CN106352461A - Micro-fog generation device with humidification amount automatically adjusted - Google Patents

Micro-fog generation device with humidification amount automatically adjusted Download PDF

Info

Publication number
CN106352461A
CN106352461A CN201610697382.7A CN201610697382A CN106352461A CN 106352461 A CN106352461 A CN 106352461A CN 201610697382 A CN201610697382 A CN 201610697382A CN 106352461 A CN106352461 A CN 106352461A
Authority
CN
China
Prior art keywords
water
pressure
temperature
controller
valve
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.)
Granted
Application number
CN201610697382.7A
Other languages
Chinese (zh)
Other versions
CN106352461B (en
Inventor
王超
林大烜
丁红兵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin University
Original Assignee
Tianjin University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianjin University filed Critical Tianjin University
Priority to CN201610697382.7A priority Critical patent/CN106352461B/en
Publication of CN106352461A publication Critical patent/CN106352461A/en
Application granted granted Critical
Publication of CN106352461B publication Critical patent/CN106352461B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/12—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/0008—Control or safety arrangements for air-humidification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Flow Control (AREA)

Abstract

The invention relates to a micro-fog generation device with the humidification amount automatically adjusted. The device comprises a controller, a reverse osmosis water treatment device (1), a water storage pond (4), an inflow water control electromagnetic valve (2), a liquid level instrument (3), a temperature-constant electric heating controller (12), a hydraulic diaphragm metering pump (15) and a high-pressure superfine nozzle (11). An outlet of the water storage pond (4) is communicated with the temperature-constant electric heating controller (12), water going out from the temperature-constant electric heating controller (12) and normal-temperature water of a bypass waterway are combined through a three-way confluence valve (13), and the pressure is increased after the combined water passes the hydraulic diaphragm metering pump (15); a temperature sensor (14) is arranged between the three-way confluence valve (13) and the hydraulic diaphragm metering pump (15); the controller controls the water temperature according to an input signal of the temperature sensor (14) and different opening proportions at the cold end and the hot end of the three-way confluence valve (13). The humidification amount of the micro-fog generation device can be adjusted.

