CN201373383Y - Water level display and control device of marine supercharged boiler - Google Patents
Water level display and control device of marine supercharged boiler Download PDFInfo
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- CN201373383Y CN201373383Y CN200820230564U CN200820230564U CN201373383Y CN 201373383 Y CN201373383 Y CN 201373383Y CN 200820230564 U CN200820230564 U CN 200820230564U CN 200820230564 U CN200820230564 U CN 200820230564U CN 201373383 Y CN201373383 Y CN 201373383Y
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Abstract
The utility model relates to a water level display and control device of a marine supercharged boiler, which comprises a sensor, a switching box, a monitoring box, a flow control valve and the like. A differential pressure transmitter is selected as the sensor. The switching box supplies power to the monitoring box and the sensor and switches all signal lines. The panel of the monitoring box is provided with a power indicator, a failure alarm indicator, a power switch button, an output interface which can be externally connected with an alarm buzzer, a driving circuit and a water level control signal output interface. The upper part of the panel is provided with four water level output channel simulation meters, and the middle is provided with an LCD, and an alarm silencing button, a self-testing button and a reset button are arranged below the panel. A data acquisition board and a data processing device are arranged in the monitoring box. The water level display and control device of the marine supercharged boiler has the advantages of adopting redundancy design for the power supply which easily has faults, water level display and control so that the cost performance is higher, and capability of automatically identifying the changes to the normal water level signal or abnormal water level signal, and is applicable to the water level display and control of the marine supercharged boiler.
Description
Affiliated technical field
The utility model relates to a kind of boiler water level and shows and control device, particularly relates to a kind of Turbo-charged Marine Boiler water level and shows and control device.
Background technology
The water level control and the demonstration of boiler, it is imperative equipment in the safe operation of the boiler, comparatively simple Displaying Meter is a glass water gauge, and it can show directly that pot protects interior water level, but does not possess the control function, complicated slightly is the teletransmission secondary meter that has the control function, its water level signal detects, and adopts indirect modes such as float-type or inductance type more, and it can not directly read water level, can only examine side and go out the signal of telecommunication that the water level friendshipization causes, and error is very big.
In the prior art, the patent No. is the utility model patent " the boiler water level electronics shows and control device " of 95204563.X, has above-mentioned boiler safety automatic control and water level Presentation Function, and it is made of level sensor and control cabinet.Comprise A/D converter in the control cabinet, display circuit, control circuit, control function indicating circuit and executive circuit, it can be respectively protects " RUN " and " banking fire " state to water level autocontrol at pot.Especially when utmost point low water level, can close air blast automatically, and carry out blowing out.But to boiler pressure, environmental condition requires harsh, makes its application be subjected to certain restriction, and the use on boats and ships is difficulty especially.
In addition, the false water level problem in the water level meter of prestige rib safe operation of the boiler, up to today, also being provided with a kind of instrument can be discerned and it be detected.At present both at home and abroad to the research major part of boiler water level dynamic characteristic about station boiler, and also very not enough to the research of ship-boiler water level dynamic characteristic.Marine boiler compare with station boiler have that inertia is little, dynamic change is big, start and stop and characteristics such as increasing and decreasing load is frequent, the related and restraining factors of each subsystem are many; Turbo-charged Marine Boiler is compared with non pressurized boiler, and the influence of these factors is more obvious.When boats and ships navigate by water in addition, often there are to a certain degree heel and trim in having load and high sea, boiler drum level is had a significant impact.
Summary of the invention
The purpose of this utility model provides a kind of by the two-way water level signal being handled and identification decision in addition, boiler water level is monitored, particularly false water level is discerned, and the Turbo-charged Marine Boiler water level of the operation of control boiler shows and control device.
The technical solution of the utility model is: be made up of sensor, transfer box, monitoring case, flow control valve; Differential pressure transmitter is a sensor, is loaded on the boiler casing, and has water pipe and boiler to join; Transfer box is positioned at the cabin; The monitoring case is positioned at central station of floating dock console next door, links to each other with centralized control console of engine room with Serial Port Line; Be provided with data acquisition board and data processing equipment in the monitoring case.
