tunnel type sprayer medical fluid recycling and control method, includes the following steps:
1) the peak level value and lowest water level value of the medical fluid of medical fluid accumulator tank are preset；
2) when boom sprayer farm work moves ahead, the liquid level data of liquid level sensor real-time measurement medical fluid accumulator tank, and
The liquid level data measured are sent to industrial personal computer, the frequency for the flowmeter that pulse flowmeter I and pulse flowmeter II count
Data change real-time traffic into through flow collection module and pass to industrial personal computer；
3) industrial personal computer analyzes the liquid level data sent, obtains the actual value of the medical fluid of medical fluid accumulator tank；
4) actual value currently measured is compared by industrial personal computer with preset setting peak level value and lowest water level value,
When there is any one liquid level sensor to monitor that the medical fluid of medical fluid accumulator tank reaches peak level setting value, control system control
The electromagnetic switch valve of respective branch is opened, while the driving motor starting of liquid pump II, realizes that corresponding level sensing is worked as in medical fluid recycling
When device monitors the water level of medical fluid accumulator tank lower than lowest water level setting value, the electromagnetic switch valve of respective branch is closed；When all
The solenoid valve of branch is in close state, and liquid pump II can just stop working.
The beneficial effects of the present invention are:
Realization will not deposit during spray pesticide carries out recycling and reusing with the pesticide droplet of drift, and the design can realize medicine
Detecting and controlling in liquid removal process automatically, very good solution application process Chinese medicine liquid drift and cause waste problem.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of tunnel type sprayer of the present invention；
Fig. 2 is a kind of structural schematic diagram of the spraying machine spray frame of tunnel type sprayer of the present invention；
Fig. 3 is a kind of schematic illustration of the medical fluid recycling spraying system of tunnel type sprayer of the present invention；
Fig. 4 is a kind of control system circuit schematic diagram of tunnel type sprayer of the present invention.
In figure, 1: dynamical system；2: transmission system；3: control system；4: walking domain；5: spraying machine sprays frame；6: seat；
7: water tank；8: liquid pump I；9: medical fluid accumulator tank；10: elevating mechanism；11: electric pushrod I；12: elevating mechanism fixed link；13: rising
Descending mechanism swingle；14: elevating mechanism mobile bar；15: hinged ear；16: stepper motor mounting rack；17: sliding wheel；18: sliding
Frame；19: sliding guide rail bracket；20: spray frame cross bar；21: electric pushrod II；22: spray erects bar；23: flow distribution plate；24: electric pushrod
Ⅲ；25: crane；26: filter；27: overflow valve；28: ratio shut-off valve；29: pressure maintaining valve；30: pulse flowmeter I；31: single
To valve；32: pressure gauge；33: switch valve；34: sprayer unit；35: recovery filter；36-1: electromagnetic switch valve I: 36-2: electromagnetism
Switch valve II；36-3: electromagnetic switch valve III；36-4: electromagnetic switch valve IV；37: liquid pump II；38: pulse flowmeter II.
Specific embodiment
For a better understanding of the skilled in the art, being done in the following with reference to the drawings and specific embodiments to the present invention
It is further described, it is following to be merely exemplary that the scope of protection of the present invention is not limited.
With reference to Fig. 1, a kind of tunnel type sprayer, including walking chassis 4, dynamical system 1, transmission system 2, spraying machine spray frame
5, medical fluid recycling spraying system and control system 3, walking chassis 4 are caterpillar chassis, and 4 rear portion of walking chassis is equipped with seat 6, are moved
Force system 1 is arranged in 4 front of walking chassis, and transmission system 2 is connect with dynamical system 1, and is located at 4 rear portion of walking chassis.
