CN203656972U - Closed-loop combustion control system - Google Patents
Closed-loop combustion control system Download PDFInfo
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- CN203656972U CN203656972U CN201320365466.2U CN201320365466U CN203656972U CN 203656972 U CN203656972 U CN 203656972U CN 201320365466 U CN201320365466 U CN 201320365466U CN 203656972 U CN203656972 U CN 203656972U
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- gas
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Abstract
The utility model designs a closed-loop combustion control system which comprises a fuel gas path used for providing fuel gas, an air path used for providing air, a control system connected with the fuel gas path and the air path respectively so as to adjust inflow amount of the fuel gas path and the air path, as well as a burner, wherein the burner is provided with a fuel gas inlet, an air inlet, a flame injection orifice and an ignition controller; and the fuel gas inlet is connected with the fuel gas path, the air inlet is connected with the air path, and the ignition controller is connected with the control system. The closed-loop combustion control system has the advantages as follows: pressure, temperature and flow control are integrated, the control accuracy is high, and the response speed is high.
Description
Technical field
The utility model relates to industrial combustion field, specifically, and a kind of closed loop combustion control system.
Background technology
At present, existing air-fuel ratio (air, combustion gas) is controlled the mode controls such as synchronous proportional valve, combustion gas equalizing valve that adopt more, is characterized in, in burner power bracket, regulates than limited, regulates than large, and air-fuel ratio changes greatly.
Utility model content
The utility model object be solve air-fuel ratio can not accurate adjustment, a kind of novel closed loop combustion control system is proposed.
To achieve these goals, the technical solution of the utility model is achieved in that a kind of closed loop combustion control system, it is characterized in that, comprise,
One combustion gas gas circuit, for providing combustion gas;
One air gas circuit, for providing air;
One control system, this control system is connected with this air gas circuit with this combustion gas gas circuit respectively, uses the air inflow of adjusting this combustion gas gas circuit and air gas circuit; And,
One burner, this burner has into gas port, and enters air scoop, a flame jet and an ignition controller, and this enters gas port and is connected with this combustion gas gas circuit, and this enters air scoop and is connected with this air gas circuit, and this ignition controller is connected with this control system.
Wherein, this combustion gas gas circuit, comprises,
One fuel gas source;
One combustion gas strainer valve, the air inlet of this combustion gas strainer valve is connected with this fuel gas source by a gas shutoff valve;
One gas pressure-reducing valve, the air inlet of this gas pressure-reducing valve is connected with the gas outlet of this combustion gas strainer valve, and the gas outlet of this gas pressure-reducing valve is connected with a gaseous-pressure switch and a gaseous-pressure display list respectively by a gas shutoff valve;
Valve is cut in one combustion gas soon, and the air inlet of valve is cut soon in this combustion gas and the gas outlet of this gas pressure-reducing valve is connected;
And,
One Gas controller, the air inlet of this Gas controller is connected with the gas outlet that valve is cut in this combustion gas soon, and the gas outlet of this Gas controller is connected with the gas port of entering of this burner by a gas shutoff valve.
This air gas circuit, comprises,
One air-source;
One combustion fan, the air inlet of this combustion fan is connected with this air-source, and the gas outlet of this combustion fan is connected with an air pressure switch and a pressure display table respectively by an air cutoff valve;
One air dish valve, the air inlet of this air dish valve is connected with the gas outlet of this combustion fan; And,
One air controller, the air inlet of this air controller is connected with the gas outlet of this air butterfly valve, and the gas outlet of this air controller is connected with the air scoop that enters of this burner.
This control system, comprises,
One flame detects controller, for detection of the flame of this burner;
One Programmable Logic Controller PLC, the input of this Programmable Logic Controller PLC detects controller with this gaseous-pressure display list, this air pressure display list and this flame respectively and is connected, and uses and gathers the force value of this combustion gas gas circuit, force value and this flame of this air gas circuit; The input of this Programmable Logic Controller PLC is connected with this Gas controller, this air controller, this ignition controller respectively, uses and adjusts the combustion gas input quantity of this combustion gas gas circuit, air input and the starting ignition of this air gas circuit.
As a kind of preferred version of closed loop combustion control system, this gaseous-pressure switch is made up of a low-pressure fuel gas pressure switch and a high-pressure gas pressure switch.
Compared with prior art, at least there is following advantage in the utility model: 1, controller can be realized precise control of flew, integrates pressure and temperature and compensate.
2, there is voltage stabilizing function.
3, start preheating time less than 1 second, moment is ready.
4, reaction and control rate: flowmeter response speed is only 10 milliseconds, flow controller response speed is only 50-100 millisecond.