Adopt the method for water level compensation, selecting differential pressure transmitter for use is sensor, is loaded on the boiler casing, and have water pipe and boiler to join, gather boiler water level, steam pressure, signals such as superheat steam temperature are gathered these signals and are transferred signal to 4 to 20mA current signal, pass to data processing equipment.
Transfer box is positioned at the cabin, comprise two-way drum pressure input signal interface, two-way superheater pressure reduction input signal interface, two-way superheater vapor (steam) temperature input signal interface, two-way burner hearth burning indication input signal interface, the flame-out indication of two-way input signal interface transfer box.Adopting transfer box is in order to have guaranteed the convenience of Arrangement of Engine-room and system maintenance.
Power supply in the transfer box is supplied with by Ship Electrical Power System and Emergency power supply unit, and power type is: larboard, starboard power supply are 220V, 50Hz, and emergency power supply is 24V direct current, 90VA.Wherein the PC104 mainboard needs 5 volts of power supplys, and sensor needs power supply 24V power supply, and display screen needs the 12V power supply, the positive and negative 15V power supply that needs two-way to isolate on the data acquisition board, one road 5V power supply.Therefore for conserver power source module as far as possible, transfer external power to 24 volt through Switching Power Supply earlier, and then the corresponding modular power source of process transfers required voltage to.Connect power supply by the power switch on the control panel, the data acquisition board power supply of 5V and the probe power of 24V can be provided simultaneously.Served as voltage magnitude when very high, piezoresistor in the circuit is with overvoltage Limiting (less than equipment withstand voltage) on lower level, dash current by piezoresistor is very big simultaneously, make the piezo-resistance deterioration, at this moment the electric current by fuse is bigger, fuse disconnects, and has so both made electric equipment, components and parts avoid overvoltage and has impacted, and also can avoid causing line short because the deterioration of piezoresistor punctures.
For the antijamming capability of assurance device, selected power-supply filter for use, it is a low pass filter.The bilateral network that utilizes passive elements such as electric capacity, inductance to constitute suppresses the interference on the power line.Its filter range provides to reach as high as more than the 100dB to the interfering signal in this frequency band range and decays usually between 0.015-50MHz.
The monitoring case is positioned at central station of floating dock console next door, have on the panel power supply indicator, fault alarm indicator lamp, power switch button, can external alarm buzzer the output interface of output interface, drive circuit and water level control signal; Four water level output channel simulation tables are equipped with on panel top, and LCDs is installed at the middle part, and ann silence button, self check button, SR also are equipped with in the panel bottom; Be provided with data acquisition board and data processing equipment monitoring case in the monitoring case.Four water level output channel simulation tables on panel top, input voltage range is positive and negative 5V, shows the boiler water place value respectively, and the level sensor signal is intuitively shown, can compare with actual sensor signal like this.This output channel simulation table was shown as 0 o'clock, and indicated water level is a middle water level.LCDs is installed at the middle part, and the displaying contents during operate as normal has: the light beam demonstration of boiler water level, drum steam pressure, superheater pressure reduction, the isoparametric numerical value of superheat steam temperature show; Disposed other dynamic menus and be used for the operational factor demonstration of adjusting, the self check flow process shows, data transmission interface, the warning interface when all kinds of water levels are undesired etc.Ann silence button, self check button, SR also are equipped with in the panel bottom.The ann silence button cuts out audible alarm for the user when system alarm, the indicator lamp on the display screen can become Chang Liang by flicker at this moment; The self check button checks whether control cabinet normal for operating personnel, press the self check button after, the self check picture will appear in display screen, the state of will resuming work after self check is intact; SR occurs the undesired system that resets for operating personnel in system.Monitoring box also leaves the serial communication interface, by with the mechanics of communication of cabin Centralized Monitoring platform, be implemented in the control that realizes on the Centralized Monitoring platform of cabin system, utilize the simulation software of exploitation to carry out the emulation of malfunction, improve boiler operatiopn management and troubleshooting capability.
Be provided with data acquisition board and data processing equipment in the monitoring case.A/D convertor circuit is arranged, analogue quantity output circuit, DA change-over circuit, switching value output circuit etc. on the data acquisition board.A/D convertor circuit, analogue quantity output circuit all link to each other with signal wire interface, and the DA change-over circuit links to each other with PC104 bus, flow control valve signaling interface line, and the switching value output circuit links to each other with PC104 bus, switching value signaling interface line.The address wire of PC104 links to each other by the data wire of address decoder with LTC1606 with data wire, the output signal of address decoder ADDR is passed through with write signal WR or is linked to each other with the conversion output pin R/C of LTC1606 behind the door, the decoder output signal enters two and door with read signal RD warp or signal behind the door with above-mentioned signal simultaneously, and the sheet that is connected to LTC1606 selects output pin CS.Data processing equipment adopts SED-486SN type PC/104CPU module, data can be sent to centralized control console of engine room by Serial Port Line, makes things convenient for administrative staff's operation.
In A/D convertor circuit, A/D converter is the acp chip of data acquisition board, and it directly has influence on the quality quality of image data.Require A/D converter to change, and can reach the above sample frequency of single channel 125K the boiler water level monitor signal.Be the acquisition precision of assurance system, the LTC1606 chip that has adopted LINEAR company to produce to water level signal.This chip is to have 16 ultra high speed A chips that sampling keeps function, the resolution ratio height, and sampling rate height, power consumption are little.The variation change of BYTE pin level can be used in the high byte of chip transformation result output line and the position of low byte, and the equal energy of the microprocessor of LTC1606 chip and 16 bit data bus and 8 bit data bus interface can satisfy different application scenarios like this.
The LTC1606 chip selects under the acting in conjunction of output pin CS and conversion output pin R/C at sheet, can there be two kinds of situations to begin an A/D conversion, one of them is to select output pin CS to be fixed as low level when sheet, in the A/D conversion of pulse trailing edge startup of conversion output pin R/C.Should negative saltus step pulse should continue 40ns at least, and maximum pulse should be no more than 6 μ s.After an A/D conversion starts, converter state indication pin BUSY will become low level and keep converting until this.When converter state indication pin BUSY was low level, new conversion command was with inoperative.Before converter state indication pin BUSY uprised, conversion output pin R/C and sheet selected output pin CS must become height, otherwise will start once invalid transfer process.The transformation result of LTC1606 chip is with the form and the line output of the complement of two's two's complement.Transformation result can read by 16 of words, also can read at twice by 8 of bytes.After once converting, transformation result is sent into output register and is latched.When and if only if conversion output pin R/C is high level and sheet selected output pin CS for low electricity, transformation result just can be read.The another kind of mode that begins an AD conversion is when conversion output pin R/C pin is low level, selects the pulse trailing edge of output pin CS pin to start an A/D conversion at sheet.Should negative saltus step pulse should continue 40ns at least, and maximum pulse should be no more than 6 μ s.After starting the AD conversion, according to sequential chart, for reading the AD translation data, only need to produce a low level at conversion output pin R/C pin when retention tab selects output pin CS to be high level, this mode is identical with first kind of situation to the requirement of negative saltus step pulse.Select the low level of output pin CS to enable the AD conversion with sheet, CPU sends the order of writing to AD converter earlier, address gating signal and write signal WR are mutually or the low level signal that forms, make conversion output pin R/C become low level, this low level signal is through making sheet select output pin CS to become low level with door, the combination of these two signals, start the AD conversion, then by behind the signal that inquires the AD EOC, CPU sends read command, equally, address gating signal and read signal RD mutually or the low level signal that forms make conversion output pin R/C become low level, and this low level signal is through making sheet select output pin CS to become low level with door, the combination of these two signals makes translation data can be read into internal memory.When conversion output pin R/C is low level, start an A/D conversion, select the negative saltus step pulse of output pin CS should continue 40ns at least at sheet.Select output pin CS input to increase by one and door at sheet, can make conversion output pin R/C and sheet select this signal interval of low level on the output pin CS to increase to 14nS like this, better meet the sequential requirement of AD conversion, guaranteed the reliability of AD conversion.
