CN2622560Y - Frequency-changing blasting type gas burner - Google Patents
Frequency-changing blasting type gas burner Download PDFInfo
- Publication number
- CN2622560Y CN2622560Y CN 03243701 CN03243701U CN2622560Y CN 2622560 Y CN2622560 Y CN 2622560Y CN 03243701 CN03243701 CN 03243701 CN 03243701 U CN03243701 U CN 03243701U CN 2622560 Y CN2622560 Y CN 2622560Y
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- CN
- China
- Prior art keywords
- combustor
- motor
- burner
- frequency
- cyclelog
- 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
- 238000005422 blasting Methods 0.000 title 1
- 238000006243 chemical reaction Methods 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 17
- 238000007664 blowing Methods 0.000 claims description 8
- 239000002737 fuel gas Substances 0.000 claims description 8
- 239000000567 combustion gas Substances 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007706 flame test Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007659 motor function Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Regulation And Control Of Combustion (AREA)
Abstract
A frequency-conversion automatic blast gas combustor includes a combustor body, a blower, a motor, a gas pipe and a control box; the blower is connected with the motor and the combustor identity; the gas pipe is connected with the combustor identity and the control box is disposed on the back of the combustor identity. A transducer is connected with the motor and disposed in the control box. The air intake duct of the combustor identity is disposed with no wind rate regulation device. The utility model can regulate the rotation speed by the transducer to realize the precise adjustment of the needed air quantity. The utility model is characterized by high-degree automation, easy regulation, efficient combustion, little operational noise and obvious effect of energy saving. Therefore, the utility model is the ideal combustor for civilian boiler and various industrial furnaces.
Description
Technical field
The utility model relates to the automatic blowing type gas burner of the frequency conversion of using on a kind of gas burner, particularly civil boiler and the various industrial heating furnace.
Background technology
China recent years has been brought into use the forced-air blast automatic combustor on various civil boilers and various industrial heating furnace.But because domestic automatic combustor industry is started late, what therefore generally use on heating furnace at present is the import automatic combustor.The import burner adopts the mechanical type air door regulating mechanism that air quantity is regulated, and mainly has following problem:
1, by being contained in the open degree of the servomotor linkage adjustment air door on the air channel, controls and adjust the required air quantity of burning.Therefore just determined it can not realize accurate air distribution.
When 2, sucking owing to the Cryogenic air spontaneous combustion device air inlet duct in the external environment condition, the warm-humid air of crossing in cold extraneous air and the burner operation environment meets, can make the connecting rod that is installed in the mechanical air door automatic regulating device on the air channel, baffle plate, axis hole cooperation etc. locate to freeze, frozen motion mechanism, dewfall generation corrosion, the dead motion that becomes rusty causes losing motor function, and burner can't normally be moved.
3, work in cold environment, because burning institute required airflow can not accurately be supplied with, the success rate of igniting significantly reduces automatically.The automatic reliability of operation of the equipment that has a strong impact on.
4, adopt servo linkage to regulate air quantity, blower fan is all the time with the rated speed operation, so during the operation of burner middle-low load, waste of energy is big.
Summary of the invention
The purpose of this utility model is to have omitted the servo lever regulated mechanism of air door, overcome the deficiencies in the prior art, provide a kind of with Application of frequency conversion technique in automatic air blast burner, by frequency converter is linked to each other with motor, with control motor rotation frequency, realize the accurate adjustment of burning required air quantity, reach the low temperature reliability service, improve efficiency of combustion, the energy-conservation automatic blowing type gas burner of frequency conversion.
The utility model is achieved in that and comprises burner body, air blast, fuel gas pipeline, gas control valve, control element, switch board, fuel gas pipeline links to each other with burner body, gas control valve is installed on the fuel gas pipeline, air blast links to each other with motor and is connected with burner body, the control executive component is by motor, magnetic valve is formed, air blast and magnetic valve wiring are all gone into to switch board, switch board is positioned at the afterbody of burner body, its structural feature is, the frequency converter that is used to regulate rotation speed of fan is connected with cyclelog by the relay group, be connected frequency converter with motor, cyclelog, the relay group places in the switch board.
Compared with prior art, the utlity model has following advantage: adopt frequency converter to regulate the mode of motor speed, realize accurate adjustment, so that burner is when operation to the burner air distribution, obtain desirable coefficient of excess air (≤1.05), improve efficiency of combustion (〉=99.5%).The utility model is after burner carries out safety detection and prepurge, and frequency converter transfers to fire speed accurately with motor speed, and corresponding igniting air quantity is provided, and lights a fire, and guarantees the success of igniting.After lighting a fire successfully, the automatic blowing type gas burner of frequency conversion provides two kinds of burning regulative modes.1, multistage regulative mode; Frequency converter is divided into multistage frequency output in specified reference frequency output, (the corresponding motor speed of each frequency) every grade of frequency is corresponding with the burning load level, by cyclelog controlled frequency output stage.Every grade of firepower and frequency can independently be revised according to the scene.2, step-less adjustment mode; Frequency converter presses in specified reference frequency output that linear frequency output is corresponding with load output, and every output frequency parameter is controlled by proportional controller, can on-the-spot correction.During the operation of burner middle-low load, current of electric is much smaller than rated current.Remarkable saves energy (saves energy 〉=45%), and the noise of blower fan can reduce operation the time.His another advantage is to adopt frequency converter, still can directly start when blower motor power is big, the reduced-voltage starting device need be set.
The explanation of accompanying drawing drawing
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the side view of Fig. 1
Fig. 3 is the control circuit schematic diagram
Fig. 4 is a control flow chart
The specific embodiment
Below in conjunction with drawings and Examples in detail the utility model is described in detail.
The utility model is made up of burning and control two parts, its concrete structure embodiment is shown in accompanying drawing 1,2, motor 5 is connected with blower wheel in being contained in burner body 2, and fuel gas pipeline 3 is connected with burner body 2, and gas control valve 4 is contained on the fuel gas pipeline 3.Switch board 1 is positioned at the afterbody of burner body 2.Compared with prior art, air door is not set on the air inlet duct of burner body 2 and regulates servo linkage.
Control section of the present utility model is made up of cyclelog 7, frequency converter 6 and other control element.Control element is by the relay group, and compositions such as proportional controller are positioned at switch board.The control executive component is made up of blast detector, igniter, magnetic valve group, and magnetic valve and air blast wiring all enter switch board, and switch board places the afterbody of burner body.As shown in Figure 3, be connected by the relay group with cyclelog 7 as the frequency converter 6 of control element, cyclelog 7 is by coil and then the control frequency converter 6 of control relay group J1, J2, J3, SJ1.Major loop is provided with K switch 1, frequency converter 6, K switch 2, electrothermal relay F2.Frequency converter 6 is connected with motor M V, and the effect of frequency converter 6 is rotating speeds of regulating air blast.Blast switch PA, ignition TA, flame detector TZ as the control program executive component are connected with cyclelog 7 respectively.Combustion gas high-voltage switch gear PM, low tension switch Pm are connected with cyclelog 7.Relay group described in the utility model is made up of auxiliary reclay J, time relay sj.The different contacts of auxiliary reclay J, time relay sj are connected with cyclelog 7, are connected with frequency converter 6 simultaneously; On control loop, be connected with indicator lamp L1, L2, L3.
Design principle of the present utility model is: realize the accurate adjustment of required air quantity by the variable frequency adjustment blower speed.According to the needs of general boiler heating load, set in advance multiple frequency, correspond respectively to duty not of the same race, operating frequency not of the same race promptly is provided.Along with the variation of boiler live load, cyclelog moves corresponding program.Under the different load, both gas quantity was regulated, by the frequency output of the relay that links to each other with cyclelog or proportional controller control frequency converter, can make combustion gas and air reach accurate proportioning simultaneously according to the on-the-spot independent setting of revising right tolerance and frequency converter of actual motion state.
Running of the present utility model such as Fig. 4: under the normal situation of various instrument measurements on the boiler, burner allows operation, the cyclelog ignition procedure that brings into operation.At first carry out the program self check, self check is normal, and then air blast begins prepurge.The blast detector detects air quantity, blast simultaneously.After detection was swept to the scheduled time by, pre-blowing, blower fan was with the predefined spark rate running of frequency converter, and igniter begins igniting, and lighting valve is opened, the supply combustion gas.After the flame test point pyrogene merit, flame stabilization is opened safety valve and main gas valve after 10 seconds.Flame detector is surveyed flame from start to finish.Flame by the control of boiler temperature proportional controller, is regulated burning load after setting up automatically, promptly amount of consumed gas is regulated, for guaranteeing efficiency of combustion and effect, air quantity is accurately regulated simultaneously by frequency converter, realize the best proportioning of gas quantity and air quantity, equipment normally moves.
Claims (3)
1, the automatic blowing type gas burner of a kind of frequency conversion, comprise burner body, air blast, fuel gas pipeline, gas control valve, control element, switch board, fuel gas pipeline links to each other with burner body, gas control valve is installed on the fuel gas pipeline, air blast links to each other with motor and is connected with burner body, the control executive component is by motor, magnetic valve is formed, air blast and magnetic valve wiring are all gone into to switch board, switch board is positioned at the afterbody of burner body, it is characterized in that, the frequency converter that is used to regulate rotation speed of fan is connected with cyclelog by the relay group, is connected frequency converter with motor, cyclelog, the relay group places in the switch board.
2, the automatic blowing type gas burner of frequency conversion according to claim 1, it is characterized in that, described blast switch PA, ignition TA, flame detector are connected with cyclelog respectively, and combustion gas high-voltage switch gear PM, low tension switch Pm and relay group also are connected with cyclelog respectively.
3, the automatic blowing type gas burner of frequency conversion according to claim 1 is characterized in that, the servo linkage of air door is not set on the air inlet duct of burner body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03243701 CN2622560Y (en) | 2003-04-09 | 2003-04-09 | Frequency-changing blasting type gas burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03243701 CN2622560Y (en) | 2003-04-09 | 2003-04-09 | Frequency-changing blasting type gas burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2622560Y true CN2622560Y (en) | 2004-06-30 |
Family
ID=34250946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03243701 Expired - Lifetime CN2622560Y (en) | 2003-04-09 | 2003-04-09 | Frequency-changing blasting type gas burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2622560Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072489A (en) * | 2011-02-25 | 2011-05-25 | 凯明企业有限公司 | burner |
| CN102563645A (en) * | 2011-11-26 | 2012-07-11 | 江苏欧标有限公司 | Gas burner |
-
2003
- 2003-04-09 CN CN 03243701 patent/CN2622560Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072489A (en) * | 2011-02-25 | 2011-05-25 | 凯明企业有限公司 | burner |
| WO2012113285A1 (en) * | 2011-02-25 | 2012-08-30 | 凯明企业有限公司 | Burner |
| CN102563645A (en) * | 2011-11-26 | 2012-07-11 | 江苏欧标有限公司 | Gas burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130409 Granted publication date: 20040630 |