5, flow controller can be controlled absolute pressure and volume flow.
6, range is adjustable than wide 200:1, and pipe arrangement layout is compacter, saves installing space.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the schematic diagram of panel in the utility model.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is elaborated.
Refer to Fig. 1, shown in figure is a kind of closed loop combustion control system, comprises that a combustion gas gas circuit 1, an air gas circuit 2, a burner 3, a control system and a panel 4 form.
This combustion gas gas circuit 1, comprises,
One fuel gas source (not shown);
One combustion gas strainer valve 12, the air inlet of this combustion gas strainer valve 12 is connected with this fuel gas source by a gas shutoff valve 11;
One gas pressure-reducing valve 13, the air inlet of this gas pressure-reducing valve 13 is connected with the gas outlet of this combustion gas strainer valve 12, the gas outlet of this gas pressure-reducing valve 13 by a gas shutoff valve 11 respectively with a gaseous-pressure switch 17 and a gaseous-pressure display list 16;
Valve 14 is cut in one combustion gas soon, and the air inlet that valve 14 is cut in this combustion gas is soon connected with the gas outlet of this gas pressure-reducing valve 13; And,
One Gas controller 15, the air inlet of this Gas controller 15 is connected with the gas outlet that valve 14 is cut in this combustion gas soon, and the gas outlet of this Gas controller 15 is connected with the gas port 31 of entering of this burner 3 by a gas shutoff valve 11.
This air gas circuit 2, comprises,
One air-source (not shown);
One combustion fan 21, the air inlet of this combustion fan 21 is connected with this air-source, and the gas outlet of this combustion fan 21 is connected with an air pressure switch 23 and a pressure display table 24 respectively by an air cutoff valve 22;
One air dish valve 25, the air inlet of this air dish valve 25 is connected with the gas outlet of this combustion fan 21; And,
One air controller 26, the air inlet of this air controller 26 is connected with the gas outlet of this air butterfly valve 25, and the gas outlet of this air controller 26 is connected with the air scoop 32 that enters of this burner 3.
This burner 3 has into gas port 31, and enters air scoop 32, a flame jet and an ignition controller 33, and this enters gas port and is connected with this combustion gas gas circuit, and this enters air scoop and is connected with this air gas circuit, and this ignition controller is connected with this control system.
On this control panel 4, be provided with status indicator lamp group 41, temperature control table 42, flame current table 43, touch screen controller 44.
This control system (not shown), comprises,
One flame detects controller, for detection of the flame of this burner;
One Programmable Logic Controller PLC, the input of this Programmable Logic Controller PLC detects controller with this gaseous-pressure display list, this air pressure display list and this flame respectively and is connected, and uses and gathers the force value of this combustion gas gas circuit, force value and this flame of this air gas circuit; The output of this Programmable Logic Controller PLC is connected with this Gas controller, this air controller, this ignition controller respectively, uses and adjusts the combustion gas input quantity of this combustion gas gas circuit, air input and the starting ignition of this air gas circuit.
Using method is as follows:
1, after start, first Programmable Logic Controller PLC initializes self check, the operating position of each above-mentioned workpiece is entered
Row initializes, and each setup parameter initializes and confirms.
2, after self check completes, confirm burning condition, air fuel gas pressure satisfies condition.
3, purge: burner hearth is carried out to prefiring purging.
4, igniting: magnetic valve action, put little fire.Valve, in minimum position, can be realized direct-fire.
5,, after lighting a fire successfully, automatically regulate by being set as temperature PID.First determine that Gas controller is base
Standard, flow information sends PLC controller to, after PLC program is calculated, sends control signal to air
Controller, makes it guarantee optimal air-fuel ratio.Air mass flow information passes to PLC controller simultaneously,
After PLC program is calculated, feed back to Gas controller and finely tune, so form the empty combustion of a closed loop
Compare control loop.Realize the accurate control of air-fuel ratio.
6, system is chain, and in the time making new advances fault, system carries multiple chain function, guarantees the security of burning.
Below only expressed embodiment of the present utility model, it describes comparatively concrete and detailed, but can not
Therefore be interpreted as the restriction to utility model patent scope.It should be pointed out that common for this area
Technical staff, without departing from the concept of the premise utility, can also make some distortion and change
Enter, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should
Be as the criterion with claims.
Claims (3)
1. a closed loop combustion control system, is characterized in that, comprise,
One combustion gas gas circuit, for providing combustion gas;
One air gas circuit, for providing air;
One control system, this control system is connected with this air gas circuit with this combustion gas gas circuit respectively, uses the air inflow of adjusting this combustion gas gas circuit and air gas circuit; And,
One burner, this burner has into gas port, and enters air scoop, a flame jet and an ignition controller, and this enters gas port and is connected with this combustion gas gas circuit, and this enters air scoop and is connected with this air gas circuit, and this ignition controller is connected with this control system.