In the DA change-over circuit, this circuit is finished control signal and is converted to voltage signal by the analog output channel and goes to control corresponding executing agency.The output interface of controller adopts 8 D/A conversion chip DAC0832.This converter constitutes the two-stage data input latch by input register and DAC register.During use, the two-stage that can adopt data input data line D0-7 latchs (twin-lock is deposited) mode, or single-stage latchs, and (one-level latchs, one-level is straight-through) mode, or directly input (two-stage is straight-through) mode, in addition, form register output control logic circuit by three AND circuits, the function of this logic circuit is to carry out data to latch control, and when LE=0, the input data are latched; When LE=1, the data of input are followed in the output of latch.The D/A change-over circuit is the T type resistor network of a R-2R, realizes the conversion of 8 bit data.The utility model adopts direct input mode.This mode is suitable in the continuous feedback control circuit, data latch and allow signal ILE to connect high level, sheet selects output pin CS, the first write signal WR1, the second write signal WR2, data to transmit control signal XFER and connects low level, make all control signals (the first write signal WR1, the second write signal WR2, data latch and allow signal ILE, data to transmit control signal XFER) all effective, the first current output signal Iout1, the second current output signal Iout2 transfers voltage signal Vout to behind operational amplifier, and is sent to corresponding executing agency.
When operation, can enter analog quantity calibration flow process by keyboard operation.Analog quantity enters controller through the measurement of sensor, transmitter, what explain in words for temperature that sensor measures is resistance, the output of transmitter is current signal for flow, pressure, valve position, and the currency of the final temperature displayed of controller is degree centigrade, the currency of flow is ton/hour, the currency of pressure is a MPa, and the currency of valve position is a percentage.Between this tittle and sensor resistance of coming in and the electric current mapping relations are just arranged so, controller just could be from the measurement of sensor by calculating the currency of analog quantity by these mapping relations.Analog quantity calibration flow process can not onlinely be carried out, and promptly can not calibrate in boiler operatiopn, only need carry out once just passable before system puts into operation.Mainly check the analog quantity input signal during calibration, adjust the zero point of sensor.Should be specifically noted that during adjustment that when the sensor zeroing that pressure guiding pipe is arranged will note making and fill with water in the pressure guiding pipe, and the pressure that water column produces is eliminated, if the pipe internal memory has air, then when pressure rises, differential pressure can produce very big error in corresponding sensor.
In analogue quantity output circuit, be connected into anti-phase input circuit with two operational amplifiers, this circuit has satisfied display precision and requirement easy to adjust preferably, but because there is virtual earth in anti-phase input circuit, therefore the common-mode rejection ratio to operational amplifier requires low, and the circuit adjustment becomes very convenient, because the input resistance of this circuit is not high, adopted high input impedance amplifier TL084, it is to adopt technotron to do the integrated transporting discharging of input stage, the bipolarity input, input impedance is greater than 109 ohm, and conversion speed is also than higher.
Throw as the preceding zero point and the range that should require adjust the simulation table of operation according to reality, the input current of monitoring case is 4-20mA, the precision resistance that signal circuit is selected for use is 220 Ω, if require the simulation table to be shown as a 5V----+SV, should be 2.84 so can try to achieve the multiplication factor of first amplifier, when electric current is 4mA, through the voltage behind first amplifier be-2.5V, voltage was worth for this reason after the resistance of adjusting R1 made amplifier, and then regulate the R4 resistance of second amplifier, make the simulation table be shown as 0V, promptly finished the calibration of simulation table.
In address decoding circuitry, adopt 74HC688 in conjunction with 7 toggle switch, the port address that this method can be distributed according to microcomputer reality number, flexibly to integrated circuit board distribution end port address, not can with other device conflicts.
Adopt two comparator HC688 and a slice 3-8 coding chip 138 to realize that decoding function carries out the decoding of all address wires, guaranteed the stable of system.
Data processing equipment adopts SED-486SN type PC/104CPU module.Data can be sent to centralized control console of engine room by Serial Port Line, make things convenient for administrative staff's operation.
Can satisfy the requirement of control in real time by flow control valve according to the characteristics of boats and ships operating mode.
The utility model can be realized:
1) to the detection of combustion process.In boiler running process, touring detect burner normally whether whether the flare up fire that sends of operation and burner cyclelog is normal, if undesired then send interlocking blowing out signal.