Description

Micro- mist generation device that a kind of humidification amount automatically adjusts
Technical field
The present invention relates to humidifying technology field, micro- mist generation device that especially a kind of humidification amount automatically adjusts.
Background technology
The principle of high-pressure micro-mist humidifying technology is, using high-pressure plunger pump, hydraulic pressure is brought up to 3-8mpa, after then pressurizeing Water be delivered to professional atomizer through pressure duct and be atomized, be ejected in the middle of space with 1～15 μm of ultra micro droplet, mist Grain absorbs heat in atmosphere, and vaporization, evaporation, thus change the humidity of environment.
Existing high-pressure fog device is generally used for the large spaces such as Factory Building or the humidification of air-conditioning section, and discharge is big and technology Require coarse, low discharge difficult to realize, the high accuracy control of low humidity, be more dfficult to apply to the higher field of size droplet diameter requirement Close.Meanwhile, existing high-pressure micro-mist generating meanss water source directly takes from middle water or tap water mostly, and impurity containing ratio is higher, easily Cause the deposition of system pipeline impurity, also easily blocking is formed to trickle nozzle.Undressed normal-temperature water, its evaporation efficiency is low Down it is difficult to meet the purpose of humidity quick regulation；In addition, existing high-pressure micro-mist generating meanss automaticity relatively low it is impossible to Communicate with host computer or realize remote operation, this just brings difficulty to humidity control, malfunction elimination etc..
Content of the invention
The present invention provides a kind of adjustable micro- mist generation device of humidification amount.Technical scheme is as follows:
Micro- mist generation device that a kind of humidification amount automatically adjusts, including controller, anti-penetration wastewater disposal device (1), tank (4) water management electromagnetic valve (2), tank gage (3), constant temperature electrical heating controller (12), Hydraulic Diaphragm Metering Pump (15) and high pressure, are entered Minute nozzle (11), wherein,
Process water through anti-penetration wastewater disposal device (1) and enter tank (3), controller by entering water management electromagnetic valve (2) The cut-offfing so that storing up of level monitoring Signal Regulation water inlet electromagnetic valve (2) to tank (3) being inputted according to tank gage (3) The water level in pond (4) was maintained in normal range；
Outlet constant temperature electrical heating controller (12) of tank (4), from constant temperature electrical heating controller (12) out Water passes through the normal-temperature water interflow of three-way converging valve (13) and bypass waterway, and the water at interflow is pressed after Hydraulic Diaphragm Metering Pump (15) Power is lifted；
It is provided with temperature sensor (14), controller root between three-way converging valve (13) and Hydraulic Diaphragm Metering Pump (15) According to temperature sensor (14) input signal by water temperature is realized to the difference of three-way converging valve (13) cold and hot two ends folding ratio Control；
By the pressure lifts in pipeline to enough pressure, its outlet is pressure duct to Hydraulic Diaphragm Metering Pump (15), It is configured with ripple damper (6) in pressure duct, reach high pressure minute nozzle (11) through the water under high pressure of ripple damper (6) Pass through pressure gauge (7) before and pressure monitoring realized by pressure transmitter (8), ripple damper (6) is by for decompression protection Relief valve (5) is connected with tank (4)；Pressure duct rear end be sequentially connected high-pressure solenoid valve (9), one way stop peturn valve (10) with And high pressure minute nozzle (11), described micro- mist generation device also comprises converter and motor, and controller passes through Frequency Converter Control The rotating speed of motor, thus the reciprocating frequence changing Hydraulic Diaphragm Metering Pump (15) plunger realizes flow-control.
Micro- mist generation device that the humidification amount of the present invention automatically adjusts, have following a little:
1. anti-penetration wastewater disposal, detergent power is strong, and filter capacity reaches 0.0001 μm；
2. adopt Hydraulic Diaphragm Metering Pump as Flow-rate adjustment object, measuring accuracy is high, steady state accuracy up to 0.32%, Maximum pressure, up to 124bar, is capable of greater flow, the spraying of trickleer droplet requires；
3. the present situation of system temperature cannot be changed for existing high-pressure fog device, increase temp regulating function, thus plus Fast evaporation, effectively improves evaporation efficiency simultaneously, lifts evaporation effect；
4. adopt constant temperature hot water or cold water to collaborate mode, by adjusting converging valve two entrances aperture proportion adjustment water temperature, thus Avoid heating lag issues at this stage, improve thermoregulator rapidity；
5. high-pressure solenoid valve, one way stop peturn valve, the version of different model sum flow nozzle group disclosure satisfy that different mists Grain size, multiple spraying occasions of different flow, increase the scope of application.
Brief description
Fig. 1 is micro- mist generation device system process figure
Fig. 2 is flow and temperature control system principle schematic
Fig. 3 is flow and temperature control system block diagram
Fig. 4 system ambiguous pid control principle drawing
Specific embodiment
In order to be able to further appreciate that feature, technological means and the specific purposes being reached, the function of the present invention, tie below Close accompanying drawing the specific embodiment of the present invention is described in detail.
Referring to Fig. 1, micro- mist generation device that humidification amount automatically adjusts comprises anti-penetration wastewater disposal device 1, enters water management electromagnetism Valve 2, tank gage 3, tank 4, by the accurate monitoring to water level for the tank gage 3, automatically adjust water inlet electromagnetism by controller The cut-offfing so that water level was maintained in normal range of valve 2, when liquid level is less than Security alert water level, system stalls simultaneously send Sound and light alarm.The outlet constant temperature electrical heating controller 12 of tank, by the room temperature of three-way converging valve 13 and bypass waterway Hydration stream, realizes the control of water temperature according to the difference of the cold and hot two ends folding ratio of converging valve 13.The temperature of water can pass through temperature Sensor 14 is monitored.Hydraulic Diaphragm Metering Pump 15 both can accurately have been measured it is also possible to lift the pressure in pipeline Rise to enough pressure.The outlet of Hydraulic Diaphragm Metering Pump 15 is pressure duct, because reciprocating pump can produce in running Significantly pulse, configure a ripple damper 6 therefore in pressure duct, there is cushioning effect, pipe can be effectively reduced Water wave pulsation in road.In order to ensure pipeline safety it is necessary to make the pressure in pipeline using in safety range, pressure can be passed through Pressure monitoring realized by power table 7 and pressure transmitter 8.When hypertonia, system has mechanical decompression protection measure, by safety Valve 5 completes.After pressure duct, termination is high-pressure solenoid valve 9, one way stop peturn valve 10 and high pressure minute nozzle 11, high pressure nozzle It is divided into spiral-flow type and firing pin type, the droplet of two kinds of nozzle spray is of different sizes, different nozzle types can be selected according to humidification requirement Number.Micro- mist generation device that humidification amount automatically adjusts also comprises converter and motor, and converter is controlled by the frequency conversion way of output The rotating speed of motor, thus the reciprocating frequence changing metering pump plunger realizes flow-control.The control of system is complete by plc control system Become.Concrete flow, temperature control are as follows:
