CN203704373U - Oil or gas fired vacuum hot water boiler control system - Google Patents
Oil or gas fired vacuum hot water boiler control system Download PDFInfo
- Publication number
- CN203704373U CN203704373U CN201420041955.7U CN201420041955U CN203704373U CN 203704373 U CN203704373 U CN 203704373U CN 201420041955 U CN201420041955 U CN 201420041955U CN 203704373 U CN203704373 U CN 203704373U
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- CN
- China
- Prior art keywords
- controller
- boiler
- supply water
- burner
- control system
- 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.)
- Expired - Lifetime
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 238000004891 communication Methods 0.000 claims abstract description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000001301 oxygen Substances 0.000 claims abstract description 8
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 8
- 239000008400 supply water Substances 0.000 claims description 40
- 239000000446 fuel Substances 0.000 claims description 26
- 238000005259 measurement Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 abstract 5
- 238000010304 firing Methods 0.000 abstract 3
- 238000010926 purge Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 9
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000007664 blowing Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000000567 combustion gas Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The utility model relates to an oil or gas fired vacuum hot water boiler control system which comprises a controller and a human-machine interface module. The controller comprises a master control CPU, a wireless communication module and an extended module. A communication interface, an input interface and an output interface are integrated in the master control CPU, the wireless communication module and the human-machine interface module are connected with a communication interface of the controller, and a circulation pump, an oil filling pump and a burner are in wireless connection with the output interface of the controller. The burner comprises a burning fan and an oil or gas firing adjusting valve, the burner is connected with a boiler furnace through the oil or gas firing adjusting valve, a pipeline where the oil or gas firing adjusting valve is connected with the boiler furnace is provided with a feedforward gain adjuster, the feedforward gain adjuster is connected with the output interface of the controller, an oxygen content detection device is arranged on an outlet of a boiler flue and connected with the feedforward gain adjuster, an oil supply temperature sensor is arranged on an oil supply pipe of a boiler barrel, and the temperature sensor is connected with the input interface of the controller. The oil or gas fired vacuum hot water boiler control system has the advantages of reducing the boiler load and the like.
Description
Technical field
The utility model relates to a kind of control system of boiler, relates in particular to a kind of fuel vapor vacuum hot water boiler control system.
Background technology
Fuel vapor vacuum hot water boiler equipment has been widely used in the production and life of all trades and professions, along with the raising of modernization construction and people's living standard, the requirement of the automaticity of people to boiler plant is also more and more higher, fuel vapor vacuum hot water boiler control system of the prior art needs the cooperation of highly intensive labour power, need continual enforcement supervision and control, make in real time supply water temperature meet boiler load requirement and also have certain difficulty, the unstable boiler-burner that easily causes of boiler load starts frequently and stops, even increase manual intervention, do not have expected effect yet.The supply water temperature of boiler is not realized automation control yet, need to add its supply water temperature controller, and this has also increased the volume of boiler control system.
Summary of the invention
Technical problem to be solved in the utility model has been to provide a kind of fuel vapor vacuum hot water boiler control system of energy-efficient, Automatic Control.
For addressing the above problem, the technical solution of the utility model is:
A kind of fuel vapor vacuum hot water boiler control system, this control system comprises drum, is positioned at the boiler furnace of drum inside, burner, circulating pump and uses hot equipment; Burner is connected with boiler furnace for heating to boiler furnace, and boiler furnace is connected successively with hot equipment and circulating pump by feed pipe; Circulating pump is connected with boiler furnace by pipeline; Wherein, this control system also comprises controller and human-computer interface module, controller has comprised master cpu, wireless communication module and expansion module, integrated communicaton interface and input, output interface in master cpu, wireless communication module, human-computer interface module are connected with the communication interface of controller, the output interface wireless connections of circulating pump and burner and controller; Burner comprises burning blower fan, fuel vapor control valve, burner is connected with boiler furnace by fuel vapor control valve, the pipeline that fuel vapor control valve is connected with boiler furnace is provided with feedforward gain adjuster, and feedforward gain adjuster is connected with the output interface of controller; Boiler flue exit is provided with measurement of oxygen content device, and this measurement of oxygen content device is connected with feedforward gain adjuster; The feed pipe of this drum is provided with supply water temperature sensor, and this temperature sensor is connected with the input interface of controller.
Adopt this structure, can realize automation control by controller, thereby realize boiler oil temperature supplying, realize the optimal combustion state of burner by control, stablize the load of boiler, can reduce and cause boiler-burner start frequently and stop because boiler load is unstable.
Wherein, described human-computer interface module is color touch screen.