2. according to a kind of closed loop combustion control system described in claim 1, it is characterized in that: this combustion gas gas circuit, comprise,
One fuel gas source;
One combustion gas strainer valve, the air inlet of this combustion gas strainer valve is connected with this fuel gas source by a gas shutoff valve;
One gas pressure-reducing valve, the air inlet of this gas pressure-reducing valve is connected with the gas outlet of this combustion gas strainer valve, and the gas outlet of this gas pressure-reducing valve is connected with a gaseous-pressure switch and a gaseous-pressure display list respectively by a gas shutoff valve;
Valve is cut in one combustion gas soon, and the air inlet of valve is cut soon in this combustion gas and the gas outlet of this gas pressure-reducing valve is connected;
And,
One Gas controller, the air inlet of this Gas controller is connected with the gas outlet that valve is cut in this combustion gas soon, and the gas outlet of this Gas controller is connected with the gas port of entering of this burner by a gas shutoff valve;
This air gas circuit, comprises,
One air-source;
One combustion fan, the air inlet of this combustion fan is connected with this air-source, and the gas outlet of this combustion fan is connected with an air pressure switch and a pressure display table respectively by an air cutoff valve;
One air dish valve, the air inlet of this air dish valve is connected with the gas outlet of this combustion fan; And,
One air controller, the air inlet of this air controller is connected with the gas outlet of this air butterfly valve, and the gas outlet of this air controller is connected with the air scoop that enters of this burner;
This control system, comprises,
One flame detects controller, for detection of the flame of this burner;
One Programmable Logic Controller PLC, the input of this Programmable Logic Controller PLC detects controller with this gaseous-pressure display list, this air pressure display list and this flame respectively and is connected, and uses and gathers the force value of this combustion gas gas circuit, force value and this flame of this air gas circuit; The input of this Programmable Logic Controller PLC is connected with this Gas controller, this air controller, this ignition controller respectively, uses and adjusts the combustion gas input quantity of this combustion gas gas circuit, air input and the starting ignition of this air gas circuit.
3. according to a kind of closed loop combustion control system described in claim 2, it is characterized in that: this gaseous-pressure switch is made up of a low-pressure fuel gas pressure switch and a high-pressure gas pressure switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320365466.2U CN203656972U (en) | 2013-06-24 | 2013-06-24 | Closed-loop combustion control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320365466.2U CN203656972U (en) | 2013-06-24 | 2013-06-24 | Closed-loop combustion control system |
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| Publication Number | Publication Date |
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| CN203656972U true CN203656972U (en) | 2014-06-18 |
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| CN201320365466.2U Expired - Fee Related CN203656972U (en) | 2013-06-24 | 2013-06-24 | Closed-loop combustion control system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534508A (en) * | 2014-12-24 | 2015-04-22 | 潍坊思创环保设备有限公司 | Safe marsh gas combustion control device and method |
| CN104570051A (en) * | 2015-01-29 | 2015-04-29 | 湘潭无线电有限责任公司 | High-power program-control vibrating source and method for generating vibrating source |
| CN107255275A (en) * | 2017-05-24 | 2017-10-17 | 江苏师范大学 | A kind of light energy-saving leak detection formula natural gas boiler burner |
| CN111964095A (en) * | 2020-08-25 | 2020-11-20 | 松山湖材料实验室 | Combustion system control method and device and combustion system |
-
2013
- 2013-06-24 CN CN201320365466.2U patent/CN203656972U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534508A (en) * | 2014-12-24 | 2015-04-22 | 潍坊思创环保设备有限公司 | Safe marsh gas combustion control device and method |
| CN104534508B (en) * | 2014-12-24 | 2016-09-07 | 潍坊思创环保设备有限公司 | A kind of biogas safe combustion controls device and control method |
| CN104570051A (en) * | 2015-01-29 | 2015-04-29 | 湘潭无线电有限责任公司 | High-power program-control vibrating source and method for generating vibrating source |
| CN107255275A (en) * | 2017-05-24 | 2017-10-17 | 江苏师范大学 | A kind of light energy-saving leak detection formula natural gas boiler burner |
| CN107255275B (en) * | 2017-05-24 | 2019-02-26 | 江苏师范大学 | A kind of light energy-saving leak detection formula natural gas boiler burner |
| CN111964095A (en) * | 2020-08-25 | 2020-11-20 | 松山湖材料实验室 | Combustion system control method and device and combustion system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20170624 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |