CN207146935U - A kind of middle-size and small-size gas-fired water heating boiler specific PLC control system - Google Patents
A kind of middle-size and small-size gas-fired water heating boiler specific PLC control system Download PDFInfo
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- CN207146935U CN207146935U CN201721091316.1U CN201721091316U CN207146935U CN 207146935 U CN207146935 U CN 207146935U CN 201721091316 U CN201721091316 U CN 201721091316U CN 207146935 U CN207146935 U CN 207146935U
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Abstract
The utility model discloses a kind of middle-size and small-size gas-fired water heating boiler specific PLC control system, including housing, the PLC being arranged in housing and the power input being connected in PLC, on-off model input, output switch parameter, analog input, EBI, feed DC24V and communication interface are connected with PLC, the on-off model input includes the input of 2 tunnel pulse level electrodes, 4 road passive switch inputs and 2 road 220V signals inputs, the output switch parameter includes 7 road 10A relays, and the analog input inputs including 2 road PT100.The utility model integrates many control functions with PLC, such as electrode liquid level signal, combustor control function, main frame carries temperature, pressure analog signal, without peripheral expansion, product is succinctly stablized, user can voluntarily increase control function on demand, powerful, cost-effective.
Description
Technical field
It the utility model is related to a kind of control system, more particularly to a kind of middle-size and small-size gas-fired water heating boiler specific PLC control
System.
Background technology
At present, boiler control system is divided into PLC control system and single-chip computer control system, common PLC controls on the market
System is disadvantageous in that, to be realized that boiler implosion requirement must increase each expansion module combination in PLC peripheries, be caused hardware
Connection is excessive, and fault rate increase, separate unit production time length, for cost price with regard to high, cost performance is low.
And single-chip computer control system is disadvantageous in that, the boiler implosion requirement to be realized must unify, it is impossible to difference
Change control.Control program must be fixed by controller producer, and underaction, function is not powerful, and product is stereotyped, personalized
Low, function is simple.
Utility model content
The utility model is in order to solve defect present in above-mentioned prior art and deficiency, there is provided a kind of by multiple controls
Function integrates, without peripheral expansion can normal use, product succinctly stablizes, and user can also voluntarily increase on demand
Control function, powerful, cost-effective middle-size and small-size gas-fired water heating boiler specific PLC control system.
The technical solution of the utility model：A kind of middle-size and small-size gas-fired water heating boiler specific PLC control system, including housing,
The PLC being arranged in housing and the power input being connected in PLC, it is connected with out in the PLC
Pass amount signal input, output switch parameter, analog input, EBI, feed DC24V and communication interface, the switching value letter
Number input includes the input of 2 tunnel pulse level electrodes, 4 road passive switch inputs and 2 road 220V signals and inputted, the output switch parameter
Including 7 road 10A Controls, the analog input is defeated including 2 road PT100 inputs, 2 road normalized current 4-20MA signals
Enter.
The utility model is developed specifically for boiler, many control functions is integrated with PLC, such as electrode
Liquid level signal, combustor control function, main frame carry temperature, pressure analog signal, and without peripheral expansion, product is succinctly stablized, and use
Family can voluntarily increase control function on demand, powerful, cost-effective.
Preferably, 1 tunnel connects measuring cylinder electrode in the 2 tunnel pulse level electrode input, and 1 tunnel connects main body protection electrode.
Water resistance value is sensitive adjustable.
Preferably, 4 road passive switch inputs corresponding pressure switch, temperature detect switch (TDS), system start stop switch respectively and is
Unite silence switch, 2 road 220V signals input corresponds to burning operation input and the input of flame-out failure, the 2 road PT100 respectively
Input corresponds to inflow temperature and leaving water temperature respectively.
2 road PT100 input (0-500 DEG C), precision 0.5.
Preferably, the 7 road 10A Controls correspond to burning startup control respectively, burning stops control, Load Regulation
Public line traffic control, load reduce control, load increase control, water circulating pump control and the control of failure alarm bell.
Preferably, the EBI can connect most 5 expansion modules, the feed DC24V can connect transmitter and
Display screen power supply, its Fu carry Neng Li≤30W 150MA.
Preferably, the communication interface is arranged on shell, and it includes 1 232 communication interface and 1 485 communication interface,
235 communication interface can connect touch-screen or text display, and 485 communication interface can connect long-range MODBUS and lead to
News.
Preferably, the PLC is Mitsubishi PLC GX series, selects FX2N step numbers 8000.
The utility model is developed specifically for boiler, many control functions is integrated with PLC, such as electrode
Liquid level signal, combustor control function, main frame carry temperature, pressure analog signal, and without peripheral expansion, product is succinctly stablized, and use
Family can voluntarily increase control function on demand, powerful, cost-effective.
Brief description of the drawings
Fig. 1 is wiring schematic diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings, but is not that model is protected to the utility model
The limitation enclosed.
As shown in figure 1, a kind of middle-size and small-size gas-fired water heating boiler specific PLC control system, including housing, it is arranged in housing
PLC and the power input that is connected in PLC, be connected with on-off model input, switch in PLC
Output, analog input, EBI, feed DC24V and communication interface are measured, the on-off model input includes 2 tunnel pulses
Level electrode input, 4 road passive switch inputs and 2 road 220V fault-signals inputs, the output switch parameter include 7 road 10A after
Electrical equipment, the analog input input including 2 road PT100.4 road passive switch inputs respectively corresponding pressure switches, temperature detect switch (TDS),
System start stop switch and system silence switch, the corresponding burning operation input of 2 road 220V signals input and the input of flame-out failure,
The 2 road PT100 inputs correspond to inflow temperature and leaving water temperature respectively.7 way switch amounts output respectively correspond to burning start control,
Burning stops control, the public line traffic control of Load Regulation, load reduction control, load increase control, water circulating pump control and failure
Alarm bell controls.EBI can connect most 5 expansion modules, and the feed DC24V can connect transmitter and display screen power supply,
Its Fu carries Neng Li≤30W 150MA.Communication interface is arranged on shell, and it includes 1 232 communication interface and 1 485 communication connects
Mouthful, 235 communication interface can connect touch-screen or text display, and 485 communication interface can connect long-range MODBUS
Communication.PLC is Mitsubishi PLC GX series, selects FX2N step numbers 8000.
The utility model is applied to the middle-size and small-size gas-fired water heating boilers of 1-6T.Power input is that alternating current 220V 185V-260V is opened
Powered-down source.
The utility model is developed specifically for boiler, many control functions is integrated with PLC, such as electrode
Liquid level signal, combustor control function, main frame carry temperature, pressure analog signal, and without peripheral expansion, product is succinctly stablized, and use
Family can voluntarily increase control function on demand, powerful, cost-effective.
Claims (7)
1. a kind of middle-size and small-size gas-fired water heating boiler specific PLC control system, including housing, the PLC that is arranged in housing
With the power input being connected in PLC, it is characterised in that：Be connected with the PLC on-off model input,
Output switch parameter, analog input, EBI, feed DC24V and communication interface, the on-off model input include 2 tunnels
The input of pulse level electrode, 4 road passive switch inputs and 2 road 220V feedback signals inputs, the output switch parameter include 7 tunnels
10A Controls, the analog input input including 2 road PT100,2 road normalized current 4-20MA signals inputs.
A kind of 2. middle-size and small-size gas-fired water heating boiler specific PLC control system according to claim 1, it is characterised in that：Institute
State 1 tunnel in the input of 2 tunnel pulse level electrodes and connect measuring cylinder electrode, 1 tunnel connects main body protection electrode.
A kind of 3. middle-size and small-size gas-fired water heating boiler specific PLC control system according to claim 1, it is characterised in that：Institute
State 4 road passive switch inputs corresponding pressure switch, temperature detect switch (TDS), system start stop switch and system silence switch respectively, 2 tunnel
The corresponding burning operation input of 220V signals input and the input of flame-out failure, the 2 road PT100 inputs correspond to respectively inflow temperature with
Leaving water temperature.
A kind of 4. middle-size and small-size gas-fired water heating boiler specific PLC control system according to claim 1, it is characterised in that：Institute
Stating 7 road 10A Controls, corresponding burning startup control, burning stopping control, the public line traffic control of Load Regulation, load subtract respectively
Small control, load increase control, water circulating pump control and the control of failure alarm bell.
A kind of 5. middle-size and small-size gas-fired water heating boiler specific PLC control system according to claim 1, it is characterised in that：Institute
State EBI and connect most 7 expansion modules, the feed DC24V can connect transmitter and display screen power supply, and it loads energy
Li≤30W 150MA.
A kind of 6. middle-size and small-size gas-fired water heating boiler specific PLC control system according to claim 1, it is characterised in that：Institute
State communication interface to be arranged on main frame, it includes 1 232 communication interface and 1 485 communication interface, and 235 communication interface can
Touch-screen or text display are connected, 485 communication interface connects long-range MODBUS communications.
A kind of 7. middle-size and small-size gas-fired water heating boiler specific PLC control system according to claim 1, it is characterised in that：Institute
PLC is stated as Mitsubishi PLC GX series, selects FX2N step numbers 16000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721091316.1U CN207146935U (en) | 2017-08-29 | 2017-08-29 | A kind of middle-size and small-size gas-fired water heating boiler specific PLC control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721091316.1U CN207146935U (en) | 2017-08-29 | 2017-08-29 | A kind of middle-size and small-size gas-fired water heating boiler specific PLC control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207146935U true CN207146935U (en) | 2018-03-27 |
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ID=61670466
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721091316.1U Active CN207146935U (en) | 2017-08-29 | 2017-08-29 | A kind of middle-size and small-size gas-fired water heating boiler specific PLC control system |
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| CN (1) | CN207146935U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556655A (en) * | 2018-11-19 | 2019-04-02 | 河北省机电体化中试基地 | A kind of regenerative heat-exchange system temperature and liquid level integral type acquire pick-up device |
-
2017
- 2017-08-29 CN CN201721091316.1U patent/CN207146935U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556655A (en) * | 2018-11-19 | 2019-04-02 | 河北省机电体化中试基地 | A kind of regenerative heat-exchange system temperature and liquid level integral type acquire pick-up device |
| CN109556655B (en) * | 2018-11-19 | 2021-04-27 | 河北省机电一体化中试基地 | Temperature and liquid level integrated acquisition and transmission device of heat accumulating type heat exchange system |
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