2) to the detection of boiler steam and water circuit.Comprise the collection of A/D switching signals such as steam pressure, steam flow, feedwater flow, steam water-level, fire box temperature, furnace pressure; The hydrograph picture shows that promptly for the characteristics of dynamic reflection boiler water level variation, the form with light beam on display screen shows water level, and vapor portion represents that with redness water section is represented with green, and made the fluctuation pattern of water level consistent with actual conditions; Fault alarm and processing, according to given pressure upper and lower limit, the water level upper and lower limit is judged various abnormal conditions, if abnormal situation is then sent the sound and light alarm signal, even the interlocking blowing out.。
3) feed water system of boiler is carried out regulating automatically continuously, adopt pid control algorithm to calculate and export controlled quentity controlled variable input quantity.The state of SEA LEVEL VARIATION is discerned and judged is the important parameter of boiler failure prediction, inquire about by past one section data of gathering period, according to the variation characteristics of water level signal, can discern the change or the change of improper water level signal of normal water level signal automatically.
4) set-point of each controlled parameter, the setting parameter of various control algolithms and other various technological parameters all can utilize keyboard to realize online modification under the situation of closed-loop control.All adjustable parameters all can be on corresponding picture decimally unit show, thereby make system's parameter that puts into operation simple, convenient and rapid.
The utility model has the advantages that and adopted the current transmitter that is in most advanced level as sensor, the power-supply system that easily breaks down, the display system of water level and control system have adopted Redundancy Design, and cost performance is higher.Simultaneously, inquire about,, can discern the change or the change of improper water level signal of normal water level signal automatically according to the variation characteristics of water level signal by past one section data of gathering period.
Description of drawings
Fig. 1 is the utility model structured flowchart.
Fig. 2 arranges schematic diagram for the utility model power supply.
Fig. 3 is the utility model AD chip wiring schematic diagram.
Fig. 4 is the utility model simulation table display circuit schematic diagram.
Fig. 5 is the utility model DA chip wiring schematic diagram.
Among the figure: E1. Switching Power Supply, U. wave filter, E2. first modular power source,, E3. second modular power source, arrow 1. is to display screen, arrow 2. is to sensor, AC220V. port and starboard AC power, the DC24V. port and starboard 24V power supply of meeting an urgent need, R. piezo-resistance, OF fuse, P1 diode, D0-D15. data wire, A0-A15. address wire, RD. reading signal lines, WR. write signal line, ADDR. address decoder, BUS. decoder bus, DB0-DB15. data wire pin, the BYTE. byte is selected pin, BUSY. the converter state is indicated pin, CS. sheet selects output pin, and R/C changes output pin, R0 acyclic homologically trioial economize on electricity resistance, R1. first regulate resistance, R2. second regulate resistance, R3. the 3rd regulates resistance, and R4. the 4th regulates resistance, R5. the 5th regulate resistance, R6. the 6th regulate resistance, the CS. sheet selects pin, and the ILE. data latch the permission signal, WR1. be first write signal, WR2. second write signal, the XFER. data transmit control signal, Rfb. feedback resistance terminals, Iout1. first current output signal, Iout2. second current output signal, Vout voltage signal, Vin. input voltage, Vout. output voltage, KM1. first relay, KM2. second relay, KM3. the 3rd relay.
The specific embodiment
Form by sensor, transfer box, monitoring case, flow control valve etc.
Differential pressure transmitter is a sensor, is loaded on the boiler casing, and has water pipe and boiler to join
Transfer box, be positioned at the cabin, the power supply of monitoring case and sensor is provided, and the switching that holding wire respectively is provided, comprise two-way drum pressure input signal interface, two-way superheater pressure reduction input signal interface, two-way superheater vapor (steam) temperature input signal interface, two-way burner hearth burning indication input signal interface, the flame-out indication of two-way input signal interface.
The monitoring case is positioned at central station of floating dock console next door, and the boiler of feeding operator observes and operation.Have on the monitoring case panel power supply indicator, fault alarm indicator lamp, power switch button, can external alarm buzzer the output interface of output interface, drive circuit and water level control signal.Four water level output channel simulation tables are equipped with on panel top.LCDs is installed at the middle part, and ann silence button, self check button, SR also are equipped with in the panel bottom.
Be provided with data acquisition board and data processing equipment in the monitoring case.A/D convertor circuit is arranged, analogue quantity output circuit, DA change-over circuit, switching value output circuit etc. on the data acquisition board.A/D convertor circuit, analogue quantity output circuit all link to each other with signal wire interface, and the DA change-over circuit links to each other with PC104 bus, flow control valve signaling interface line, and the switching value output circuit links to each other with PC104 bus, switching value signaling interface line.The monitoring case links to each other with centralized control console of engine room with Serial Port Line.Data processing equipment adopts SED-486SN type PC/104CPU module, data can be sent to centralized control console of engine room by Serial Port Line.
As shown in Figure 1, data processing equipment is sending into data acquisition board from the current signal of sensor output.Data processing equipment transfers this current signal to through precision resistance the voltage signal of 0-5V, A/D convertor circuit converts this voltage signal to water level value, after the device energising, the PC104 mainboard will automatically perform data acquisition and the handling procedure in the memory, at first read data signals such as these water levels, steam pressure, superheater pressure difference, the compensation operation that carries out water level obtains revising the data of back water level value.The variation that also dynamically shows water level with data and graphical representation water level value simultaneously.Carry out water level and whether judge normally and export, make the Flow-rate adjustment valve events.The input and output control button is arranged on the panel, data processing equipment will be in each program cycle test button information and carry out corresponding action, if need termination program and program debugging, can finish by the transmission data button on the data acquisition board.Termination program and transmission data finish.
As shown in Figure 2, E1 is a Switching Power Supply, and E2 is first modular power source, and the power supply of PC104 mainboard is provided, and E3 is second modular power source, and the power supply of display screen is provided, and arrow 1 is represented display screen, and arrow 2 is represented sensor.For satisfying when working power is cut off the power supply, can automatically switch to stand-by power supply, adopt two voltage transformation modules and two relays, when the larboard dead electricity and starboard when electricity is arranged, and the first relay K M1 coil losing electricity in its loop.Its normally open contact is closed and, therefore, make the 3rd relay K M3 energising that is connected on the starboard electricity, its normally open contact closure has been connected starboard; In like manner, when the starboard dead electricity and larboard when electricity is arranged will recover the larboard power supply; The interchange 127V of port and starboard, through voltage transformation module+24V direct current, when larboard or starboard power supply, the second relay K M2 has, its normally closed interlock disconnects, emergency power supply is disconnected, and when the equal dead electricity of port and starboard, the second relay K M2 is with dead electricity, it is normally closed to go out contact closure, automatically switch to emergent 24V power supply power supply, simultaneously, second relay K M2 energising when in circuit, adopting diode to prevent the emergency power supply power supply.
Claims (5)
1, a kind of Turbo-charged Marine Boiler water level shows and control device, it is characterized in that: be made up of sensor, transfer box, monitoring case, flow control valve; Differential pressure transmitter is a sensor, is loaded on the boiler casing, and has water pipe and boiler to join; Transfer box is positioned at the cabin; The monitoring case is positioned at central station of floating dock console next door, links to each other with centralized control console of engine room with Serial Port Line; Be provided with data acquisition board and data processing equipment in the monitoring case.
2, a kind of Turbo-charged Marine Boiler water level according to claim 1 shows and control device, it is characterized in that: described transfer box comprises two-way drum pressure input signal interface, two-way superheater pressure reduction input signal interface, two-way superheater vapor (steam) temperature input signal interface, two-way burner hearth burning indication input signal interface, the flame-out indication of two-way input signal interface.
3, a kind of Turbo-charged Marine Boiler water level according to claim 1 and 2 shows and control device, it is characterized in that: have on the described monitoring case panel power supply indicator, fault alarm indicator lamp, power switch button, can external alarm buzzer the output interface of output interface, drive circuit and water level control signal; Four water level output channel simulation tables are equipped with on panel top, and LCDs is installed at the middle part, and ann silence button, self check button, SR also are equipped with in the panel bottom; Be provided with data acquisition board and data processing equipment in the monitoring case.
4, a kind of Turbo-charged Marine Boiler water level according to claim 3 shows and control device, it is characterized in that: on the described data acquisition board A/D convertor circuit is arranged, analogue quantity output circuit, DA change-over circuit, switching value output circuit; A/D convertor circuit, analogue quantity output circuit all link to each other with signal wire interface, and the DA change-over circuit links to each other with PC104 bus, flow control valve signaling interface line, and the switching value output circuit links to each other with PC104 bus, switching value signaling interface line. The address wire of PC104 links to each other by the data wire of address decoder with LTC1606 with data wire, the output signal of address decoder ADDR is passed through with write signal WR or is linked to each other with the conversion output pin R/C of LTC1606 behind the door, the decoder output signal enters two and door with read signal RD warp or signal behind the door with above-mentioned signal simultaneously, and the sheet that is connected to LTC1606 selects output pin CS.。
5, a kind of Turbo-charged Marine Boiler water level according to claim 3 shows and control device, it is characterized in that: described data processing equipment adopts SED-486SN type PC/104 CPU module, is connected to centralized control console of engine room by Serial Port Line.
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| CN200820230564U CN201373383Y (en) | 2008-12-24 | 2008-12-24 | Water level display and control device of marine supercharged boiler |
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| CN200820230564U CN201373383Y (en) | 2008-12-24 | 2008-12-24 | Water level display and control device of marine supercharged boiler |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538898A (en) * | 2010-11-23 | 2012-07-04 | 卡特彼勒公司 | Fluid level monitoring system and method |
| CN102788625A (en) * | 2011-05-16 | 2012-11-21 | 上海华建电力设备股份有限公司 | Differential-pressure liquid level transmitter with displaying and alarming functions |
| CN104329508A (en) * | 2014-10-28 | 2015-02-04 | 大连海事大学 | Non-contact active sensing valve switch |
| CN104373926A (en) * | 2014-08-15 | 2015-02-25 | 哈尔滨工程大学 | Marine boiler water level control system |
| CN104791764A (en) * | 2015-05-08 | 2015-07-22 | 南通长航船舶配件有限公司 | Small boiler control system used for ship |
| CN106642061A (en) * | 2016-12-28 | 2017-05-10 | 湖南坤宇网络科技有限公司 | Early warning method for boiler separate cylinder failures based on decision tree system |
| CN109028023A (en) * | 2018-07-09 | 2018-12-18 | 武汉理工大学 | A kind of marine main boiler water level control system based on particle swarm optimization algorithm |
| CN109169493A (en) * | 2018-11-13 | 2019-01-11 | 王彪 | A kind of aquaculture thermostatic chamber boiler and installation method |
| CN110178003A (en) * | 2017-02-23 | 2019-08-27 | 惠普发展公司，有限责任合伙企业 | Fluid level sensor |
| CN111982231A (en) * | 2020-07-30 | 2020-11-24 | 深圳市城安物联科技有限公司 | Low-power-consumption water level integrated intelligent monitoring system |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538898A (en) * | 2010-11-23 | 2012-07-04 | 卡特彼勒公司 | Fluid level monitoring system and method |
| CN102538898B (en) * | 2010-11-23 | 2016-03-02 | 卡特彼勒公司 | Level monitoring system and method |
| CN102788625A (en) * | 2011-05-16 | 2012-11-21 | 上海华建电力设备股份有限公司 | Differential-pressure liquid level transmitter with displaying and alarming functions |
| CN104373926A (en) * | 2014-08-15 | 2015-02-25 | 哈尔滨工程大学 | Marine boiler water level control system |
| CN104329508A (en) * | 2014-10-28 | 2015-02-04 | 大连海事大学 | Non-contact active sensing valve switch |
| CN104791764A (en) * | 2015-05-08 | 2015-07-22 | 南通长航船舶配件有限公司 | Small boiler control system used for ship |
| CN106642061A (en) * | 2016-12-28 | 2017-05-10 | 湖南坤宇网络科技有限公司 | Early warning method for boiler separate cylinder failures based on decision tree system |
| CN110178003A (en) * | 2017-02-23 | 2019-08-27 | 惠普发展公司，有限责任合伙企业 | Fluid level sensor |
| CN109028023A (en) * | 2018-07-09 | 2018-12-18 | 武汉理工大学 | A kind of marine main boiler water level control system based on particle swarm optimization algorithm |
| CN109169493A (en) * | 2018-11-13 | 2019-01-11 | 王彪 | A kind of aquaculture thermostatic chamber boiler and installation method |
| CN109169493B (en) * | 2018-11-13 | 2021-08-27 | 王彪 | Pump-free constant-temperature-chamber heating boiler for aquaculture and installation method |
| CN111982231A (en) * | 2020-07-30 | 2020-11-24 | 深圳市城安物联科技有限公司 | Low-power-consumption water level integrated intelligent monitoring system |
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