With reference to Fig. 2, it includes portal frame, elevating mechanism 10 and slipping mechanism that spraying machine, which sprays frame,；Gantry frame structure includes two sprays
It erects bar 22 and two spray of connection erects the spray frame cross bar 20 of bar 22, spray erects and is equipped with electric pushrod between bar 22 and spray frame cross bar 20
II21；Slipping mechanism includes the guide rail bracket 19 being arranged in above gantry frame structure and can be along guide rail bracket by stepper motor driving
The sliding rack 18 of 19 slidings, sliding rack 18 are equipped with sliding wheel 17 and cooperate with guide rail bracket 19；Elevating mechanism 10 include fixed link 12,
Elevating mechanism swingle 13, elevating mechanism mobile bar 14 successively hingedly constitute parallelogram sturcutre, I 11 one end of electric pushrod hinge
It connects and is mounted on elevating mechanism fixed link 12, the other end is hingedly mounted in elevating mechanism mobile bar 14, and two groups of elevating mechanisms are equipped with
Crane 25,25 both ends of crane connect two groups of elevating mechanisms by hinged ear 15, are equipped between guide rail bracket 19 and crane 25
Electric pushrod III 24.
With reference to Fig. 2, spray erects 22 periphery of bar and is equipped with flow distribution plate 23, and spray erects 22 bottom of bar and is equipped with medical fluid accumulator tank 9, do not sink
Long-pending and drift pesticide droplet enters medical fluid accumulator tank 9 by flow distribution plate 23.
With reference to Fig. 3, medical fluid recycles spraying system, including the cut-off of water tank 7, filter 26, liquid pump I 8, overflow valve 27, ratio
Valve 28, pressure maintaining valve 29, pulse flowmeter I 30, check valve 31, pressure gauge 32, switch valve 33, sprayer unit 34, medical fluid accumulator tank
9, electromagnetic switch valve, liquid pump II 37 and pulse flowmeter II 38；Water tank 7 is arranged in walking chassis 4, and 7 water outlet of water tank passes through
Water lines are connect through filter 26 with the water inlet of liquid pump I 8, and the overflow port of liquid pump I 8 passes through overflow passage and 7 water inlet of water tank
Connection, 27 oil inlet of overflow valve are connected to the overflow port of liquid pump I 8, and 27 oil outlet of overflow valve is connected to overflow passage, liquid pump I 8
Water outlet is sequentially connected ratio shut-off valve 28, pressure maintaining valve 29, pulse flowmeter I 30, check valve 31 and pressure gauge 32 by pipeline,
Several spraying branches are then divided into, each road is equipped with switch valve 33 and several sprayer units 34, each medical fluid recycling
Slot 9 is all corresponding to recycle branch equipped with a medical fluid, and every medical fluid recycling branch road is sequentially arranged with recovery filter 35 and electromagnetism is opened
Valve is closed, each medical fluid recycling branch confluence is connect through liquid pump II 37 and pulse flowmeter II 38 with water tank 7；Each medical fluid accumulator tank 9
It is provided with the liquid level sensor of detection high-low water level；The power of liquid pump I 8 and liquid pump II 37 is provided by dynamical system.This implementation
Corresponding 4 medical fluids of 4 medical fluid accumulator tanks 9 recycle branch in example, and electromagnetic switch valve includes I 36-1 of electromagnetic switch valve, electromagnetic switch
IV 36-4 of II 36-2 of valve, III 36-3 of electromagnetic switch valve and electromagnetic switch valve,
With reference to Fig. 4, control system include industrial personal computer, the medical fluid accumulator tank 9 being connect with industrial personal computer liquid level acquisition module, electromagnetism open
Close valve control module, electric pushrod control module, motor control module, flow collection module, proportional valve control module and hydraulic
Pump control module；Industrial personal computer is built-in industrial control machine；Liquid level sensor passes to the data measured by liquid level acquisition module
Industrial personal computer；The frequency data for the flowmeter that pulse flowmeter I 30 and pulse flowmeter II 38 count change into through flow collection module
Real-time traffic simultaneously passes to industrial personal computer, the signal pair that industrial personal computer passes through liquid level acquisition module and flow collection the module input obtained
The control of electromagnetic switch valve, electric pushrod, shut-off valve and motor.
In the present embodiment, liquid level acquisition module uses IPAM3802 high speed AD module；Flow collection module uses
DAQM4302 high-speed pulse encoder；The use of electromagnetic switch valve control module, electric pushrod control module and hydraulic pump control mould
Block realizes the control of electric pushrod, II driving motor of electromagnetic switch valve and liquid pump using ZQWL series relay module；Motor control
Molding block uses WP-485-109QC drive control device；Proportional valve control module exports analog quantity using IPAM4404 module, leads to
Cross the control that proportional controller realizes comparative example shut-off valve.There is high arm processor in the present embodiment inside modules, has
Higher response speed and execution efficiency, and each module passes through 485 buses and is connected to industrial personal computer, and passes through the height on industrial personal computer
Grade Language uniformly carries out the control of data acquisition and executing agency.
A kind of tunnel type sprayer medical fluid recycling and control method, includes the following steps:
1) the peak level value and lowest water level value of the medical fluid of medical fluid accumulator tank are preset；
2) when boom sprayer farm work moves ahead, the liquid level data of liquid level sensor real-time measurement medical fluid accumulator tank, and
The liquid level data measured are sent to industrial personal computer, the flowmeter that pulse flowmeter I 30 and pulse flowmeter II 38 count
Frequency data change real-time traffic into through flow collection module and pass to industrial personal computer；
3) industrial personal computer analyzes the liquid level data sent, obtains the actual value of the medical fluid of medical fluid accumulator tank；
4) actual value currently measured is compared by industrial personal computer with preset setting peak level value and lowest water level value,
When there is any one liquid level sensor to monitor that the medical fluid of medical fluid accumulator tank reaches peak level setting value, control system control
The electromagnetic switch valve of respective branch is opened, while the driving motor starting of liquid pump II, realizes that corresponding level sensing is worked as in medical fluid recycling
When device monitors the water level of medical fluid accumulator tank lower than lowest water level setting value, the electromagnetic switch valve of respective branch is closed；When all
The solenoid valve of branch is in close state, and liquid pump II can just stop working.
Above only describes basic principle of the invention and preferred embodiment, those skilled in the art can be according to foregoing description
Many changes and improvements are made, these changes and improvements should be within the scope of protection of the invention.
Claims (6)
1. a kind of tunnel type sprayer including walking chassis (4), the dynamical system (1) being arranged on walking chassis (4) and moves
The transmission system (2) of Force system (1) connection, setting spraying machine sprays frame in walking chassis (4), it is characterised in that: further includes medical fluid
Recycle spraying system, including water tank, filter, liquid pump I, overflow valve, ratio shut-off valve, pressure maintaining valve, pulse flowmeter I, unidirectional
Valve, pressure gauge, switch valve, sprayer unit, medical fluid accumulator tank, electromagnetic switch valve, liquid pump II and pulse flowmeter II；Water tank (7)
Water outlet is connect through filter (26) with the water inlet of liquid pump I (8) by water lines, and the overflow port of liquid pump I (8) passes through overflow pipe
Road is connect with water tank (7) water inlet, and overflow valve (27) oil inlet is connected to the overflow port of liquid pump I (8), overflow valve (27) oil outlet
It is connected to overflow passage, the water outlet of liquid pump I (8) is sequentially connected ratio shut-off valve (28), pressure maintaining valve (29), pulse by pipeline
Flow meter I (30), check valve (31) and pressure gauge (32) are then divided into several spraying branches, and each road is equipped with switch
Valve (33) and several sprayer units (34), each medical fluid accumulator tank (9) is corresponding to recycle branch, every medicine equipped with a medical fluid
Liquid recycling branch road is sequentially arranged with recovery filter (35) and electromagnetic switch valve, and each medical fluid recycling branch confluence is through liquid pump II (37)
It is connect with pulse flowmeter II (38) with water tank (7)；Each medical fluid accumulator tank (9) is provided with the level sensing of detection high-low water level
Device；The power of liquid pump I (8) and liquid pump II (37) is provided by dynamical system.
2. tunnel type sprayer according to claim 1, it is characterised in that: it includes portal frame, elevating mechanism that spraying machine, which sprays frame,
And slipping mechanism；Gantry frame structure includes the spray frame cross bar (20) that two sprays erect bar (22) and two spray of connection erects bar (22), spray
It erects and is equipped with electric pushrod II(21 between bar (22) and spray frame cross bar (20))；Slipping mechanism includes being arranged on gantry frame structure
The guide rail bracket (19) of side and can be along the sliding rack (18) of guide rail bracket (19) sliding, in sliding rack (18) by stepper motor driving
Cooperate equipped with sliding wheel (17) and guide rail bracket (19)；Elevating mechanism includes fixed link (12), elevating mechanism swingle (13), lifting
Mechanism mobile bar (14) successively hingedly constitutes parallelogram sturcutre, and electric pushrod I (11) one end is hingedly mounted on elevating mechanism
Fixed link (12), the other end are hingedly mounted on elevating mechanism mobile bar (14), and two groups of elevating mechanisms are equipped with crane (25), are risen
It drops frame (25) both ends and connects two groups of elevating mechanisms by hinged ear (15), be equipped between guide rail bracket (19) and crane (25) electronic
Push rod III (24).
3. tunnel type sprayer according to claim 2, it is characterised in that: spray erects 22 periphery of bar and is equipped with flow distribution plate (23),
Spray erects bar (22) bottom and is equipped with medical fluid accumulator tank (9).
4. tunnel type sprayer according to claim 2, it is characterised in that: it further includes control system, and control system includes
Industrial personal computer, the liquid level acquisition module for the medical fluid accumulator tank (9) being connect with industrial personal computer, electromagnetic switch valve control module, electric pushrod
Control module, motor control module, flow collection module, proportional valve control module and hydraulic pump control module；Liquid level sensor
The data measured are passed into industrial personal computer by liquid level acquisition module；Pulse flowmeter I (30) and pulse flowmeter II (38) system
The frequency data of the flowmeter of meter change real-time traffic into through flow collection module and pass to industrial personal computer, and industrial personal computer passes through acquisition
The control of liquid level acquisition module and the signal of flow collection module input to electromagnetic switch valve, electric pushrod, shut-off valve and motor.
5. tunnel type sprayer according to claim 4, it is characterised in that: liquid level acquisition module uses IPAM3802 high-speed AD
Module；Flow collection module uses DAQM4302 high-speed pulse encoder；The use of electromagnetic switch valve control module, electric pushrod control
Molding block and hydraulic pump control module are driven using ZQWL series relay module realization electric pushrod, electromagnetic switch valve and liquid pump II
The control of dynamic motor；Motor control module uses WP-485-109QC drive control device；Proportional valve control module uses
IPAM4404 module exports analog quantity, and the control of comparative example shut-off valve is realized by proportional controller.
6. a kind of any one of claim 1 to 5 tunnel type sprayer medical fluid recycling and control method, which is characterized in that including
Following steps:
1) the peak level value and lowest water level value of the medical fluid of medical fluid accumulator tank are preset；
2) when boom sprayer farm work moves ahead, the liquid level data of liquid level sensor real-time measurement medical fluid accumulator tank, and
The liquid level data measured are sent to industrial personal computer, the flow of pulse flowmeter I (30) and pulse flowmeter II (38) statistics
The frequency data of meter change real-time traffic into through flow collection module and pass to industrial personal computer；
3) industrial personal computer analyzes the liquid level data sent, obtains the actual value of the medical fluid of medical fluid accumulator tank；
4) actual value currently measured is compared by industrial personal computer with preset setting peak level value and lowest water level value,
When there is any one liquid level sensor to monitor that the medical fluid of medical fluid accumulator tank reaches peak level setting value, control system control
The electromagnetic switch valve of respective branch is opened, while the driving motor starting of liquid pump II, realizes that corresponding level sensing is worked as in medical fluid recycling
When device monitors the water level of medical fluid accumulator tank lower than lowest water level setting value, the electromagnetic switch valve of respective branch is closed；When all
The solenoid valve of branch is in close state, and liquid pump II can just stop working.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910043192.7A CN109566586A (en) | 2019-01-17 | 2019-01-17 | Tunnel type sprayer and medical fluid recycling and control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910043192.7A CN109566586A (en) | 2019-01-17 | 2019-01-17 | Tunnel type sprayer and medical fluid recycling and control method |
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| CN109566586A true CN109566586A (en) | 2019-04-05 |
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