Referring to Fig. 2, dosing pump is reciprocating volume formula pump, as long as the stroke of plunger is fixed, then moves reciprocatingly every time Flow is fixing.Pump is by Motor drive, as long as the rotating speed of precise control motor just can realize the precise control of flow.System Flow can enter line parameter conversion and obtain by calculating to the tachometric survey of motor.In pressure duct, compare due to existing Significantly flow pulsation, therefore, the change of pipeline pressure convection current amount can produce the larger interference of ratio, carries out feedforward control to this interference System.In sum, the flow-control in system adopts feedforward and feedback to control.The feedforward can to system quick regulation, and Feedback control can reduce the requirement of feed-forward compensator, improve control accuracy simultaneously.
Water on major loop improves and maintains uniform temperature, system by what constant temperature electrical heating controller realized temperature Temperature adjustment then pass through adjust hot and cold two end entrances of three-way converging valve ratio realize.In order to adjust and maintain in pipeline Water temperature, is provided with a temperature transmitter tc with digital display in pipeline, can complete temperature single loop feedback control.Due to water Temperature is affected larger by current, when downstream water demand amount changes, forms larger interference to the water temperature of internal system, temperature with Setting value can be deviateed.Controller accepts changes in flow rate signal ft, changes the hot and cold two ends folding ratio of converging valve after computing, Thus changing the combined amount of hot and cold water, realize temperature control tc of system.According to upper described, using feedforward and feedback control structure pair System water temperature is realized controlling.
Referring to Fig. 4, in flow, temperature control loop, r1S () is flow system flow setting value, gc1S () is flow-control Device, gff1S () is flow feedforward controller, d1S () is loine pressure disturbance, gp1S () is flow-control output, y1S () is stream Amount output, h1S () is flow feedback, indirectly drawn by measuring the measurement of revolution speed.Feed-forward signal is present in feedback controller Afterwards, in the presence of disturbance, system is output as:
y1(s)=gd1(s)d1(s)+gff1(s)gp1d1(s)-h1(s)gc1(s)gp1y1(s)
Then output flow to the closed loop transfer function of pressure disturbance is
y 1 ( s ) d 1 ( s ) = g d 1 ( s ) + g f f 1 ( s ) g p 1 1 + h 1 ( s ) g c 1 ( s ) g p 1 .
r2S () is system temperature setting value, gc2S () is temperature controller, gff2S () is temperature feed-forward controller, gp2(s) For temperature control output, y2S () exports for temperature, h2S () is Temperature Feedback.Because flow forms interference to temperature control, because In this temperature control system block diagram, flow output is temperature controlled disturbance input.Disturbance also exists in feedback controller Afterwards, under perturbation action, system is output as:
y2(s)=gd2(s)y1(s)+gff2(s)gp1y1(s)-h2(s)gc2(s)gp2y2(s)
Then output temperature to the closed loop transfer function of flow rate disturbance is
y 2 ( s ) y 1 ( s ) = g d 2 ( s ) + g f f 2 ( s ) g p 2 1 + h 2 ( s ) g c 2 ( s ) g p 2 .
Referring to Fig. 4, the precise control of dosing pump depends on the constant-speed operation of motor, and internal pipe pressure change has non-thread Property and uncertainty, therefore controller adopts common pid to be difficult to realize regime flow and controls.Numerous for controlled device disturb Reason element and controller high performance requirements, the system conventional delta formula pid control on the basis of, in conjunction with fuzzy control strategy, Using fuzzy control method, improve the robustness of system.When systematic error than larger when, controller need accomplish can quickly with Track；And when deviation ratio is less, controller needs to realize motor precise control thus realizing the stable, precise control of flow again. Because this two control requirement not in same time domain, if pursuing merely fast track, easily vibrating, surpassing in deviation hour Adjust；Whereas if simple pursue the degree of accuracy controlling, then can sacrifice than larger control time it is impossible to meet fast and accurately Require.In Fuzzy Pid Control System structure, r1K () represents controlled motor rotating speed of target, y1K () represents controlled motor actual speed Output, e (k) represents r1(k) and y1K the difference between (), u (k) represents the output control amount of fuzzy controller, then this controller In control variable quantity be:
δ u (k)=u (k)-u (k-1)=(kp+ki+kd)e(k)+(-kp-2kd)e(k-1)+kde(k-2)
Only relevant with the sampled value of nearest three times, be not required to associate whole state in the past, improve control reliability and Stability.Now fuzzy pid controller and its parameter tuning are introduced.
The control parameter of fuzzy pid controller can belong to two dimension controller according to fuzzy rule come reasoning.It inputs and is The flow setting value of system and the rate of change δ e of deviation e of actual value and flow deviation, are output as ratio, integration, differential parameter The size δ k of effectp、δki、δkd.Its tuning process is first to find out the fuzzy pass of conventional delta formula pid parameter and e and δ e System, ceaselessly carries out test and improves this fuzzy relation, simultaneously further according to this fuzzy relation to δ kp、δki、δkdThree parameters Carry out on-line tuning, in input pid controller, parameter is modified, obtains new kp、ki、kd.The input of the system, output Variable Linguistic Value is { nb, nm, ns, zo, ps, pm, pb }, that is, bear big, negative in, negative little, zero, just little, center, honest.Deviation e and The domain of deviation variation rate δ e takes [- 3,3], δ kpDomain take [- 0.3,0.3], δ kiDomain take [- 0.06,0.06], δ kdDomain take [- 3,3].The pid control parameter adjusting out by this method is capable of quick, stable control action, has Effect improves the capacity of resisting disturbance of system, enhances the control performance of system.
Above-mentioned specific embodiment is that the technical scheme to assembly of the invention structure and control strategy etc. is solved in detail Release, the present invention is not limited solely to above-described embodiment journey, for persons skilled in the art, according to above-mentioned principle and spirit Improve on the basis of the present invention, replace, broadly fall within the scope of the present invention.

Claims (1)

1. micro- mist generation device that a kind of humidification amount automatically adjusts, including controller, anti-penetration wastewater disposal device (1), tank (4) water management electromagnetic valve (2), tank gage (3), constant temperature electrical heating controller (12), Hydraulic Diaphragm Metering Pump (15) and high pressure, are entered Minute nozzle (11).Wherein,
Through anti-penetration wastewater disposal device (1) process water by enter water management electromagnetic valve (2) enter tank (3), controller according to Level monitoring Signal Regulation water inlet electromagnetic valve (2) to tank (3) that tank gage (3) inputs cut-off so that tank (4) water level was maintained in normal range；
Outlet constant temperature electrical heating controller (12) of tank (4), leads to from constant temperature electrical heating controller (12) water out Cross the normal-temperature water interflow of three-way converging valve (13) and bypass waterway, the water at interflow pressure quilt after Hydraulic Diaphragm Metering Pump (15) Lifting；
It is provided with temperature sensor (14) between three-way converging valve (13) and Hydraulic Diaphragm Metering Pump (15), controller is according to temperature The input signal of degree sensor (14) by realizing the control of water temperature to the difference of three-way converging valve (13) cold and hot two ends folding ratio System；
By the pressure lifts in pipeline to enough pressure, its outlet is pressure duct to Hydraulic Diaphragm Metering Pump (15), in high pressure Be configured with ripple damper (6) in pipeline, through ripple damper (6) water under high pressure before reaching high pressure minute nozzle (11) Pressure monitoring is realized by pressure gauge (7) and pressure transmitter (8), ripple damper (6) is by the safety for decompression protection Valve (5) is connected with tank (4)；It is sequentially connected high-pressure solenoid valve (9), one way stop peturn valve (10) and height in pressure duct rear end Pressure minute nozzle (11), described micro- mist generation device also comprises converter and motor, and controller passes through Frequency Converter Control motor Rotating speed, thus the reciprocating frequence changing Hydraulic Diaphragm Metering Pump (15) plunger realizes flow-control.
CN201610697382.7A 2016-08-18 2016-08-18 A kind of micro- mist generation device of humidification amount automatic adjustment Expired - Fee Related CN106352461B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610697382.7A CN106352461B (en) 2016-08-18 2016-08-18 A kind of micro- mist generation device of humidification amount automatic adjustment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610697382.7A CN106352461B (en) 2016-08-18 2016-08-18 A kind of micro- mist generation device of humidification amount automatic adjustment

Publications (2)

Publication Number Publication Date
CN106352461A true CN106352461A (en) 2017-01-25
CN106352461B CN106352461B (en) 2018-11-06

Family

ID=57844327

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610697382.7A Expired - Fee Related CN106352461B (en) 2016-08-18 2016-08-18 A kind of micro- mist generation device of humidification amount automatic adjustment

Country Status (1)

Country Link
CN (1) CN106352461B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111365796A (en) * 2018-12-26 2020-07-03 青岛华云空气科技有限公司 Improved high-pressure micro-fog humidifying equipment host machine setting and working principle
CN113134440A (en) * 2021-04-09 2021-07-20 北京农业智能装备技术研究中心 Spray control device
CN113280499A (en) * 2021-06-30 2021-08-20 深圳市英威腾网能技术有限公司 Condensed water treatment device and control method thereof
CN113303488A (en) * 2021-04-25 2021-08-27 北京农业智能装备技术研究中心 Tobacco moisture regain control system
CN114563492A (en) * 2022-01-24 2022-05-31 中煤科工集团沈阳研究院有限公司 Gas sensor inspection device for pipeline and test method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007139403A (en) * 2005-10-19 2007-06-07 Sanki Eng Co Ltd Proportional control method and device for two-fluid flow water jet nozzle
CN201461354U (en) * 2009-06-15 2010-05-12 上海远动科技有限公司 Variable frequency regulation closed-loop control system of water pump
CN104696706A (en) * 2015-01-20 2015-06-10 哈尔滨工业大学 Micro fluid flow adjusting device based on air pressure drive
CN105157146A (en) * 2015-10-26 2015-12-16 湖南华强文化科技有限公司 Cold mist system
CN105222250A (en) * 2015-08-27 2016-01-06 西安工程大学 Be applicable to the evaporative cooling spraying system of open parking ground and monitoring booth

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007139403A (en) * 2005-10-19 2007-06-07 Sanki Eng Co Ltd Proportional control method and device for two-fluid flow water jet nozzle
CN201461354U (en) * 2009-06-15 2010-05-12 上海远动科技有限公司 Variable frequency regulation closed-loop control system of water pump
CN104696706A (en) * 2015-01-20 2015-06-10 哈尔滨工业大学 Micro fluid flow adjusting device based on air pressure drive
CN105222250A (en) * 2015-08-27 2016-01-06 西安工程大学 Be applicable to the evaporative cooling spraying system of open parking ground and monitoring booth
CN105157146A (en) * 2015-10-26 2015-12-16 湖南华强文化科技有限公司 Cold mist system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111365796A (en) * 2018-12-26 2020-07-03 青岛华云空气科技有限公司 Improved high-pressure micro-fog humidifying equipment host machine setting and working principle
CN113134440A (en) * 2021-04-09 2021-07-20 北京农业智能装备技术研究中心 Spray control device
CN113134440B (en) * 2021-04-09 2022-03-01 北京农业智能装备技术研究中心 Spray control device
CN113303488A (en) * 2021-04-25 2021-08-27 北京农业智能装备技术研究中心 Tobacco moisture regain control system
CN113280499A (en) * 2021-06-30 2021-08-20 深圳市英威腾网能技术有限公司 Condensed water treatment device and control method thereof
CN114563492A (en) * 2022-01-24 2022-05-31 中煤科工集团沈阳研究院有限公司 Gas sensor inspection device for pipeline and test method

Also Published As

Publication number Publication date
CN106352461B (en) 2018-11-06

Similar Documents

Publication Publication Date Title
CN106322654B (en) Micro- mist generation device control method based on fuzzy
CN106352461B (en) A kind of micro- mist generation device of humidification amount automatic adjustment
CN103771553B (en) The adaptive fuzzy control method of wet flue gas desulfurization waste water evaporation process
CN108224404B (en) Boiler drum water level control method
CN104061818A (en) Temperature-control and energy-saving circulating water operation system
CN101709869A (en) Hybrid control method for superheat steam temperature system of coal-fired boiler
CN102641803A (en) Single flowmeter type digital spraying system for robot
CN101709863B (en) Hybrid control method for furnace pressure system of coal-fired boiler
CN105320169A (en) A sterilization and disinfection solution preparing device and a mixed liquor PH value regulating and controlling method
CN102736640A (en) System and method for controlling water level of deaerator
CN201086055Y (en) Spray coating control system for mineral wool acoustic board surface
CN202281311U (en) Flow regulating system of heating radiator thermal property detection device
CN102455718A (en) Temperature control system in catalyst production device, temperature control method and application of temperature control system
CN105487377A (en) Fuzzy controller of denitrated urea pyrolysis process
CN101301538A (en) Fuzzy intelligent control system for casting water processing medicament
CN203201882U (en) Jet pump system regulated based on PID
CN203980439U (en) Heat measuring system auto hydraulic balance control device
CN116007716A (en) Measuring device and measuring method for high-stability tiny liquid flow source
Aravind et al. Simulation based modeling and implementation of adaptive control technique for Non Linear process tank
CN202538993U (en) Single-flowmeter type digital spray system for robot
CN101696660A (en) Method for controlling air-fuel ratio of fuel gas generator set
Deng et al. Constant pressure control for variable-rate spray using closed-loop proportion integration differentiation regulation
CN203502856U (en) Constant-temperature and energy-saving automatic control device of oil storage tank
CN202811158U (en) Rail pressure adjusting device used for testing high-pressure oil pump
JPS6345177B2 (en)

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20181106

Termination date: 20210818