CN203731707U - Control system for fuel oil gas conduction oil boiler - Google Patents
Control system for fuel oil gas conduction oil boiler Download PDFInfo
- Publication number
- CN203731707U CN203731707U CN201420041518.5U CN201420041518U CN203731707U CN 203731707 U CN203731707 U CN 203731707U CN 201420041518 U CN201420041518 U CN 201420041518U CN 203731707 U CN203731707 U CN 203731707U
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- CN
- China
- Prior art keywords
- controller
- boiler
- oil
- control system
- burner
- 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
Links
- 239000000295 fuel oil Substances 0.000 title abstract 6
- 239000003921 oil Substances 0.000 title abstract 3
- 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
- 239000000446 fuel Substances 0.000 claims description 33
- 238000005259 measurement Methods 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 6
- 238000012806 monitoring device Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 6
- 230000001105 regulatory effect Effects 0.000 abstract description 4
- 230000001276 controlling effect Effects 0.000 abstract 1
- 238000010926 purge Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- 239000007788 liquid Substances 0.000 description 5
- 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
- 238000002360 preparation method Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method 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
Abstract
The utility model relates to a control system for a fuel oil gas conduction oil boiler. The control system comprises a controller and a human-computer interface module, the controller comprises a main control CPU, a wireless communication module and an expansion module, a communication interface, an input interface and an output interface are integrated in the main control CPU, the wireless communication module and the human-computer interface module are connected with the communication interface of the controller, and a circulation pump, a filling pump and a burner are connected with the output interface of the controller in a wireless mode. The burner comprises a burning draught fan and a fuel oil gas regulating valve, the burner is connected with a boiler furnace through the fuel oil gas regulating valve, a feed-forward gain regulator is arranged on a pipeline connected between the fuel oil gas regulating valve and the boiler furnace, and the feed-forward gain regulator is connected with the output interface of the controller. An oxygen content detecting device is arranged at the position of a boiler flue outlet, and is connected with the feed-forward gain regulator. Through the structure, the control system for the fuel oil gas conduction oil boiler has the advantage of automatically controlling and reducing frequent starting and stopping of the boiler burner caused by instable loads of the boiler.
Description
Technical field
The utility model relates to a kind of control system of boiler, relates in particular to a kind of control system of fuel vapor heat conducting oil boiler.
Background technology
Methods of Oil-Gas Fired 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, the control system of fuel vapor heat conducting oil boiler of the prior art needs the cooperation of highly intensive labour power, need continual enforcement supervision and control, make in real time oil temperature supplying 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 oil temperature supplying of boiler is not realized automation control yet, need to add its oil temperature supplying 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 control system of fuel vapor heat conducting oil boiler of energy-efficient, Automatic Control.
For addressing the above problem, the technical solution of the utility model is:
A control system for fuel vapor heat conducting oil boiler, this control system comprises drum, is positioned at the boiler furnace of drum inside, burner, circulating pump, expansion oil groove, oil storage system, separator and use hot equipment; Burner is connected with boiler furnace for heating to boiler furnace, and boiler furnace is connected successively with hot equipment, separator and circulating pump by fuel feed pump; Oil storage system is connected with filling pump by pipeline, and filling pump is connected with circulating pump and expansion oil groove respectively by pipeline, and expansion oil groove is connected with separator by pipeline; 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, filling 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.
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, on fuel feed pump, be also provided with charge oil pressure controller, oil temperature supplying siren, oil temperature supplying controller, flow monitor, charge oil pressure controller, oil temperature supplying siren, oil temperature supplying controller, flow monitor at boiler furnace and with hot equipment between, charge oil pressure controller, oil temperature supplying siren, oil temperature supplying controller, flow monitor are all connected with the input interface of controller by wireless.
Wherein, described human-computer interface module is color touch screen.
Wherein, the pipeline that circulating pump is connected with boiler furnace is provided with return pressure controller and oil return power temperature controller.
Wherein, the pipeline that circulating pump is connected with boiler furnace is provided with return pressure monitoring device and charge oil pressure monitoring device.
Wherein, on described expansion oil groove, be provided with expansion level monitoring device.
Brief description of the drawings
Fig. 1 is the control system work schematic diagram of fuel vapor heat conducting oil boiler.