Wherein, on feed pipe, be also provided with pressure of supply water controller, supply water temperature siren, supply water temperature controller, flow monitor, pressure of supply water controller, supply water temperature siren, supply water temperature controller, flow monitor at boiler furnace and with hot equipment between, pressure of supply water controller, supply water temperature siren, supply water temperature controller, flow monitor are all connected with the input interface of controller by wireless.
Wherein, the pipeline that circulating pump is connected with boiler furnace is provided with pressure of return water controller and pressure of return water temperature controller.
Accompanying drawing explanation
Fig. 1 is fuel vapor vacuum hot water boiler control system work schematic diagram.
Fig. 2 is control system module connection diagram.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, Figure 2, fuel vapor vacuum hot water boiler control system of the present utility model comprises drum 1, boiler furnace 2, burner 3, circulating pump 4, also comprises controller and human-computer interface module by hot equipment 8, control system, and human-computer interface module is color touch screen; Burner 3 comprises burning blower fan, fuel vapor control valve 31, burner is connected with boiler furnace by fuel vapor control valve 31, the pipeline that fuel vapor control valve is connected with boiler furnace is provided with feedforward gain adjuster 32, and feedforward gain adjuster 32 is connected with the output interface of controller; Boiler flue exit is provided with measurement of oxygen content device 33, and this measurement of oxygen content device 33 is connected with feedforward gain adjuster 32; Boiler furnace 2 is positioned at drum 1 inside, and burner 3 is connected with boiler furnace 2 by fuel vapor control valve 31 for heating to boiler furnace 2, and the feed pipe of boiler furnace 2 connects successively with hot equipment 8 and circulating pump 4; Circulating pump 4 is connected with the oil return opening of boiler furnace by pipeline; Controller has comprised master cpu, wireless communication module and expansion module, integrated communicaton interface and input, output interface in master cpu, wireless communication module, human-computer interface module are connected with the communication interface of controller, the output interface wireless connections of circulating pump 4 and burner 3 and master cpu; On feed pipe, be also provided with pressure of supply water controller 34, supply water temperature siren 35, supply water temperature controller 36, flow monitor 37, pressure of supply water controller 34, supply water temperature siren 35, supply water temperature controller 36, flow monitor 37 at boiler furnace 2 and with hot equipment between, pressure of supply water controller 34, supply water temperature siren 35, supply water temperature controller 36, flow monitor 37 are all connected with the input interface of controller by wireless; The pipeline that circulating pump 4 is connected with boiler furnace 2 is provided with pressure of return water controller 39 and pressure of return water temperature controller 38, the input interface wireless connections of pressure of return water controller 39 and pressure of return water temperature controller 38 and master cpu; Master cpu inside is provided with interlocking protective device.
The process of the whole burner preparation-igniting-operation-blowing out of control system control of fuel vapor vacuum hot water boiler, this control program is divided into preparation routine, ignition procedure, working procedure, interlock protection program and five parts of downtime schedule.
First be preparation routine: before burner operation, first must carry out purging before burner hearth.When furnace purge, opening blast apparatus purges.Next is ignition procedure: after purging before system, burner enters ignition procedure, and igniting subprogram is front purging, opens ignition transformer, puts auxiliary fire, puts main fire and the control of flame load.When after system point pyrogene merit, enter working procedure, burner enters flame adjusting.The control target of system is to guarantee that boiler water supply temperature meets user's requirement; The control object of system is intake and the air inflow of burner.System real-time continuous regulates intake and the air inflow of burner.Interlock program again: in the time of the boiler failures such as boiler water supply temperature superelevation, the protection of vacuum pressure superelevation and burning blower fan overload, interlock program starts, and automatically enters downtime schedule.Finally downtime schedule: in the time of the urgent blowing out of system or blowing out, close and cut off combustion gas or fuel delivery, carry out post-purge, finally carry out burner reset
In the working procedure and interlock protection program of burner igniting-blowing out, constantly carry out detection and the control of signal, the wherein supply water temperature control section of the drum in working procedure, is the key of whole control system.The control of supply water temperature realizes: supply water temperature control loop compares drum supply water temperature detected value and setting value, its deviation is as the input signal of controller, output control signal goes to regulate the aperture of fuel vapor control valve, measurement of oxygen content device and the acting in conjunction of output control signal are on feedforward gain adjuster, regulated the aperture of burning air door of fan by feedforward gain adjuster, realize burner optimal combustion state with this, reach the setting requirement of supply water temperature.
In addition, burning control algolithm can be with artificial guiding function, user can set from igniting to the fully loaded time, therefore under different state of temperatures, once user has inputted startup and fully loaded time requirement, burning is controlled software by the control of loading according to actual leaving water temperature, in the situation that gap is larger, full-open type is burnt, approach full load condition, guaranteeing the steady arrival of full load condition, reducing overshoot, to arrive best control effect, meet completely under different temperature condition from starting to fully loaded time requirement.In working control process, to control software and adopt pulse output, the servo motor of control combustion device rotates and reverse, to reach burden requirement.Such system control can be stablized the load of boiler, reduces and causes boiler-burner start frequently and stop because boiler oil temperature is too high, realizes the automation control of boiler leaving water temperature.
In interlock protection program, the ontological security defencive function of fuel vapor vacuum hot water boiler is as follows:
◆ gaseous-pressure abnormal protection: gaseous-pressure is high and low all will produce alarm signal, and stop igniting
◆ domestic oil tank liquid level abnormal protection: domestic oil tank liquid level is high and low all will produce alarm signal, and stop opening stove.
◆ blast abnormal protection: produce alarm signal when blast is abnormal, and stop opening stove.
◆ leak protection: in the time that combustion gas occurs to leak, produce alarm signal, stop igniting.
◆ blowout protection: in the time cannot flare up fire being detected in combustion process, produce alarm signal, out of service.
◆ supply water temperature superelevation: produce alarm signal in the time of supply water temperature superelevation, stop burning, and carry out post-purge, reset after purging.
◆ vacuum pressure superelevation: in the time of vacuum pressure superelevation, produce alarm signal,, stop boiler operatiopn, and carry out post-purge, after purging, reset.
◆ flue temperature superelevation: in the time of flue temperature superelevation, produce alarm signal, stop boiler operatiopn, and carry out post-purge, reset after purging.
Extremely low/high fault of pressure of supply water: in the time that water supply 1 is extremely low/high, produce alarm signal, stop boiler operatiopn, and carry out post-purge, reset after purging.
Claims (4)
1. a fuel vapor vacuum hot water boiler control system, this control system comprises drum, is positioned at the boiler furnace of drum inside, burner, circulating pump and uses hot equipment; Burner is connected with boiler furnace for heating to boiler furnace, and boiler furnace is connected successively with hot equipment and circulating pump by feed pipe; Circulating pump is connected with boiler furnace by pipeline; It is characterized in that: this control system also comprises controller and human-computer interface module, controller has comprised master cpu, wireless communication module and expansion module, integrated communicaton interface and input, output interface in master cpu, wireless communication module, human-computer interface module are connected with the communication interface of controller, the output interface wireless connections of circulating pump, burner and controller; Burner comprises burning blower fan, fuel vapor control valve, burner is connected with boiler furnace by fuel vapor control valve, the pipeline that fuel vapor control valve is connected with boiler furnace is provided with feedforward gain adjuster, and feedforward gain adjuster is connected with the output interface of controller; Boiler flue exit is provided with measurement of oxygen content device, and this measurement of oxygen content device is connected with feedforward gain adjuster; The feed pipe of this drum is provided with supply water temperature sensor, and this temperature sensor is connected with the input interface of controller.
2. fuel vapor vacuum hot water boiler control system according to claim 1, is characterized in that: described human-computer interface module is color touch screen.
3. fuel vapor vacuum hot water boiler control system according to claim 1, it is characterized in that: on feed pipe, be also provided with pressure of supply water controller, supply water temperature siren, supply water temperature controller, flow monitor, pressure of supply water controller, supply water temperature siren, supply water temperature controller, flow monitor at boiler furnace and with hot equipment between, pressure of supply water controller, supply water temperature siren, supply water temperature controller, flow monitor are all connected with the input interface of controller by wireless.
4. fuel vapor vacuum hot water boiler control system according to claim 3, is characterized in that: the pipeline that circulating pump is connected with boiler furnace is provided with pressure of return water controller and pressure of return water temperature controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420041955.7U CN203704373U (en) | 2014-01-23 | 2014-01-23 | Oil or gas fired vacuum hot water boiler control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420041955.7U CN203704373U (en) | 2014-01-23 | 2014-01-23 | Oil or gas fired vacuum hot water boiler control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203704373U true CN203704373U (en) | 2014-07-09 |
Family
ID=51054801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420041955.7U Expired - Lifetime CN203704373U (en) | 2014-01-23 | 2014-01-23 | Oil or gas fired vacuum hot water boiler control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203704373U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807186A (en) * | 2015-02-03 | 2015-07-29 | 四川省安普瑞自动化设备有限公司 | Gas field gathering engineering wellhead heating furnace system |
-
2014
- 2014-01-23 CN CN201420041955.7U patent/CN203704373U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104807186A (en) * | 2015-02-03 | 2015-07-29 | 四川省安普瑞自动化设备有限公司 | Gas field gathering engineering wellhead heating furnace system |
| CN104807186B (en) * | 2015-02-03 | 2017-11-28 | 四川省安普瑞自动化设备有限公司 | Gas field gathering engineering hole top heating furnace system and autocontrol method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |
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| CX01 | Expiry of patent term |