Fig. 2 is control system module connection diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, Figure 2, fuel vapor heat conducting oil boiler of the present utility model comprises drum 1, boiler furnace 2, burner 3, circulating pump 4, expansion oil groove 5, oil storage system 6, separator 7, 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 fuel feed pump of boiler furnace connects successively with hot equipment 8, separator 7 and circulating pump 4; Oil storage system 6 pipings are connected with filling pump 9, and filling pump 9 is connected with circulating pump 4 and expansion oil groove 5 respectively by pipeline, and expansion oil groove 5 is connected with separator 7 by pipeline; 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, filling pump 9 and burner 3 and controller; On fuel feed pump, be also provided with charge oil pressure controller 34, oil temperature supplying siren 35, oil temperature supplying controller 36, flow monitor 37, charge oil pressure controller 34, oil temperature supplying siren 35, oil temperature supplying controller 36, flow monitor 37 at boiler furnace 2 and with hot equipment between, charge oil pressure controller 34, oil temperature supplying siren 35, oil temperature supplying 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 return pressure controller 39 and return pressure temperature controller 38, the input interface wireless connections of return pressure controller 39 and return pressure temperature controller 38 and master cpu; On described expansion oil groove 5, be provided with expansion level monitoring device 51; 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 heat conducting oil 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 ensure that boiler oil temperature supplying meets user's requirement; The control object of system is intake and the air inflow of burner.System acquisition boiler oil temperature supplying signal, makes system real-time continuous regulate intake and the air inflow of burner.Interlock program again: in the time of the boiler failures such as boiler oil temperature supplying superelevation, the low protection of expansion oil groove liquid level 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 carrying out burner resets in the working procedure and interlock protection program of burner igniting-blowing out; to constantly carry out detection and the control of signal; the wherein oil temperature supplying control section of the drum in working procedure is the key of whole control system.The control of oil temperature supplying realizes: oil temperature supplying control loop compares drum oil temperature supplying 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 oil temperature supplying.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 oil temperature supplying, in the situation that gap is larger, full-open type is burnt, approach full load condition, ensureing 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 oil temperature supplying.
In interlock protection program, the ontological security defencive function of fuel vapor heat conducting oil 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.◆ oil temperature supplying superelevation: produce alarm signal in the time of oil temperature supplying superelevation, stop burning, and carry out post-purge, reset after purging.◆ expansion oil groove liquid level is low: in the time that expansion oil groove liquid level is low, 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.◆ circulating pump fault: when after boiler starting, pump operating cycle signal lag is waited and still do not fed back, and produces alarm signal, forbids starting boiler.
Claims (5)
1. a control system for fuel vapor heat conducting oil boiler, this control system comprises drum, is positioned at the boiler furnace of drum inside, burner, circulating pump, expansion oil groove, oil storage system, separator and use hot equipment; Burner is connected with boiler furnace for heating to boiler furnace, and boiler furnace is connected successively with hot equipment, separator and circulating pump by fuel feed pump; Oil storage system is connected with filling pump by pipeline, and filling pump is connected with circulating pump and expansion oil groove respectively by pipeline, and expansion oil groove is connected with separator by pipeline; 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, filling 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.
2. the control system of fuel vapor heat conducting oil boiler according to claim 1, it is characterized in that: on fuel feed pump, be also provided with charge oil pressure controller, oil temperature supplying siren, oil temperature supplying controller, flow monitor, fuel feeding force controller, oil temperature supplying siren, oil temperature supplying controller, flow monitor at boiler furnace and with hot equipment between, charge oil pressure controller, oil temperature supplying siren, oil temperature supplying controller, flow monitor are all connected with the input interface of controller by wireless.
3. the control system of fuel vapor heat conducting oil boiler according to claim 1, is characterized in that: described human-computer interface module is color touch screen.
4. the control system of fuel vapor heat conducting oil boiler according to claim 3, is characterized in that: the pipeline that circulating pump is connected with boiler furnace is provided with return pressure controller and return pressure temperature controller.
5. the control system of fuel vapor heat conducting oil boiler according to claim 4, is characterized in that: on described expansion oil groove, be provided with expansion level monitoring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420041518.5U CN203731707U (en) | 2014-01-23 | 2014-01-23 | Control system for fuel oil gas conduction oil boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420041518.5U CN203731707U (en) | 2014-01-23 | 2014-01-23 | Control system for fuel oil gas conduction oil boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203731707U true CN203731707U (en) | 2014-07-23 |
Family
ID=51201776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420041518.5U Expired - Lifetime CN203731707U (en) | 2014-01-23 | 2014-01-23 | Control system for fuel oil gas conduction oil boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203731707U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542085A (en) * | 2019-08-28 | 2019-12-06 | 中国民用航空总局第二研究所 | Fuel oil constant temperature and pressure control system of oil burner |
| CN112856824A (en) * | 2021-01-20 | 2021-05-28 | 山东滨化东瑞化工有限责任公司 | Ignition and single-mixed-combustion DCS (distributed control System) control method for natural gas or hydrogen of heat-conducting oil furnace |
| CN113915601A (en) * | 2021-09-09 | 2022-01-11 | 中国五环工程有限公司 | Automatic control system and control method for air-fuel ratio of oil-gas boiler |
-
2014
- 2014-01-23 CN CN201420041518.5U patent/CN203731707U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542085A (en) * | 2019-08-28 | 2019-12-06 | 中国民用航空总局第二研究所 | Fuel oil constant temperature and pressure control system of oil burner |
| CN112856824A (en) * | 2021-01-20 | 2021-05-28 | 山东滨化东瑞化工有限责任公司 | Ignition and single-mixed-combustion DCS (distributed control System) control method for natural gas or hydrogen of heat-conducting oil furnace |
| CN113915601A (en) * | 2021-09-09 | 2022-01-11 | 中国五环工程有限公司 | Automatic control system and control method for air-fuel ratio of oil-gas boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |